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| Finite element analysis and optimal research on plasticizing capacity of screws |
| LI Chang-Yong, YING Ji |
| Department of Mechanical Engineering，Zhejiang University，Hangzhou 310027，China |
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Abstract Although injection machines have been used extensively in industry，only extruder research has been emphasized．A model of the melt conveying section of injectors was established and analysed by the finite element software．And the velocity distribution in the vertical section as well as the output of the injection machine was derived．Based on the results above，the geometrical parameters of the metering section of the screw were optimized to obtain maximum output and minimum energy consumption．The results，about 38 screws，demonstrated that the performance of the optimized screw is better than that of the standard screw．
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Published: 28 August 2004
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螺杆塑化性能的有限元分析及优化研究
建立了注塑机计量段熔体输送模型，并运用有限元分析软件对这一模型进行动态模拟分析，计算出沿螺槽方向上纵截面的速度场，并计算出注塑机的塑化能力．在此基础上，以塑化能力为目标，对螺杆的计量段进行优化设计．以海天公司Ф38螺杆为例，验证了优化螺杆的优越性．
关键词：
注塑机,
螺杆,
计量段,
有限元,
优化设计
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