Processing Optimization of Large Zn Based Alloy Bearing Bush

Gao Cunzhen1; Yang Dixin1; Xie Jingpei1; Wang Aiqin1; Wang Wenyan1

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Processing Optimization of Large Zn Based Alloy Bearing Bush
- role： First author 第一作者
- Affiliation：
  School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang,China
  Henan Key Laboratory of Advanced Non-ferrous Metals,Luoyang,China
Gao Cunzhen1
1 2 ,
- Affiliation：
  School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang,China
Yang Dixin1
1 ,
- Affiliation：
  School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang,China
Xie Jingpei1
1 ,
- Affiliation：
  School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang,China
Wang Aiqin1
1 ,
- Affiliation：
  School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang,China
Wang Wenyan1
1
Vol. 30, Issue 7, Pages: 617-620(2010)
Published： 2010 ，
DOI：

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[1]高存贞,杨涤心,谢敬佩,王爱琴,王文炎.大型高铝锌基合金轴瓦铸造工艺优化[J].特种铸造及有色合金,2010,30(07):617-620+583.

Gao Cunzhen1, Yang Dixin1, Xie Jingpei1, et al. Processing Optimization of Large Zn Based Alloy Bearing Bush. [J]. Special Casting & Nonferrous Alloys 30(7):617-620(2010)
[1]高存贞,杨涤心,谢敬佩,王爱琴,王文炎.大型高铝锌基合金轴瓦铸造工艺优化[J].特种铸造及有色合金,2010,30(07):617-620+583. DOI：

Gao Cunzhen1, Yang Dixin1, Xie Jingpei1, et al. Processing Optimization of Large Zn Based Alloy Bearing Bush. [J]. Special Casting & Nonferrous Alloys 30(7):617-620(2010) DOI：

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Abstract

Numerical simulation of temperature field in solidification process of large Zn based bearing bush was carried out to predict potential shrinkage porosities （holes） and its potential position in the parts and to understand effects of flow velocity of cooling water in permanent mold and cooling time on liquid phase solidification,temperature gradient distribution and shrinkage porosities （holes）.Based on simulated result,origination of shrinkage porosities （holes） occurred in the practical products was described.And the processing optimization was conducted.The practical production verifies that shrinkage porosities （holes） can be eliminated by setting chill at the bottom of water cooling permanent mold casting bearing bush to cool hot spot from the bottom and inner surface simultaneously.

transl

Keywords

high Al Zn Based Alloy; Solidification Simulation; Shrinkage Porosities （Hole）; ZA303

transl

摘要

利用华铸CAE/Inte2CAST10.0软件对大型锌基合金轴瓦铸件的温度场进行了凝固模拟

预测了缩孔、缩松倾向及出现位置

探讨金属型冷却水流速、冷却时间对凝固液相、温度梯度分布及缩孔、缩松的影响

在此基础上分析了实际铸造过程中缩孔、缩松缺陷产生的原因;并根据模拟结果对铸造工艺进行了优化。结果表明

在内腔采用水冷金属型的同时在轴瓦底部放置冷铁

从底部和内表面两个方向同时对热节进行冷却

可以达到消除轴瓦缩孔、缩松的目的。

Abstract

temperature gradient distribution and shrinkage porosities （holes）.Based on simulated result

origination of shrinkage porosities （holes） occurred in the practical products was described.And the processing optimization was conducted.The practical production verifies that shrinkage porosities （holes） can be eliminated by setting chill at the bottom of water cooling permanent mold casting bearing bush to cool hot spot from the bottom and inner surface simultaneously.

关键词

高铝锌合金凝固模拟缩孔、缩松ZA303

Keywords

high Al Zn Based AlloySolidification SimulationShrinkage Porosities （Hole）ZA303

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