缸盖罩高真空压铸工艺与普通排气块压铸工艺分析

安肇勇; 黄志垣; 陆淳佳

doi:10.15980/j.tzzz.2019.12.010

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缸盖罩高真空压铸工艺与普通排气块压铸工艺分析
Defects Analysis of Die-casting of the Cylinder Head Cover Aluminum Alloy by High Vacuum and Common Venting Block Process
2019年39卷第12期页码：1312-1315
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.12.010

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[1]安肇勇,黄志垣,陆淳佳.缸盖罩高真空压铸工艺与普通排气块压铸工艺分析[J].特种铸造及有色合金,2019,39(12):1312-1315.

An Zhaoyong, Huang zhiyuan, Lu Chunjia. Defects Analysis of Die-casting of the Cylinder Head Cover Aluminum Alloy by High Vacuum and Common Venting Block Process[J]. Special Casting & Nonferrous Alloys, 2019,39(12):1312-1315.
[1]安肇勇,黄志垣,陆淳佳.缸盖罩高真空压铸工艺与普通排气块压铸工艺分析[J].特种铸造及有色合金,2019,39(12):1312-1315. DOI： 10.15980/j.tzzz.2019.12.010.

An Zhaoyong, Huang zhiyuan, Lu Chunjia. Defects Analysis of Die-casting of the Cylinder Head Cover Aluminum Alloy by High Vacuum and Common Venting Block Process[J]. Special Casting & Nonferrous Alloys, 2019,39(12):1312-1315. DOI： 10.15980/j.tzzz.2019.12.010.

摘要

缸盖罩外壳产品经过几代的集成和更新后

其压铸工艺变得较为复杂

缺陷种类及位置分布也更为分散。为了减少铸件缺陷

开发前期应用数值模拟

准确地了解铝液流动充型状态与铸件缺陷的分布

缩短了模具的开发周期。压铸开发阶段对缸盖罩铸件分别采用高真空压铸和普通排气块工艺进行试生产

通过对铸件品质的分析

发现高真空压铸工艺可以在压铸速度与铸造压力都较低的情况下获得合格的铸件。

Abstract

Shell as a part of the engine cylinder head cover

after several generations of product integration and update

its die casting technology has become more complex

so the defect types and location distribution are more dispersed. In order to reduce defects in the production and manufacture process

at the early stage of the development

numerical simulation method was applied to understand accurately the aluminum liquid filling state and the distribution of the casting defects

greatly shortening the mold development cycle. Cylinder head cover shell parts were trial-produced with high vacuum die casting technology and common die casting. Through analyzing casting quality

it is found that the high vacuum die casting can produce the qualified cylinder head cover at the lower injection velocity and pressure.