我矿采场目前主要凿岩是采用 YG80凿岩机,使用的是φ32中孔钎杆联接打中深孔的,该机扭矩大,凿岩效率高,多为全国矿山广泛采用。但在使用中发现钎杆断折量太大,钎杆与联接套之间漏水也较严重。据统计断折量占总量的50%。由于钎杆两端淬火硬度高,修旧时必须退火后方能重车螺纹,制造过程中,工序多,劳动强度大,材料来沅困难而消耗量 At present, the main rock drilling mine is YG80 rock drilling machine, the use of φ32 hole in the drill hole in the drilling, the machine torque, drilling efficiency, mostly used widely in the country’s mines. However, in use, it is found that the broken amount of the drill rod is too large, and the water leakage between the drill rod and the joint sleeve is also serious. According to the statistical breakage accounted for 50% of the total. Due to the high hardness quenching both ends of the drill rod, repair must be annealed before the heavy truck thread, the manufacturing process, the process and more labor-intensive materials to the Yuan difficulties and consumption