Water wall tube bank wear-resistant welding wire, preparation method and CMT surfacing method

• Main Authors: YANG XIAOJIN, LU XIAOFEI, LIU FUGUANG, HU YINGJUN, LI RUITANG, BAI YUNING, WANG LIANG, HAN XINGGUANG, LIU GUOGANG, XU YOUHAI, LIN LUHONG, ZHANG ZHONGWEI, LIANG DING, LIU YU, WANG ZHONGYING, YAN JUNFENG
• Format: Patent
• Language: Chinese; English
• Published: 19.07.2024
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention discloses a water-cooled wall tube bundle wear-resistant welding wire, a preparation method and a CMT surfacing method.The water-cooled wall tube bundle wear-resistant welding wire comprises powder and welding skin, the powder comprises, by mass, 20.0%-25.0% of Cr, 10.0%-15.0% of Nb, 8.0%-12.0% of Ti, 6.0%-8.0% of V, 4.0%-6.0% of W, 1.2%-1.6% of C, 0.5%-0.8% of Mn, 0.5%-0.8% of Si and the balance Fe, and the sum of the mass percentages of the components is 100%. According to the welding wire, a Fe-Cr-C alloy system is designed, Nb, Ti, V and W strong carbide alloy elements are reasonably added, and a surfacing layer structure which takes martensite as a main part and generates multiple carbides in situ is designed. The welding wire is good in welding performance, small in splashing and good in high-temperature erosion resistance. 本发明公开了一种水冷壁管排耐磨焊丝、制备方法及CMT堆焊方法，所述水冷壁管排耐磨焊丝包括药粉和焊皮，其中药粉按质量百分比包括如下成分：Cr为20.0%~25.0%，Nb为10.0%~15.0%，Ti为8.0%~12.0%，V为6.0%~8.0%，W为4.0%~6.0%，C为1.2%~1.6%，Mn为0.5%~0.8%，Si为0.5%~