目前,钢轮由于强度和硬度较低,在使用过程中普遍发生轮缘和踏面严重磨耗、踏面擦伤、剥离和辗堆现象,使车轮镟修次数增加,使用寿命降低。铸钢轮一般运用10～20万公里镟削一次,经过4～8次镟削就要报废更换。为了节约钢材和劳动力,以及提高运输效率,锦州车轮修理厂和铁道科学研究院协作,对 At present, due to the lower strength and hardness of the steel drum, serious wear of the rim and tread, tread galling, peeling and rubbing generally occur during use, resulting in an increase in the number of wheel repairs and a decrease in service life. Cast steel wheels generally use 10 to 200,000 km 镟 cut once, after 4 to 8 times 镟 cut scrapped replacement. In order to save steel and labor, as well as improve transport efficiency, Jinzhou Wheel Repair Factory and the Academy of Railway Science collaboration, right