铸造高速钢刀具的生产工艺及组织、性能的改善  

Development and Improvement of the Microstructure and Mechanical Properties of Cast High Speed Steel Tools

作　　者：李彦军[1] 何镇明[1] 姜启川[2] 赵宇光 

机构地区：[1]哈尔滨工业大学,150001 [2]吉林工业大学,长春130025

出　　处：《工具技术》1997年第6期7-10,共4页Tool Engineering

基　　金：国家自然科学基金

摘　　要：概述了铸造高速钢的生产工艺、发展过程以及铸造刀具的性能和应用情况。铸造高速钢存在的主要问题是组织中粗大的晶界网状并晶碳化物使铸造高速钢晶界脆化严重，韧性降低；改善的途径有孕育处理、变质及合金化、共晶碳化物的高温顶球化及电渣重熔等。Preduction technology, developments and problems of cast high speed steel as well as the mechanical properties and application of cast-to-shape tools are revicwed. The main problem restrichng the development of cast high speed steel is the coarse network eutectic carbide distributed on grain boundaries, which greatly decrease the toughness of cast high speed steel tools. It can be improved by inoculation, modification, alloying, high temperature prespheroidization and eletron slag remelting(ESR).

关 键 词：铸造高速钢刀具 组织 刀具 生产工艺 

分 类 号：TG711[金属学及工艺—刀具与模具]