内燃机活塞环采用传统的热处理方法,其效果不够理想。一般的热处理只能使活塞环整体显著地强化。但是,对处于重负荷条件下工作的活塞环表层来说,这样的强化显然是不够的。目前正努力寻求解决这个问题的方法,已试用的有十几种。然而,内燃机活塞环表面强化主要是采用镀铬。这种方法虽然 Internal combustion engine piston rings using traditional heat treatment methods, the effect is not satisfactory. General heat treatment can only make the whole piston ring significantly strengthened. However, this reinforcement is obviously not enough for the piston ring surface under heavy load conditions. There are dozens of ways to try and find solutions to this problem. However, the internal combustion engine piston ring surface is mainly reinforced with chrome. Although this method