JPS55109639A - Method of injection molding - Google Patents

Method of injection molding

Info

Publication number
JPS55109639A
JPS55109639A JP1542479A JP1542479A JPS55109639A JP S55109639 A JPS55109639 A JP S55109639A JP 1542479 A JP1542479 A JP 1542479A JP 1542479 A JP1542479 A JP 1542479A JP S55109639 A JPS55109639 A JP S55109639A
Authority
JP
Japan
Prior art keywords
molds
resin
injection molding
clean surface
metal mold
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
JP1542479A
Other languages
Japanese (ja)
Other versions
JPS5840504B2 (en
Inventor
Akihiro Wada
Kichiya Tazaki
Tamotsu Tawara
Keiji Suzuki
Yukihisa Mizutani
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.)
Asahi Dow Ltd
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Dow Ltd
Asahi Chemical 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 Asahi Dow Ltd, Asahi Chemical Industry Co Ltd filed Critical Asahi Dow Ltd
Priority to JP54015424A priority Critical patent/JPS5840504B2/en
Publication of JPS55109639A publication Critical patent/JPS55109639A/en
Publication of JPS5840504B2 publication Critical patent/JPS5840504B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE: To provide a molded piece of clean surface, by heating only the surfaces of metal molds above a prescribed temperature and thereafter performing injection molding.
CONSTITUTION: Just before a theremoplastic resin is injection-molded, the surfaces of metal molds are heated above the thermal deformation temperature of the resin. It is preferable to insert the inductor 3 of a high-frequency oscillator in between the fixed metal mold 1 and the moving metal mold 2 to dielectrically heat the surfaces of the molds. According to this method, a clean surface is provided even if the thermoplastic resin is mixed with a filler such as fiberglass.
COPYRIGHT: (C)1980,JPO&Japio
JP54015424A 1979-02-15 1979-02-15 Injection molding method Expired JPS5840504B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54015424A JPS5840504B2 (en) 1979-02-15 1979-02-15 Injection molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54015424A JPS5840504B2 (en) 1979-02-15 1979-02-15 Injection molding method

Publications (2)

Publication Number Publication Date
JPS55109639A true JPS55109639A (en) 1980-08-23
JPS5840504B2 JPS5840504B2 (en) 1983-09-06

Family

ID=11888379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54015424A Expired JPS5840504B2 (en) 1979-02-15 1979-02-15 Injection molding method

Country Status (1)

Country Link
JP (1) JPS5840504B2 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6144616A (en) * 1984-08-10 1986-03-04 Japan Steel Works Ltd:The Molding process of thin wall molded product
JPS61197213A (en) * 1985-02-28 1986-09-01 Sekisui Chem Co Ltd Injection molding method for precision molded article
JPS6360724A (en) * 1986-09-01 1988-03-16 Ricoh Co Ltd Injection molding method
JPS6430725A (en) * 1987-07-25 1989-02-01 Nissei Plastics Ind Co Method for raising mold temperature
WO2004033184A1 (en) * 2002-10-08 2004-04-22 Idemitsu Kosan Co., Ltd. Molding method and resin moldings
US6752612B2 (en) 2001-01-17 2004-06-22 Ono Sangyo Co., Ltd. Mold device for injection molding of synthetic resin
US6936206B1 (en) 1999-05-06 2005-08-30 Mitsui Chemicals, Inc. Synthetic resin molding mold, apparatus for and method of adjusting a temperature of the mold
JP2006240085A (en) * 2005-03-03 2006-09-14 Ono Sangyo Kk Plated composite thermoplastic resin molding
JP2007191616A (en) * 2006-01-20 2007-08-02 Asahi Kasei Chemicals Corp Molded product of fine glass-containing styrene-based thermoplastic resin composition
US8894401B2 (en) 2012-06-13 2014-11-25 Gnst Co., Ltd. Injection mold apparatus with a cooling and heating passage
KR20170008932A (en) 2015-07-14 2017-01-25 지엔에스티주식회사 Injection mold apparatus with weldless process having function ventilating gas
CN109810462A (en) * 2018-12-27 2019-05-28 会通新材料股份有限公司 A kind of bloom cubic texture material and preparation method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008087171A (en) * 2006-09-29 2008-04-17 Sumitomo Chemical Co Ltd Manufacturing method of thermoplastic resin molded object
FR2979047B1 (en) * 2011-08-10 2014-09-19 Roctool PROVITF FOR ADJUSTING THE QUALITY FACTOR OF AN INDUCTION HEATING SYSTEM, IN PARTICULAR AN INDEPENDENT HEATING MOLD
CN103692618A (en) * 2013-11-12 2014-04-02 陕西航空电气有限责任公司 Mold structure for polyimide material injection molding, and injection molding process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939664A (en) * 1972-08-22 1974-04-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939664A (en) * 1972-08-22 1974-04-13

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6144616A (en) * 1984-08-10 1986-03-04 Japan Steel Works Ltd:The Molding process of thin wall molded product
JPS61197213A (en) * 1985-02-28 1986-09-01 Sekisui Chem Co Ltd Injection molding method for precision molded article
JPS6360724A (en) * 1986-09-01 1988-03-16 Ricoh Co Ltd Injection molding method
JPS6430725A (en) * 1987-07-25 1989-02-01 Nissei Plastics Ind Co Method for raising mold temperature
US6936206B1 (en) 1999-05-06 2005-08-30 Mitsui Chemicals, Inc. Synthetic resin molding mold, apparatus for and method of adjusting a temperature of the mold
US6752612B2 (en) 2001-01-17 2004-06-22 Ono Sangyo Co., Ltd. Mold device for injection molding of synthetic resin
WO2004033184A1 (en) * 2002-10-08 2004-04-22 Idemitsu Kosan Co., Ltd. Molding method and resin moldings
US7638083B2 (en) 2002-10-08 2009-12-29 Prime Polymer Co., Ltd. Molding method and resin moldings
JP2006240085A (en) * 2005-03-03 2006-09-14 Ono Sangyo Kk Plated composite thermoplastic resin molding
JP2007191616A (en) * 2006-01-20 2007-08-02 Asahi Kasei Chemicals Corp Molded product of fine glass-containing styrene-based thermoplastic resin composition
US8894401B2 (en) 2012-06-13 2014-11-25 Gnst Co., Ltd. Injection mold apparatus with a cooling and heating passage
KR20170008932A (en) 2015-07-14 2017-01-25 지엔에스티주식회사 Injection mold apparatus with weldless process having function ventilating gas
CN109810462A (en) * 2018-12-27 2019-05-28 会通新材料股份有限公司 A kind of bloom cubic texture material and preparation method thereof

Also Published As

Publication number Publication date
JPS5840504B2 (en) 1983-09-06

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