JPS56133129A - Molding method of plastics - Google Patents

Molding method of plastics

Info

Publication number
JPS56133129A
JPS56133129A JP3473780A JP3473780A JPS56133129A JP S56133129 A JPS56133129 A JP S56133129A JP 3473780 A JP3473780 A JP 3473780A JP 3473780 A JP3473780 A JP 3473780A JP S56133129 A JPS56133129 A JP S56133129A
Authority
JP
Japan
Prior art keywords
point
mold
plastics
pressing
press
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
JP3473780A
Other languages
Japanese (ja)
Other versions
JPS595098B2 (en
Inventor
Susumu Ogiwara
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.)
Aida Engineering Ltd
Original Assignee
Aida Engineering 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 Aida Engineering Ltd filed Critical Aida Engineering Ltd
Priority to JP3473780A priority Critical patent/JPS595098B2/en
Publication of JPS56133129A publication Critical patent/JPS56133129A/en
Publication of JPS595098B2 publication Critical patent/JPS595098B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To prevent defects to be caused by gases in case of a compression molding of plastics using a mold, by applying pressure first so as to degas heated plastics and then pressing to an eventual shape.
CONSTITUTION: An stock material 3 containing reinforcing member is made by heating into a blank material 4, which is fed to a mold 7. The mold 7 consists of an upper mold 7a and a lower mold 7b. Suppose, in a crank angle of a press, the point 0 is the upper yield point, the point Q2 the lower yield point, the points Q1 and Q3 positioned respectively before and after the lower yield point, and one stroke starts from the point 0 passing through Q1, Q2, Q3 and comes back to the point 0, the material 4 is compressed at the point Q1 by the upward force of a die cushion 8. Therefore the pressing is suspended here to perform breathing for a while. Then at the point Q2 another pressure is applied by the press to obtain a worked product 6.
COPYRIGHT: (C)1981,JPO&Japio
JP3473780A 1980-03-21 1980-03-21 Plastic molding method Expired JPS595098B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3473780A JPS595098B2 (en) 1980-03-21 1980-03-21 Plastic molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3473780A JPS595098B2 (en) 1980-03-21 1980-03-21 Plastic molding method

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP17307983A Division JPS5976208A (en) 1983-09-21 1983-09-21 Molding method of plastics

Publications (2)

Publication Number Publication Date
JPS56133129A true JPS56133129A (en) 1981-10-19
JPS595098B2 JPS595098B2 (en) 1984-02-02

Family

ID=12422623

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3473780A Expired JPS595098B2 (en) 1980-03-21 1980-03-21 Plastic molding method

Country Status (1)

Country Link
JP (1) JPS595098B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145410A (en) * 1982-02-22 1983-08-30 Aida Eng Ltd Forming method of plastic material by mechanical press
JPS58171314U (en) * 1982-05-13 1983-11-16 アイダエンジニアリング株式会社 Mold for molding plastic materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145410A (en) * 1982-02-22 1983-08-30 Aida Eng Ltd Forming method of plastic material by mechanical press
JPS58171314U (en) * 1982-05-13 1983-11-16 アイダエンジニアリング株式会社 Mold for molding plastic materials

Also Published As

Publication number Publication date
JPS595098B2 (en) 1984-02-02

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