FR2231505A1 - Expanded polystyrene moulding using steam heat - then evacuation during setting time to improve temp control and cycle time - Google Patents

Expanded polystyrene moulding using steam heat - then evacuation during setting time to improve temp control and cycle time

Info

Publication number
FR2231505A1
FR2231505A1 FR7336234A FR7336234A FR2231505A1 FR 2231505 A1 FR2231505 A1 FR 2231505A1 FR 7336234 A FR7336234 A FR 7336234A FR 7336234 A FR7336234 A FR 7336234A FR 2231505 A1 FR2231505 A1 FR 2231505A1
Authority
FR
France
Prior art keywords
expanded polystyrene
steam heat
during setting
temp control
evacuation during
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.)
Granted
Application number
FR7336234A
Other languages
French (fr)
Other versions
FR2231505B1 (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.)
WALDMANN OTTO DT
Original Assignee
WALDMANN OTTO DT
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 WALDMANN OTTO DT filed Critical WALDMANN OTTO DT
Publication of FR2231505A1 publication Critical patent/FR2231505A1/en
Application granted granted Critical
Publication of FR2231505B1 publication Critical patent/FR2231505B1/fr
Granted 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
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
    • 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

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Method of making mouldings from pre-expanded polystyrene granulate comprises: evacuating the mould and externally heating, then during or after the introduction of the granulate, introducing a small quantity of steam, and evacuating the mould. Pref., granulate is metered into the mould at several points, using steam to blow it.
FR7336234A 1973-05-29 1973-10-10 Expanded polystyrene moulding using steam heat - then evacuation during setting time to improve temp control and cycle time Granted FR2231505A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2327268A DE2327268A1 (en) 1973-05-29 1973-05-29 METHOD AND DEVICE FOR MANUFACTURING SHAPED BODIES FROM EXPANDABLE POLYSTYRENE FOAM

Publications (2)

Publication Number Publication Date
FR2231505A1 true FR2231505A1 (en) 1974-12-27
FR2231505B1 FR2231505B1 (en) 1976-06-18

Family

ID=5882427

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7336234A Granted FR2231505A1 (en) 1973-05-29 1973-10-10 Expanded polystyrene moulding using steam heat - then evacuation during setting time to improve temp control and cycle time

Country Status (3)

Country Link
CH (1) CH556233A (en)
DE (1) DE2327268A1 (en)
FR (1) FR2231505A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379367A1 (en) * 1977-02-04 1978-09-01 Seia Sarl Heating thermosetting materials using live steam in the mould cavity - to reduce heat transfer cycles and eliminate mould tool cooling
EP0082913A2 (en) * 1981-12-29 1983-07-06 Sodemape Holding AG Method and apparatus for the manufacture of essentially dry moulded articles of expandable thermoplastics material, for example polystyrene
BE1004254A5 (en) * 1990-04-02 1992-10-20 Outboard Marine Corp Equipment for casting elements models lost foam.
EP1149676A1 (en) * 1999-10-12 2001-10-31 Namba Press Works Co., Ltd. Filled article

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3337608A1 (en) * 1983-03-31 1984-10-11 WIESER Maschinenbau GmbH, Altaussee Process for producing blocks of expandable polystyrene
DE102008016883A1 (en) * 2008-01-12 2009-07-16 Behl Asia Ltd. A method for producing a shaped body of foamed plastic and device for carrying out the method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1415881A (en) * 1963-12-05 1965-10-29 Koppers Co Inc Improvements in the manufacture of molded cellular plastic articles

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1415881A (en) * 1963-12-05 1965-10-29 Koppers Co Inc Improvements in the manufacture of molded cellular plastic articles

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379367A1 (en) * 1977-02-04 1978-09-01 Seia Sarl Heating thermosetting materials using live steam in the mould cavity - to reduce heat transfer cycles and eliminate mould tool cooling
EP0082913A2 (en) * 1981-12-29 1983-07-06 Sodemape Holding AG Method and apparatus for the manufacture of essentially dry moulded articles of expandable thermoplastics material, for example polystyrene
EP0082913A3 (en) * 1981-12-29 1984-10-03 Flewu Ag Method and apparatus for the manufacture of essentially dry moulded articles of expandable thermoplastics material, for example polystyrene
BE1004254A5 (en) * 1990-04-02 1992-10-20 Outboard Marine Corp Equipment for casting elements models lost foam.
EP1149676A1 (en) * 1999-10-12 2001-10-31 Namba Press Works Co., Ltd. Filled article
EP1149676A4 (en) * 1999-10-12 2004-08-25 Namba Press Kogyo Kk Filled article
US6946043B1 (en) 1999-10-12 2005-09-20 Namba Press Works Co., Ltd. Filled article

Also Published As

Publication number Publication date
FR2231505B1 (en) 1976-06-18
DE2327268A1 (en) 1975-01-02
CH556233A (en) 1974-11-29

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Legal Events

Date Code Title Description
ST Notification of lapse