EP1425492B1 - Fireproof profile component and method for production thereof - Google Patents

Description

The invention relates to a fire-resistant profile component for the production of windows, doors, wall elements, facades and the like. Furthermore, the invention relates to a method for producing such a fire-resistant profile component.

In the EP 0 717 165 B1 is described a fire-retardant profile component, which is made as a multi-chamber profile of light metal, preferably made of aluminum, with a heat flow reducing insulating web. In this framework, the outer and the inner shell each define a hollow chamber These two hollow chambers are connected by means of an insulating web and embedded bridge bridges, so that a three-chamber profile is formed. In these chambers fire protection plates are inserted, which are fixed by means of metal springs. In case of fire, the fire protection plates release water of crystallization, which cools the aluminum profile and prevents melting of the aluminum profile facing the fire. This design has the disadvantage that it is only suitable for fire resistance times up to 30 minutes. Higher fire resistance times of 60, 90 or 120 minutes can not be achieved hereby.

From the EP 0 785 334 B1 Furthermore, a frame system is known, which is also made of aluminum multi-chamber profiles. In this frame system, it is proposed that in each case an aluminum core profile is formed, which carries the fire-resistant glazing. This core profile is preceded by outer and inner shells, so that here also a three-chamber profile is formed. The supporting core profile or the two outer shells are connected to a heat flow reducing insulating web. The chamber of the core profile or the two hollow chambers of the outer shells are filled with a fire protection insulation, so that the outer shells protect the bearing core of the aluminum profile in case of fire.

From the DE 44 43 762 A1 is a fire protection element, in particular for the construction of a framework on a building for holding a clampable component, such as a fire-resistant glazing or plate, known, comprising a core profile, a surrounding the core profile heat-insulating filling material, a surrounding the filling compound and an outer cover strip for clamping the Component, wherein the core profile, the filling compound and the casing form a composite body. The framework is designed so that on the side facing the fire side supporting light metal profiles can be used, the melting point is lower than expected in case of fire, the metal profiles acting temperature, a melting of these supporting light metal profiles over a predetermined safety period should be prevented. For this purpose, plates or moldings of a heat-binding, hydrophilic adsorbent with a high water content are attached to the outer sides and / or on the insides of the metal profiles made of aluminum. In a preferred embodiment, the material of the plates or moldings is a mixture of gypsum and alum, which acts energy-consuming when exposed to heat. When a response temperature is reached, the plates or shaped bodies release water of crystallization, by means of which the metal construction is cooled. The energy-dissipating material can also be filled in liquid form in the inner chamber of a metal profile and then binds in the inner chamber to a solid molding.

The invention has for its object to provide a producible with reduced effort fire-resistant profile component and a method for its preparation, wherein the profile component is suitable for simple and inexpensive production to pass fire resistance times of 30, 60, 90 and 120 minutes.

This object is achieved by a fire-resistant profile component according to claim 1 and a by a method for producing a fire-resistant profile component according to claim 39.

The fire-resistant profile component according to the invention is thus an advantageously thermally decoupled single-chamber composite profile.

According to the inventive method for producing the fire-resistant profile component are initially two substantially U-shaped profile parts, in particular of extruded aluminum, forming an Innentragschale and Aussentragschale, at their free leg ends of the legs of the U-profile by means of thermally isolating insulating bars to a single Connected hollow chamber surrounding single-chamber composite profile and then at least partially filled the hollow chamber in a core area with a fire protection insulation. In the middle of the single-chamber composite profile, a thermal insulation is introduced which comprises a sandwich panel.

Thus, at least the inner core region of the component according to the invention is connected to the trays without separation, so that the cooling effect of the large inner Füllmassevolumens can act directly on the outer walls of the tray. More of the trays enclosed sub-chambers of the hollow chamber can either remain unfilled or also be filled by the fire insulation or otherwise heat-insulating.

The filling of the profile can be done by inserting prefabricated moldings or by filling a mortar-like mass.

The fire insulation can z. B. consist of a matrix of glass fiber reinforced mineral substances.

The fire protection protection effect of the profile component according to the invention is created by the interaction of the individual components. In case of fire, depending on the location of the fire, the outer or inner aluminum support shell of the composite profile melts. The melting point of aluminum is 600-650 ° C. In a fire test according to DIN 4102, this temperature is reached after about 10 minutes according to the ETK (standard temperature curve), after 30 minutes the temperature in the furnace is 822 ° C and after 90 minutes at 986 ° C. The insulating ribs, which are made of a mechanically strong material with low thermal conductivity, prevent the heat from migrating to the aluminum tray on the side away from the fire. This aluminum tray forms in the event of fire, together with the fire protection insulating the static load-bearing cross-section. Here is particularly advantageous that the frame system of a One-chamber profile exists because the insulating material can form a stable block through the large hollow chamber together with the aluminum support shell on the side facing away from the fire, which then assumes the static supporting function.

In addition, it is of advantage here that the fire-resistant insulating composition has an insulating effect due to its composition, and advantageously this insulating compound liberates crystal-bound water under the action of heat, whereby the entire profile component according to the invention is cooled and thus the fire resistance time is positively influenced.

Another way to control the fire resistance times, is achieved by the fact that the depth of the insulating bars and thus the distance between the aluminum outer and inner shells is increased or decreased.

Another possibility is to change the depth of the inner and outer shells. Since you can not predict in case of fire, from which side the fire meets the profile component and the profile component with all anchors, fittings, glass and Paneelhalterungen must ensure the space closure, all these parts are each on the outer and inner support shell of the aluminum composite profile attached.

The particular economic advantage of EinkammerVerbundprofils invention is that the open, U-shaped aluminum inner and Außentragschalen are cheaper to manufacture than aluminum hollow sections, and that there is the possibility by means of metallic Eckwinkein the single-chamber composite profiles as normal thermally insulated aluminum profiles To process frame and subsequently fill the fire protection insulation compound through the large hollow chamber in the prefabricated frame.

The particular fire protection advantage of the single chamber composite profile according to the invention lies in the fact that a large amount of fire protection insulating material can be filled into the single-chamber composite profile by the large hollow chamber, which forms a stable insulating block in which the corner angles and connection means can be embedded. This is not possible to this extent in multi-chamber composite profiles.

In addition, it is particularly advantageous if the fire-resistant component according to the invention is filled with a fire-resistant insulating compound which contains magnesium oxychloride cement or magnesium oxysulfate cement or consists entirely of magnesium oxychloride cement or magnesium oxysulfate cement.

Magnesium oxychloride cement is based on a patent which was published in 1865 by K. u. K. Privilege archive was registered, and is called after its inventor as Sorelzement or as Magnesiazement. Mixtures of magnesium oxide (calcined magnesia) and concentrated magnesium chloride solution harden stone-like with the formation of basic chlorides whose structure is derived from that of magnesium hydroxide, and were mixed, for example, with neutral fillers and paints for the production of artificial stones and seamless floors (see DIN 272 - Magnesia screeds). as well as of artificial ivory (billiard balls) used (see Holleman-Wiberg, Textbook of Inorganic Chemistry, 81.-90. Edition, pp. 685-686 ).

