Analysis of Low Pressure Casting Large Aluminum Alloy Shell

Zhao Youwei; Zhao Yihong; Zheng Zhiwei; Hao Weijin; Jiang Miaomiao; Chen Qianyu

doi:10.15980/j.tzzz.2016.11.011

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Analysis of Low Pressure Casting Large Aluminum Alloy Shell
Vol. 36, Issue 11, Pages: 1160-1162(2016)
Published： 2016 ，
DOI： 10.15980/j.tzzz.2016.11.011

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[1]赵有伟,赵毅红,郑志伟,郝维进,姜苗苗,陈倩钰.铝合金罐体低压铸造工艺研究与分析[J].特种铸造及有色合金,2016,36(11):1160-1162.

Zhao Youwei, Zhao Yihong, Zheng Zhiwei, et al. Analysis of Low Pressure Casting Large Aluminum Alloy Shell. [J]. Special Casting & Nonferrous Alloys 36(11):1160-1162(2016)
[1]赵有伟,赵毅红,郑志伟,郝维进,姜苗苗,陈倩钰.铝合金罐体低压铸造工艺研究与分析[J].特种铸造及有色合金,2016,36(11):1160-1162. DOI： 10.15980/j.tzzz.2016.11.011.

Zhao Youwei, Zhao Yihong, Zheng Zhiwei, et al. Analysis of Low Pressure Casting Large Aluminum Alloy Shell. [J]. Special Casting & Nonferrous Alloys 36(11):1160-1162(2016) DOI： 10.15980/j.tzzz.2016.11.011.

摘要

大型铝合金罐体由于体积大、结构复杂、凝固时间长

浇注时容易出现缩孔、缩松等缺陷。通过ProCAST软件对罐体铸造过程流场和温度场进行模拟分析

预测缺陷形成的区域。根据模拟结果

在产生缺陷区域安放冷铁能起到强制冷却作用

改善了铸件的温度场

使铸件符合顺序凝固的原则

有效地消除了铸件的缩松缺陷

经X射线检测合格。

Abstract

Due to the large aluminum shell with large volume

complicated structure and long solidification time

it is easy to generate casting defects

such as shrinkage cavity and shrinkage porosity.The flow field and temperature field in pouring process were simulated by the ProCAST software to visualize the potential defect position.Based on the simulated results

chills were placed at the defective area to play a strong cooling forced

which could improve the temperature field of the casting and make the castings conform to the principle of sequential solidification

eliminating effectively the shrinkage in the casting and predicting the ogenerated defect region

so the quality of the qualified rate was improved.The product is qualified by X-ray detection.