激光熔覆技术在高锰钢辙叉生产上的应用

Application of Laser Cladding in Manufacturing of High Manganese Steel Frog

为提高高锰钢辙叉运营初期的表面硬度和耐磨性,采用在其有害空间附近的心轨和翼轨表面预置纳米碳化物陶瓷复合粉末涂层材料,然后对其进行激光熔覆处理。在其基体表面形成厚度约为0.3mm的超细化、高强韧性、高耐磨的熔覆层。使高锰钢辙叉在上道运营初期的磨耗量大副降低,降低了工务人员对其维护保养的劳动强度,使高锰钢辙叉的通过量大幅提高。

In order to improve the surface hardness and wear-resistace of the high manganese steel flog in the early operating days, the Nano-scale carbide and cermet composite powder coating were pre-laid on the surface of point and wing rail around the open throat, then be cladded by laser to form a 0.3ram thick cladding with over high strength and toughness and high wear resistance. It largely reduced the abrasion wear value of high manganese steel and the working strength of maintenace workers, and increased the running ability of the high manganese steel flog.