Due to the long knownness of the Sorel cement, there is an extensive, but in some questions controversial literature. Thus it is known that magnesium oxychloride cement has heat and sound insulating properties. The cement has a high density, which u.a. has led to efforts to create pores in the sense of a lightweight construction. In addition, however, the cement, depending on its composition and only partially water resistant, so that he despite his fire-retardant properties only limited, i. e.g. has found use as a fire retardant impregnant, not as a solid component. The high corrosiveness of the material also played a role. For example, there is the demand for magnesia screeds (also called magnesite screeds) that they should not come into contact with steel parts of structures. Beams, frames and pipes must therefore be covered with bituminous paper or another barrier material before screed laying.

Since the profile component according to the invention is a composite body, which can also fulfill a supporting function, a high density of the cement has an advantageous effect. If necessary, however, it is also advantageously possible to achieve a density reduction for in particular non-load-bearing profile components according to the invention. The corrosiveness can be counteracted by, for example, a protective coating on the Interior walls of the hollow chamber applied or this is made of aluminum. A possibly less high water resistance than that of conventionally used material falls only insignificant weight due to the existing cladding of the mass.

1. A) 3 MgO + MgCl₂ + 11 H₂O -> MgCl₂ * 3 Mg(OH)₂ * 8 H₂O
2. B) 5 MgO + MgCl₂ + 13 H₂O -> MgCl₂ * 5 Mg(OH)₂ * 8 H₂O
3. C) 5 MgO + MgCl₂ + 17 H₂O -> MgCl₂ * 5 Mg(OH)₂ * 12 H₂O.

In the event of fire, the mass initially does not come into contact with the fire because it is surrounded by the hollow chamber wall, so that the fire resistance is not immediately effective - as with components with a coating or impregnation with magnesium oxychloride cement - but only after a possible Melting the casing. Nevertheless, it has been found that the fire-resistant profile component according to the invention surprisingly has an increased fire resistance. This can be explained by the fact that during the production of a magnesium oxychloride cement, the following reactions may take place:

1. A) 3 MgO + MgCl ₂ + 11 H ₂ O -> MgCl ₂ * 3 Mg (OH) ₂ * 8 H ₂ O
2. B) 5 MgO + MgCl ₂ + 13 H ₂ O -> _MgCl2 * 5 Mg (OH) ₂ * 8 H ₂ O
3. C) 5 MgO + MgCl ₂ + 17 H ₂ O -> _MgCl2 * 5 Mg (OH) ₂ * 12 H ₂ O.

From this it can be seen that in the hardened cement highly water of crystallization is bound in a matrix of magnesium chloride and magnesium hydroxide, so that due to the presence of hydroxides and oxide hydrates of some authors the designation magnesium oxychloride cement is completely rejected, while other authors defend this designation , An exact explanation of the structure is difficult and also results in different ways from the composition or the proportions of the raw materials used for the production. In any case, however, obviously as - and even more so - in the case of the above-mentioned known filling of gypsum and alum in indirect heat (heat conduction through the wall of the enclosure) water is released or evaporated, resulting in an endothermic reaction or with the recording a high amount of latent heat is connected and acts cooling on the casing. The high thermal conductivity of an aluminum material has a synergistic effect.

With regard to an optimized property profile, it has proved to be particularly advantageous if the magnesium oxychloride cement has a composition with a molar ratio MgCl ₂ / Mg (OH) ₂ / H ₂ O of 1: (2.5 to 5): (8 to 12 ) having.

For example, a cement prepared according to the above-mentioned equation B) and having particularly good mechanical properties has a molar ratio of MgCl ₂ / MgO / H ₂ O of 1: 5: 13, taking into account the chemical bonding and the bonding in the crystal Water on - or a molar ratio MgCl ₂ / Mg (OH) ₂ / H ₂ O of 1: 5: 8 with individual consideration of the chemically and the water bound in the crystal.

The filler of the magnesium oxychloride cement may also be prepared with the addition of magnesium sulfate, whereby it may consist of a matrix in which Mg (OH) ₂ , MgCl ₂ , MgSO ₄ , Mg _x OCl, Mg _y OSO ₄ and Mg _z ClSO ₄ molecules or ions are contained, which may have an advantageous effect on increased water of crystallization and the water resistance of the cement. (The indices x, y, z can be integer or non-integer values.) In this case, it has proved to be particularly advantageous if the Magnesiumoxychlorid magnesium oxysulfate cement formed by admixing magnesium sulfate, a composition having a molar ratio of MgCl ₂ / MgSO ₄ of 1: (0.02 to 1.9).

• D) MgO + 2 MgSO₄ + 4 H₂O -> 2 MgSO₄ * Mg(OH)₂ * 3 H₂O
• E) MgO + MgSO₄ + 6 H₂O ---> MgSO₄ * Mg(OH)₂ * 5 H₂O
• F) 3 MgO + MgSO₄ + 11 H₂O -> MgSO₄ * 3 Mg(OH)₂ * 8 H₂O
• G) 5 MgO + MgSO₄ + 8 H₂O -> MgSO₄ * 5 Mg(OH)₂ * 3 H₂O,

wobei allerdings nur ein nach der Gleichung F) hergestellter Zement als chemisch stabil bei Raumtemperatur angesehen wird. Ein solcher in einem erfindungsgemäßen Brandschutzelement verwendeter Magnesiumoxysulfat-Zement kann mit Vorteil eine Zusammensetzung mit einem molaren Verhältnis MgSO₄ / Mg(OH)₂ / H₂O von 1 : (2,5 bis 3,5) : (6 bis 10) aufweisen.In the case of the formation of magnesium oxysulfate cement, the following chemical reaction equations are used:

• D) MgO + 2MgSO ₄ + 4H ₂ O -> 2MgSO ₄ * Mg (OH) ₂ * 3H ₂ O
• E) MgO + MgSO ₄ + 6H ₂ O ---> MgSO ₄ * Mg (OH) ₂ * 5H ₂ O
• F) 3 MgO + MgSO ₄ + 11 H ₂ O -> MgSO ₄ * 3 Mg (OH) ₂ * 8 H ₂ O
• G) 5 MgO + MgSO ₄ + 8 H ₂ O -> MgSO ₄ * 5 Mg (OH) ₂ * 3 H ₂ O,

however, only a cement made according to Equation F) is considered to be chemically stable at room temperature. Such a magnesium oxysulfate cement used in a fire protection member of the present invention may advantageously have a composition having a molar ratio of MgSO ₄ / Mg (OH) ₂ / H ₂ O of 1: (2.5 to 3.5) :( 6 to 10) ,

The filling of a magnesium oxysulfate cement can also be prepared with the addition of magnesium chloride. Also in this case, a matrix having a qualitative composition as described above for a magnesium oxychloride cement in admixture with magnesium sulfate may be formed. An advantageous composition is present at a molar ratio MgSO ₄ / MgCl ₂ of 1: (0.02 to 1.9). A filler with a lower chloride content is less corrosive than a filler with a high chloride content.

Hereinafter, a mixed cement composed of magnesium chloride and magnesium sulfate is referred to as a magnesium oxychloride-magnesium oxysulfate cement when the proportion of magnesium chloride in the production of the composition is higher than the proportion of magnesium sulfate and magnesium oxysulfate-magnesium oxychloride cement if the conditions are reversed. As the sulfate content increases, on the one hand, water resistance increases, but on the other hand, the mechanical stability of the cement is also reduced.

