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凿岩机连杆材料的改进滕州龙山花岗石厂张维峰龙山花岗石厂所用的ＹＮ３０Ａ型内燃凿岩机具有工作效率高，携带方便，使用灵活，起动快等优点，在花岗岩开矿钻孔中受到操作者的欢迎。但在多年的使用过程中，存在连杆容易断裂的问题，使生产效率受到影响，同时连杆的更换又...
Rock drill rod material improvement Tengzhou Longshan granite plant Zhangwei Feng Longshan granite plant used in YN30A internal combustion rock drill with high efficiency, easy to carry, flexible, fast start, etc., in the granite mining drilling by the operator welcome. However, during many years of use, there is a problem that the connecting rod is easily broken, so that the production efficiency is affected. At the same time, the connecting rod is replaced ...