JPS57138911A - Press-forming of special shaped resin product - Google Patents

Press-forming of special shaped resin product

Info

Publication number
JPS57138911A
JPS57138911A JP2297081A JP2297081A JPS57138911A JP S57138911 A JPS57138911 A JP S57138911A JP 2297081 A JP2297081 A JP 2297081A JP 2297081 A JP2297081 A JP 2297081A JP S57138911 A JPS57138911 A JP S57138911A
Authority
JP
Japan
Prior art keywords
resin sheet
softened resin
clamping
pressing
special shaped
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
JP2297081A
Other languages
Japanese (ja)
Other versions
JPS591569B2 (en
Inventor
Hidemichi Kazama
Tsuneo Suzuki
Hiroshi Watanabe
Tadayuki Harada
Mitsuhiro Takeda
Mitsuru Mochizuki
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.)
YAMAKAWA KOGYO KK
Original Assignee
YAMAKAWA KOGYO KK
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 YAMAKAWA KOGYO KK filed Critical YAMAKAWA KOGYO KK
Priority to JP2297081A priority Critical patent/JPS591569B2/en
Publication of JPS57138911A publication Critical patent/JPS57138911A/en
Publication of JPS591569B2 publication Critical patent/JPS591569B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To suppress effectively generation of local overstretching, by performing pressing after attaching beforehand a thin reinforcing object to the overstretch generating part of the softened resin sheet due to the mold clamping.
CONSTITUTION: When a special shaped resin product 3' is formed by clamping the upper and lower molds 1, 2 and pressing the softened resin sheet 3, a reinforcing thin object 4 is beforehand attached to provide tensile strength at least to the overstretch generating part A of the softened resin sheet 3 caused by clamping of the mold, and to perform thereafter pressing. The softened resin sheet 3 which is provided with tensile strength by attaching the reinforcing thin object 4 can prevent very effectively a locally thinning phenomenon of the wall thickness, even for a deep-drawn article.
COPYRIGHT: (C)1982,JPO&Japio
JP2297081A 1981-02-20 1981-02-20 Press molding method for irregularly shaped resin products Expired JPS591569B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2297081A JPS591569B2 (en) 1981-02-20 1981-02-20 Press molding method for irregularly shaped resin products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2297081A JPS591569B2 (en) 1981-02-20 1981-02-20 Press molding method for irregularly shaped resin products

Publications (2)

Publication Number Publication Date
JPS57138911A true JPS57138911A (en) 1982-08-27
JPS591569B2 JPS591569B2 (en) 1984-01-12

Family

ID=12097425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2297081A Expired JPS591569B2 (en) 1981-02-20 1981-02-20 Press molding method for irregularly shaped resin products

Country Status (1)

Country Link
JP (1) JPS591569B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135215A (en) * 1984-07-19 1986-02-19 Matsushita Electric Works Ltd Molding method of thermoplastic resin

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5899421B2 (en) * 2012-05-11 2016-04-06 パナソニックＩｐマネジメント株式会社 Synthetic resin sheet thickness control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135215A (en) * 1984-07-19 1986-02-19 Matsushita Electric Works Ltd Molding method of thermoplastic resin

Also Published As

Publication number Publication date
JPS591569B2 (en) 1984-01-12

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