发明名称 |
Apparatus for the preparation of foamed thermoplastic extruded profiles |
摘要 |
An apparatus for the production of extruded profiles of foamed thermoplasts consisting of an extruder having an extrusion screw and a form-giving extruder head having a flow channel therethrough characterized in that at least part of the length of said flow channel is divided by separating walls having a thickness of 0.2 to 3 mm arranged in the axial direction into individual channels of such a length and cross-section area whereby each individual channel has a nozzle coefficient k of from 0.1 to 2 mm3; as well as the process of extrusion.
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申请公布号 |
US3941544(A) |
申请公布日期 |
1976.03.02 |
申请号 |
US19730404506 |
申请日期 |
1973.10.09 |
申请人 |
WACKER-CHEMIE GMBH |
发明人 |
BARTH, HANS JOCHEN |
分类号 |
B29B7/00;B29C44/46;B29C47/00;B29C47/20;B29C47/30;(IPC1-7):B29D7/02;B29D27/00;B29F3/06 |
主分类号 |
B29B7/00 |
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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