本文的工作为研究各种新型螺杆元件的输送和混合机理提供了一种新的方法。
Our research work has provided a new method for the study of the conveying and mixing mechanisms of various new types of screw elements.
捏合块是同向双螺杆挤出机中广泛使用着一种螺杆元件，其外形较复杂，精度要求较高。
Kneading blocks are a kind of screw elements wildly used in co-rotating twin screw extruders, with complicated shape and high precision.
由于包络法比齿型法线法应用简便，因此我们采用包络法设计了三种新型螺杆元件，并对其分别进行了流场分析。
Because of the flexibility of enveloping method than dentiform normal method, three new screws are designed by enveloping method with flow field analysis.
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