JPS57185124A - Method of molding synthetic resin foamed body with skin - Google Patents

Method of molding synthetic resin foamed body with skin

Info

Publication number
JPS57185124A
JPS57185124A JP56069336A JP6933681A JPS57185124A JP S57185124 A JPS57185124 A JP S57185124A JP 56069336 A JP56069336 A JP 56069336A JP 6933681 A JP6933681 A JP 6933681A JP S57185124 A JPS57185124 A JP S57185124A
Authority
JP
Japan
Prior art keywords
mold
resin particles
cavity
skin
pressurized 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.)
Pending
Application number
JP56069336A
Other languages
Japanese (ja)
Inventor
Tatsuo Hayashi
Ryoichi Ito
Yoshihiro Tomono
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.)
OSAKA FIBRE INDUSTRY
Daisen Industry Co Ltd
Mitsubishi Petrochemical Co Ltd
Original Assignee
OSAKA FIBRE INDUSTRY
Daisen Industry Co Ltd
Mitsubishi Petrochemical Co Ltd
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 OSAKA FIBRE INDUSTRY, Daisen Industry Co Ltd, Mitsubishi Petrochemical Co Ltd filed Critical OSAKA FIBRE INDUSTRY
Priority to JP56069336A priority Critical patent/JPS57185124A/en
Publication of JPS57185124A publication Critical patent/JPS57185124A/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

  • Laminated Bodies (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

PURPOSE:To obtain the titled foamed body whose surface thickness is uniform and whose skin is firmly bonded, by spraying charged thermoplastic resin particles onto a heated cavity surface, filling the cavity with foamable resin particles, and molding them under heating. CONSTITUTION:The mold 1 comprising a male mold A and a female mold B is arranged on the positive charge side, highly pressurized steam is introduced into the second chamber 3b of this mold 1 to preheat the cavity surface 2a, and then the negatively charged and skin forming thermoplastic resin particles having a particle size >=300mum are sparyed onto the cavity surface 2a to fuse. Then the mold 1 is opened, the inner part forming resin particles 4 that have been prefoamed to become a partly fused and softened state are loaded in the cavity 2, and after low pressurized steam is introduced through steam penetrating holes 3a of the first chamber 3 into the cavity 2 to fuse the resin particles 4, the mold 1 is closed, and is heated by highly pressurized steam to carry out the molding.
JP56069336A 1981-05-11 1981-05-11 Method of molding synthetic resin foamed body with skin Pending JPS57185124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56069336A JPS57185124A (en) 1981-05-11 1981-05-11 Method of molding synthetic resin foamed body with skin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56069336A JPS57185124A (en) 1981-05-11 1981-05-11 Method of molding synthetic resin foamed body with skin

Publications (1)

Publication Number Publication Date
JPS57185124A true JPS57185124A (en) 1982-11-15

Family

ID=13399602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56069336A Pending JPS57185124A (en) 1981-05-11 1981-05-11 Method of molding synthetic resin foamed body with skin

Country Status (1)

Country Link
JP (1) JPS57185124A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171923A (en) * 1982-04-02 1983-10-08 Honda Motor Co Ltd Manufacture of foamed olefine resin molded object

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171923A (en) * 1982-04-02 1983-10-08 Honda Motor Co Ltd Manufacture of foamed olefine resin molded object

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