ES453117A1 - Process for manufacturing molded resin foam - Google Patents

Process for manufacturing molded resin foam

Info

Publication number
ES453117A1
ES453117A1 ES453117A ES453117A ES453117A1 ES 453117 A1 ES453117 A1 ES 453117A1 ES 453117 A ES453117 A ES 453117A ES 453117 A ES453117 A ES 453117A ES 453117 A1 ES453117 A1 ES 453117A1
Authority
ES
Spain
Prior art keywords
mould
tool
expanded
expand
extracting
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.)
Expired
Application number
ES453117A
Other languages
Spanish (es)
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.)
Selene Trust
Original Assignee
Selene Trust
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 Selene Trust filed Critical Selene Trust
Publication of ES453117A1 publication Critical patent/ES453117A1/en
Expired 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.
ES453117A 1976-01-16 1976-11-08 Process for manufacturing molded resin foam Expired ES453117A1 (en)

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 (1)

Publication Number Publication Date
ES453117A1 true ES453117A1 (en) 1978-01-16

Family

ID=9168043

Family Applications (1)

Application Number Title Priority Date Filing Date
ES453117A Expired ES453117A1 (en) 1976-01-16 1976-11-08 Process for manufacturing molded resin foam

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)

Families Citing this family (12)

* 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
DE2847557C2 (en) * 1978-11-02 1987-08-20 Fa. E.A. Heitz, 6718 Grünstadt Device for the production of molded parts from foam plastic
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
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

Also Published As

Publication number Publication date
AT366624B (en) 1982-04-26
JPS588335B2 (en) 1983-02-15
ATA822076A (en) 1981-09-15
JPS5795426A (en) 1982-06-14
JPS5290578A (en) 1977-07-29
FR2338124B1 (en) 1979-08-10
JPS6149102B2 (en) 1986-10-28
FR2338124A1 (en) 1977-08-12
NZ182480A (en) 1979-10-25
FI763164A (en) 1977-07-17
CA1102066A (en) 1981-06-02

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