简介概要

矿山凿岩硬质合金低压热等静压处理

来源期刊:中国有色金属在线1997年第2期

论文作者:杨碧华 周建华 欧应龙

文章页码:125 - 128

关键词:硬质合金 矿山凿岩 低压热等静压

Key words:cemented carbide rock drilling low-pressure hot isostatic pressing(HIP)

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。现场高风压凿岩试验表明其使用寿命较未经处理的同类合金提高了1~2倍。

Abstract: The rock drilling cemented carbides treated by low-pressure hot isostatic pressing (HIP) technique have been gained porous-free structure, whose bending strength is raised ten to fifteen percent, hardness HRA is raised 0.1~0.7, the density is also raised obviousl y. 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.

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