发明名称 |
MANUFACTURE OF THERMOPLASTIC PIPE |
摘要 |
A method of manufacturing thermoplastics pipe by the radial expansion of a pipe blank within a mould. The blank 28 is inserted horizontally into a raised central mould portion 12, with the ends of the blank 28 extending outwardly of the ends of the central mould portion 12. Portion 12 is then lowered to a first position where mandrels 19, 20 enter the blank 28 from each end, and then a second position where mould end caps 15, 17 are closed onto the central mould portion 12, and heating and expansion of the blank 28 is then effected. |
申请公布号 |
JPS5649210(A) |
申请公布日期 |
1981.05.02 |
申请号 |
JP19800128462 |
申请日期 |
1980.09.16 |
申请人 |
YORKSHIRE IMPERIAL PLASTICS |
发明人 |
UIRIAMU CHIYAARUZU ASUTON;DERETSUKU UOOKAA |
分类号 |
B29C49/00;B29C33/20;B29C33/76;B29C45/00;B29C49/30;B29C49/48;B29C49/56;B29C49/58;B29C49/66;B29C55/22;B29C57/00;B29C57/02;B29C57/08;B29C61/00;B29C65/00;B29L31/24 |
主分类号 |
B29C49/00 |
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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