When preparing the filling mass formulation (determination of the gravimetric weight ratio), the purity of the raw materials used or the water of crystallization already contained in the salts from the outset must be taken into account.

Further property improvements of the fire-resistant profile component according to the invention are also to be achieved in that the fire protection insulating water glass, especially sodium silicate, and / or silica, especially in gel form, the latter initially in a particularly advantageous manner by precipitation by means of metal salt and / or acid in the filling material (Water solution contained in aqueous solution) can be produced. Further advantageous embodiments will be apparent from the dependent claims.

Figur 1

einen Schnitt durch ein feuerwiderstandsfähiges Profilbauteil mit einer Brandschutz-Festverglasung,

Figur 2

einen Schnitt durch ein feuerwiderstandsfähiges Bauteil zur Bildung einer einflügeligen Türe im Bereich der Tür-Schloß-Seite,

Figur 2a

einen Ausschnitt durch den Türfalzbereich entsprechend der Figur 2,

Figur 3

einen Schnitt durch ein feuerwiderstandsfähiges Bauteil im Bereich des Tür-Mittelstulps einer zweiflügeligen Tür,

Figur 4

einen Schnitt durch ein feuerwiderstandsfähiges Bauteil im Aufbau entsprechend der Figur 2, jedoch als öffenbares Fenster in einer Außenfassade ausgebildet,

Figur 5

einen Schnitt durch eine alternative Glashalterung,

Figur 6

eine Ansicht eines mit den erfindungsgemäßen Profilbauteilen gebildeten Rahmens,

Figur 7

einen Schnitt durch ein feuerwiderstandsfähiges Profilbauteil mit einer Brandschutz-Festverglasung in einer Abwandlung gegenüber dem in Fig. 1 dargestellten Bauteil,

Figur 8

einen Schnitt durch ein erfindungsgemäßes feuerwiderstandsfähiges Bauteil zur Bildung einer einflügeligen Türe im Bereich der Tür-Schloß-Seite,

Figur 9

einen Schnitt durch ein feuerwiderstandsfähiges Bauteil zur Bildung einer einflügeligen Türe im Bereich der Tür-Schloß-Seite, in einer Abwandlung gegenüber dem in Fig. 2 dargestellten Bauteil.

An embodiment of the invention, the drawing Figure 8, wherein the measures according to the invention can also be found in the other, graphically represented fire-resistant profile components application. Show it:

FIG. 1

a section through a fire-resistant profile component with a fire-resistant fixed glazing,

FIG. 2

a section through a fire-resistant component to form a single-leaf door in the door-lock side,

FIG. 2a

a detail through the Türfalzbereich according to the figure 2,

FIG. 3

a section through a fire-resistant component in the region of the Tür Mittelstulps a two-leaf door,

FIG. 4

a section through a fire-resistant component in the structure according to the figure 2, but designed as an openable window in an outer facade,

FIG. 5

a section through an alternative glass holder,

FIG. 6

a view of a frame formed with the profile components according to the invention,

FIG. 7

1 a section through a fire-resistant profile component with a fire-resistant fixed glazing in a modification with respect to the component shown in FIG. 1, FIG.

FIG. 8

a section through a fire-resistant component according to the invention to form a single-leaf door in the door-lock side,

FIG. 9

a section through a fire-resistant component to form a single-leaf door in the door-lock side, in a modification relative to the component shown in Fig. 2.

In the various figures of the drawings, identical or functionally corresponding parts are always provided with the same reference numerals, so that Below is largely dispensed with a multiple description in the individual versions.

1 shows by way of example a cross section through a fixed glazing made of fire-resistant profile components 1, wherein 1 denotes the inside and A denotes the outside. The fixed glazing consists of sections of the profile components 1 joined to a frame R (see Fig. 6) and a fire protection glazing 2. The profile component 1 consists of a substantially U-shaped Innenentragschale 3 and also a substantially U-shaped Außentragschale 4, the For example, are made of extruded aluminum and enclose at least one inner core region 4a. The inner and Außentragschale 3, 4 are facing each other with their side legs 5 and point towards the inside 1 and outside A. In the transverse to the window plane XX side legs 5 of the inner and outer cups 3, 4 are undercut grooves 302, 402 in the region of the free ends 300, 301, 400, 401 of the side legs 5 are mounted, the force-locking and form-fitting receive the thermally isolating insulating bars 6 by rolling. The insulating bars 6 have the property that they are poor heat-conducting and melt under heat. The profile component 1, which forms a single-chamber aluminum composite profile 35 with the inner support shell 3 and outer support shell 4 and the insulating webs 6, encloses a single hollow chamber H, which is filled with a fire protection insulating 7. The fire protection insulating compound 7 is positively connected with the inner support shell 3 and the outer support shell 4 or positively and non-positively (via adhesion forces between the fire protection insulating compound 7 and the support shells 3, 4). The insulating webs 6 and the side legs 5 of the inner and outer support shell 3, 4 can be made deep in depth transversely to the XX axis; This allows the fire resistance period to be controlled. Characterized in that between the inner support shell 3 and the outer support shell 4 and the inner core portion 4 a of the profile component 1 no the trays 3, 4 delimiting transverse walls as in an article according to the known prior art ( DE 93 21 360 U1 ) are present, no heat is supplied to the core portion 4 a, which could consume the cooling capacity of the insulating 7. Also, no different cooling of such transverse walls in comparison to the rest of the profile, which would lead to twisting of the profile component 1 when heated in case of fire.

The fire insulation 7 is made of a material which, when melting a tray 3 or 4, the opposite tray 3 or 4 before exceeding the temperatures that are prescribed according to the standards protects. This is achieved in that the insulating compound 7 is located as an insulating block in front of the fire-facing inner or outer tray 3 or 4 and the fire protection insulating mass 7 releases crystalline water under heat, so that the entire support profile 3 or 4 is cooled together with the fire protection insulating 7. In addition, to improve the carrying capacity, a metallic wire mesh 8 can be inserted into the fire protection insulating compound 7 as a mating.

The holder of the glazing 2 formed of fire-resistant glass is carried out for the normal case (not the fire) in a known manner in that the formed profile component 1 has an approximately L-shaped cross section with a glass abutment 9 parallel to the XX axis, into which a groove 405 for receiving the outer glass seal 10 is formed. On the inside I of the profile component 1, the fire protection glass 2 is held by a glass strip 11, which is inserted into a groove which is provided in a side leg 5 of the inner support shell 3, and fixed by an inner glass seal 12. The holder of the fire protection glass 2 takes place in case of fire, however, by metallic moldings 13, which are preferably used as pieces of stainless steel. Since it can not be determined in advance whether the fire strikes the inner or Außentragschale 3 and 4, the metallic mold part 13 must each be secured to the Innenentragschale 3 and the Außentragschale 4 by means of screws (the screws are not shown here). The metallic moldings 13 may have a width of 2 to 5 cm. The distance between the moldings can be between 20 and 100 cm. The higher the fire resistance duration, the smaller the distance becomes. The thickness of the molding 13 is between 0.5 and 2 mm.

