DE1252223B - - Google Patents
Info
- Publication number
- DE1252223B DE1252223B DENDAT1252223D DE1252223DA DE1252223B DE 1252223 B DE1252223 B DE 1252223B DE NDAT1252223 D DENDAT1252223 D DE NDAT1252223D DE 1252223D A DE1252223D A DE 1252223DA DE 1252223 B DE1252223 B DE 1252223B
- Authority
- DE
- Germany
- Prior art keywords
- dowels
- dowel
- pressed
- sleepers
- manufacture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229920000728 polyester Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 241001669679 Eleotris Species 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 4
- 239000000975 dye Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 235000015244 frankfurter Nutrition 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
AUSLEGESCHRIFT Deutsche Kl.: 19 a - 9/18 EXPLORATION PAPER German class: 19 a - 9/18
Nummer: 1 252 223Number: 1 252 223
Aktenzeichen: K 51613 V/19 aFile number: K 51613 V / 19 a
1 252 223 Anmeldetag: 12.Dezember 19631 252 223 filing date: December 12, 1963
Auslegetag: 19. Oktober 1967Opened on: October 19, 1967
Die Erfindung betrifft ein Verfahren zum Herstellen isolierender Kunststoffdübel, die in Betonschwellen bei deren Herstellung mit einbetoniert werden.The invention relates to a method for producing insulating plastic dowels which are in concrete sleepers are concreted in during their production.
Der Erfindung liegt die Aufgabe zugrunde, ein solches Verfahren zu schaffen, bei dem die Zeit für die Herstellung der Dübel abgekürzt und trotzdem eine hohe Qualität der Dübel erreicht wird. Diese Aufgabe wird dadurch gelöst, daß für die Dübel eine Formmasse verwendet wird, die einen ungesättigten Polyester, alkaliarmes Glasfasermaterial in einer Menge von höchstens 45%, Füllstoffe oder Farbstoffe vorwiegend organischer Herkunft sowie Katalysatoren enthält, und daß die in Formen gepreßten Dübel erst während des nach dem Betonieren erfolgenden Bedampf ens der Schwellen vollständig ausgehärtet werden.The invention is based on the object to provide such a method in which the time for Production of the dowels shortened and still a high quality of the dowels is achieved. This task is achieved in that a molding compound is used for the dowel, which is an unsaturated Polyester, low-alkali glass fiber material in an amount not exceeding 45%, fillers or dyes predominantly of organic origin and contains catalysts, and that those pressed into molds The dowel is only fully cured during the steaming of the sleepers that takes place after concreting will.
Durch die Bedampfung der Betonschwellen werden die so zusammengesetzten Dübel nochmals einer entscheidenden Temperung bei etwa 80° C unterzogen, was die Endfestigkeit der Dübel erst bewirkt. Es ist daher nicht erforderlich, die Dübel vor dem Einbetonieren nachzuhärten, wodurch die Herstellung erheblich beschleunigt wird. Durch die Art der Zusammensetzung läßt sich außerdem die Endfestigkeit der Dübel in weiten Grenzen ändern, z. B. durch die Höhe des Glasfaseranteils.By steaming the concrete sleepers, the dowels assembled in this way become one more subjected to decisive tempering at about 80 ° C, which only causes the final strength of the dowel. It is therefore not necessary to post-cure the dowels before setting them in concrete, which reduces the manufacturing process is accelerated considerably. The final strength can also be determined by the type of composition change the dowel within wide limits, e.g. B. by the amount of fiberglass.
Für das Eindrehen der Schwellenschrauben brauchen nur geringe Kräfte aufgewendet zu werden, wenn das Aufnahmegewinde mit geringem Untermaß eingepreßt wird. Die Formmasse in der angegebenen Rezeptur läßt eine gewisse Verformung im elastischen Bereich zu, was sich durch die Wahl des ungesättigten Polyesters in der Niederdruckharzkombination ergibt.Only small forces need to be used to screw in the sleeper bolts, if the receiving thread is pressed in with a slight undersize. The molding compound in the specified The recipe allows for a certain deformation in the elastic range, which is reflected in the choice of the unsaturated Polyester in the low pressure resin combination results.
Weiterhin erlaubt der nach diesem Verfahren und mit der entsprechenden Zusammensetzung der Formmasse gefertigte Dübel eine Herabsetzung der Wandstärke auf 3 bis 6 mm, wodurch neben einer erheblichen Materialersparnis auch eine weitere Verkürzung der Fertigungszeit möglich wird.Furthermore, it allows this method and with the appropriate composition of the molding compound Manufactured dowels reduce the wall thickness to 3 to 6 mm, which in addition to a considerable Material savings also make a further shortening of the production time possible.
