药芯焊丝稳定性分析与评价  

Analysis and evaluation of stability of flux-cored wire

作　　者：戴军[1] 王宝[1] 高俊华[1] 

机构地区：[1]中北大学焊接材料技术培训中心,山西太原030051

出　　处：《电焊机》2007年第3期75-77,共3页Electric Welding Machine

摘　　要：利用汉诺威弧焊质量分析仪对不同批次的五种药芯焊丝进行电弧物理特性参数测试,发现不同批次的同种焊丝焊接平均电流、短路大电流概率和平均短路时间等电弧物理参数存在着不同程度的波动,说明药芯焊丝普遍存在着不稳定现象。提出采用短路大电流概率和的变异系数s[∑n(Is)]、大于1ms的平均短路时间的变异系数s[t(T1)]作为判据,在实际生产中监测药芯焊丝的稳定性。This paper use Analysator Hannover to test the arc physical characteristic parameters in different batches of five kinds of flux-cored wire,finding that average current,short-circuit high-current probability sum and average short-circuit time in the different batches of the same welding wire take different extent fluctuation.It instruct that flux-cored wire have instability phenomena by adopting coefficient of variation of short-circuit high-current probability sum and coefficient of variation of greater than 1 ms average short-circuit time as criterion ,we can detect the stability of flux-cored wire in actual production.

关 键 词：汉诺威弧焊质量分析仪 药芯焊丝 焊接电弧物理 

分 类 号：TG422.3[金属学及工艺—焊接] TG403