摘要
采用低压热等静压技术处理的矿山凿岩硬质合金得到无孔隙的组织结构，其抗弯强度值提高１０％～１５％，硬度ＨＲＡ提高０．１～０．７，密度值也明显提高。
The rock drilling cemented carbides treated by low pressure hot isostatic pressing (HIP) techniquehave been gained porous free structure, whose bending strength is raised ten to fifteen percent, hardness HRA is raised0.1～0.7, the density is also raised obviously. In addition drilling experiment carried out under 1.4～1.6 MPa pressurized air proved that the average drilling advance arries 738.6 m per bit in pegmatic granite, which is one to two times higher than that of the original bit used under the same condition.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
1997年第2期125-128,共4页
The Chinese Journal of Nonferrous Metals
关键词
硬质合金
矿山
凿岩机
低压热等静压
真空烧结
cemented carbide rock drilling low pressure hot isostatic pressing(HIP)