In order to prevent the passage of hot combustion gases between the front side of the fire protection glass 2 and the inner support shell 3 and the Außentragschale 4, a foaming under heat seal 14 is inserted into the Glasfalz.

The above-described basic structural features of a fire-retardant or fire-resistant profile component 1 for training of frames are common to all the profile components shown in Figures 1 to 6, wherein like parts are given the same reference numerals. In this case, however, have the individual profile components of Figures 1 to 5 due to their other functions as a fixed glazing frame profile, door frame profile, door sash profile; Window frame profile, window sash or special requirements in the gap area between the door frame profile and the door sash profile or between two door sash profiles and window sash profile and window sash profile special designs.

In Figure 2, a frame 15 is shown together with a sash 16 on the lock side of a single-leaf door, between which a circumferential folding chamber F is formed. The door lock 17 in the sash 16 is fastened with a connecting plate 18 by means of screws on the inner and outer support shell 3, 4. Likewise, the strike plate 19 is attached to the frame 15 with a connecting plate 18 on the inner and outer support shell 3, 4. The anchor member 20 is fixed to the frame 15 respectively by means of screws on the inner and outer support shell 3, 4 respectively.

Basically, all fitting parts that are required for the locking of the door, as well as all mounting and anchor parts always attached to the inner and outer cups 3 and 4, regardless of the fire side, the closure and the static proper attachment of the profile component, from the the frame 15 and sash 16 is made to ensure.

In FIG. 2a, the fold region between the casement 16 and the frame 15 with the seaming chamber F is again shown. Here, the cut does not pass through the lock area of the door, but above or below the door lock 17. In the side legs 5 of the inner and outer support shells 3 and 4 of the frame 15 and the sash 16 grooves 303, 304, 403, 404 are formed, which advantageously receive a foaming under heat seal 14 to prevent the passage of hot combustion gases. In addition, a stop leg 21 is integrally formed on the frame 15 on the inner support shell 3 and on the casement 16 on the outer support shell 4 in each case parallel to the XX axis. The stop leg 21 has a molded Groove 21a for receiving a stop seal 22, which ensures the wind-tightness of the door.

FIG. 3 shows the region of a center cuff of a two-leaf door with two adjacent posts of sash frames 16 and 23. The wing frame 16 with the door lock 17 corresponds to the embodiment of Figure 2, the post of the sash or toggle 23 contains in the fire protection insulating 7 centrally located a plastic or metal existing guide tube 24 for receiving a locking bar 25. The locking bar 25 is used in conjunction Advantageously, the guide tube 24 is located centrally in the fire protection insulating compound 7 and thus approximately in the neutral bending zone, so that with strong deflection of the sash 23, which arises in case of fire, the fire protection insulating 7 not additionally with tensions is charged, which can lead to the bursting of the block from the fire protection insulating 7. Analogously, the guide tube 24 with the locking bar 25 also in the sash 16 for additional locking, e.g. a door-active wing are used.

FIG. 4 shows a framework which corresponds in structure to FIG. However, the profile training is advantageously designed so that the framework can be used as an openable window of fire protection class F30, F60 and F90 in an external facade. Since high demands are placed on the wind and rain impermeability to window constructions in the outer area, the profile formation is advantageously designed so that the rebate space between the window frame 27 and the window sash 28 in the region of the respective outer support shell 4 is increased, so that in a receiving groove 29a in the side legs of the outer support shell 4 of the window frame 27, a middle web seal 29 can be clamped, which rests with its upper lip against a stop edge of the outer support shell 4 of the window sash 28 and thus ensures the wind and rain tightness. When water enters the dewatering chamber 31, the water is passed through the drainage hole 32 back to the outside. The drainage hole 32 is covered in a known manner with a rain cap 30. The fitting installation, the glass holder and the anchors are carried out as described in Figure 2.

FIG. 5 shows an alternative holder for the fire protection glass 2. Here, the glass edge of the fire protection glass 2 is again additionally protected by a continuous metallic holding strip 33 after the outer bowl 4 or the inner glass bar 11 has melted away. The metallic retaining strip has a U-shaped cross-sectional configuration with two side legs 33a and a bottom leg 33b connecting them. The side legs 33a are formed with a continuous hollow chamber, for. B. made of corresponding steel tubes. The side legs 33a are fastened to the bottom leg 33b by means of screws (not shown here). The bottom leg 33b is about 2 to 5 cm wide and is placed at a distance of about 20 to 100 cm. The thickness of the bottom leg 33b is about 2 to 5 mm. The distance and the number of bottom legs 33b depend on the fire resistance duration. The bottom legs 33b are each secured by screws to the side legs 5 of the aluminum inner and outer cups 3, 4. Through this glass holder is achieved that regardless of the direction of the fire, the additional glass holder is always attached to a remote from the fire tray 3 and 4 respectively.

In the figure 6 is schematically the production of a frame R, as it can be used, for example, for the formation of the frame and / or casement frame used in the above figures to form windows, doors, wall panels, facades and the like. For this purpose, profile components with the above-described structure of substantially U-shaped profile parts made of extruded aluminum, each forming a Innenentragschale 3 and 4 Außentragschale and at their free leg ends by means of thermally isolating Isolierstege 6 to a single hollow chamber H surrounding composite profile 35th prefabricated and to individual frame sections, which are indicated in Figure 6 by reference R1, R2, R3 and R4, cut to length. Then, if appropriate miter-cut frame sections R1 to R4 are joined together to form the frame R shown in FIG. 6, wherein corner connectors in known embodiments may optionally be used in the corner regions between the individual sections R1 to R4. Now, at least one, but advantageously two by the reference numbers B, E in the frame section R4 representatively designated, bore (s) introduced into the thus formed frame R, which up to the surrounding of the composite profile 35 hollow chamber H, see Figure 1, rich (t) / (en). Now, it is possible to fill a liquid or plastic fire protection insulating 7 according to arrow P1 through the bore B in the hollow chamber H, wherein the air contained in the hollow chamber H can escape via the second bore E according to arrow P2. If the hollow chamber H is completely filled with the fire protection insulating compound 7, the holes B, E are closed by means of suitable closure elements and the fire protection insulating compound 7 hardens within the frame R. Alternatively, as already mentioned, it is possible for the fire protection insulating compound 7 to be introduced, at least partially, as one or more molded parts (e) adapted to the entire or a partial cross section of the hollow chamber H, which is illustrated in the drawing by reference numeral 36 ,

In the case where the frame is composed of the frame sections R1 to R4 in such a manner that the hollow chamber H surrounded by the composite section 35 in the respective frame sections R1 to R4 is circumferentially and continuously passed through the entire frame R, a single insertion of one is sufficient B hole or from two holes B, E in the frame R, to fill the entire circumferential hollow chamber H with fire protection insulation 7 can.

If, however, which is preferred for reasons of stability, corner connectors are used in the transitional areas between adjacent frame sections R1, R2, R3, R4, for each frame section R1 to R4 there is in each case a bore B for filling the fire protection insulating compound 7 and a bore E in each case introduced to escape the air contained and thus each frame section R1 to R4 of the frame R filled separately with the fire-resistant insulating 7.

