由于现代发动机设计面向转速,大功率强化方向发展,因而燃烧室的温度提高,增加了腐蚀因素,造成对进,排气门损坏严重的威协。所以对气门的耐热,耐腐蚀和耐磨性能提出更高的要求,就是我们所称的强化进排气门。为了提高进排气门的使用寿命和工作可靠性,除了对气门锥面和杆端进行堆焊,杆部对焊等效果较为突出外,另外采用以下一些措施也可少明显提高气门工作可靠性使用寿命。 As the modern engine design for speed, high-power enhanced direction, so the combustion chamber temperature increases, increasing the corrosion factor, resulting in serious damage to the inlet and exhaust Wei Association. Therefore, the valve heat resistance, corrosion resistance and wear resistance put forward higher requirements, that is what we call enhanced intake and exhaust. In order to improve the service life and reliability of intake and exhaust valves, in addition to the valve cone and the rod end of the welding, rod welding and other effects are more prominent, the other with some of the following measures can also significantly improve the reliability of the valve work Service life.