发明名称 |
Extruder injection apparatus |
摘要 |
A screw for use in an plasticating injection apparatus includes a plurality of interrupted primary flights. An outer surface of a primary valley is formed by the primary flights and features a plurality of plateaus. The plateaus span adjacent sections of the primary flights and define shallow levels between deeper levels of the primary valleys. This depth differential contributes to a turbulent mixing action which, along with the primary and secondary valleys, contributes to improve mixing action within a metering section of the screw. The primary flights are interrupted by secondary valleys which are of opposite hand to the primary valleys.
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申请公布号 |
US5318357(A) |
申请公布日期 |
1994.06.07 |
申请号 |
US19920899347 |
申请日期 |
1992.06.16 |
申请人 |
SPIREX CORPORATION |
发明人 |
COLBY, PAUL N.;SMITH, BRADLEY P.;BODNAR, SHAWN P. |
分类号 |
B29C47/60;(IPC1-7):B01F7/08;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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