鑽粒鑽进若按使用的磨料性质分类,大体可分为鋼砂鑽进和铁砂鑽进两种。目前应用最广泛的是铁砂缵进,从很多资料中可以得出这样的结论:改进铁砂的质量可以提高鑽进效率。因此提高铁砂质量是很重要的问题,就像合金鑽进中提高硬质合金的机械强度,以及改良镶焊方法一样。这里将有关方面的问题提供同志们参考。一、热处理普通铁砂所要达到的目的 Drilling into the drill according to the nature of the abrasive used, can be roughly divided into two kinds of steel sand drilling and iron and sand drilling. At present, the most widely used is iron sand intrusion. From many sources it can be concluded that improving the quality of iron sand can improve drilling efficiency. Therefore, it is an important issue to improve the quality of iron sand, just as the mechanical strength of cemented carbide in alloy drilling is improved, and the method of insert welding is improved. Here we will provide comrades with reference to relevant issues. First, the purpose of heat treatment ordinary iron sand