发明名称 |
Melt-sealing device for extruders for the processing of thermoplastic polymers or rubber |
摘要 |
A melt-sealing device for extruders for thermoplastic polymers or rubber for sealing off the gear unit side against high-melt pressure, in which sealing is effected by the configuration of the extruder screw which includes an intake section, a compression section having a channel depth that decreases in the conveying direction, a metering section with a constant screw channel depth, a smooth annular melt channel section, and a blister element with an annular gap for the sealing melt.
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申请公布号 |
US5490725(A) |
申请公布日期 |
1996.02.13 |
申请号 |
US19940313870 |
申请日期 |
1994.09.28 |
申请人 |
HERMANN BERSTORFF MASCHINENBAU GMBH |
发明人 |
BEHRENS, FRIEDRICH-OTTO;PROOESSLER, ULRICH;VOIGT, JUERGEN |
分类号 |
B29C47/60;B29C47/08;B29C47/38;B29K21/00;B29K101/10;(IPC1-7):B28C7/04;B29B7/42 |
主分类号 |
B29C47/60 |
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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