JPS5569430A - Production of foaming polystyrene mold - Google Patents

Production of foaming polystyrene mold

Info

Publication number
JPS5569430A
JPS5569430A JP14310478A JP14310478A JPS5569430A JP S5569430 A JPS5569430 A JP S5569430A JP 14310478 A JP14310478 A JP 14310478A JP 14310478 A JP14310478 A JP 14310478A JP S5569430 A JPS5569430 A JP S5569430A
Authority
JP
Japan
Prior art keywords
molding
heated
foaming
molds
foaming polystyrene
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
JP14310478A
Other languages
Japanese (ja)
Inventor
Tomio Okubo
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.)
NIPPON RADIATOR CO Ltd
Nikko Kogyo KK
Marelli Corp
Original Assignee
NIPPON RADIATOR CO Ltd
Nihon Radiator Co Ltd
Nikko Kogyo KK
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 NIPPON RADIATOR CO Ltd, Nihon Radiator Co Ltd, Nikko Kogyo KK filed Critical NIPPON RADIATOR CO Ltd
Priority to JP14310478A priority Critical patent/JPS5569430A/en
Publication of JPS5569430A publication Critical patent/JPS5569430A/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
    • 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)

Abstract

PURPOSE:To obtain a molding thin and high in the finish accuracy by directly heating foaming polystyrene particles once foamed in a low expansion ratio in the mold without use of heated steam. CONSTITUTION:Foaming polystyrene particles which have been foamed primarily in a low expansion ratio (e.g. up to about 20 times) fill between male and female molds 1 and 2 tightly closed beforehand on the carrier air from a filling port 7 while air is exhausted through an exhaust slit 9. Then, the molds 1 and 2 are heated without use of heated syteam to effect heating, foaming and molding of the polystyrene filled through the molds 1 and 2. Thus, a foaming polystyrene molding under 5mm thick can be produced. Being thin, this can be sufficiently heated by direct heating with the mold to yield a molding with a high accuracy having a proper intra-particle density.
JP14310478A 1978-11-20 1978-11-20 Production of foaming polystyrene mold Pending JPS5569430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14310478A JPS5569430A (en) 1978-11-20 1978-11-20 Production of foaming polystyrene mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14310478A JPS5569430A (en) 1978-11-20 1978-11-20 Production of foaming polystyrene mold

Publications (1)

Publication Number Publication Date
JPS5569430A true JPS5569430A (en) 1980-05-26

Family

ID=15330992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14310478A Pending JPS5569430A (en) 1978-11-20 1978-11-20 Production of foaming polystyrene mold

Country Status (1)

Country Link
JP (1) JPS5569430A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61122829U (en) * 1985-01-22 1986-08-02

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61122829U (en) * 1985-01-22 1986-08-02

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