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汽车发动机的可靠性和寿命在很大程度上取决于缸套—压缩环摩擦副的工作性能。台架试验结果表明:标准压缩环与具有很高耐磨性的缸套配对工作时,腐蚀磨损比匹配标准缸套工作时大(图1)。研究表面强化处理缸套—压缩环摩擦副耐磨性的目的是为了得到一个最佳规范,以代替成批生产的价格较贵的缸套(镶尼列吉斯特铸铁)—镀铬环摩擦副。已研究出一种经不同方法强化处理的缸套—压缩环摩擦副。缸套用 CH24—44铸铁制成,压缩环用特种铸铁制成(3.7%C;
The reliability and life of a car engine depend largely on the performance of the cylinder liner-compression ring friction pair. The bench test results show that when the standard compression ring is paired with the cylinder liner with high wear resistance, the corrosion wear is larger than that when the standard cylinder liner is used (FIG. 1). The purpose of studying surface wear resistance of cylinder liner - compression ring friction pair is to obtain a best specification to replace batch production of the more expensive cylinder liner (Gillette Nicholas cast iron) - chrome ring friction pair . Has developed a different approach to strengthen the cylinder liner - compression ring friction pair. Cylinder liner made of CH24-44 cast iron, compression ring made of special cast iron (3.7% C;