再生A356铝合金生产工艺及性能研究

葛素静; 刘永昌; 叶珍; 鲁园园; 毛贻国; 孙芳芳; 苑高利; 霍臣明; 马朝利

doi:10.15980/j.tzzz.2022.04.011

研究·合金工艺 | 浏览量 : 0 下载量: 139 CSCD: 0

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再生A356铝合金生产工艺及性能研究
Production Process and Performance of Recycled A356 Aluminum Alloy
2022年42卷第4期页码：450-454
纸质出版日期： 2022 ，
DOI： 10.15980/j.tzzz.2022.04.011

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葛素静, 刘永昌, 叶珍, 等. 再生A356铝合金生产工艺及性能研究[J]. 特种铸造及有色合金, 2022,42(4):450-454.

Ge Sujing, Liu Yongchang, Ye Zhen, et al. Production Process and Performance of Recycled A356 Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2022,42(4):450-454.
葛素静, 刘永昌, 叶珍, 等. 再生A356铝合金生产工艺及性能研究[J]. 特种铸造及有色合金, 2022,42(4):450-454. DOI： 10.15980/j.tzzz.2022.04.011.

Ge Sujing, Liu Yongchang, Ye Zhen, et al. Production Process and Performance of Recycled A356 Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2022,42(4):450-454. DOI： 10.15980/j.tzzz.2022.04.011.

摘要

以再生铝生产A356合金全工艺流程为研究对象，对合金成分调整、微合金化、精炼除渣等关键工艺进行优化，并对处理后的合金铸造性能、微观组织及力学性能进行评估。结果发现，经优化工艺处理后，再生A356铝合金中夹杂物含量较低、含Fe相形貌主要为短棒状，使用再生铝生产的A356合金铸造性能、拉伸性能和旋转弯曲疲劳性能与电解铝生产的A356合金性能相差不大，再生铝可以替代电解铝原材料生产A356合金，降低能源消耗。

Abstract

Taking recycled aluminum A356 alloy ingots as object

main processes such as compositional adjustment

micro-alloying as well as refining and deslagging were optimized

and the casting performance

microstructure and mechanical properties of treated alloy were evaluated. The results indicate that impurity content in recycled A356 aluminum alloy is relatively low and the morphology of the iron-containing phase presents mainly rod-like structure after the optimization treatment. The casting

tensile and rotary-bending fatigue properties of A356 alloy produced by recycled Al show little difference from those produced by electrolytic aluminum. The results reveal that the recycled Al is able to replace the electrolytic Al in producing A356 alloy

thus reducing energy consumption.