在高锰钢焊条药皮中加入一定比例的稀土元素,具有细化晶粒,提高塑性、韧性及强度,改善组织形态,净化焊缝金属的作用,从而有效地降低了高锰钢焊接时在熔合区产生热裂纹的敏感性.对于高锰钢的修补、堆焊及构件之间的强度焊接均优于不含稀土元素的同类焊接材料. Adding a certain proportion of rare earth elements in the coating of the high manganese steel electrode has the functions of refining the grain, improving the plasticity, toughness and strength, improving the tissue morphology and purifying the weld metal, thereby effectively reducing the welding time of the high manganese steel during Fusion zone susceptibility to thermal cracking.For high manganese steel repair, surfacing and welding strength between components are better than the same type of rare earth-free welding materials.