An essential advantage of the method described above is that the cutting of the profile sections takes place before filling with the fire protection insulating compound 7. Since in this case only aluminum (the outer and inner support shell 3, 4) and plastic (the insulating webs 6) must be severed, this can be done on conventional sawing without much effort and wear. On the other hand, a filling with fire protection insulating compound 7 which has already been carried out at this time, owing to the additional fire protection insulating compound 7 to be severed, causes a very high saw wear, which according to the invention is avoided.

FIG. 7 essentially corresponds to FIG. 1. Here, however, at least one (not shown) molded part is inserted before filling the profiles with fire protection insulating compound 7 into the aluminum support shells 3, 4, which after filling and hardening of the fire protection insulating compound 7 again from the profile component 1 can be pulled out, so that in the single hollow chamber H at least one (in the illustrated case two) not filled with fire protection insulating 7 partial chamber (s) 37 remain. This method has the advantage that the profiles can be filled on the rod and the unfilled sub-chambers 37 can be used for the connection of the profiles with a corner bracket (corner connector).

FIG. 8 corresponds essentially to FIG. 2. Here, too, in each case in the single hollow chamber H - in each case two core areas 4a filled with fire protection insulating compound 7 in each hollow chamber H - at least one (in each case in each hollow chamber H two in each case) not provided with fire protection insulating 7 partial chamber (s) 37 is provided. In addition, in the middle of the profile component 1 is a, e.g. consisting essentially of mineral wool, thermal insulation 38, 38a used. This thermal insulation 38, 38a fulfills the purpose that when using the profile components 1 in an outdoor area in addition to the fire resistance and a good heat insulating effect of the profile component 1 can be achieved. Optionally, the fire protection insulating 7 - as shown - are reinforced with a reinforcement 39. A thermal insulation 38, 38a and / or reinforcement 39 can of course also be provided independently of the presence of unfilled partial chambers 37. Also in this embodiment, the aforementioned manufacturing advantages come into play.

The thermal insulation 38a is formed in the illustrated embodiment as a sandwich plate, the large walls are formed with immersed in fire protection insulating 7 glass fiber cloth mats. This results in a better handling for the introduction of thermal insulation, since this sandwich plate can be easily inserted.

FIG. 9 illustrates two further possibilities for achieving that partial chamber (s) not filled with fire-resistant insulating compound 7 in the single hollow chamber H. 37 remain. In the upper part of FIG. 9, an adhesive tape 40 is glued into the profile component 1. The adhesive tape 40 closes off the filled part of the hollow chamber H against the unfilled part chamber 37. The sticking of the adhesive tape 40 is carried out before connecting the inner support shell 3 and the outer support shell 4 by the insulating webs 6 and before filling the profile component 1 with fire protection insulating 7. The adhesive tape 40 prevents filling of the sub-chamber 37 with fire protection insulating compound 7. After filling, the adhesive tape 40 remains in profile. The adhesive tape 40 is preferably glued with two protruding into the hollow chamber H, at a distance L opposite legs 41, 42 of the inner support shell 3 and bridges the distance L between the legs 41, 42. In particular, the adhesive tape 40 is respectively on side walls of the legs 41, 42, which are the filled with fire protection insulating 7 or initially to be filled part of the hollow chamber H facing. As a result, it can not dissolve under the pressure of the fire protection insulating compound 7 during filling, but is pressed even more firmly. An adhesive tape 40 could of course also be provided analogously to the outer support shell 4.

In the lower part of FIG. 9, a plastic molding 45 is pushed over two legs 43, 44 of the outer support shell 4 which are opposite one another at a distance L. The plastic molded body 45 closes off the filled part of the hollow chamber H against the unfilled partial chamber 37. The sliding of the plastic molded body 45 is made before or after the connection of the Innenentragschale 3 and the Außentragschale 4 by the Isolierstege 6, but in any case before filling the profile member 1 with fire protection insulating 7, whereby the distance L between the legs 43, 44 is bridged , The plastic molding 45 prevents filling of the sub-chamber 37 with fire protection insulating 7. After filling it remains in the profile. So that the plastic molded body 45 can not come loose under the pressure of the fire protection insulating compound 7 during filling, it includes the free ends of the legs 43, 44 in a form-fitting manner. For this purpose, a groove 406 is provided on each of the two longitudinal sides of the molded body 45. A plastic molding 45 could of course also be provided analogously to the inner support shell 3.

Unless filled sub-chambers 37 are present in the profile component 1, it is important that the fire protection insulating 7 is filled in any case so that the free leg ends 300, 301 400, 401 of the trays 3, 4 are fully absorbed in the fire protection insulating 7, like this is shown in Fig. 7, wherein the fire protection insulating 7 may expediently even further outward.

As has already been explained, the fireproof insulating compound 7 may preferably be completely or partially magnesium oxychloride cement or magnesium oxysulfate cement, which may optionally additionally contain magnesium sulfate or magnesium chloride in each case. As already mentioned, this feature and the above-mentioned compositions, which are derived from the stoichiometry of the reactions taking place during setting, are also of inventive significance.

To achieve the desired properties, it is necessary that the specified minimum amount of magnesium chloride in the ratios MgCl ₂ / Mg (OH) ₂ / H ₂ O of 1: (2.5 to 5): (8 to 12) and MgCl ₂ / MgSO ₄ of 1: (0.02 to 1.9) is not fallen below, as it may otherwise lead to a significant decrease in the refractoriness compared to the maximum achievable value according to the invention.

In the case of the production magnesium oxychloride magnesium oxysulfate cement, however, a part of the magnesium chloride used for the production of fire protection insulating compound 7 can be replaced by a metal chloride, such as calcium chloride, whose cation forms sparingly soluble sulfates. In this case, runs in the preparation of the insulating 7 a sedimentation reaction according to the equation

CaCl ₂ + MgSO ₄ -> MgCl ₂ + CaSO ₄ ↓

from where the magnesium chloride is formed in the manufacturing process itself from the other metal chloride. The precipitated sparingly soluble metal sulfate, gypsum in the illustrated case, in the cured insulating 7 on the one hand exclusively act in the sense of a filler, but on the other hand advantageously contribute to a further property improvement.

If the fire protection insulating mass 7 contains water glass, in particular soda water glass, this results in a greater strength and water resistance and in an increased fire resistance of the mass. In particular, it has proved to be advantageous if the sodium silicate has a composition with an average molar ratio Na ₂ O / SiO ₂ of 1: (1.5 to 4.0) and if the soda water glass in initial liquid form in the insulating 7th is introduced, wherein it should have a density of about 1.32 to 1.55 g / cm ³ . The amount of water glass introduced into the insulating compound 7 should be selected so that the magnesium oxychloride cement, magnesium oxysulfate cement or magnesium oxychloride magnesium oxysulfate cement has a composition with an average molar ratio of MgCl ₂ (or MgSO ₄ , in the case of a magnesium oxysulfate ₎ . Cement) to soda water glass of about 1: (0.02 to 0.35).

It has also been stated that it is advantageous if the insulating 7 contains silica. This can e.g. be mixed as an amorphous powder. The presence of silica in the insulating 7 causes similar improvements in properties as that of the water glass, but it still exacerbates its effect.

