稀土高铬铸铁锤头研究及应用

来源期刊：有色金属2011年第2期

论文作者：张胜全 张整社 王希靖

文章页码：136 - 141

关键词：稀土高铬铸铁； 高温腐蚀； 高温磨损

Key words：Re high-Cr cast iron hammer； high temperature corrosion； high temperature wear

摘    要：铝电解的过程中,打壳锤头在高温环境中工作,主要受到高温电解液的高温腐蚀、壳及氧化铝的磨损,使锤头失效,而起主导作用的是高温腐蚀。对两种材料锤头失效的分析,确定了材料的洁净程度对高温腐蚀影响。通过对不同材料进行实验室高温腐蚀及高温磨损试验,确定了在此工矿条件下最优的材料为稀土高铬铸铁,经小型试验、中试和工业应用,取得了良好的效果。

Abstract: During the process of aluminum electrolysis,the sheller hammer works in a heating environment.It fails mainly because of the corrosion at high temperature and the abrasion caused by the shell and aluminum oxide,especially the high-temperature corrosion.Thanks to the failure analysis of the hammers made of two different kinds of materials,it is certain that the cleanness of materials plays a great impact on the high-temperature corrosion.By high-temperature corrosion and abrasion test on different materials in laboratory,Re high-Cr cast iron is confirmed to be the best material in such working conditions.Good results have been achieved after small experiments,pilot tests and industrial applications.