发明名称 |
Screw for plasticating apparatus and method of use |
摘要 |
<p>A plasticating screw and method of plasticating without thermal degradation problems. Said screw having a metering section with a helical flight disposed within and cooperating with the innerwall of a heated barrel. In particular, solid resinous material is introduced to a helical valley extending between said flight. The resinous material is heated and plasticized by said apparatus while being advanced along a helical path towards an outlet opening by the rotation of said screw. The bottom surface of the helical valley in said metering section having a plurality of geometrically shaped surfaces in side-by-side relation with at least two of said shaped surfaces being sloped. During operation, the level differential between the shaped surfaces induces a continuous tumbling, variable shear and mixing action upon the molten resin as the molten resin in the metering section flows along the helical path. <IMAGE></p> |
申请公布号 |
EP0839631(A2) |
申请公布日期 |
1998.05.06 |
申请号 |
EP19970107480 |
申请日期 |
1997.05.07 |
申请人 |
SPIREX CORPORATION |
发明人 |
WOMER, TIMOTHY W.;COLBY, PAUL N.;WHITE, HARRY F. |
分类号 |
B29C45/60;B29C47/60;(IPC1-7):B29C47/60 |
主分类号 |
B29C45/60 |
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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