JPS6063144A - Thin molding consisting of composite material bonded by plastic or pitch and manufacture thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a thin molded body of plastic or bitumen-bonded composite material and to a method for producing the same.

Prior art For example, as in the case of roof force/i- over a large area,
Totally or partially plastic or bituminous bonded materials, such as unsaturated polyester, polymer concrete, bituminous bonded materials, etc., for use where relatively large bending and/or tensile stresses occur. The thin-skinned compacts made of composite materials are usually profiled to increase the moment of resistance and the resulting stiffness.

However, all such building components have the disadvantage that they are not able to accept large loads, especially single loads, with sufficient safety, such as those that occur, for example, when a person walks on them.

For reasons of statics and/or safety hazards, the use of this component is therefore only possible in limited cases, or even more so than necessary and often uneconomical. It is assumed that the substructure is . In order to eliminate this drawback in practice, attempts have been made to improve the mechanical properties of the binding material, for example by embedding reinforcing substances such as textiles 9 fur, netting, short fibers, etc. This method itself is economically unsatisfactory in the case of thin-skinned building components that are exposed to relatively large loads, such as corrugated sheets (for example, with support spacings as large as 0.6 m), It is not possible to improve the bending and tensile strength sufficiently to be able to withstand with the necessary safety the single loads that occur on the surface.

Purpose of the Invention Surprisingly, when the molded body is used in a critical state, the surface of the molded body is reinforced at least in the area where the tensile stress is most intense. It was discovered that the failure load of the steel was unexpectedly significantly improved. This reinforcement is therefore usually carried out not by inserting reinforcing material into the molded body, but by applying external reinforcement to the already molded part.

DESCRIPTION OF THE INVENTION It is therefore an object of the present invention to provide a plastic or bitumen bonded reinforcing material, characterized in that a reinforcing material is tightly bonded from the outside at least in one or more areas where the maximum critical tensile stress is applied. Thin molded bodies made of composite materials, in particular architectural elements for sealing and/or lighting.

DETAILED DESCRIPTION OF THE CONFIGURATION AND EFFECTS OF THE INVENTION The present invention relates in particular to profiled bodies, such as corrugated sheets and other profiled building elements used for roofing, for example, where large bending and/or tensile stresses occur. This applies, for example, in cases where the individual loads increase, such as when walking, but it also makes it possible to increase the support distance within the framework of permissible repeated loads. The reinforcement according to the invention is also advantageous in the case of flat plates.

Materials bonded with glass or bit blue (hereinafter referred to as
6 support material") consists of an unreinforced bonding material (possibly with the addition of fillers).

This supporting material contains reinforcing fibers, preferably of inorganic and/or organic origin, which are distributed uniformly throughout the material or can also be inserted in the form of fabrics, fiber cords, etc. I can do it.

All natural, semi-synthetic and synthetic substances are conceivable as reinforcing materials. In addition to the tensile strength and the strain at failure, the E-modulus, in particular, is a criterion for the use of reinforcing materials. If it is necessary to increase the failure load, the E-modulus of the reinforcing material must be greater than the E-modulus of the supporting material. If, for example, only secondary failure safety is required in order to prevent the risk of accidents, the E-modulus of the reinforcing material may be smaller than the E-modulus of the supporting material. It is also possible to use a combination of reinforcing materials with different E-moduli. Possible reinforcing materials include the following: Fabrics, layered grains, nets, furs, filaments, spun yarns, fiber cords, assembled yarns, etc., as well as sheets, plates, foils, coatings, threads, lattices, etc. made of glass, plastics, nystomers, metals, ceramic materials, etc.

In the case of corrugated plates, the area under the trough of the waves is where the strongest force is applied. Reinforcement is therefore preferably carried out under each direction of the wave using a continuous or broken strip, the width of which depends on the cross-section of the reinforcing material and the tensile strength, depending on the desired degree of reinforcement. Determined by the strength as well as the nature of the supporting material.

This reinforcing strip can be provided on the side of one or more wave troughs and/or wave crests on the same side of the plate which are most tensilely stressed.

For certain applications, it is also possible to provide additional reinforcement in areas subject to pressure.

In the case of flat plates, especially large flat plates, the reinforcement can be provided evenly distributed over the entire surface, or alternatively, for example in the form of transverse and/or longitudinal strips, or in the form of predetermined It can also be mounted in the form of diagonal strips superimposed on each other at intervals.

Typically, this reinforcing material is bonded to the supporting material using a suitable very strong adhesive. Suitable adhesives include commercially available reactive resin based adhesives such as epoxy resins, unsaturated polyester resins, vinyl ester resins, polyurethanes, and the like.

Suitable plastics can optionally also be applied directly to the support, in the melt or in the form of a solution.

The reinforcing material may also be provided with a coating layer to protect the material from corrosion and the like. This covering layer can be adhesive at the same time and can be completely impregnated with the reinforcing material.

An example of a reinforced corrugated sheet is shown in the accompanying drawings.

A corrugated plate (1) made of polymer concrete is provided with a layer of adhesive (3) and a textile strip (4) woven from glass fibers on the surface (2) facing inward of the wave troughs. There is.

