球磨机衬板用铬钼合金钢耐磨性的应用研究  

Research on wear-resistant properties of Cr-Mo alloy steel used for liner of ball mill

作　　者：杨银辉[1] 李志勋[2] 王长记 马小冲 

机构地区：[1]白银有色集团股份有限公司选矿公司,甘肃白银730900 [2]河南科技大学,河南洛阳471003

出　　处：《矿山机械》2015年第3期87-90,共4页Mining & Processing Equipment

摘　　要：设计了一种大型球磨机衬板用铬钼合金耐磨钢,并对该铬钼合金钢进行了磨料磨损性能测试。结果表明,通过适当的热处理工艺,铬钼合金钢硬度为54.2HRC,冲击韧性达到32.8 J/cm2,得到的组织为马氏体+残余奥氏体;SEM检测表明,在基体上弥散分布着细小(约为1μm)的碳化物颗粒,颗粒中含有Mo、V、Cr、Mn多种合金元素,对提高该铬钼合金钢的耐磨性有重要作用,同种环境下耐磨性为高锰钢的3.75倍。A kind of wear-resistant steel bearing chromium and molybdenum used for the liner of the large ball mill was prepared, and its abrasive wear properties were tested. The results indicated： after appropriate heat treatment, the hardness of the Mo-Cr alloy steel was 54.2HRC and its impact toughness reached 32.8 J/cm2, it consisted ofmartensite and retained austenite. SEM images showed： fine carbide particles whose size was about 1 μm spread on the matrix, the particles contained Mo, V, Cr and Mn, which was of importance for improving the wear-resistant properties of the Cr-Mo alloy steel. The wear-resistant properties of the alloy steel were 3.75 times of that of high manganese steel in the same operation mode.

关 键 词：球磨机衬板 铬钼合金钢 耐磨性 

分 类 号：TD453[矿业工程—矿山机电]