发明名称 |
Centrifugal process for the production of a pipe-shaped body and a pipe-shaped body produced according to the centrifugal process |
摘要 |
A pipe-shaped body having an outer surface of synthetic resin with an inner reinforcement comprising an inner layer of fibrous material and an outer layer of a mat permeable by the synthetic resin and impenetrable by fibers of the fibrous material is formed by providing a mold having an inner wall shaped like the outer surface of the pipe-shaped body, inserting the reinforcement into the mold such that the mat portion thereof generally loosely abuts the inner wall of the mold, injecting the synthetic resin into the mold, and rotating the mold about its longitudinal axis.
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申请公布号 |
US4383965(A) |
申请公布日期 |
1983.05.17 |
申请号 |
US19810229409 |
申请日期 |
1981.01.29 |
申请人 |
G.A. PFLEIDERER GMBH & CO., KG |
发明人 |
ROTHER, BRUNO;TROMMEN, HARTMUT |
分类号 |
B29C70/32;(IPC1-7):B29D3/02;B29D23/08;B29G7/00;B29C5/04 |
主分类号 |
B29C70/32 |
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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