发明名称 |
Ultra-high molecular weight polyethylene thin-wall pipe, and method of and apparatus for manufacturing the same |
摘要 |
A method of manufacture of an ultra-high molecular weight polyethylene thin-wall pipe which is uniform in thickness and free from a folded mark. The ultra-high molecular weight polyethylene thin-wall pipe is manufactured by supplying ultra-high molecular weight polyethylene into and melting and kneading, continuously extruding the molten substance of the ultra-high molecular weight polyethylene from a die connected to a screw of the screw extruder to form a cylindrical roughly shaped article, and diametrically expanding the cylindrical roughly extruded article by means of a tapered core and taking up.
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申请公布号 |
US5290498(A) |
申请公布日期 |
1994.03.01 |
申请号 |
US19920862958 |
申请日期 |
1992.04.03 |
申请人 |
MITSUI PETROCHEMICAL INDUSTRIES, LTD. |
发明人 |
SHIRAKI, TAKESHI;SUZUKI, IWATOSI;HIROSHIGE, KUNIE |
分类号 |
B29C47/00;B29C47/60;B29C55/24;F16L9/12;(IPC1-7):B29C47/24 |
主分类号 |
B29C47/00 |
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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