As is known, silica is a collective name for compounds which may contain silica and varying levels of water. Thus, a distinction is made between orthosilicic acid, various types of polysilicic acids and meta-silicic acids and finally the so-called phyllodilicic acid, wherein the silicas mentioned are distinguished by an increasing degree of condensation and decreasing water content in the stated order and in the final stage of the condensation taking place to form chain molecules, almost anhydrous silica is formed.

Silica can be produced by precipitation by means of metal salt and / or acid from water glass, where it is present at low degree of condensation initially as (liquid) hydrosol and at a corresponding temperature (starting at room temperature or slightly above) and at a corresponding pH (greater or less than about 3.1-3.3) an enclosure of colloidal disperse silica particles which can lead to gelation. In such a (solidified) gel, the silica is arranged in a network and / or honeycomb-like structure of high specific surface area and porosity in the water. The fact of the sol-gel reaction can be exploited according to the invention by the silica is generated by precipitation by means of metal salt and / or acid from initially contained in the insulating 7 water glass. On the one hand, this advantageously results in an increase in strength and fire resistance, and on the other hand, the amount of shrinkage of the thermosetting insulating compound 7 is also reduced.

The fire protection insulating compound 7 is - as stated - introduced in the flowable state in the hollow chamber H. For the production of a magnesium oxychloride cement, a fire-resistant insulating compound 7 is preferably used which is prepared from a mixture of magnesium oxide (reactive burnt magnesia) and concentrated, in particular saturated or supersaturated, aqueous magnesium chloride solution and can also be prepared with the addition of magnesium sulfate. In the latter case, the addition of a metal chloride, such as calcium chloride, take place, the cation of which forms sparingly soluble sulfates, such as calcium sulfate. To prepare a Magnesiumoxysulfat cement is used in an analogous manner an insulating 7 with concentrated, in particular saturated or supersaturated, saturated aqueous magnesium sulfate solution.

The insulating compound 7 can be further prepared with the addition of water glass, in particular of sodium water in liquid solution, preferably two partial mixtures, one of said starting materials for the magnesium oxychloride cement or magnesium oxysulfate cement and another from the water glass, optionally mixed with Magnesium sulfate or magnesium chloride, are stirred into a high-viscosity suspension.

The insulating 7 may also contain silica, which is preferably produced in the manufacturing process of the insulating 7 by precipitation by means of acid or salt of water glass. It can be used to set a suitable pH mineral and / or organic acids. In particular, an insulating compound 7 which is made of a mixture of 35 ± 25% by weight of MgCl ₂ , 13 ± 12% by weight of MgSO ₄ , 35 ± 25% by weight of MgO and 5.1 ± 5.0% by weight of water glass has proved suitable aqueous waterglass solution optionally, the acid used to react with the water glass may be included.

As already mentioned above, a fire resistance class of up to F120 can be achieved with the invention. The invention is not limited to the various embodiments shown, but also includes all the same effective embodiments that belong to the scope of claim 1. Thus, the person skilled in the art can e.g. additionally provide further advantageous measures, such as the addition of fillers or pigments for fire protection insulating 7, which in particular zinc oxide, titanium oxide and aluminum oxide have a particular suitability. Also embedding armor acting parts or fabrics, such as glass fibers or a fabric made of plastic, wire, glass fibers or the like, in the fire protection insulating 7 may be provided as the benefits of the invention even reinforcing measure.

Finally, a formulation of the following composition has proved particularly advantageous for producing a fire-resistant insulating compound 7 that can be used in the context of the invention:

13 ± 12% by weight of MgCl ₂ , 31 ± 30% by weight of MgSO ₄ , 31 ± 30% by weight of MgO and 5.1 ± 5.0% by weight of water glass, with a proportion of 1 to 30% by volume of hollow microspheres as filler.

The hollow microspheres are, in particular, functional lightweight fillers known per se, which may be produced in particular on a glass or ceramic basis, for example on a silicate basis with SiO ₂ , Al ₂ O ₃ as constituents, optionally boron-containing, having a density of 0 , 7 to 0.8 g / cm ^{3 may have} a bulk density of 380 to 420 g / l and their grain size may advantageously extend over a range of 10 .mu.m to 2000 .mu.m, preferably from 80 .mu.m to 1000 .mu.m. Particularly advantageous is the use of hollow microspheres with a temperature resistance of up to 1600 ° C and a compressive strength of about 23 MPa, for example of 28 MPa.

With regard to the composition of the fire protection insulating compound 7, the four following formulations are given by way of example, with which without exception at least the fire resistance class F 30 according to DIN 4102, in some cases a fire resistance class F 120, was achieved: Constituents of the mixture Example 1 (in%) Example 2 (in%) Example 3 (in%) Example 4 (in%) MgO 42.6 37.5 40.1 27.2 MgCl ₂ 20.4 18.8 1.6 10.0 _MgSO4 6.7 7.5 19.5 24.0 CaCl ₂ - - 5.5 - Al ₂ O ₃ - 3.4 - - TiO - 4.1 - - water glass 2.0 0.9 5.1 4.7 acid - - - 2,3 (HCl) H ₂ O 28.3 27.8 28.2 31.8 total 100.0 100.0 100.0 100.0 In a further (fifth) formulation of the fire protection insulating compound 7, the proportion of magnesium sulfate was replaced by magnesium chloride based on Example 1 and in a sixth formulation based on Example 3, the proportion of magnesium chloride by magnesium sulfate. Even without exception, at least the fire resistance class F 30 according to DIN 4102 was achieved.

Claims (54)

