压铸铝合金熔炼过程中除渣及精炼除气的分析

王龙生; 薛东庆; 张庆昌

doi:10.15980/j.tzzz.2019.06.013

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压铸铝合金熔炼过程中除渣及精炼除气的分析
Analysis of Slag Removal and Degassing in Liquid Aluminum Smelting
2019年39卷第6期页码：630-634
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.06.013

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[1]王龙生,薛东庆,张庆昌.压铸铝合金熔炼过程中除渣及精炼除气的分析[J].特种铸造及有色合金,2019,39(06):630-634.

Wang Longsheng, Xue Dongqing, Zhang Qingchang. Analysis of Slag Removal and Degassing in Liquid Aluminum Smelting[J]. Special Casting & Nonferrous Alloys, 2019,39(6):630-634.
[1]王龙生,薛东庆,张庆昌.压铸铝合金熔炼过程中除渣及精炼除气的分析[J].特种铸造及有色合金,2019,39(06):630-634. DOI： 10.15980/j.tzzz.2019.06.013.

Wang Longsheng, Xue Dongqing, Zhang Qingchang. Analysis of Slag Removal and Degassing in Liquid Aluminum Smelting[J]. Special Casting & Nonferrous Alloys, 2019,39(6):630-634. DOI： 10.15980/j.tzzz.2019.06.013.

摘要

压铸铝合金熔炼是压铸生产过程中的一个重要工序

熔炼工艺控制不严

会造成Al液含渣量及含气量增多

并且会使化学成分产生变化

导致铸件产生针孔、氧化夹渣、缩松和化学成分不合格

影响铸件品质。通过对熔炼过程中熔炼前的新旧料配比

熔炼温度

Al液除渣净化、精炼除气等关键工序进行试验研究

确定合理的工艺范围

从而提供优质Al液

最终获得合格铸件。

Abstract

Die-casting aluminum alloy smelting is an important process in the process of die-casting production.The un-strictly control of smelting process would lead to the increase of slag content and gas content in liquid aluminum and chemical composition change

resulting in pinhole

oxidation slag inclusion

shrinkage porosity and unqualified chemical composition

and affecting the quality of the casting.The key processes such as the mixture of old and new materials before smelting

smelting temperature

smelting slag removal and purification of liquid aluminum

refining and degassing were analyzed and discussed

so as to determine a reasonable process range

providing high-quality liquid aluminum and obtaining qualified castings.