FR2338124A1 - Twin tool system for moulding expanded thermoplastics - for improved thermal efficiency and quicker cycles - Google Patents

Twin tool system for moulding expanded thermoplastics - for improved thermal efficiency and quicker cycles

Info

Publication number
FR2338124A1
FR2338124A1 FR7601160A FR7601160A FR2338124A1 FR 2338124 A1 FR2338124 A1 FR 2338124A1 FR 7601160 A FR7601160 A FR 7601160A FR 7601160 A FR7601160 A FR 7601160A FR 2338124 A1 FR2338124 A1 FR 2338124A1
Authority
FR
France
Prior art keywords
moulding
mould
tool
expanded
quicker
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
FR7601160A
Other languages
French (fr)
Other versions
FR2338124B1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7601160A priority Critical patent/FR2338124A1/en
Priority to CH633176A priority patent/CH605091A5/xx
Priority to SE7605713A priority patent/SE411725B/en
Priority to DK223276A priority patent/DK223276A/en
Priority to NO761713A priority patent/NO761713L/no
Priority to GB21144/76A priority patent/GB1523506A/en
Priority to NL7605462A priority patent/NL7605462A/en
Priority to AU14169/76A priority patent/AU502217B2/en
Priority to DE2622903A priority patent/DE2622903C2/en
Priority to JP51120848A priority patent/JPS588335B2/en
Priority to NZ182480A priority patent/NZ182480A/en
Priority to FI763164A priority patent/FI763164A/fi
Priority to CA265,052A priority patent/CA1102066A/en
Priority to AT0822076A priority patent/AT366624B/en
Priority to ES453117A priority patent/ES453117A1/en
Publication of FR2338124A1 publication Critical patent/FR2338124A1/en
Priority to US05/895,452 priority patent/US4260571A/en
Priority to HK477/79A priority patent/HK47779A/en
Application granted granted Critical
Publication of FR2338124B1 publication Critical patent/FR2338124B1/fr
Priority to MY8/80A priority patent/MY8000008A/en
Priority to JP56165595A priority patent/JPS5795426A/en
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
    • 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

  • Molding Of Porous Articles (AREA)
  • 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

Mouldings of expanded plastics materials produced by (a) injecting a predetermined quantity of non-expanded pellets into a (steam-) heated mould to expand and partially melt and agglomerate the pellets, (b) extracting the soft preform from the hot mould to relax in a controlled atmos., (c) loading the preform into a cooler mould, and (d) extracting the chilled moulding for cooling to ambient temp. Suitable for producing shaped packaging or moulded thermal insulation from expanded polystyrene. Use of two tools avoids transfer and waste associated with changing the temp. of a single tool for the thermal cycle necessary to expand, fuse and chill a moulding of material which is a poor heat transfer medium and of low mass c.f. with the mass of the tool. Can also reduce cycle times. Tool designs are simplified for hot or cold duties independently.
FR7601160A 1975-05-21 1976-01-16 Twin tool system for moulding expanded thermoplastics - for improved thermal efficiency and quicker cycles Granted FR2338124A1 (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
FR7601160A FR2338124A1 (en) 1976-01-16 1976-01-16 Twin tool system for moulding expanded thermoplastics - for improved thermal efficiency and quicker cycles
CH633176A CH605091A5 (en) 1975-05-21 1976-05-20
SE7605713A SE411725B (en) 1975-05-21 1976-05-20 SET AND APPARATUS FOR SHAPING PRODUCTS OF EXPANDED PLASTIC MATERIAL
DK223276A DK223276A (en) 1975-05-21 1976-05-20 METHOD AND APPARATUS FOR MANUFACTURE OF EXPANDED PLASTIC ITEMS
NO761713A NO761713L (en) 1975-05-21 1976-05-20
GB21144/76A GB1523506A (en) 1975-05-21 1976-05-21 Method and apparatus for moulding expanded plastics materiial articles
NL7605462A NL7605462A (en) 1975-05-21 1976-05-21 PROCEDURE FOR FORMING EXPANDED PLASTIC MATERIAL AND DEVICE FOR PERFORMING THIS PROCEDURE.
AU14169/76A AU502217B2 (en) 1975-05-21 1976-05-21 A method of molding articles of expanded plastics material
DE2622903A DE2622903C2 (en) 1975-05-21 1976-05-21 Process for the production of molded articles from foam
JP51120848A JPS588335B2 (en) 1976-01-16 1976-10-09 Method and device for manufacturing foamed resin moldings
NZ182480A NZ182480A (en) 1976-01-16 1976-11-01 Moulding expanded plastics articles:hot and cold moulds
FI763164A FI763164A (en) 1976-01-16 1976-11-04
CA265,052A CA1102066A (en) 1976-01-16 1976-11-05 Method and apparatus for molding expanded plastic material articles
AT0822076A AT366624B (en) 1976-01-16 1976-11-05 METHOD FOR PRODUCING MOLDED BODIES FROM FOAM
ES453117A ES453117A1 (en) 1976-01-16 1976-11-08 Process for manufacturing molded resin foam
US05/895,452 US4260571A (en) 1975-05-21 1978-04-11 Method for molding expanded plastic material articles
HK477/79A HK47779A (en) 1975-05-21 1979-07-12 Method and apparatus for molding expanded plastics material articles
MY8/80A MY8000008A (en) 1975-05-21 1980-12-30 Method and apparatus for molding expanded plastics material articles
JP56165595A JPS5795426A (en) 1976-01-16 1981-10-16 Manufacture of foaming resin shaping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7601160A FR2338124A1 (en) 1976-01-16 1976-01-16 Twin tool system for moulding expanded thermoplastics - for improved thermal efficiency and quicker cycles

