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我矿YQ-150A潜孔钻机原用的钎头材质为40Cr,因40Cr钢材价格高,又较缺,我们改进了冲击器的设计,采用QT60/2球墨铸铁钎头。球铁钎头毛坯的成本每个12元,较原40Cr毛坯每个120元,大大降低了成本。 在制造球铁钎头开始时,我们用石英砂、酚醛树脂、酒精造型。但由于酚醛树脂材料缺,价格贵,又不易保管,影响了生产。后来,通过技术革新,改为用白泥、煤粉、机油代替酚醛树脂、酒精造型,光
I mine YQ-150A DTH drilling rig used for the original 40Cr bit material, 40Cr steel because of high prices, but also lacking, we improved the impactor design, the use of QT60 / 2 ductile iron bit. The cost of ductile drill blank each 12 yuan, compared with the original 40Cr rough each 120 yuan, greatly reducing costs. At the beginning of the manufacture of ductile iron head, we use quartz sand, phenolic resin, alcohol modeling. However, due to the lack of phenolic resin material, expensive, but also not easy to custody, affecting the production. Later, through technological innovation, instead of using white mud, coal, oil instead of phenolic resin, alcohol modeling, light