铝合金圆铸锭竖直半连续铸造技术的发展  

Development of vertical DC casting technology for aluminum alloy round ingot

作　　者：朱庆丰 程龙[1,2] 王睿 赵志浩 左玉波 崔建忠 ZHU Qing-feng;CHENG Long;WANG Rui;ZHAO Zhi-hao;ZUO Yu-bo;CUI Jian-zhong(Key Lab of Electromagnetic Processing of Materials Ministry of Education,Northeastern University,Shenyang 110819,China;Collegeof MaterialsScienceand Engineering,NortheasternUniversity,Shenyang 110819,China;Engineering Research Center of Advanced Materials Preparing Technology,Ministry of Education Shenyang 110819,China)

机构地区：[1]东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳110819 [2]东北大学材料科学与工程学院,辽宁沈阳110819 [3]东北大学材料先进制备技术教育部工程研究中心,辽宁沈阳110819

出　　处：《轻合金加工技术》2022年第6期1-12,20,共13页Light Alloy Fabrication Technology

基　　金：中央高校基本科研业务费资助项目(N2109007);辽宁省自然科学基金资助项目(2019-KF-05-0);国家自然科学基金资助项目(51674078,51374067)。

摘　　要：2021年我国铝合金挤压材和锻件合计产量为2 224万t,生产这些产品的坯料多为半连续铸造(Direct-Chill casting, DC铸造)的铝合金圆铸锭。DC铸造是铝合金生产的关键环节,锭坯的冶金质量和成品率直接决定最终产品的质量和成品率。介绍了铝合金圆锭竖直DC铸造技术的原理、发展历程、最新的发展动态和前景,梳理了我国铝合金DC铸造技术的应用现状,分析了我国企业在铝合金DC铸造技术领域与国外企业存在的差距及形成差距的内在原因,并为提高我国铝合金DC铸造技术水平、消除与国外企业的差距提出了合理化建议。The total amount of extruded and forged aluminum alloy in 2021 was about 22.24 million tons in China. Most of them were produced by aluminum alloy round ingots cast by direct-chill(DC) casting technology. DC casting is of great significance in the aluminum alloy manufacturing process, and it can be a determinant of the metallurgical quality and the yield of final products. The exposition covers technological principle, process development, the latest progress, and prospects, and the application in China of vertical DC casting. The existing gaps in aluminum alloy DC casting technology between Chinese enterprises and foreign enterprises have been analyzed and corresponding reasons have been pointed out. The reasonable suggestions have also been given to improve aluminum alloy DC casting technology and close the gap with foreign enterprises.

关 键 词：铝合金 半连续铸造:冶金质量 成品率 发展动态 

分 类 号：TG292[金属学及工艺—铸造]