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1．气门头厚度对气门座磨损的影响气门头厚度h(见图1)是保证气门头刚度、耐磨度和减少变形、烧蚀的重要参数。磨气门时若磨量不一致,会引起气门和气门座过早磨损及变形、烧蚀。若气门头厚度不够,受工作压力冲击后,会产生弹性变形,负荷减少后,气门头又将恢复原状。所以,气门在工作中不断发生弹性变形,每一工作循环重复一次,磨损率较非弹性变形大得多。
1. Valve head thickness on the impact of valve seat wear Valve head thickness h (see Figure 1) is to ensure that the valve head stiffness, wear resistance and reduce deformation, ablation of the important parameters. Abrasion valve if the amount of inconsistent grinding, valve and valve seat will cause premature wear and deformation, ablation. If the valve head thickness is not enough, by the impact of the working pressure, it will have elastic deformation, the load decreases, the valve head will be restored to its original state. Therefore, the valve constantly in the work of elastic deformation, repeated once each work cycle, the wear rate is much larger than the inelastic deformation.