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Abstract：
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Based on the envelope line in the terminal plane,the three-dimension model of twin-screw adopted in the preparation of metal semi-solid slurry was studied using the software code Pro/E.The twin-screw rotated in the same direction,and had the ability of self-cleaning,which was the advantage compared to those normal twin-screws.The twin-screw was assembled in the phase difference equals to 90°,and from the schematic plan,the space between them was very uniform.All these features will provide the shearing and mixing ability to the semi-solid slurry,which is beneficial to the glomeration of crystal grain.This work laid a solid foundation for fabricating the device and numerical simulation of metal semi-solid slurry preparation.
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Funds：
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国家自然科学基金资助项目(50674017);;
中国博士后基金资助项目(20070420023)
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AuthorIntro：
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Reference：
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[1]耿孝正.双螺杆挤出机及其应用[M].北京:中国轻工业出版社,2003.
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