JPS5725910A - Manufacture of polyolefin series resin plate having different thicknesses - Google Patents
Manufacture of polyolefin series resin plate having different thicknessesInfo
- Publication number
- JPS5725910A JPS5725910A JP9981080A JP9981080A JPS5725910A JP S5725910 A JPS5725910 A JP S5725910A JP 9981080 A JP9981080 A JP 9981080A JP 9981080 A JP9981080 A JP 9981080A JP S5725910 A JPS5725910 A JP S5725910A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- pressure
- product
- manufacture
- different thicknesses
- 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
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To manufacture the resin plate having the parts of different thicknesses with good operability and a quick turnover, by inserting a raw material together with a preliminarily formed resin body having a special shape into metal molds having concave and convex parts, and applying heat and pressure.
CONSTITUTION: A resin product 1, which has thick parts 2 at the outer periphery and thin part 3 at the concave central part 4, is to be formed. In the metal molds (a) and (a') having the convex parts (c) and (c') at the center, are inserted the resin forming body 11 and the raw resin material (pellet) 20. A cutout cavity 12 is provided at the center of said resin forming body 11, which is to become the product 1. Heat and pressure are applied to the metal molds (a) and (a'), and the pellet 20 is melted. The melted material is filled at the periphery of the resin forming body 11. Then the clamping pressure is further applied, while heating is continued for a specified time with the pressure maintained. Then the molds (a) and (a') are cooled, the resin is solidified, and the product 1 is taken out.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9981080A JPS5725910A (en) | 1980-07-23 | 1980-07-23 | Manufacture of polyolefin series resin plate having different thicknesses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9981080A JPS5725910A (en) | 1980-07-23 | 1980-07-23 | Manufacture of polyolefin series resin plate having different thicknesses |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5725910A true JPS5725910A (en) | 1982-02-10 |
Family
ID=14257207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9981080A Pending JPS5725910A (en) | 1980-07-23 | 1980-07-23 | Manufacture of polyolefin series resin plate having different thicknesses |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5725910A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59131415A (en) * | 1983-01-18 | 1984-07-28 | Mitsubishi Plastics Ind Ltd | Preparation of crystal resin platelike object |
-
1980
- 1980-07-23 JP JP9981080A patent/JPS5725910A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59131415A (en) * | 1983-01-18 | 1984-07-28 | Mitsubishi Plastics Ind Ltd | Preparation of crystal resin platelike object |
JPH0348850B2 (en) * | 1983-01-18 | 1991-07-25 | Mitsubishi Plastics Ind |
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