柴油机气门座孔热处理工艺研究  

The Study on Heat Treatment of Valve Hole of Diesel Cylinder-head

作　　者：强智臻[1] 马冰[1] 熊毕伟[1] 周海涛[1] 

机构地区：[1]中国北方发动机研究所,天津300405

出　　处：《内燃机》2013年第4期28-29,共2页Internal Combustion Engines

摘　　要：柴油机采用无气门座圈结构后,为实现气门-气门座孔摩擦副硬度匹配合理,采用激光表面淬火工艺,通过对激光功率、扫描速度、保护气量等参数的合理调整。最终使气门座孔锥面硬度满足了气门-气门座孔摩擦副要求。When non-valve-seat structure was applied on cylinder-head, to make the matching hardness of valve and valve hole rational, a process of laser quenching was adopted to adjust rationally parameters for modification of power, velocity anti protected gas. Finally, the c, onical surface hardness for valve-seat bore meets the requirements of valve-valve-seat bore frictional pair.

关 键 词：气门座孔 硬度 激光淬火 

分 类 号：TK426[动力工程及工程热物理—动力机械及工程]