发明名称 |
ELECTROWELD FITTING OR ELECTROWELD COLLAR |
摘要 |
An electroweld fitting or electroweld collar for synthetic resin pipes comprising a body of a thermoplastic and/or weldable synthetic resin, on the inner surface of which a heating coil is arranged. In order to weld an electric current is conducted to the heating coil, whereby the material of the body is strongly heated and becomes plastic. The invention solves the problem of reliably applying the contact pressure in the welding zone while using a reduced amount of material. To achieve this it is proposed that a reinforcement in the form of a winding or a tube be arranged on the outer surface of the body and that the thermal coefficient of expansion of the reinforcement be smaller than that of the body. |
申请公布号 |
AU596384(B2) |
申请公布日期 |
1990.05.03 |
申请号 |
AU19860065092 |
申请日期 |
1986.11.12 |
申请人 |
FRIEDRICHSFELD GMBH, KERAMIK-UND KUNSTSTOFFWERKE |
发明人 |
WOLFGANG SICHLER |
分类号 |
F16L47/02;B29C65/00;B29C65/34;F16L47/03 |
主分类号 |
F16L47/02 |
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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