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汽车发动机凸轮轴是通过与气门挺座的接触来控制气门开闭的重要零件。它最终失效主要是摩擦磨损。因此,选用合适的耐磨材料是提高凸轮轴使用寿命的重要途径。Q692发动机凸轮轴过去一直采用18CrMnTi 圆钢车削成型(圆钢毛坯重12kg,成品仅为4kg),并经渗碳淬火处理。选用这种材料,生产成本高,材料利用率低。工艺过程复杂,生产周期长,使用中容易磨损。从磨损的机理来看,提高材料抗塑性变形的能力,如采用耐热的低塑性材料来制造受磨零件,无疑可以
Automotive Engine Camshaft is an important part that controls valve opening and closing through contact with valve seat. It eventually failed mainly friction and wear. Therefore, the choice of suitable wear-resistant materials is an important way to improve the service life of camshafts. Q692 engine camshafts have been used 18CrMnTi round bar turning shape (round billet weight 12kg, finished product is only 4kg), and after carburizing and quenching. Use this material, high production costs, low material utilization. Complex process, long production cycle, easy to wear in use. From the wear mechanism point of view, improve the ability of materials resistant to plastic deformation, such as the use of heat-resistant plastic materials to manufacture low-wear parts, no doubt