广州市柴油机厂、青岛内燃机厂、无锡柴油机厂等单位,用稀土球墨铸铁代替45号钢做柴油机的曲轴、连杆等零部件,为国家节省了大量优质钢材和锻压设备,提高了劳动生产率,降低了成本。广州市柴油机厂生产的6300型一千马力柴油机的九百公斤的曲轴,过去是用四吨重的锻坯锻 Guangzhou Diesel Engine Factory, Qingdao Internal Combustion Engine Factory, Wuxi Diesel Engine Factory and other units, instead of No. 45 steel made of rare earth nodular cast iron diesel engine crankshaft, connecting rods and other components for the country to save a lot of high-quality steel and forging equipment to improve labor productivity, Reduce costs. Guangzhou Diesel Engine Factory production of 6300 thousand horsepower diesel engine 900 kilograms of crankshaft, used to be four tons of forging billet forging