电解铝阳极导杆铝-钢相位摩擦焊工艺及力学性能

王希靖; 李经纬; 张昌青; 孙学敏

电解铝阳极导杆铝-钢相位摩擦焊工艺及力学性能

兰州理工大学有色金属先进加工与再利用省部共建国家重点试验室, 兰州 730050

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出版历程
- 收稿日期: 2014-01-14

Phase friction welding of aluminum to steel for electrolytic aluminum anode guide rod

State Key Lab of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou 730050, China

摘要

摘要: 传统的电解铝预焙槽阳极导杆采用爆炸焊块作为过渡实现铝导杆与阳极钢爪的连接. 针对130 mm×130 mm×2 420 mm方铝导杆和端面165 mm×210 mm的铸钢爪,采用相位摩擦焊技术进行焊接,替代原用爆炸块复合焊接的方式,实现自动化生产并达到节能降耗的目的. 通过不同工艺参数的试验研究如:摩擦时间、转速、先顶后刹时间、顶锻压力的改变,通过接头力学拉伸试验、冲击试验、显微组织分析得到了最优工艺参数. 结果表明,最优工艺方法下可得到致密的焊缝组织以及动态再结晶完善的热影响区组织,接头表现出最优的综合力学性能,满足工业生产要求.
- 电解铝阳极导杆 /
- 相位摩擦焊 /
- 铝-钢异种金属 /
- 工艺 /
- 力学性能
Abstract: Traditional pre-baked anode aluminum electrolytic cell anode rod was made with explosion welded piece as the transitional connection. In this paper, phase friction welding was used to connect 130 mm×130 mm×2 420 mm aluminum guide bar and 165 mm×210 mm cast steel claw, replacing the method of using explosive welded piece, to realize automation production, save energy and reduce consumption. The parameters were optimized by matching friction time, rotational speed, advanced upsetting time and pressure. Tensile test, impact test, and microstructure analysis were conducted. The results show that solid microstructure in weld zone and heat-affected zone could be obtained with optimized parameters. And the resultant joints with optimal comprehensive mechanical properties could satisfy the requirements of industrial production.
- anode guide rod in aluminum electrolysis /
- phase friction welding /
- aluminum and steel dissimilar metals /
- welding technology /
- mechanical property

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参考文献(5)

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