发明名称 |
Reducing the thermal coefficient of expan- - sion of plastic sections, extruded parts, |
摘要 |
The sections are heated to a predetermined temp. and mechanically deformed. Spec., a temp. near the maximum operating temp. but below the softening point of plastic is applied. The sections are mechanically reduced or off-set, stretched or deformed by expansion in a mechanically deformable mould. |
申请公布号 |
DE1930942(A1) |
申请公布日期 |
1970.12.23 |
申请号 |
DE19691930942 |
申请日期 |
1969.06.19 |
申请人 |
HEINZ SCHUERMANN & CO |
发明人 |
ERNST VON WEDEL,DR.-ING.;WERNER KIENZLE,DR.-ING. |
分类号 |
B29C67/00 |
主分类号 |
B29C67/00 |
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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