JPS562140A - Foaming molding method - Google Patents

Foaming molding method

Info

Publication number
JPS562140A
JPS562140A JP7869579A JP7869579A JPS562140A JP S562140 A JPS562140 A JP S562140A JP 7869579 A JP7869579 A JP 7869579A JP 7869579 A JP7869579 A JP 7869579A JP S562140 A JPS562140 A JP S562140A
Authority
JP
Japan
Prior art keywords
moldings
mold
resin grains
foaming
filled
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
JP7869579A
Other languages
Japanese (ja)
Other versions
JPS5928169B2 (en
Inventor
Masato Yaita
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.)
Sekisui Kasei Co Ltd
Original Assignee
Sekisui Plastics 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 Sekisui Plastics Co Ltd filed Critical Sekisui Plastics Co Ltd
Priority to JP54078695A priority Critical patent/JPS5928169B2/en
Publication of JPS562140A publication Critical patent/JPS562140A/en
Publication of JPS5928169B2 publication Critical patent/JPS5928169B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

PURPOSE: To obtain foaming moldings having uniform foaming magnification by a method wherein foaming thermoplastic resin grains are filled into mold cavities at the rising portion sides of the moldings, the resin grains are filled to the mold cavity side of a main body portion of the moldings, and the resin grains are heated and expanded.
CONSTITUTION: Clearances 6 for air vent are formed between a mold 3 for a core and a mold 4 for cavities and foaming thermoplastic resin grains are first filled into mold cavities 7 at the rising portion sides of moldings. The both molds 3, 4 are further mold-clamped so that the clearances 6 be removed by moving a moving frame, the resin grains are filled into a mold cavity 8 at the main body portion side of the moldings through a filling pipe 5, ateam is introduced from steam holes 9, 10, the resin grains are heated and expanded, foamed and molded, and cooled, and the molds are removed, and foaming moldings are extracted.
COPYRIGHT: (C)1981,JPO&Japio
JP54078695A 1979-06-21 1979-06-21 Foam molding method Expired JPS5928169B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54078695A JPS5928169B2 (en) 1979-06-21 1979-06-21 Foam molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54078695A JPS5928169B2 (en) 1979-06-21 1979-06-21 Foam molding method

Publications (2)

Publication Number Publication Date
JPS562140A true JPS562140A (en) 1981-01-10
JPS5928169B2 JPS5928169B2 (en) 1984-07-11

Family

ID=13668996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54078695A Expired JPS5928169B2 (en) 1979-06-21 1979-06-21 Foam molding method

Country Status (1)

Country Link
JP (1) JPS5928169B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57167223A (en) * 1981-04-09 1982-10-15 Sekisui Plastics Co Ltd Filling method for raw material particle in expansion molding
JPS57167222A (en) * 1981-04-07 1982-10-15 Sekisui Plastics Co Ltd Filling method for raw material particle in expansion molding
JPS60138013A (en) * 1983-12-27 1985-07-22 Res Inst Electric Magnetic Alloys Production of magnetic alloy having rectangular hysteresis and production of reed piece and reed switch
JPH01221820A (en) * 1989-01-17 1989-09-05 Res Inst Electric Magnetic Alloys Manufacturing method of square hysteresis magnetic reed piece and reed switch
CN105855509A (en) * 2016-06-30 2016-08-17 吴江市液铸液压件铸造有限公司 Die casting moulding die

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57167222A (en) * 1981-04-07 1982-10-15 Sekisui Plastics Co Ltd Filling method for raw material particle in expansion molding
JPS57167223A (en) * 1981-04-09 1982-10-15 Sekisui Plastics Co Ltd Filling method for raw material particle in expansion molding
JPS60138013A (en) * 1983-12-27 1985-07-22 Res Inst Electric Magnetic Alloys Production of magnetic alloy having rectangular hysteresis and production of reed piece and reed switch
JPH01221820A (en) * 1989-01-17 1989-09-05 Res Inst Electric Magnetic Alloys Manufacturing method of square hysteresis magnetic reed piece and reed switch
CN105855509A (en) * 2016-06-30 2016-08-17 吴江市液铸液压件铸造有限公司 Die casting moulding die

Also Published As

Publication number Publication date
JPS5928169B2 (en) 1984-07-11

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