Example This method achieves the following improvements:

This example has dimensions based on SIA standards and is made of PMMA resin 6
This is a polymer concrete corrugated sheet made of 70% quartz sand, 19% quartz powder, and 5% silica sand. The lower part of each wave trough of this board was glued with epoxy adhesive (EmsChemle) 6Grillonite (2X136 tex) and 5x1 weft/cm (2X13 tex).
6 tax), tensile strength of approximately 86 kg 7 cm.
Five sub-width fiberglass fabrics are bonded together such that the materials bond together.

The reinforcing material in this example was installed on a corrugated sheet that had already been molded and solidified, using the following method.

The rolled glass fabric strip is unrolled using a feed mechanism and guided through a dispensing station where it is simultaneously forced to be impregnated with adhesive.

The reinforcing material thus pretreated is then installed at the beginning of the wave trough of the corrugated sheet below the impregnation station using a suitable capture device. Furthermore, this plate is moved in the direction of development of the reinforcing strip in synchronism with this strip.

By rotating together in close contact, the strip and the plate are joined material to material. Once the desired length is reached, a cutting mechanism cuts the near-endless reinforcing strips. Stack the boards treated in this way. In the case of room temperature, the resin is cured within about 24 hours in this state.

The invention is not limited to the embodiments described above.

Similar continuous or discontinuous methods of attaching the reinforcement and adhesive will give similar results, provided that a material-to-material bond is ensured between the reinforcement and the support plate. bring.

[Brief explanation of the drawing]

The accompanying drawing is a perspective view of essential parts showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Corrugated plate, 2... Surface of wave trough, 3... Adhesive layer, 4... Fabric strip. Engraving of drawings (no change in content) Procedural amendment (method) August 11, 1980 Commissioner of the Japan Patent Office Shiga Palm print 1, Indication of the case 1981 Patent application No. 79368 2, Name of invention Plastic or lithium blue A thin molded body made of a composite material η) bonded with
Agent 6, subject of amendment (11 drawings (21 Clearance 1, document 7) Contents of amendment (11 engravings (no change in content) (21 engravings of specification) 8, list of attached documents + 11 engraving drawings 1 copy (1 copy of 21 engraving statement)

Claims (1)

[Claims] 1. At least one or more areas where the maximum critical tensile stress is applied are bonded with a 7°2 stick or bitumen, characterized in that a reinforcing material is tightly bonded from the outside. A thin molded body made of composite material. 2. The molded body according to claim 1, wherein the molded body is a profile building element for sealing and/or lighting. 3. The molded article according to claim 1 or 2, wherein a reinforcing material is also attached to the portion where pressure is applied. 4. The molded article according to any one of claims 1 to 3, wherein the reinforcing material is attached in the form of strips. 5. The molded body is a corrugated plate, and one or more wave troughs and/or wave crests on the same side of the plate are continuously or discontinuously corrugated on the side to which the most tensile stress is applied. 5. Molded body according to any one of claims 1 to 4, on which reinforcing material in the form of longitudinally extending strips is attached. 6. Claims 1 to 6, in which the composite material consists of thin planar elements or three-dimensional elements pressed, cast, thinned or extruded from organic and/or inorganic or metal materials.
The molded article according to any one of Item 5. 7. Fabrics in which the reinforcing material is organic and/or inorganic. The molded article according to any one of claims 1 to 6, which is made of stockinette knitted fabric (9) fur, net (1) knitted fabric, endless filament, fiber, or fiber cord. 8. The reinforcing material is preferably a thin plate or plate in the form of strips. metal, plastic, in the form of foil, grid or wire;
Claims 1 to 6 in which the material is made of elastomer, paper, pressed or ceramic, optionally the foil is fibrillated and/or pre-stretched.
The molded article according to item 1. 9. Molded body according to any one of claims 1 to 6, wherein the reinforcing material is in the form of a coating, for example of plastics, optionally reinforced with fibers. 10. The molded article according to any one of claims 1 to 9, wherein the reinforcing material has a higher E modulus than the supporting material. 11. The molded article according to any one of claims 1 to 9, wherein the reinforcing material has a lower E modulus than the supporting material. 12. Claim 1, wherein the reinforcing material is a combination of a material with a high E modulus and a material with a low E modulus than the supporting material.
The molded article according to any one of Items 1 to 9. 13. The molded article according to any one of claims 1 to 12, wherein the reinforcing material is bonded to the molded article with an adhesive. 14. The reinforcing material is made of fiberglass fabric strips;
and claim 1, wherein the adhesive is an epoxy resin.
The molded article according to item 3. 15. The molded article according to claim 13 or 14, wherein the reinforcing material is provided with a protective layer, and where the protective layer is formed of the adhesive itself. 16. After the substantial forming process of the compact, reinforcing material is attached to selected areas of the compact, at least in one or more of the areas where the maximum critical tensile stress is applied. Materials are tightly bonded from the outside, and are made from composite materials bonded with plastic or plastic.
A method for producing thin molded objects. 17. A method according to claim 16 for producing profile building elements for sealing and/or daylighting. 1B. The method according to claim 16 or 17, wherein the reinforcing material is attached to the molded body before the molded body is completely cured. 19. The method according to claim 16 or 17, wherein the reinforcing material is attached to the molded body after the molded body has completely cured.