【摘要】 介绍了纳米级硬质合金国内外研究现状、制备工艺和性质 ,对纳米级硬质合金WC Co能弥补钻探切削具中硬质合金的不良现象 ,提高凿岩效率和钻头寿命进行了探讨。展望了纳米级硬质合金和纳米级胎体 金刚石复合材料在钻探中的应用前景。更多还原

【Abstract】 The research manufacturing technique and properties of nano-crystalline WC-Co powder at home and abroad is introduced.The nano-crystalline WC-Co materials can increase the efficiency of drilling and the service life of cutting tools.The application of nano-crystalline WC-Co powder and nano-crystalline diamond composite material to the drilling is forecasted.更多还原