JPS5638215A - Thermoforming method for plastic sheet - Google Patents
Thermoforming method for plastic sheetInfo
- Publication number
- JPS5638215A JPS5638215A JP11483779A JP11483779A JPS5638215A JP S5638215 A JPS5638215 A JP S5638215A JP 11483779 A JP11483779 A JP 11483779A JP 11483779 A JP11483779 A JP 11483779A JP S5638215 A JPS5638215 A JP S5638215A
- Authority
- JP
- Japan
- Prior art keywords
- die
- heating
- plastic sheet
- compressed
- sheet
- 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.)
- Pending
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To obtain a themoforming product which is free from shrinkage at the time when it is taken out and has an accurate form by a method wherein a plastic sheet is formed along a heating die and then undergoes heat treatment and a formed article thus obtained is transferred into a cooling die corresponding to the heating die to be cooled.
CONSTITUTION: After being heated up to the forming temperature by a heating device 4, a plastic sheet 1 is placed on the upper surface of a compressed-air chamber 5. Next, a heating die 2 being lowered, the sheet 1 is set in a position between the die 2 and the compressed-air chamber 5, and then the compressed air is sent in along an arrow and the sheet 1 is formed from a position (a) to a position (b) along the heating die 2. A formed article thus obtained undergoes heat treatment for a fixed time in the compressed air preserved. Then, a cooling die 3 having a form corresponding to the heatind die 2 is elevated inside the chamber 5 and is made fitted to the heating die 2 in its position C. Then, by discharging the compressed air in the direction of an arrow, the formed article is transferred to and made to contact with the cooling die 3 naturally and fittedly by its own force of shrinkage to be cooled thereby.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11483779A JPS5638215A (en) | 1979-09-07 | 1979-09-07 | Thermoforming method for plastic sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11483779A JPS5638215A (en) | 1979-09-07 | 1979-09-07 | Thermoforming method for plastic sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5638215A true JPS5638215A (en) | 1981-04-13 |
Family
ID=14647931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11483779A Pending JPS5638215A (en) | 1979-09-07 | 1979-09-07 | Thermoforming method for plastic sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5638215A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS605697A (en) * | 1983-06-23 | 1985-01-12 | Pioneer Electronic Corp | Manufacture of acoustic diaphragm |
JPS62270319A (en) * | 1986-05-20 | 1987-11-24 | Honda Motor Co Ltd | Method and device for vacuum laminate |
JPS63134718U (en) * | 1987-02-25 | 1988-09-05 | ||
US5618486A (en) * | 1995-05-16 | 1997-04-08 | Sekisui Plastics Co., Ltd. | Process for manufacturing a heat-resistant molded foam product |
JP2001162676A (en) * | 1999-12-08 | 2001-06-19 | Mitsubishi Plastics Ind Ltd | Polylactic acid molding and its molding method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5443971A (en) * | 1977-09-13 | 1979-04-06 | Daiafoil | Method of making polyester moldings |
-
1979
- 1979-09-07 JP JP11483779A patent/JPS5638215A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5443971A (en) * | 1977-09-13 | 1979-04-06 | Daiafoil | Method of making polyester moldings |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS605697A (en) * | 1983-06-23 | 1985-01-12 | Pioneer Electronic Corp | Manufacture of acoustic diaphragm |
JPS62270319A (en) * | 1986-05-20 | 1987-11-24 | Honda Motor Co Ltd | Method and device for vacuum laminate |
JPS63134718U (en) * | 1987-02-25 | 1988-09-05 | ||
US5618486A (en) * | 1995-05-16 | 1997-04-08 | Sekisui Plastics Co., Ltd. | Process for manufacturing a heat-resistant molded foam product |
JP2001162676A (en) * | 1999-12-08 | 2001-06-19 | Mitsubishi Plastics Ind Ltd | Polylactic acid molding and its molding method |
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