【摘要】 分析了液压凿岩机冲击活塞的受力状态与性能要求 ,选择国产合金钢 30CrNi2MoV进行渗碳、淬火和回火处理 ,研制出替代进口的冲击活塞 ,其使用性能达到或超过国外同类产品 ,为制造高寿命液压凿岩机冲击活塞提供了一种新的方法更多还原

【Abstract】 The loading state and performance of hydraulic hammer drill’s impact piston were discussed. A homebred alloy steel by carburization, quencher and temper was used, with the substitution of the impact piston for importing. The performance of the alloy exceeded the same kind products from abroad, leading a technological way to prolong the service life of the hydraulic hammer drill’s impact piston.更多还原