高速钢低温淬火在牙轮钻头上的应用  

Application of Low Temperature Quenching of High Speed Tool Steel on Blast Hole Rock Bits

作　　者：从善海[1] 邱玲慧[1] 

机构地区：[1]武汉科技大学材料冶金学院,湖北武汉430081

出　　处：《矿山机械》2001年第6期23-24,共2页Mining & Processing Equipment

摘　　要：高速钢制作矿用牙轮钻头轴承系统的衬套，普遍存在破裂现象，通过低温淬火和优化工艺参数，韧性大幅度提高，工业试验的破裂率由传统的９０％～９６％下降到７％～１３％，钻头穿孔米道提高了１７％。The fracture phenomenon generally occurs in the bushing mall from high speed tool steel on the beating system of blast hole rock bits. There is a big increase in toughness through low temperature quenching and optimum seeking parameter, the industry test shows that the rate of fracture will be reduced from 90%-96% to 7%-13% and drilling meters increased by 17%.

关 键 词：高速钢 矿用牙轮钻头 轴承系统 衬套 热处理 低温淬火 

分 类 号：P634[天文地球—地质矿产勘探]