发明名称 |
MOLDING OF RECEIVING MOUTH OF THERMOPLASTIC RESIN PIPE |
摘要 |
PURPOSE: To mold the receiving mouth having good appearance of a thermal resin pipe composed of a crystalline resin such as polyethylene with good productivity without generating the dimensional change of the receiving mouth. CONSTITUTION: The small diameter part 21 of an inner mold 2 having an outer diameter almost same to the inner diameter of the end part of a thermoplastic resin pipe P is inserted in the end part of the heated and softened thermoplastic resin pipe P and a cavity having the same shape as a receiving mouth to be molded is formed by the end part of the thermoplastic resin pipe P, the molding surface 20 of the inner mold 2 and the molding surface 10 of an outer mold 1 and the same molten resin as the thermoplastic resin pipe P is filled into the cavity to be molded into a receiving mouth shape to mold the receiving mouth fused and bonded to the end part of the thermoplastic resin pipe. |
申请公布号 |
JPH08132476(A) |
申请公布日期 |
1996.05.28 |
申请号 |
JP19950086711 |
申请日期 |
1995.04.12 |
申请人 |
SEKISUI CHEM CO LTD |
发明人 |
YAMADA YONEKAZU;MIYAZAKI TOSHIHIKO;MAKINODAN TOSHIMI |
分类号 |
B29C45/33;B29C45/14;B29C57/00;B29D23/00;B29K23/00;B29L23/00;(IPC1-7):B29C45/14 |
主分类号 |
B29C45/33 |
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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