Nach dem vorgeschlagenen Verfahren läßt sich eine unterschiedliche Festigkeit in Längsrichtung der Dübel in einfacher Weise dadurch erzielen, daß der Gehalt an Glasfasermaterial und/oder die Polyesterqualität über die Dübellänge verändert wird. So ist z. B. vorteilhaft, die Form zuerst mit einem Teil Masse höheren Glasfasergehaltes und sodann mit einem Teil niedrigeren Glasfasergehaltes zu beschicken. According to the proposed method, a different strength in the longitudinal direction of the Achieve dowels in a simple manner that the content of fiberglass material and / or the polyester quality is changed over the dowel length. So is z. B. advantageous, the form first with a part Mass of higher glass fiber content and then to be charged with a part of lower glass fiber content.
Auf die vorgeschlagene Weise hergestellte und mit der Betonschwelle zusammen bei deren Bedampfung ausgehärtete Dübel erreichen Eigenschaften, die weit-Manufactured in the manner proposed and together with the concrete sleeper when it is steamed hardened dowels achieve properties that are far
709 678/48 10.67 © Bur Verfahren zum Herstellen isolierender
Kunststoffdübel, die in Betonschwellen
einbetoniert werden 709 678/48 10.67 © Bur Process for producing insulating
Plastic dowels that are in concrete sleepers
be set in concrete
Anmelder:
Paul Kirchgeorg,
Sprendlingen bei Frankfurt/M.,
Frankfurter Str. 141Applicant:
Paul Kirchgeorg,
Sprendlingen near Frankfurt / M.,
Frankfurter Str. 141
gehend den Erfordernissen der Isolierung der Gleise für Sicherungsstromkreise gerecht werden.going to meet the requirements of the track insulation for fuse circuits.
Die Herstellung der Dübel aus der Niederdruckharzkombination auf Basis ungesättigter Polyester und vorwiegend anorganischer Füllstoffe und Farbstoffe läßt weiterhin eine Unterscheidung der verschiedenen Baugrößen durch unterschiedliche Farben zu.The production of the dowels from the low-pressure resin combination based on unsaturated polyester and predominantly inorganic fillers and dyes still allow a distinction between the various Sizes due to different colors.
Claims (4)
Publications (1)
Publication Number | Publication Date |
---|---|
DE1252223B true DE1252223B (en) | 1967-10-19 |
Family
ID=605283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT1252223D Pending DE1252223B (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1252223B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3923565C1 (en) * | 1989-07-17 | 1990-12-06 | Udo 6993 Creglingen De Wirthwein | Hollow dowel for railway sleeper - has pattern of outside projections gripping and bedding into wood |
-
0
- DE DENDAT1252223D patent/DE1252223B/de active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3923565C1 (en) * | 1989-07-17 | 1990-12-06 | Udo 6993 Creglingen De Wirthwein | Hollow dowel for railway sleeper - has pattern of outside projections gripping and bedding into wood |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2928582C2 (en) | Reflector for motor vehicle headlights and method for its manufacture | |
DE1115923B (en) | Process for producing molded articles from a polyester resin composition | |
DE2043371A1 (en) | Multilayer plastic containers | |
DE1252223B (en) | ||
DE2834924A1 (en) | PROCESS FOR MANUFACTURING THICK, REINFORCED PLASTIC OBJECTS | |
DE1936667C3 (en) | Reinforced concrete pipe and process for its manufacture | |
DE2657051A1 (en) | Flexible plastics HV insulator for overhead lines - has core embedded in plastics layer with plastics screen to resist pollution and moisture | |
DE1815053B2 (en) | Process for the production of lightweight concrete | |
DE3341437T1 (en) | Strap for textile fiber drafting system | |
DE432207C (en) | Process for cementing together porcelain parts, particularly in the case of insulators | |
DE2640390A1 (en) | Hollow profiles of glass fibre-reinforced Portland cement compsn., mfr - prepd. by coating rigid plastic web with uncured compsn. then folding into shape (NL170377) | |
DE955029C (en) | Boat skin | |
DE571506C (en) | Process for the production of insulating bodies | |
AT210498B (en) | Process for the production of groove insulators from synthetic resin | |
DE4422473C2 (en) | Leaf spring with synthetic fiber threads embedded in synthetic resin | |
AT259859B (en) | Process for pressing objects made of fiber-reinforced synthetic resin, which are provided with a cover layer of hardenable synthetic resin | |
DE863896C (en) | Process for the production of synthetic resin moldings | |
DE580331C (en) | Rifle stock and butt | |
CH571626A5 (en) | Building element of synthetic resin-mortar mixture - with outer protective layer consisting of bonded, pigmented synthetic resin | |
AT38582B (en) | Process for the production of panels faced on both sides for building purposes. | |
DE1479773C (en) | Press for drawing ceramic bodies in a plastic state | |
DE542392C (en) | Process for the production of hollow doll heads and doll parts from papermachine paste by the casting process | |
DE689082C (en) | Colored brick | |
DE925859C (en) | Process for the production of a multilayer fibrous press board | |
DE893403C (en) | Process for the production of dimensionally stable, asymmetrical device components from synthetic resin molding compounds |