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要提高发动机使用寿命和润滑汕低烧耗的稳定性,大多取决于活塞环的耐磨性。虽然,当《扭曲》型下压缩环不强化时,上压缩环的耐磨性通常可以借助镀层来保证,但是由于镀铬层剥落,因而试图靠这些环镀铬来保持工作锐边必需的形状是困难的。因此,对于压缩环试用表面处理工艺是合适的。 到目前为止,强化铸铁活塞环所采用的能保证细分散淬火组织的热处理方法,导致了活塞环在加热时其本身的弹性损失。当金属的热透深度最小时,用激光辐射进行的表面强化就有得到强化层的可能性。因此,可以采用这种方法来强化活塞环。在汽车制造业中,采用激
To improve the service life of the engine and lubricate the Shanyao low burnout stability, mostly depends on the wear resistance of the piston ring. Although the wear resistance of the upper compression ring can usually be ensured by means of a coating when the “twisted” type lower compression ring is not reinforced, it is difficult to attempt to maintain the shape necessary for working sharp edges by the chrome plating due to the peeling of the chrome layer of. Therefore, a compression ring trial surface treatment process is suitable. So far, the heat treatment methods used to reinforce cast iron piston rings to ensure finely dispersed quenched structures have resulted in the piston itself losing its elasticity when heated. Surface hardening with laser radiation has the potential to obtain a strengthened layer when the heat penetration depth of the metal is minimized. Therefore, this method can be used to strengthen the piston ring. In the automotive industry, the use of shock