Publications (2)

Publication Number Publication Date
FR2338124A1 true FR2338124A1 (en) 1977-08-12
FR2338124B1 FR2338124B1 (en) 1979-08-10

Family

ID=9168043

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7601160A Granted FR2338124A1 (en) 1975-05-21 1976-01-16 Twin tool system for moulding expanded thermoplastics - for improved thermal efficiency and quicker cycles

Country Status (7)

Country Link
JP (2) JPS588335B2 (en)
AT (1) AT366624B (en)
CA (1) CA1102066A (en)
ES (1) ES453117A1 (en)
FI (1) FI763164A (en)
FR (1) FR2338124A1 (en)
NZ (1) NZ182480A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011157A1 (en) * 1978-11-02 1980-05-28 Firma E.A. Heitz Apparatus for making foam plastics mouldings
DE2903495C2 (en) * 1979-01-30 1985-02-21 Joachim Ing.(Grad.) 7712 Blumberg Teubert Process for the production of molded bodies from foamed plastic, in particular from foamed polystyrene

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5549231A (en) * 1978-10-03 1980-04-09 Badische Yuka Co Ltd Manufacturing method for foam resin formed product
JPS6056106B2 (en) * 1979-12-03 1985-12-09 積水化成品工業株式会社 Foam molding method
JPS6056107B2 (en) * 1979-12-04 1985-12-09 積水化成品工業株式会社 Foam molding method
JPS6056108B2 (en) * 1979-12-05 1985-12-09 積水化成品工業株式会社 Foam molding equipment
JPS5698149A (en) * 1980-01-07 1981-08-07 Sekisui Plastics Co Ltd Foam molding and apparatus
JPS5653047A (en) * 1980-04-04 1981-05-12 Badische Yuka Co Ltd Production of foamed resin molding
JPS58183226A (en) * 1982-04-20 1983-10-26 Kanegafuchi Chem Ind Co Ltd Method and apparatus for obtaining molding body having different density from each other
AT385717B (en) * 1984-10-24 1988-05-10 Hirsch Kurt Kunststoff STACKING DEVICE
GB2465159B (en) * 2008-11-05 2013-04-17 Aston Martin Lagonda Ltd Manufacture of a structural composites component
GB201820560D0 (en) 2018-12-17 2019-01-30 Aston Martin Lagonda Ltd Assemblies for engines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676033A (en) * 1968-04-30 1972-07-11 Robert B Buonaiuto Apparatus for making thermoplastic cellular products
JPS5112181B2 (en) * 1971-09-10 1976-04-16

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011157A1 (en) * 1978-11-02 1980-05-28 Firma E.A. Heitz Apparatus for making foam plastics mouldings
DE2903495C2 (en) * 1979-01-30 1985-02-21 Joachim Ing.(Grad.) 7712 Blumberg Teubert Process for the production of molded bodies from foamed plastic, in particular from foamed polystyrene

Also Published As

Publication number Publication date
FR2338124B1 (en) 1979-08-10
AT366624B (en) 1982-04-26
JPS6149102B2 (en) 1986-10-28
JPS5290578A (en) 1977-07-29
ES453117A1 (en) 1978-01-16
ATA822076A (en) 1981-09-15
FI763164A (en) 1977-07-17
CA1102066A (en) 1981-06-02
JPS5795426A (en) 1982-06-14
NZ182480A (en) 1979-10-25
JPS588335B2 (en) 1983-02-15

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Legal Events

Date Code Title Description
TP Transmission of property
CL Concession to grant licences
ST Notification of lapse