摘要
文章介绍了铝合金中气体和夹杂的形成原因、存在形式及铝熔体精炼的主要方法,研究制定了氮气氯气混合气体精炼的工艺参数,并与氮气精炼方法进行了对比试验。结果表明,采用氮气氯气混合气体精炼可将氢含量降至0.11 mL/100g Al、夹杂含量降至0.18 mm^(2)/kg,与氮气精炼方法相比提升效果显著,可满足汽车用铝合金型材的应用要求。
In this paper,the causes and forms of gases and inclusions in aluminum alloy and the main methods of refining aluminum melt are introduced.The technological parameters of nitrogen and chlorine gas refining are studied and compared with nitrogen refining methods.The results show that using a mixture of nitrogen and chlorine gas for refining can reduce the hydrogen content to 0.11 mL/100gAl and the inclusion content to 0.18 mm^(2)/kg.Compared with the nitrogen refining method,the improvement effect is significant and can meet the application requirements of aluminum alloy profiles for automobiles.
出处
《大众科技》
2023年第8期58-61,共4页
Popular Science & Technology
关键词
铝合金
精炼技术
氮气精炼
混合气体精炼
氢含量
aluminum alloy
refining technology
nitrogen refining
mixed gas refining
hydrogen content
