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一、概况硬质合金钎头主要应用于矿山工程的采掘、石油开采、国防工程及其它需要凿岩掘进的行业。据统计,全国矿山采掘每年需硬质合金约1200t,(包括潜孔钎头和牙轮钻头),占全国硬质合金年产量的三分之一,耗用资金约2亿元。近十年来,随着我国钎头用硬质合金的质量不断提高,新牌号相继问世。对矿山工作人员来说,只有了解凿岩用硬质合金各牌号的性能与适用范围,并正确地选择和合理使用,就能提高采掘速度,延长钎头寿命,降低凿岩成本。
I. Overview Carbide drill bit is mainly used in mining engineering, mining, petroleum exploitation, national defense projects and other needs drilling. According to statistics, about 120 tons of cemented carbide are required each year in mining mines in the country (including downhole drill bits and roller cone bits), accounting for one-third of the annual output of cemented carbide in China and consuming about 200 million yuan of funds. In the past ten years, with the continuous improvement of the quality of brazing alloys for brazing in China, new grades have come out in succession. For mine workers, only by understanding the performance and application range of each grade of the hard alloy for drilling, and properly selecting and using them rationally, the mining speed can be increased, the life of the drill bit can be extended, and the drilling cost can be reduced.