Study on the effect of different brazing wires on the performance of MIG arc brazed joint

DAI Zhongchen; CHEN Fei; YUN Zhonghuang; ZHANG Hongkui

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Study on the effect of different brazing wires on the performance of MIG arc brazed joint
Vol. 48, Issue 3, Pages: 18-24(2018)
DOI：

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DAI Zhongchen, CHEN Fei, YUN Zhonghuang, et al. Study on the effect of different brazing wires on the performance of MIG arc brazed joint. [J]. 48(3):18-24(2018)
DOI：

DAI Zhongchen, CHEN Fei, YUN Zhonghuang, et al. Study on the effect of different brazing wires on the performance of MIG arc brazed joint. [J]. 48(3):18-24(2018) DOI：

摘要

采用手工MIG电弧钎焊工艺对SUS304不锈钢与Q355GNHD耐候钢异种薄板对接接头进行3种焊丝的对比试验。结果表明,Cu Si3钎料在SUS304不锈钢和Q355GNHD耐候钢上的润湿性最好,在SUS304不锈钢上的润湿系数为4.02,在Q355GNHD耐候钢上的润湿系数为3.62。Cu Al8钎料接头的外观成形好,缺陷较少。综合考虑,在焊接Q355GNHD耐候钢和SUS304不锈钢薄板异种钢接头时选用Cu Al8最为适宜。

Abstract

By using the manual MIG arc brazing,three kinds of brazing wires were tested for the butt joint of SUS304 stainless steel and Q355 GNHD weather resistant steel. The results showed that the wettability of Cu Si3 showed the highest value and the vaule was 4.02 on the SUS304 stainless steel and 3.62 on the Q355 GNHD weather resistant steel. The Cu Al8 brazed joints showed regular surface with lower defects. So the Cu Al8 wire is more suitable than the other two wires for brazing the two kinds of materials.

关键词

不锈钢耐候钢MIG电弧钎焊焊丝

Keywords

stainless steelweather resistant steelMIG arc brazingbrazing wire

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