JPS57181834A - Method and apparatus for molding synthetic resin foam - Google Patents

Method and apparatus for molding synthetic resin foam

Info

Publication number
JPS57181834A
JPS57181834A JP56067476A JP6747681A JPS57181834A JP S57181834 A JPS57181834 A JP S57181834A JP 56067476 A JP56067476 A JP 56067476A JP 6747681 A JP6747681 A JP 6747681A JP S57181834 A JPS57181834 A JP S57181834A
Authority
JP
Japan
Prior art keywords
molded object
steam
mold
water
torr
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
JP56067476A
Other languages
Japanese (ja)
Other versions
JPS6145941B2 (en
Inventor
Tatsuo Hayashi
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
Original Assignee
OSAKA FIBRE INDUSTRY
Daisen Industry 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 filed Critical OSAKA FIBRE INDUSTRY
Priority to JP56067476A priority Critical patent/JPS57181834A/en
Publication of JPS57181834A publication Critical patent/JPS57181834A/en
Publication of JPS6145941B2 publication Critical patent/JPS6145941B2/ja
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)

Abstract

PURPOSE:To omit a drying process following a mold release, by evacuating the inside of the mold by a stabilizing process after steam supply, evaporating water in a molded object and drying the molded objected. CONSTITUTION:After the raw material bead in a mold is foamed and fusion- bonded by supply of steam, the molds 1, 1' and a molded object are cooled by cooling water and air, then the inside of chambers 4, 4' and a pressure reducing apparatus 16 are connected by opening only the valves 21, 21' when the molded object is cooled to a certain temperature. If the pressure of the inside of chambers 4, 4' is lowered below 600 Torr, preferably below 100 Torr, condensed water from steam for foaming and cooling water or water contained in the molded object are evaporated at a relatively low temperature due to a reduced pressure.
JP56067476A 1981-05-01 1981-05-01 Method and apparatus for molding synthetic resin foam Granted JPS57181834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56067476A JPS57181834A (en) 1981-05-01 1981-05-01 Method and apparatus for molding synthetic resin foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56067476A JPS57181834A (en) 1981-05-01 1981-05-01 Method and apparatus for molding synthetic resin foam

Publications (2)

Publication Number Publication Date
JPS57181834A true JPS57181834A (en) 1982-11-09
JPS6145941B2 JPS6145941B2 (en) 1986-10-11

Family

ID=13346049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56067476A Granted JPS57181834A (en) 1981-05-01 1981-05-01 Method and apparatus for molding synthetic resin foam

Country Status (1)

Country Link
JP (1) JPS57181834A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62150128U (en) * 1986-03-14 1987-09-22
JPS63276530A (en) * 1987-03-12 1988-11-14 Kanegafuchi Chem Ind Co Ltd Foaming method for thermoplastic synthetic resin block
JPH01148533A (en) * 1987-12-07 1989-06-09 Toyo Mach & Metal Co Ltd Foam molding device
JPH01148534A (en) * 1987-12-07 1989-06-09 Toyo Mach & Metal Co Ltd Foam molding device
JP2011509198A (en) * 2008-01-12 2011-03-24 ベール ゲーエムベーハー Method for producing molded product made of foamed synthetic resin and apparatus for carrying out this method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55109633A (en) * 1979-02-16 1980-08-23 Sekisui Plastics Co Ltd Method of foam-shaping
JPS55128438A (en) * 1979-03-28 1980-10-04 Badische Yuka Co Ltd Cooling method and device fit for forming foamed synthetic resin

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55109633A (en) * 1979-02-16 1980-08-23 Sekisui Plastics Co Ltd Method of foam-shaping
JPS55128438A (en) * 1979-03-28 1980-10-04 Badische Yuka Co Ltd Cooling method and device fit for forming foamed synthetic resin

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62150128U (en) * 1986-03-14 1987-09-22
JPS63276530A (en) * 1987-03-12 1988-11-14 Kanegafuchi Chem Ind Co Ltd Foaming method for thermoplastic synthetic resin block
JPH01148533A (en) * 1987-12-07 1989-06-09 Toyo Mach & Metal Co Ltd Foam molding device
JPH01148534A (en) * 1987-12-07 1989-06-09 Toyo Mach & Metal Co Ltd Foam molding device
JP2011509198A (en) * 2008-01-12 2011-03-24 ベール ゲーエムベーハー Method for producing molded product made of foamed synthetic resin and apparatus for carrying out this method

Also Published As

Publication number Publication date
JPS6145941B2 (en) 1986-10-11

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