发明名称 |
METHOD OF RELEASING AN INNER MOLD FROM A RUBBERY ELASTIC MOLDING |
摘要 |
<p>Disclosed herein is a method of releasing an inner mold from a rubbery elastic molding having a corrugation in its inner longitudinal cavity and adapted suitably for, but not limited to, use in an electrical bushing or electrical insulator, which method comprises steps: forming a partial space connecting to a pressure source at an interface between the molding and the inner mold; supplying a pressure medium such as a gas or a liquid from the pressure source into the interface via said space to form a desired space between the molding and the inner mold over its entire zone and to expand the inner cavity of the molding; and releasing the inner mold from the molding.</p> |
申请公布号 |
CA1219419(A) |
申请公布日期 |
1987.03.24 |
申请号 |
CA19840447625 |
申请日期 |
1984.02.16 |
申请人 |
NGK INSULATORS, LTD. |
发明人 |
GOTO, DAISAKU;SUGIMOTO, HIKOHARU;KATO, NOBUYUKI |
分类号 |
B29C35/00;B29B13/00;B29B15/00;B29C33/00;B29C33/02;B29C33/44;B29C33/46;B29C33/76;B29C37/00;(IPC1-7):B29C45/40 |
主分类号 |
B29C35/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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