用矛盾论的观点与方法，分析论述了硬质合金制造与使用过程中的矛盾运动。
Contradiction movement in cemented carbide has been analysed and discussed with viewpoint and method of contradiction in the paper.
用碳化钨钢结硬质合金制造螺纹钢丝轧辊，通过选用适当的合金牌号及热处理工艺，可显著提高轧辊的使用寿命。
The service life of screw steel wire rollers can be remarkably raised by using WC steel bonded carbide and suitable heat treatment technology.
简要地介绍了以镍基合金为粘结相的新型矿山凿岩硬质合金的制造工艺、制品性能以及使用效果考核情况。
Production technology, properties of products and application effects of a new type of cemented carbide with Ni-base binder for drilling tools are introduced briefly.
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