摘要
采用增塑挤压工艺,以WC-3Co硬质合金为原料进行挤压成形.研究了粉末填充量、热脱粘工艺及真空烧结过程对材料性能的影响.当粉末填充量为62%时,经1470℃烧结90 min,材料的密度可达14.75 g/cm3,硬度(HRA)可达93.8.
WC-3Co cemented carbide was shaped by using extrusion molding in this paper. It was found that the parameters of extrusion molding such as powder loading,the processing of hot debonding and vacuum sintering influenced the properties of WC-3Co cemented carbide. High properties of WC-3Co cemented carbide with a density of 14.75g/cm^3 and a hardness of HRA 93.8 were obtained when sintered by vacuum sintering at 1470℃ for 90 minutes and the powder loading was up to 62%.
出处
《材料研究与应用》
CAS
2010年第1期56-59,共4页
Materials Research and Application
关键词
增塑挤压
粘结剂
真空脱粘
真空烧结
硬质合金
extrusion molding
binder
vacuum debonding
vacuum sintering
cementrd carbides
