药芯焊丝电弧焊熔滴过渡与焊接飞溅.pdf

第43卷第4期 重珲俄 V01．43N。．4 ∞13年4月 Electric Weldi雄Machine Apr．2013 药芯焊丝电弧焊熔滴过渡与焊接飞溅 王燕 (三峡大学机械与材料学院材料工程研究所，湖北宜昌443002) 了拍照，并对焊接飞溅进行了测量，研究药芯焊丝电弧焊的熔滴过渡行为及其焊接飞溅的基本规律。 试验结果表明：三种药芯焊丝随着焊接参数的增大，均依次发生短路过渡、欠滴排斥过渡和细颗粒过渡。 药芯焊丝出现细颗粒过渡的焊接参数比其他两种焊丝大。焊接工艺参数以及焊丝种类影响了熔滴过渡行 为进而影响焊接飞溅，细颗粒过渡时产生的飞溅最小。 关键词：药芯焊丝电孤焊；焊接参数；熔滴过渡；飞溅 。 中图分类号：TG42 文献标识码：A 2，i．issn．100l一2303．2013．04．23 DOI：lO．751 Researchonmetaltransferand offluxcoredarc weldingspatter welding WANGYall ofMechanicalandMaterial Three (MaterialEngineeringInstitute，College GorgesUniversity， Engineering，China Yichang443002，China) transferbehaviorof and fluxcoredwire was and Abstract：Metal SQJ501、SQJ507SQJ50MX weldingphotographedweldingspatter wasmeasured．BasiclawofFCAWmetaltransferand WaSstudied．Theresultsshowthatthemodeofmetaltransfer weldingspatter fromshortcircuittransferinto transferandthenintosmall transferasthe increase． changes globularrepelled drop weldingparameters Arc of and cone．Arc of bell whichsmall shapeSQJ’501 SQJ50MXpresents shapeSQJ507presentsshape．Weldingparameters drop transferof fluxcoredwire afe than and andwire influencemetal SQJ507 appearsbiggerSQJ501SQJ50MX．Weldingparameterstypes transferandfurthermoreinfluence ofsmall transferisminimum． weldingspatter．Theweldingspatter drop coredarc words：flux transfer；spatter