DE1034844B - Destructible molds for the production of molded bodies from meltable elastomers - Google Patents

Destructible molds for the production of molded bodies from meltable elastomers

Info

Publication number
DE1034844B
DE1034844B DEC7768A DEC0007768A DE1034844B DE 1034844 B DE1034844 B DE 1034844B DE C7768 A DEC7768 A DE C7768A DE C0007768 A DEC0007768 A DE C0007768A DE 1034844 B DE1034844 B DE 1034844B
Authority
DE
Germany
Prior art keywords
molds
production
destructible
elastomers
molded bodies
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
Application number
DEC7768A
Other languages
German (de)
Inventor
Dipl-Ing Richard Beckadolph
Walter Niclas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental AG
Original Assignee
Continental Gummi Werke AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Continental Gummi Werke AG filed Critical Continental Gummi Werke AG
Priority to DEC7768A priority Critical patent/DE1034844B/en
Publication of DE1034844B publication Critical patent/DE1034844B/en
Pending legal-status Critical Current

Links

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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/40—Plastics, e.g. foam or rubber
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/52—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles soluble or fusible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2829/00—Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals or derivatives thereof, as mould material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

Zerstörbare Formen zur Herstellung von Formkörpern aus schmelzbaren Elastomeren Die Erfindung bezieht sich auf zerstörbare Formen, insbesondere Außenformen, zur Herstellung von Formkörpern aus schmelzbaren Elastomeren, wie Polyurethanen. Destructible molds for the production of moldings from fusible Elastomers The invention relates to destructible forms, in particular external forms, for the production of moldings from meltable elastomers such as polyurethanes.

Bei der Herstellung von Formkörpern aus gießfähigen elastomeren Stoffen geht man im allgemeinen so vor, daß die Masse in eine Metallform gegossen und die Form nach dem Erstarren des Gußkörpers auseinandergenommen wird. In the production of moldings from castable elastomeric materials one proceeds in general so that the mass is poured into a metal mold and the Form is disassembled after solidification of the cast body.

Um schwierig geformte Gußkörper anzufertigen, war jedoch die Herstellung von metallischen Formen unter verhältnismäßig großem Aufwand an Zeit und Material erforderlich. Es war daher erwünscht, die Anfertigung der Formen möglichst zu vereinfachen und zu beschleunigen, so daß auch die Herstellung von Formlingen, besonders von solchen mit schwieriger Gestalt, ohne Verzögerung vor sich gehen konnte. Gleichzeitig mußte es auch möglich sein, die Formen leicht von den Formlingen zu entfernen. To make difficultly shaped castings, however, was manufacture of metallic forms with a relatively large expenditure of time and material necessary. It was therefore desirable to simplify the production of the molds as much as possible and to accelerate, so that the production of moldings, especially of those of difficult shape could go on without delay. Simultaneously it also had to be possible to easily remove the molds from the moldings.

Nach der Erfindung wird dies dadurch erreicht, daß Formen verwendet werden, welche aus Polymerisaten ungesättigter Alkohole bestehen. Mit Hilfe dieser Formen ist es leicht möglich, eine große Anzahl von Formkörpern schwieriger Gestalt innerhalb ganz kurzer Frist anzufertigen. According to the invention this is achieved by using molds which consist of polymers of unsaturated alcohols. With the help of this It is easily possible to mold a large number of moldings of difficult shapes to be made within a very short period of time.

Die erfindungsgemäßen Formen können durch Auflösen in einem Lösungsmittel zerstört werden. Dabei ist aber zu beachten, daß Lösungsmittel verwendet werden, welche ausschließlich die Formen, aber nicht die gegossenen Körper angreifen. The forms of the invention can be prepared by dissolving in a solvent be destroyed. It should be noted, however, that solvents are used which only attack the forms, but not the cast bodies.

Es ist auch möglich, daß die Formen aus mehreren getrennt gegossenen Einzelteilen bestehen, die zum Einbringen der Gießmasse zusammengesetzt werden. It is also possible that the molds consist of several separately cast There are individual parts that are assembled for introducing the casting compound.

Nach Erstarren der Gießmasse können jeweils nur ein oder mehrere bestimmte Teile z. B. chemisch zerstört werden, um den Gußkörper aus dem Formnest herausnehmen zu können.After the casting compound has solidified, only one or more specific Parts z. B. be chemically destroyed to remove the cast body from the mold cavity to be able to.

Ein besonderer Vorteil des Verfahrens liegt darin, daß die Formen aus verhältnismäßig billigem Material bestehen, so daß durch die Zerstörung dieser Formen keine großen Unkosten entstehen. Außerdem ist es möglich, daß die durch Zerstörung der Formen oder ihrer Teile erhaltenen Stoffe zur erneuten Anfertigung von Formen dienen. A particular advantage of the process is that the forms consist of relatively cheap material, so that by destroying this Forms no great expense. It is also possible that by destruction the materials obtained from the molds or their parts for making new molds to serve.

