WC-10Co超细晶硬质合金的注射成形工艺研究  

Study on Injection Molding Process of WC-10Co Ultrafine Grained Cemented Carbide

作　　者：尚峰[1,2] 付杰[3] 乔斌[1] 李化强[1] 曹振伟[3] 孙伟[1] 

机构地区：[1]淮海工学院机械工程学院,江苏连云港222005 [2]江苏省海洋资源开发研究院,江苏连云港222001 [3]中国矿业大学机电工程学院,江苏徐州221116

出　　处：《稀有金属与硬质合金》2017年第5期63-68,73,共7页Rare Metals and Cemented Carbides

基　　金：江苏省重点研发计划(产业前瞻与共性关键技术项目;BE2015100);江苏省大型工程装备检测与控制重点建设实验室开放课题(JSKLEDC201506);连云港市科技计划项目(产业前瞻与共性关键技术;CG1514)

摘　　要：研究了WC-10Co超细晶硬质合金注射成形过程的各种影响因素,优化了球磨、注射、脱脂和烧结工艺。结果表明:在1 440℃下真空烧结1.0h得到的注射成形WC-10Co超细晶硬质合金烧结件具有最好的性能,硬质合金晶粒度为0.465μm,密度为13.99g/cm^3,HRA硬度为90.1。Various factors influencing injection molding of WC-10Co ultrafine grained cemented carbide were studied. The processes of ball milling, injection, debinding and sintering were optimized. The results indicate that injection molding WC-10Co ultrafine grained cemented carbide sintered parts have the best performance after 1.0 h vacuum sintering at 1440 ℃ ,with cemented carbide grain size of 0. 465μm,density of 13.99 g/cm^3 and HRA hardness of 90.1.

关 键 词：超细晶硬质合金 WC-10Co 注射成形 脱脂 烧结 工艺 

分 类 号：TF125.3[冶金工程—粉末冶金]