Effect of one component active agent on welding process and appearance of weld in high speed MAG welding

LU Feng; LU Lihe; NI Cheng; YANG Zonghui

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Effect of one component active agent on welding process and appearance of weld in high speed MAG welding
Vol. 49, Issue 9, Pages: 1-5(2019)
Published：2019
DOI：
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DOI：

LU Feng, LU Lihe, NI Cheng, et al. Effect of one component active agent on welding process and appearance of weld in high speed MAG welding[J]. Eletric Welding Machine2019, 49(9): 1-5. DOI：

摘要

针对高速MAG焊焊缝成形差且容易产生驼峰焊道的问题

研究Fe

、Cr

、K

O和CaF

四种单组分活性剂对高速MAG焊电弧稳定性、熔滴过渡及焊缝成形的影响。结果表明

四种活性剂均能增加了高速MAG焊电弧稳定性和熔滴过渡频率

其中Cr

对应的焊接电弧最稳定

重燃弧电压降至约25 V

O对应的熔滴过渡频率最高

达到约110滴/s;Fe

、Cr

及K

O三种活性剂均显著增加了高速MAG焊焊缝熔深

并消除了1000mm/min高速MAG焊条件下的驼峰焊道现象。

Abstract

Based on the problem that the weld of high-speed MAG welding is poorly formed and easy to produce hump bead

the effects of four kinds of one component active agent

O and CaF

on the arc stability

metal transfer and appearance of weld of high-speed MAG welding are studied. The results show that four kinds of active agents can increase the arc stability and metal transfer frequency of high-speed MAG welding

among which Cr

corresponds to the most stable arc with reigning arc voltage drops to about 25 V

the K

O corresponds to the highest metal transfer frequency

reaching 110 droplets per second. The Fe

and K

O all significantly increase the penetration of high-speed MAG welding weld

optimize the surface appearance of weld

and eliminate hump bead under 1 000 mm/min high speed MAG welding condition.