论文部分内容阅读
分析了康明斯６ＢＴ发动机的工作条件及影响气门／阀座摩擦副的主要因素，研制了硅铬ＸＢ合金、半可锻铸铁、高铬加铜铸铁三种材质的阀座圈，通过发动机热机强化试验，优选出了使用性能、经济性、生产便利性俱佳的方案，确定了康明斯发动机维修用气门座圈的材质及技术条件。
The working conditions of Cummins 6BT engine and the main factors that affect the valve / seat friction pairs were analyzed. The valve seat rings made of silicon chromium XB alloy, semi-malleable cast iron and high chromium plus copper cast iron were developed. By the engine heat engine strengthening test, Out of the use of performance, economy, production convenience and superb program to determine the Cummins engine repair valve seat material and technical conditions.