Countermeasures for Improving Mechanical Properties of Shell Castings with Large Section

Xiao Wenfeng; Zhou Guozhu; Su Yanqing

doi:10.15980/j.tzzz.2014.06.005

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Countermeasures for Improving Mechanical Properties of Shell Castings with Large Section
Vol. 34, Issue 6, Pages: 577-579(2014)
Published： 2014 ，
DOI： 10.15980/j.tzzz.2014.06.005

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[1]肖文丰,周国柱,苏彦庆.提高ZL114A壳体铸件厚大部位力学性能的措施[J].特种铸造及有色合金,2014,34(06):577-579.

Xiao Wenfeng, Zhou Guozhu, Su Yanqing. Countermeasures for Improving Mechanical Properties of Shell Castings with Large Section. [J]. Special Casting & Nonferrous Alloys 34(6):577-579(2014)
[1]肖文丰,周国柱,苏彦庆.提高ZL114A壳体铸件厚大部位力学性能的措施[J].特种铸造及有色合金,2014,34(06):577-579. DOI： 10.15980/j.tzzz.2014.06.005.

Xiao Wenfeng, Zhou Guozhu, Su Yanqing. Countermeasures for Improving Mechanical Properties of Shell Castings with Large Section. [J]. Special Casting & Nonferrous Alloys 34(6):577-579(2014) DOI： 10.15980/j.tzzz.2014.06.005.

摘要

介绍了ZL114A合金复杂壳体铸件的铸造工艺

对比分析了壁厚差异对力学性能的影响。结果表明

厚大部位力学性能明显偏低

不能满足设计要求。通过增加厚大部位冷却速度的方法

大幅度提高了厚大部位的力学性能

尤其是伸长率

由2.9%增加到了5.3%。

Abstract

The casting process of ZL114Aalloy complicated shell was described.The mechanical properties of the typical parts with different wall thickness were analyzed.The results show that the mechanical properties of large section in parts are greatly lower than those in thin section parts

which can’t meet the design requirements.By increasing the cooling rate of the large section part

the mechanical properties are improved greatly

especially the elongation increased to 5.3%from 2.9%.