金属型铸造薄壁复杂铝合金壳体件的缺陷分析及解决措施

冯睿; 黄放

doi:10.15980/j.tzzz.2012.10.013

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金属型铸造薄壁复杂铝合金壳体件的缺陷分析及解决措施
Analysis of the Defects in Power Steering Pump Shell and its Countermeasures
2012年32卷第10期页码：905-907
纸质出版日期： 2012 ，
DOI： 10.15980/j.tzzz.2012.10.013

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[1]冯睿,黄放.金属型铸造薄壁复杂铝合金壳体件的缺陷分析及解决措施[J].特种铸造及有色合金,2012,32(10):905-907.

Feng Rui, Huang Fang. Analysis of the Defects in Power Steering Pump Shell and its Countermeasures[J]. Special Casting & Nonferrous Alloys, 2012,32(10):905-907.
[1]冯睿,黄放.金属型铸造薄壁复杂铝合金壳体件的缺陷分析及解决措施[J].特种铸造及有色合金,2012,32(10):905-907. DOI： 10.15980/j.tzzz.2012.10.013.

Feng Rui, Huang Fang. Analysis of the Defects in Power Steering Pump Shell and its Countermeasures[J]. Special Casting & Nonferrous Alloys, 2012,32(10):905-907. DOI： 10.15980/j.tzzz.2012.10.013.

摘要

以有限差分法为理论分析工具

模拟轿车助力转向泵壳体铸造生产过程。根据模拟结果

分析铸造缺陷形成机理并提出解决方法

降低生产实际中的产品废品率。由模拟分析可见

此铸件的裹气、缩孔、缩松问题比较严重

这是由于此铸件的结构复杂、壁厚不均匀造成的。因此在此铸件的铸造生产过程中应格外重视浇注系统的设计

模具的排气及铸件的顺序凝固问题。

Abstract

Finite differential method was used to simulate the formation of power steering pump shell.Based on the simulated results

origination of the defects

such as entrapment-gas

shrinkage and so on

was analyzed

and countermeasures were presented to reduce mould-trial and mould-repair in practical production and to decrease the reject rate.The simulated results show that there exist serious entrapment-gas

shrinkage porosity（hole） in the castings

which is attributed to the complex structure of the castings with un-even wall-thickness.So the design of gating system

exhaustion of the mould and sequential solidification of the castings in process of casting should be paid attention to.