Das Verfahren läßt sich mit Vorteil anwenden bei der schnellen und stoßweisen Herstellung einer großen Anzahl von Gegenständen aus gießfähigen elastomeren Stoffen, was für eine schnelle Erledigung größerer Aufträge im Betriebe von großem Interesse ist. The method can be used with advantage in the fast and intermittently manufacturing a large number of articles from castable elastomers Stoffen, what a quick completion of larger jobs in a large company Interest is.

Nach der Erfindung wird beispielsweise auch eine rasche Anpassung an technische Verbesserungen oder modische Neuerungen bei der Herstellung von elastomeren Gußkörpern möglich.According to the invention, for example, rapid adaptation is also possible of technical improvements or fashion innovations in the manufacture of elastomers Cast bodies possible.

PÄTENTA NSPRUGH: Zerstörbare Formen, insbesolldere Außenf ormen, zur Herstellung von Formkörpern aus schmelzbaren Elastomeren, wie Polyurethanen, dadurch gekennzeichnet, daß die Formen aus Polymerisaten ungesättigter Alkohole bestehen. PÄTENTA NSPRUGH: Destructible forms, especially external forms, for the production of moldings from meltable elastomers, such as polyurethanes, characterized in that the forms from polymers of unsaturated alcohols exist.

Claims (1)

In Betraoht gezogene Druckschriften: Deutsche Patentschriften Nr. 660 592, 901 240; USA.-Patentschriften Nr. 2 217 734, 2 280 074, 2 345 977. Printed publications taken into consideration: German Patent Specifications No. 660 592, 901 240; U.S. Patent Nos. 2,217,734, 2,280,074, 2,345,977.
DEC7768A 1953-06-19 1953-06-19 Destructible molds for the production of molded bodies from meltable elastomers Pending DE1034844B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC7768A DE1034844B (en) 1953-06-19 1953-06-19 Destructible molds for the production of molded bodies from meltable elastomers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC7768A DE1034844B (en) 1953-06-19 1953-06-19 Destructible molds for the production of molded bodies from meltable elastomers

Publications (1)

Publication Number Publication Date
DE1034844B true DE1034844B (en) 1958-07-24

Family

ID=7014197

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC7768A Pending DE1034844B (en) 1953-06-19 1953-06-19 Destructible molds for the production of molded bodies from meltable elastomers

Country Status (1)

Country Link
DE (1) DE1034844B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203448B (en) * 1962-09-29 1965-10-21 Phoenix Gummiwerke Ag Mold for the production of molded articles from polyester urethane
FR2126126A1 (en) * 1971-02-26 1972-10-06 Bonnet Ets
EP0625386A1 (en) * 1993-04-13 1994-11-23 Juan De Antonio Gonalons An investment casting process where the lost pattern is formed in a lost mold
DE102021124064A1 (en) 2021-09-17 2023-03-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Process for manufacturing a fiber-reinforced component

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE660592C (en) * 1935-01-04 1938-05-30 Int Latex Processes Ltd Process for making molded rubber articles
US2217734A (en) * 1936-01-21 1940-10-15 Dreyfus Camille Method of making shaped articles containing organic derivatives of cellulose
US2280074A (en) * 1941-02-17 1942-04-21 Toyad Corp Manufacture of hollow articles
US2345977A (en) * 1942-06-24 1944-04-04 Libbey Owens Ford Glass Co Method of molding hollow bodies
DE901240C (en) * 1951-02-17 1954-01-07 Albert Ag Chem Werke Pressing, drawing and casting tools for processing unfilled or filled organic plastics and malleable natural materials

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE660592C (en) * 1935-01-04 1938-05-30 Int Latex Processes Ltd Process for making molded rubber articles
US2217734A (en) * 1936-01-21 1940-10-15 Dreyfus Camille Method of making shaped articles containing organic derivatives of cellulose
US2280074A (en) * 1941-02-17 1942-04-21 Toyad Corp Manufacture of hollow articles
US2345977A (en) * 1942-06-24 1944-04-04 Libbey Owens Ford Glass Co Method of molding hollow bodies
DE901240C (en) * 1951-02-17 1954-01-07 Albert Ag Chem Werke Pressing, drawing and casting tools for processing unfilled or filled organic plastics and malleable natural materials

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203448B (en) * 1962-09-29 1965-10-21 Phoenix Gummiwerke Ag Mold for the production of molded articles from polyester urethane
FR2126126A1 (en) * 1971-02-26 1972-10-06 Bonnet Ets
EP0625386A1 (en) * 1993-04-13 1994-11-23 Juan De Antonio Gonalons An investment casting process where the lost pattern is formed in a lost mold
DE102021124064A1 (en) 2021-09-17 2023-03-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Process for manufacturing a fiber-reinforced component

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