JPS5573534A - Production of formed polystyrene bead foam resistant to shock and bending - Google Patents

Production of formed polystyrene bead foam resistant to shock and bending

Info

Publication number
JPS5573534A
JPS5573534A JP14758578A JP14758578A JPS5573534A JP S5573534 A JPS5573534 A JP S5573534A JP 14758578 A JP14758578 A JP 14758578A JP 14758578 A JP14758578 A JP 14758578A JP S5573534 A JPS5573534 A JP S5573534A
Authority
JP
Japan
Prior art keywords
beads
cavity
shock
bending
mesh member
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
JP14758578A
Other languages
Japanese (ja)
Inventor
Kiyoto Dezuki
Satoru Yamada
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.)
Meiwa Corp
Original Assignee
Meiwa Corp
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 Meiwa Corp filed Critical Meiwa Corp
Priority to JP14758578A priority Critical patent/JPS5573534A/en
Publication of JPS5573534A publication Critical patent/JPS5573534A/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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1266—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being completely encapsulated, e.g. for packaging purposes or as reinforcement
    • 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 efficiently mass-produce formed polystyrene foams excellent in resistance to shock and bending by setting a rigid mesh member in a metal mold cavity, filling foamable polystyrene beads into the cavity, and heating the beads to foam them. CONSTITUTION:A rigid mesh member 4 coarser than the particle size of foamable polystyrene beads 5 is set as a reinforcement in a metal mold cavity 3, and the molds are fastened together. The beads 5 are filled into the cavity 3 through a pipe 25; because the beads 5 can pass through the mesh member 4 easily, the whole of the cavity 3 is filled with the beads 5 evenly. Introduced into vacant chambers 11 and 21 through steam holes 12 and 22, steam flows into the cavity 3. The heat of steam causes the beads 5 to foam and connect together integrally, yielding a formed polystyrene bead foam which incorporates the reinforcement 4.
JP14758578A 1978-11-29 1978-11-29 Production of formed polystyrene bead foam resistant to shock and bending Pending JPS5573534A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14758578A JPS5573534A (en) 1978-11-29 1978-11-29 Production of formed polystyrene bead foam resistant to shock and bending

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14758578A JPS5573534A (en) 1978-11-29 1978-11-29 Production of formed polystyrene bead foam resistant to shock and bending

Publications (1)

Publication Number Publication Date
JPS5573534A true JPS5573534A (en) 1980-06-03

Family

ID=15433668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14758578A Pending JPS5573534A (en) 1978-11-29 1978-11-29 Production of formed polystyrene bead foam resistant to shock and bending

Country Status (1)

Country Link
JP (1) JPS5573534A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62191124A (en) * 1986-02-19 1987-08-21 Tatsuro Okamura Molding of synthetic resin foam
WO2018001556A1 (en) * 2016-06-30 2018-01-04 Krallmann Kunststoffverarbeitung Gmbh Motor vehicle composite component and method for the production thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499571A (en) * 1972-05-23 1974-01-28
JPS4922173B1 (en) * 1969-10-24 1974-06-06

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922173B1 (en) * 1969-10-24 1974-06-06
JPS499571A (en) * 1972-05-23 1974-01-28

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62191124A (en) * 1986-02-19 1987-08-21 Tatsuro Okamura Molding of synthetic resin foam
WO2018001556A1 (en) * 2016-06-30 2018-01-04 Krallmann Kunststoffverarbeitung Gmbh Motor vehicle composite component and method for the production thereof

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