JPS5791226A - Press forming method of synthetic resin - Google Patents
Press forming method of synthetic resinInfo
- Publication number
- JPS5791226A JPS5791226A JP16767480A JP16767480A JPS5791226A JP S5791226 A JPS5791226 A JP S5791226A JP 16767480 A JP16767480 A JP 16767480A JP 16767480 A JP16767480 A JP 16767480A JP S5791226 A JPS5791226 A JP S5791226A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- resin material
- originals
- molds
- heated
- 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)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
PURPOSE: To obtain a product having no forming distorsion by a method wherein a high frequency voltage is applied between an upper and a lower mold during a pressing process and synthetic resin to be worked is heated uniformly and efficiently by internal heating on the basis of dielectric loss.
CONSTITUTION: Originals 4a, 4b are installed respectively on a pair of an upper and a lower molds 9a, 9b made of conductor and a block of heated and molten synthetic resin material 5 is arranged between both originals. Then, the mold 9b is elevated by a press machine 6, the synthetic resin material 5 is pressed and formed by the originals 4a, 4b, at the same time a high frequency voltage is applied to the molds 9a, 9b through the electrode parts 10a, 10b and the synthetic resin material 5 is heated by the internal heating on the basis of dielectric loss. Next, the heating is stopped, water is supplied to the spiral pipes 2a, 2b of the molds 9a, 9b to cool the cured synthetic resin material 5 and then the material is taken out to obtain a formed synthetic resin board.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16767480A JPS5791226A (en) | 1980-11-28 | 1980-11-28 | Press forming method of synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16767480A JPS5791226A (en) | 1980-11-28 | 1980-11-28 | Press forming method of synthetic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5791226A true JPS5791226A (en) | 1982-06-07 |
Family
ID=15854109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16767480A Pending JPS5791226A (en) | 1980-11-28 | 1980-11-28 | Press forming method of synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5791226A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59174320A (en) * | 1983-03-24 | 1984-10-02 | Yoshino Kogyosho Co Ltd | Method of forming circular sheet body |
| JPS6140122A (en) * | 1984-08-01 | 1986-02-26 | Teijin Ltd | Preparation of polyester resin molding |
| JPH02155622A (en) * | 1988-12-08 | 1990-06-14 | Yamamoto Binitaa Kk | Method for molding thermoplastic synthetic resin by high frequency induction heating |
| JPH0345312A (en) * | 1989-07-13 | 1991-02-26 | Toyo Linoleum Co Ltd | Manufacture of decorative material |
| JP5462401B1 (en) * | 2013-08-19 | 2014-04-02 | クツワ工業株式会社 | Surface molding method and surface molding apparatus for thermoplastic resin sheet |
| CN111886120A (en) * | 2018-03-30 | 2020-11-03 | 马自达汽车株式会社 | Injection molding apparatus, injection molding method, and resin material for injection molding |
-
1980
- 1980-11-28 JP JP16767480A patent/JPS5791226A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59174320A (en) * | 1983-03-24 | 1984-10-02 | Yoshino Kogyosho Co Ltd | Method of forming circular sheet body |
| JPH0567407B2 (en) * | 1983-03-24 | 1993-09-24 | Yoshino Kogyosho Co Ltd | |
| JPS6140122A (en) * | 1984-08-01 | 1986-02-26 | Teijin Ltd | Preparation of polyester resin molding |
| JPH02155622A (en) * | 1988-12-08 | 1990-06-14 | Yamamoto Binitaa Kk | Method for molding thermoplastic synthetic resin by high frequency induction heating |
| JPH0345312A (en) * | 1989-07-13 | 1991-02-26 | Toyo Linoleum Co Ltd | Manufacture of decorative material |
| JPH0579211B2 (en) * | 1989-07-13 | 1993-11-01 | Toyo Linoleum | |
| JP5462401B1 (en) * | 2013-08-19 | 2014-04-02 | クツワ工業株式会社 | Surface molding method and surface molding apparatus for thermoplastic resin sheet |
| CN111886120A (en) * | 2018-03-30 | 2020-11-03 | 马自达汽车株式会社 | Injection molding apparatus, injection molding method, and resin material for injection molding |
| CN111886120B (en) * | 2018-03-30 | 2022-05-31 | 马自达汽车株式会社 | Resin material for injection molding |
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