发明名称 |
PLASTIC PIPE HAVING A SOCKET, AND A METHOD OF PROVIDING A PLASTIC PIPE WITH A SOCKET |
摘要 |
A plastic pipe provided with a socket and a method of providing a plastic pipe with a socket, whereby the socket (2e) comprises at least two layers. The orientation of at least one socket layer is different from the orientation of another layer and the orientation of at least one layer is different from the orientation of a body portion (2d) of the plastic pipe (2). The socket (2e) is made for instance from a plastic pipe (2) comprising at least two layers (2a to 2c). The orientation temperatures of at least two different layers (2a to 2c) are different. The plastic pipe (2) is heated to a temperature at which the material of at least one layer is oriented during expansion and the material of at least one layer is substantially not oriented during expansion. The end of the plastic pipe is expanded at said temperature so as to provide it with a socket (2e).
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申请公布号 |
WO0060271(A1) |
申请公布日期 |
2000.10.12 |
申请号 |
WO2000FI00282 |
申请日期 |
2000.03.31 |
申请人 |
UPONOR INNOVATION AB;JAERVENKYLAE, JYRI;HIPPELAEINEN, ESKO |
发明人 |
JAERVENKYLAE, JYRI;HIPPELAEINEN, ESKO |
分类号 |
F16L47/06;B29C57/02;B29K23/00;B29K105/24;B29L9/00;B29L23/00;B32B1/08;B32B27/32;F16L37/092;F16L47/00;F16L47/08;F16L47/12;(IPC1-7):F16L47/06 |
主分类号 |
F16L47/06 |
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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