Tri-arc双丝电弧焊堆焊工艺研究  

Study on the tri-arc double wire arc surfacing technology

作　　者：张杰[1] 王军[1] 牟立婷 庄明辉[1] 李少农 李慕勤[1] 马振[1] 

机构地区：[1]佳木斯大学材料科学与工程学院,黑龙江佳木斯154007 [2]佳木斯大学药学院,黑龙江佳木斯154007 [3]深圳瑞凌实业股份有限公司,广东深圳518000

出　　处：《电焊机》2017年第7期61-64,共4页Electric Welding Machine

基　　金：黑龙江省普通本科高等学校青年创新人才培养计划(UNPYSCT-2016203);佳木斯大学与深圳瑞凌实业股份有限公司合作项目(RI-YF-15012701);黑龙江省大学生创新创业训练计划项目(201610222113)

摘　　要：采用三电弧双丝电弧焊,利用耐磨堆焊Fe-Cr-C-B系药芯焊丝作双丝,在Q235钢表面制备不同焊接工艺参数堆焊层,分析堆焊层熔合比、组织结构及耐磨性。结果表明:三电弧双丝药芯电弧焊堆焊可在较大范围调整焊接参数,获得较小的焊缝熔深、较低稀释率和较高的熔敷效率,耐磨性优异;当三电弧电流为150 A、电压30 V、焊丝伸出长度15 mm、送丝速度6 m/min、脉冲频率70 Hz时,堆焊层熔合比为0.07,堆焊层HRC为65,磨损量最小,耐磨性优良。The surfacing layers with different welding parameters are prepared on the surface of Q235 steel by adopting tri-arc double wire arc surfacing and taking wear-resistant surfacing Fe-Cr-C-B series flux-cored wire as double wire,the penetration ratio, mierostructure and wear resistance of the surfacing layer are analyzed. The results show that the welding parameters of tri-arc double wire arc surfacing can be adjusted in a wide range,the smaller weld penetration,low dilution rate,higher deposition efficiency and good abrasive resistance are received. When tri-arc current is 150 A,vohage is 30 V,wire extension length is 15 mm,wire feed rate is 6 m·min^-1 and pulse frequency is 70 Hz,the fusion ratio of surfacing layer is 0.07,surfacing layer for HRC is 65,abrasion loss is the minimum and wear resistance is excellent.

关 键 词：三电弧双丝电弧焊 堆焊 熔合比 耐磨性 

分 类 号：TG455[金属学及工艺—焊接]