1. Fire-resistant profile component for producing windows, doors, wall elements, facades and the like, comprising two essentially U-shaped profile parts, in particular made of extruded aluminium, which form an inner supporting shell (3) and an outer supporting shell (4) and are connected at free leg ends (300, 301 and 400, 401, respectively of their legs (5) by means of thermally separating insulating bars (6) to form a composite profile (35) surrounding a hollow chamber (H), the composite profile (35) being formed between the inner supporting shell (3) and the outer supporting shell (4) as a single-chamber profile, in which the hollow chamber (H) is the single chamber, which is at least partially filled in a core region (4a) with a fireproof insulating material (7), and in the centre of which is arranged a thermal insulator (38, 38a), comprising a sandwich panel.
2. Fire-resistant profile component according to claim 1, characterised in that the thermal insulator (38, 38a) has walls consisting of fibreglass-woven mats dipped in a fireproof insulating material (7).
3. Fire-resistant profile component according to either claim 1 or claim 2, characterised in that the thermal insulator (38, 38a) consists at least in part of mineral wool.
4. Fire-resistant profile component according to either claim 1 or claim 2, characterised in that the fireproof insulating material (7) is strengthened with a reinforcement (39).
5. Fire-resistant profile component according to any one of claims 1 to 4, characterised in that the free leg ends (300, 301, 400, 401) of the inner supporting shell (3) and the outer supporting shell (4) have in each case an undercut groove (302, 402), into which the insulating bars (6) can be inserted with positive engagement, forming a statically load-bearing composite profile (35), and that in particular, the free leg ends (300, 301, 400, 401) are completely enclosed by the fireproof insulating material (7) within the hollow chamber (H).
6. Fire-resistant profile component according to any one of claims 1 to 5, characterised in that, when the inner supporting shell (3) or the outer supporting shell (4) begins to melt, a statically load-bearing profile can be formed by means of the remaining inner or outer supporting shell (3, 4) and the fireproof insulating material (7).
7. Fire-resistant profile component according to any one of claims 1 to 6, characterised in that the fireproof insulating material (7) is positively and/or frictionally connected to the composite profile (35).
8. Fire-resistant profile component according to any one of claims 1 to 7, characterised in that the fireproof insulating material (7) is mineral-based.
9. Fire-resistant profile component according to any one of claims 1 to 8, characterised in that the fireproof insulating material (7) contains crystalline-bound water, which can be released under the effect of heat.
10. Fire-resistant profile component according to any one of claims 1 to 9, characterised in that the fireproof insulating material (7) is reinforced with a metal wire mesh (8).
11. Fire-resistant profile component with a fireproof insulating material (7) with which a hollow chamber (H) can be filled, according to any one of claims 1 to 10, characterised in that the fireproof insulating material (7) contains magnesium oxychloride cement or magnesium oxysulphate cement, or consists entirely of magnesium oxychloride cement or magnesium oxysulphate cement.
12. Fire-resistant profile component according to claim 11, characterised in that the magnesium oxychloride cement has a composition with a molar ratio of MgCl₂/Mg(OH)₂/H₂O of 1 : (2.5 to 5) : (8 to 12), or the magnesium oxysulphate cement has a composition with a molar ratio of MgSO₄/Mg(OH)₂/H₂O of 1 : (2.5 to 3.5) : (6 to 10).
13. Fire-resistant profile component according to either claim 11 or claim 12, characterised in that the fireproof insulating material (7) contains magnesium chloride and magnesium sulphate, whereby a magnesium oxychloride/magnesium oxysulphate cement predominantly containing magnesium chloride, or a magnesium oxysulphate/magnesium oxychloride cement predominantly containing magnesium sulphate is formed.
14. Fire-resistant profile component according to claim 13, characterised in that the magnesium oxychloride/magnesium oxysulphate cement has a composition with a molar ratio of MgCl₂/MgSO₄ of 1 : (0.02 to 1.9), or the magnesium oxysulphate/magnesium oxychloride cement has a composition with a molar ratio MgSO₄/MgCl₂ of 1 : (0.02 to 1.9).
15. Fire-resistant profile component according to any one of claims 1 to 14, characterised in that the fireproof insulating material (7) contains water glass, in particular soda water glass.
16. Fire-resistant profile component according to claim 15, characterised in that the soda water glass has a composition with an average molar ratio of Na₂O/SiO₂ of 1 : (1.5 to 4.0).
17. Fire-resistant profile component according to claim 11 and either claim 15 or claim 16, characterised in that the magnesium oxychloride cement or magnesium oxysulphate cement or magnesium oxychloride/magnesium oxysulphate cement or magnesium oxysulphate/magnesium oxychloride cement has a composition with an average molar ratio of salt (MgCl₂ and/or MgSO₄) to soda water glass of 1 : (0.02 to 0.35).
18. Fire-resistant profile component according to any one of claims 1 to 17, characterised in that the fireproof insulating material (7) contains silica, in particular in gel form.
19. Fire-resistant profile component according to any one of claims 1 to 18, characterised in that at least one moulded part (36) prefabricated from the fireproof insulating material (7), with a cross section corresponding to the entire cross section or a part-cross section of the hollow chamber (H), is arranged in the hollow chamber (H).
20. Fire-resistant profile component according to any one of claims 1 to 19, characterised in that a curable fireproof insulating material (7) with which the hollow chamber (H) can be filled is provided.
21. Fire-resistant profile component according to any one of claims 1 to 20, characterised in that the hollow chamber (H) is completely filled with the fireproof insulating material (7).
22. Fire-resistant profile component according to one of claims 1 to 20, characterised in that the hollow chamber (H) comprises part-chambers (37) that are not filled with fireproof insulating material (7).
23. Fire-resistant profile component according to claim 22, characterised in that a part of the hollow chamber (H) that is filled with fireproof insulating material (7) is closed off from a part-chamber (37) that is not filled with fireproof insulating material (7) by an adhesive strip (40).
24. Fire-resistant profile component according to claim 23, characterised in that the adhesive strip (40) is adhesively attached to two legs (41, 42, 43, 44) of the inner and/or outer supporting shell (3, 4) which protrude into the hollow chamber (H) and lie opposite each other at a distance (L), and bridges the distance (L) between the legs (41, 42, 43, 44), the adhesive strip (40) in particular resting respectively against side walls of the legs (41, 42, 43, 44) which are facing the part of the hollow chamber (H) that is filled with the fireproof insulating material (7).
25. Fire-resistant profile component according to any one of claims 22 to 24, characterised in that a part of the hollow chamber (H) that is filled with fireproof insulating material (7) is closed off from a part-chamber (37) that is not filled with fireproof insulating material (7) by a moulded plastic body (45).
26. Fire-resistant profile component according to claim 25, characterised in that the moulded plastic body (45) is pushed onto two legs (41, 42, 43, 44) of the inner and/or outer supporting shell (3, 4) which protrude into the hollow chamber (H) and lie opposite each other at a distance (L), and bridges the distance (L) between the legs (41, 42, 43, 44), the moulded plastic part (45) in particular embracing the free ends of the legs (41, 42, 43, 44), which lie in a groove (406) of the moulded plastic part (45).
27. Fire-resistant profile component according to any one of claims 1 to 26, characterised in that the outer supporting shell (4) has on its outer side facing away from the hollow chamber (H) a groove (405) for receiving a seal (10) for glazing (2).
28. Fire-resistant profile component according to any one of claims 1 to 27, characterised in that the inner supporting shell (3) and/or the outer supporting shell (4) have grooves (303, 304, 403, 404) for receiving seals (14) which expand under the effect of heat.
29. Fire-resistant profile component according to any one of claims 1 to 28, characterised in that a glazing bar (11) can be attached to the outer side, facing away from the hollow chamber (H), of the inner supporting shell (3) and/or the outer supporting shell (4).
30. Fire-resistant profile component according to any one of claims 1 to 29, characterised in that the inner supporting shell (3) and/or the outer supporting shell (4) have on their outer side, facing away from the hollow chamber (H), a projecting stop leg (21) with a groove formed in it, into which a stop seal (22) can be inserted.
31. Window or door, comprising at least one frame (R) made up of sections of the fire-resistant profile component according to any one of claims 1 to 30 and glazing (2) of a fireproof glass held within the frame (R).
