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摘要：
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双螺杆制备半固态坯料的思想来之于注塑行业挤出机的原理,与其不同之处在于半固态坯料制备中,更为注重的是其剪切和混合效果。本文基于以上思想,从双螺杆的设计起步,确定了双螺杆和与之对应的捏合块规格和参数,并对螺杆工作产生的轴向力进行了计算,选择了相应的止推轴承。此外,还估算了半固态坯料制备生产能力,解决了轴承径向尺寸和双螺杆中心距之间的矛盾。
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The idea of producing metal semi-solid slurry using the device of twin-screw comes from the theory of polymer extruder used in injection industry,but they are not the same thoroughly.The device of twin-screw for metal semi-solid slurry preparation must be more efficient in shearing and mixing.Based on the above,the twin-screw and corresponding kneading blocks were designed,and the axial force occurred when the device in working condition was calculated.Besides,the production ability of metal semi-solid device was estimated and the contradiction between size of thrust bearing and center-to-center distance was solved.
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基金项目：
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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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作者简介：
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参考文献：
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