发明名称 |
METHOD OF WELDING TUBULAR PRODUCTS OF POLYARYLENE SULFIDE AND |
摘要 |
A pair of tubular products (1a,1b) of polyarylene sulfide having end faces to be welded are welded to each other by heating the end faces by a hot plate (7) in no contact with the end faces to a surface temperature which is at least the melting heat-absorption peak temperature and at most 80 DEG C above the melting initiation temperature of the polyarylene sulfide, and abutting the end faces under a pressure of 50 - 1500 kPa when the end faces are at a surface temperature which is at least 10 DEG C above the melting initiation temperature and not exceeding the melting heat-absorption peak temperature of the polyarylene sulfide. As a result, a welded tubular structure having a weld with a small inside bead (9) but having a sufficiently large weld strength can be obtained with substantially no thermal degradation and at a good operating efficiency. <IMAGE> |
申请公布号 |
KR960000940(B1) |
申请公布日期 |
1996.01.15 |
申请号 |
KR19920023915 |
申请日期 |
1992.12.11 |
申请人 |
KUREHA CHEMICAL IND. K.K. |
发明人 |
USUI, SATOSHI;KODAMA, KOUICHI;YAMANOBE, YOOICHIRO;KASHIWADATE, KEN |
分类号 |
B29C65/00;B29C65/14;C08J5/12 |
主分类号 |
B29C65/00 |
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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