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局部挤压辅助提高压铸件质量的研究和应用
作者:贾志欣   作者单位:浙江大学宁波理工学院   期刊:特种铸造及有色合金
关键字:   出版单位:特铸杂志社

作者简介

中文摘要

摘要:形状复杂、壁厚不均匀的压铸件由于结构原因,在成形过程无法及时补缩,易出现缩孔缺陷。实施局部挤压辅助技术是提高这类压铸件质量的有效方法。给出了压铸成形过程中局部挤压的原理和结构,分析了挤压深度、挤压压力、挤压延迟时间和挤压持续时间对压铸件质量的影响,并通过实例说明了局部挤压的应用效果。

关键词 :压铸;局部挤压;缩孔;气孔

 

中图分类号:TP331;TG249.2   文献标志码A    DOI:10.15980/j.tzzz.2018.07.009

英文摘要

Study and Application of Local Squeeze Process-assisted HPDC for Improving Quality of Die Casting Part

Jia Zhixin1, Mao Jiejie1, Li Jiqiang1, Zhang Zhenglai2

(1.Ningbo Institute of Technology, Zhejiang University2. Zhejiang Huashuo Technology Co., Ltd.)

Abstract:Porosity defect is most formed likely in the die-casting parts with complex shape and uneven thickness. It is effective way to improving quality of die casting parts by local squeeze processassisted HPDC. The method and structure of local squeeze process was analyzed. The influence of four kinds of parameters for applying local squeeze process on die casting part quality was presented, including squeeze depth, pressure, squeezing delaied time and time of duration. Two castings produced by local squeeze processassisted HPDC were presented to verify the application effect.

Key Words:Die Casting, Local Squeeze Process, Shrinkage, Gas Hole

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