FR2379367A1 - Procede de moulage de pieces en matiere thermodurcissable - Google Patents

Procede de moulage de pieces en matiere thermodurcissable

Info

Publication number
FR2379367A1
FR2379367A1 FR7703148A FR7703148A FR2379367A1 FR 2379367 A1 FR2379367 A1 FR 2379367A1 FR 7703148 A FR7703148 A FR 7703148A FR 7703148 A FR7703148 A FR 7703148A FR 2379367 A1 FR2379367 A1 FR 2379367A1
Authority
FR
France
Prior art keywords
mould
heat transfer
cavity
thermosetting materials
live steam
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.)
Withdrawn
Application number
FR7703148A
Other languages
English (en)
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.)
SEIA SARL
Original Assignee
SEIA SARL
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 SEIA SARL filed Critical SEIA SARL
Priority to FR7703148A priority Critical patent/FR2379367A1/fr
Publication of FR2379367A1 publication Critical patent/FR2379367A1/fr
Withdrawn legal-status Critical Current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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • 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
    • B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3415—Heating or cooling
    • B29C44/3426—Heating by introducing steam in the mould

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Ce procédé pour le moulage de pièces en matière thermodurcissable est du type dans lequel on utilise un moule métallique en deux pièces, l'une femelle, l'autre mâle, qu'on remplit de la matière à mouler que l'on chauffe à une température suffisante pour obtenir la polymérisation désirée et dont on extrait ensuite la pièce moulée après ouverture du moule. On fait le vide dans l'enceinte du moule et on y injecte de la vapeur qui pénètre immédiatement dans les interstices entre les particules de matière et les porte à la température de vulcanisation. Ce procédé est beaucoup plus rapide que les procédés classiques : il supprime l'obligation de refroidir le moule par de l'eau avant son ouverture pour le démoulage et il permet une économie importante de vapeur.
FR7703148A 1977-02-04 1977-02-04 Procede de moulage de pieces en matiere thermodurcissable Withdrawn FR2379367A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7703148A FR2379367A1 (fr) 1977-02-04 1977-02-04 Procede de moulage de pieces en matiere thermodurcissable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7703148A FR2379367A1 (fr) 1977-02-04 1977-02-04 Procede de moulage de pieces en matiere thermodurcissable

Publications (1)

Publication Number Publication Date
FR2379367A1 true FR2379367A1 (fr) 1978-09-01

Family

ID=9186301

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7703148A Withdrawn FR2379367A1 (fr) 1977-02-04 1977-02-04 Procede de moulage de pieces en matiere thermodurcissable

Country Status (1)

Country Link
FR (1) FR2379367A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627946A (en) * 1983-11-07 1986-12-09 Morval-Durofoam Ltd. Method and molding apparatus for molding expanded polystyrene articles having smooth surfaces
US4781555A (en) * 1987-01-07 1988-11-01 Efp Corp. Apparatus for forming molded patterns

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086248A (en) * 1959-12-07 1963-04-23 Armstrong Cork Co Process for reducing aging period of cellular products formed with steam
FR1463182A (fr) * 1965-11-12 1966-06-03 Pechiney Saint Gobain Procédé de préparation de corps poreux, appareillage mis en oeuvre à cet effet et produits en résultant
US3452124A (en) * 1964-08-27 1969-06-24 Corning Glass Works Reduction of cooling cycles through rapid decompression of heated beads
FR2231505A1 (en) * 1973-05-29 1974-12-27 Waldmann Otto Expanded polystyrene moulding using steam heat - then evacuation during setting time to improve temp control and cycle time

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086248A (en) * 1959-12-07 1963-04-23 Armstrong Cork Co Process for reducing aging period of cellular products formed with steam
US3452124A (en) * 1964-08-27 1969-06-24 Corning Glass Works Reduction of cooling cycles through rapid decompression of heated beads
FR1463182A (fr) * 1965-11-12 1966-06-03 Pechiney Saint Gobain Procédé de préparation de corps poreux, appareillage mis en oeuvre à cet effet et produits en résultant
FR2231505A1 (en) * 1973-05-29 1974-12-27 Waldmann Otto Expanded polystyrene moulding using steam heat - then evacuation during setting time to improve temp control and cycle time

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627946A (en) * 1983-11-07 1986-12-09 Morval-Durofoam Ltd. Method and molding apparatus for molding expanded polystyrene articles having smooth surfaces
US4781555A (en) * 1987-01-07 1988-11-01 Efp Corp. Apparatus for forming molded patterns

Similar Documents

Publication Publication Date Title
DK593788A (da) Varmekanals-sproejtevaerktoej til fremstilling af engangsinjektionssproejter og lignende
SE7501432L (fr)
ATE55083T1 (de) Verfahren und vorrichtung zur thermischen regelung fuer heisskanal-spritzwerkzeuge.
JPS55109639A (en) Method of injection molding
GB2014080A (en) Cold channel moulds for thermosetting plastics materials
FR2379367A1 (fr) Procede de moulage de pieces en matiere thermodurcissable
ES8500129A1 (es) Metodo de controlar la temperatura del molde para controlar de manera uniforme las temperaturas de las cavidades de un molde
DE3480066D1 (en) An electric thermal unit surrounded by a double air circulating interspace, for controllably heating cylinders in extruders, injection presses, and drawing machines for plastics, rubbers and the like
FR2449518A1 (fr) Moule et procede nouveaux pour la fabrication d'objets moules en matiere plastique expansee
JPS5630590A (en) Production of floor heating panel
JPS57102327A (en) Heater for barrel of injection molding machine
JPS55109633A (en) Method of foam-shaping
FR2302844A1 (fr) Perfectionnement apporte aux moules pour materiaux expansibles
JPS57190747A (en) Production of refractory shell mold
JPS57151307A (en) Metal mold device
FR2369072A1 (fr) Procede et dispositif de moulage sous pression
JPS5722035A (en) Metal mold for compression forming
GB946882A (en) Improvements in or relating to heatable presses
GB840660A (en) Improvements in or relating to a heat-exchanger system
JPS55103357A (en) Mold and method for molding fabric having undercut by heat
JPS6445734A (en) Press molding apparatus for glass lens
Lou et al. A responsive three-dimensional thermal model for curing of composites.
JPS55121044A (en) Transfer molding equipment capable of continuous molding
JPS57175039A (en) Hot forming and hot press
ES305693A1 (es) Procedimiento para la fabricaciën de platos termicos

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse