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分析了汽车发动机气阀座使用寿命不高的原因,介绍了气阀座材料现状及质量控制方法,并指出东风汽车公司研制的两类高性能烧结合金钢可为气阀座材料国产化打基础,其中的复合型合金钢生产成本下降50%,适用于多种类型发动机气阀座。
The reason why the service life of gas valve seat of automobile engine is not high is analyzed. The status quo of gas valve seat material and the quality control method are introduced. It is also pointed out that two types of high performance sintered alloy steel developed by Dongfeng Motor Company can lay the foundation for domestication of gas valve seat material , Of which composite alloy steel production costs decreased by 50% for a variety of engine valve seat.