轧辊堆焊技术是轧钢厂降低辊耗,提高轧机作业率,增加产品产量、改善质量、降低生产成本的一项有效的技术措施。本文在吸收国外先进经验的基础上,研制了新型的热轧辊耐磨堆焊材料H25Cr3Mo2MnVA弥散硬化钢焊丝。该焊丝具有良好的焊接性,其堆焊层具有较高的抗热磨损、抗热疲劳性能及良好的加工性能,是一种较为理想的热开坯轧辊堆焊材料。 Roll surfacing technology is a rolling mill to reduce roll consumption, increase rolling mill operating rate, increase product yield, improve quality, reduce production costs is an effective technical measure. Based on the absorption of advanced foreign experience, this paper developed a new type of H25Cr3Mo2MnVA dispersion-hardened steel wire with wear-resistant surfacing material. The welding wire has good weldability, and the surfacing layer has high heat-resisting wear resistance, thermal fatigue resistance and good processing property, and is an ideal hot billet roll surfacing material.