药芯组成及工艺参数对ENiCrMo3T0-4焊丝电弧稳定性的影响  

Effect of flux-cored ingredients and welding parameters on arc stability of ENiCrMo3T0-4 wire

作　　者：王恒[1] 栗卓新[1] 李国栋[1] Wolfgang Tillmann Hee Jin Kim 

机构地区：[1]北京工业大学材料科学与工程学院,北京100124 [2]德国多特蒙德工业大学材料工程研究所,多特蒙德44227 [3]韩国工业技术研究院高级熔焊研究组

出　　处：《焊接学报》2017年第10期75-79,共5页Transactions of The China Welding Institution

基　　金：国家自然科学基金资助项目(51574011);北京市自然科学基金资助项目(2152008)

摘　　要：采用汉诺威弧焊质量分析仪研究了ENiCrMo3T0-4药芯焊丝中药芯组成及焊接工艺参数对电弧稳定性的影响.结果表明,随着焊丝药芯组成中CaO/(SiO_2+TiO_2)的减小,熔渣碱度越小,焊接电弧稳定性越好;相比电压标准差/电压变异系数、电流标准差/电流变异系数和燃弧时间变异系数,短路时间标准差/短路时间变异系数和燃弧时间标准差更能准确地反映焊接电弧稳定性;在正常焊接工艺参数范围内,随着工艺参数的增大,焊接电弧稳定性越来越好.The effect of flux-cored ingredients and welding parameters on arc stability of ENiCrMo3T0-4 flux-cored wires were investigated by Hanover Analyzer. It was found that with the ratio of CaO/( SiO_2+ TiO_2) decreased in flux-cored ingredients,the lower the basicity of melt slag were,the better the welding arc stability were. Compared with standard deviation of voltage and current,coefficient of voltage,current and burning time variability,standard deviation of short-circuiting and burning time,coefficient of short-circuiting time variability can reflect welding arc stability more accurately. In the range of normal welding process parameters,the arc stability became more stable with the welding parameters increase.

关 键 词：镍基药芯焊丝 药芯组成 工艺参数 电弧稳定性 

分 类 号：TG424[金属学及工艺—焊接]