Application of High Vacuum Technology in Die-Casting Vehicle Transmission Housing

Zhao Weihong; Su Haizhang; Huang Zhiyuan; Zhang Yulong

doi:10.15980/j.tzzz.2018.05.014

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Application of High Vacuum Technology in Die-Casting Vehicle Transmission Housing
Vol. 38, Issue 5, Pages: 514-516(2018)
Published： 2018 ，
DOI： 10.15980/j.tzzz.2018.05.014

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[1]赵卫红,苏海章,黄志垣,张玉龙.高真空压铸技术在汽车变速箱壳体中的应用[J].特种铸造及有色合金,2018,38(05):514-516.

Zhao Weihong, Su Haizhang, Huang Zhiyuan, et al. Application of High Vacuum Technology in Die-Casting Vehicle Transmission Housing. [J]. Special Casting & Nonferrous Alloys 38(5):514-516(2018)
[1]赵卫红,苏海章,黄志垣,张玉龙.高真空压铸技术在汽车变速箱壳体中的应用[J].特种铸造及有色合金,2018,38(05):514-516. DOI： 10.15980/j.tzzz.2018.05.014.

Zhao Weihong, Su Haizhang, Huang Zhiyuan, et al. Application of High Vacuum Technology in Die-Casting Vehicle Transmission Housing. [J]. Special Casting & Nonferrous Alloys 38(5):514-516(2018) DOI： 10.15980/j.tzzz.2018.05.014.

摘要

以变速箱壳体压铸生产中的缺陷为研究对象

采用高真空压铸技术

改善了铸件的内部气孔状态和力学性能。对比发现

使用高真空压铸工艺后

压铸件的油道漏气率大幅降低

合格率达到97%

降低了成本。高真空压铸件的抗拉强度和伸长率分别比普通真空铸件提高了约17.4%和37.1%。

Abstract

The defects in die-casting transmission housing were investigated

and the internal porosity condition and mechanical properties of the transmission housing were improved by applying high vacuum die-casting technology.The results reveal that the gas leakage rate of the oil passages is reduced greatly after using high vacuum technology

and the yield rate is increased to 97%

decreasing greatly cost.Compared with those of conventional vacuum castings

the tensile strength and elongation of high vacuum castings are increased by 17.4% and 37.1%

respectively.