烧结工艺对D152mm YG6两面顶锤使用寿命的影响  

Effects of Sintering Process on the Service Life of the D152mm YG6 Double-faced Anvils

作　　者：李先容[1] 杨少青[1] 徐俊[1] 李强[1] 

机构地区：[1]中国工程物理研究院,四川绵阳621900

出　　处：《稀有金属与硬质合金》2010年第4期37-39,51,共4页Rare Metals and Cemented Carbides

摘　　要：采用排水法、SEM、EDS、三点弯曲法等研究了烧结温度与时间对D152mm YG6硬质合金两面顶锤轴向烧结密度分布、微观组织、硬度及抗弯强度的影响,实际考核了顶锤的使用寿命。结果表明:两面顶锤采用YG6合金,在烧结温度1 390℃下真空烧结6 h,可以获得WC晶粒细小、WC/WC晶粒邻接度较低、平均寿命达2 408次的D152mm两面顶锤。Impact of sintering temperature and time on the axial density distribution,microstructure,hardness and bending strength of D152 mm YG6 cemented carbide double-faced anvils were studied by drainage method,SEM,EDS and three point bending.The service life of the double-faced anvil was tested by experiment.The results show that the D152 mm double-faced anvil,prepared by vacuum sintering at 1 390 ℃ for 6 h with YG6 alloy,has fine WC grains,low grain adjacency degree between WC and WC,and an average service life of 2 408 times.

关 键 词：YG6两面顶锤 冷等静压 烧结温度 保温时间 使用寿命 

分 类 号：TF124.53[冶金工程—粉末冶金]