目前,H62黄铜焊料在钎头钎焊中的使用仍较广泛,然而,用普通中碳或低合金结构钢钎焊后缓冷或空冷工艺,又使钎头壳体机械性能欠佳,人们不得不对钎头壳体的几何结构及参数作一系列改变,用以解决钎头体的早期损坏问题。可是改变几何结构及参数的结果,又带来了排渣不畅、转动不灵等弊病,而使凿岩速度 At present, H62 brass solder is still widely used in brazing. However, slow brazing or air cooling after ordinary brazing with medium or low alloy structural steel results in poor mechanical performance of brazing head shell. People Have to make a series of changes to the geometry and parameters of the bit shell, to solve the early damage of the bit body. However, the result of changing the geometric structure and the parameters has brought the drawbacks of poor slagging, poor rotation, and the like,