32. Window or door according to claim 31, characterised in that the glazing (2) is provided in its edge region with U-shaped metallic moulded parts (13), fitted onto the glazing (2), and the moulded parts (13) are screwed to the inner supporting shell (3) and the outer supporting shell (4) of the profile components in the region of the side legs (5).
33. Window or door according to either claim 31 or claim 32, characterised in that a seal (14) which expands under the effect of heat is arranged between the glazing (2) and the frame (R).
34. Window or door according to any one of claims 31 to 33, characterised in that a U-shaped metallic holding bar (33) with side legs (33a) and a bottom leg (33b) connecting said side legs is provided between the glazing (2) and the frame (R), engages around the edges of the glazing (2) and holds it, the side legs (33a) being made hollow and the bottom leg (33b) being screwed to the inner supporting shell (3) and the outer supporting shell (4) of the frame (R) in the region of the side legs (5).
35. Window or door according to any one of claims 31 to 34, characterised in that the frame (R) holding the glazing (2) is movably held as a sash or leaf frame (16) on a casing (15) made up of sections of the profile components while forming a peripheral rebate chamber (F), and a lock (17) is fastened on the side of the sash or leaf frame (16) that is facing the rebate chamber (F) and a striking plate (19), which can be brought into engagement with the lock, is fastened on the side of the casing (15) that is facing the rebate chamber (F), in each case with a backplate (18) interposed, and the backplates (18) are fastened by means of screws to the legs (5) of the outer supporting shell (4) and the inner supporting shell (3) of the casing (15) and sash or leaf frame (16), respectively.
36. Window or door according to claim 35, characterised in that an anchor part (20) is fitted on the casing (15), on the side facing away from the rebate chamber (F), and is fastened by means of screws to the side legs (5) of the inner supporting shell (3) and the outer supporting shell (4) of the casing (15).
37. Window or door according to either claim 35 or claim 36, characterised in that a guiding tube (24) for receiving a locking bar (25) is arranged in the fireproof insulating material (7) in a post (23) of the casing (15).
38. Window or door according to any one of claims 35 to 37, characterised in that a receiving groove (29a), into which a centre-bar seal (29) protruding into the rebate chamber (F) can be inserted, is formed on the side of the casing (15) that is facing the rebate chamber (F) in the region of the side leg (5) of the outer supporting shell (4), and a stop edge (29b) for the centre-bar seal (29) is formed in the region of the sash or leaf frame (16) lying opposite the receiving groove (29a) and facing the rebate chamber (F), on the side leg (5) of the outer supporting shell (4) of the same.
39. Method for producing a fire-resistant profile component (1) for the production of windows, doors, wall elements, facades and the like, in particular a profile component (1) according to any one of claims 1 to 38, wherein firstly two essentially U-shaped profile parts, in particular made of extruded aluminium, which form an inner supporting shell (3) and an outer supporting shell (4), are connected at their free leg ends (300, 301 and 400, 401, respectively) of the legs (5) of the U-profile by means of thermally separating insulating bars (6) to form a single chamber composite profile (35) surrounding a single hollow chamber (H), and after that the hollow chamber (H) is at least partially filled in a core region (4a) with a fireproof insulating material (7) and that, in the centre of the single-chamber composite profile (35) a thermal insulator (38, 38a) is arranged, comprising a sandwich panel.
40. Method according to claim 39, characterised in that the insulating bars (6) are rolled into grooves (302, 402) located at the free leg ends (300, 301 and 400, 401, respectively) of the inner and outer supporting shells (3, 4).
41. Method according to either claim 39 or claim 40, characterised in that a curing fireproof insulating material (7) with which the hollow chamber (H) can be filled is used as the fireproof insulating material (7).
42. Method according to any one of claims 39 to 41, characterised in that the fireproof insulating material (7) is produced from a mixture of magnesium oxide (calcined magnesia) and concentrated, in particular saturated or supersaturated, aqueous magnesium chloride and/or magnesium sulphate solution.
43. Method according to claim 42, characterised in that the fireproof insulating material (7) is prepared with the addition of water glass, in particular soda water glass, which is introduced into the fireproof insulating material (7) in liquid form, having in particular a density of from 1.32 to 1.55 g/cm³.
44. Method according to either claim 42 or claim 43, characterised in that the fireproof insulating material (7) is prepared with the addition of a metal chloride, such as calcium chloride, the cation of which forms scarcely soluble sulphates, such as calcium sulphate, in the fireproof insulating material (7).
45. Method according to any one of claims 42 to 44, characterised in that a fireproof insulating material (7) which contains silica is used.
46. Method according to claim 45, characterised in that the silica is produced by precipitation by means of metal salt and/or acid from water glass initially contained in the fireproof insulating material (7).
47. Method according to any one of claims 39 to 46, characterised in that the fireproof insulating material (7) is prepared from a mixture of 35 ± 25 per cent by weight of MgCl₂, 13 ± 12 per cent by weight of MgSO₄, 35 ± 25 per cent by weight of MgO and 5.1 ± 5.0 per cent by weight of an aqueous solution of soda water glass, with the addition of water, it being possible for this solution to contain a mineral and/or organic acid.
48. Method according to any one of claims 39 to 43, characterised in that the fireproof insulating material (7) is prepared from a mixture of 13 ± 12 per cent by weight of MgCl₂, 31 ± 30 per cent by weight of MgSO₄, 31 ± 30 per cent by weight of MgO and 5.1 ± 5.0 per cent by weight of water glass, with the addition of water, and contains a proportion of 1 to 30 percent by volume of micro hollow spheres as a filler.
49. Method according to any one of claims 41 to 48, characterised in that, to produce at least one part-chamber (37) that is not filled with fireproof insulating material (7), before connecting the inner supporting shell (3) and the outer supporting shell (4) and before filling the hollow chamber (H) with fireproof insulating material (7), the part-chamber (37) that is not to be filled is closed by means of an adhesive strip (40), the adhesive strip (40) remaining in the hollow chamber (H) after the fireproof insulating material (7) has cured.
50. Method according to claim 49, characterised in that the adhesive strip (40) is adhesively attached to two legs (41, 42, 43, 44) of the inner and/or outer supporting shell (3, 4) which protrude into the hollow chamber (H) and lie opposite each other at a distance (L).
51. Method according to any one of claims 41 to 50, characterised in that, to produce at least one part-chamber (37) that is not filled with fireproof insulating material (7), before filling the hollow chamber (H) with fireproof insulating material (7), the part-chamber (37) that is not to be filled is closed by means of a moulded plastic body (45), the moulded plastic body (45) remaining in the hollow chamber (H) after the fireproof insulating material (7) has cured.
52. Method according to claim 51, characterised in that the moulded plastic body (45) is pushed onto two legs (41, 42, 43, 44) of the inner and/or outer supporting shell (3, 4) which protrude into the hollow chamber (H) and lie opposite each other at a distance (L), the moulded plastic part (45) in particular embracing the free ends of the legs (41, 42, 43, 44) with positive engagement.
53. Method according to any one of claims 41 to 52, characterised in that, to produce at least one part-chamber (37) that is not filled with fireproof insulating material (7) in the hollow chamber (H), before filling the hollow chamber (H) with fireproof insulating material (7), at least one moulded part is placed in the hollow chamber (H), which part is pulled out of the profile component (1) again after the fireproof insulating material (7) has been used for filling and has cured.
54. Method according to any one of claims 41 to 52, in particular for producing frames (R) for windows or doors according to claims 31 to 38, characterised in that the composite profile (35) formed by the inner supporting shell (3), the outer supporting shell (4) and insulating bars (6) is cut to length in sections (R1, R2, R3, R4) and connected in the corner regions to form a frame (R), subsequently at least one bore (B), leading into the hollow chamber (H) surrounded by the composite profile (35), is made in the frame (R), then the curing fireproof insulating material (7) is introduced into the hollow chamber (H) via the bore (B) and subsequently the bore (B) is closed again.

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