JPS5686712A - Mold for molding and preparation thereof - Google Patents
Mold for molding and preparation thereofInfo
- Publication number
- JPS5686712A JPS5686712A JP16435779A JP16435779A JPS5686712A JP S5686712 A JPS5686712 A JP S5686712A JP 16435779 A JP16435779 A JP 16435779A JP 16435779 A JP16435779 A JP 16435779A JP S5686712 A JPS5686712 A JP S5686712A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molding
- pressure
- less
- original
- 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)
Abstract
PURPOSE: To prepare a mold for molding which can produce moldings advantageously in a short time by a method wherein an original mold is pressed to a hard plastic form to form a concave part which coincides with the external shape of the original mold.
CONSTITUTION: An original mold is pushed to a hard plastic form and a concave part coinciding with the outer shape of the original mold is formed in the aforementioned form to produce a mold for molding. As a material to be used for the mold for molding, a thing which generates a pressure deformation required for the molding at a contact part easily through an extremely small contact pressure even when the thing is not pushed excessively and which does not restore the original form when the external force is removed is desirous. As a hard plastic satisfying these conditions, polyisocyanate group form is illustrated which is having a density of 0.016g/cm2 or less in the JISA-9514 test method, having a pressure strength of 0.5kg/cm2 or less in the ASTMD-1621 test method and having retaining strength of 7.0g/cm2 or less and 12.0/cm2 or less respectively during a 50% pressure and a 75% pressure in the JISK-6401 test method.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16435779A JPS5686712A (en) | 1979-12-18 | 1979-12-18 | Mold for molding and preparation thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16435779A JPS5686712A (en) | 1979-12-18 | 1979-12-18 | Mold for molding and preparation thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5686712A true JPS5686712A (en) | 1981-07-14 |
Family
ID=15791605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16435779A Pending JPS5686712A (en) | 1979-12-18 | 1979-12-18 | Mold for molding and preparation thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5686712A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4662712A (en) * | 1982-12-18 | 1987-05-05 | Tohoku Electric Power Co., Inc. | Non-metallic self-supporting aerial optical cable |
JP2022049624A (en) * | 2020-09-16 | 2022-03-29 | 有限会社クリオベッツ | Plaster cast and production method of plaster cast |
-
1979
- 1979-12-18 JP JP16435779A patent/JPS5686712A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4662712A (en) * | 1982-12-18 | 1987-05-05 | Tohoku Electric Power Co., Inc. | Non-metallic self-supporting aerial optical cable |
JP2022049624A (en) * | 2020-09-16 | 2022-03-29 | 有限会社クリオベッツ | Plaster cast and production method of plaster cast |
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