近三十年来,做为汽油发动机曲轴材料的高强度珠光体铸铁得到了广泛地应用。在许多情况下,这种材料也被用来制造小马力柴油发动机的曲轴。 以铸铁曲轴代替钢制曲轴,可以降低成本,减少机加余量(用铸铁件代替铸钢件时),节省轧材。然而,时至今日在载重汽车的大马力柴油机上和一些加力式汽油机上 For nearly three decades, high-strength pearlite cast iron used as a gasoline engine crankshaft material has been widely used. In many cases, this material is also used to make crankshafts for small horsepower diesel engines. Cast iron crankshaft instead of steel crankshaft, can reduce costs, reduce machining margin (with cast iron instead of steel castings), saving rolled material. However, on the high-powered diesel engines of trucks and some afterburner gasoline engines