摘要
通过在普通高Ni-Cr铸铁中加入元素V和Nb以及进行回火处理,在基体中结晶出均匀弥散分布的细小耐磨粒子,使轧辊外层及芯部的石墨变得细小圆整,外层碳化物均匀分散,辊身表面硬度﹑硬度落差、辊颈抗拉强度等力学性能指标均满足轧辊的使用要求。
By adding vanadium and niobium into ordinary high Ni-Cr cast iron and tempering treatment, there were small wear resistant particles crystallizing out and distributing unitbrmly and dispersedly in the matrix; the graphite in both the outer layer and core area of the roll became smaller and more rounded; carbides distribution in outer layer became more uniformly and dispersedly. As a result, the meehanical properties of the roll such as the surface hardness, hardness drop, tensile strength of the roll neck and so on eompletely reached the requirement of application.
出处
《现代铸铁》
CAS
2008年第4期69-73,共5页
Modern Cast Iron
关键词
改进型轧辊
耐磨粒子
碳化物
improved roll
wear resistant particles
carbide
