[1]张 平,汪 虎,吴 健.MgO对碱性气保护药芯焊丝熔滴过渡行为的影响[J].焊管,2008,31(2):27-30.[doi:1001－3938（2008）02－0027－04]
　ZHANG Ping,WANG Hu,WU Jian.Effects of MgO on Droplet Transfer Formations of Flux Cored Wire[J].,2008,31(2):27-30.[doi:1001－3938（2008）02－0027－04]
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MgO对碱性气保护药芯焊丝熔滴过渡行为的影响
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
31
期数:
2008年第2期
页码:
27-30
栏目:
试验与研究
出版日期:
2008-03-28

文章信息/Info

Title:
Effects of MgO on Droplet Transfer Formations of Flux Cored Wire
文章编号:
1001－3938（2008）02－0027－04
作者:
张 平; 汪 虎; 吴 健
（南京航空航天大学 材料科学与技术学院）
Author(s):
ZHANG Ping; WANG Hu; WU Jian
关键词:
MgO; 药芯焊丝; 熔滴过渡; 飞溅
Keywords:
flux cored wire; droplet transfer; welding spatter
分类号:
TG422.3
DOI:
1001－3938（2008）02－0027－04
文献标志码:
A
摘要:
为了改善碱性气保护药芯焊丝的焊接工艺性能，采用了高速摄影、水中收集熔滴、焊接飞溅测试等试验方法，研究了渣系组分中MgO对药芯焊丝熔滴过渡行为以及焊接飞溅大小的影响规律。结果表明，随着MgO含量的增加，药芯焊丝的熔滴质量比减小，熔滴过渡由细颗粒过渡逐渐变为大颗粒排斥过渡。当w(MgO)＜25%时，熔滴颗粒相对细小，过渡平稳，焊接飞溅较小；当w(MgO)＞25%时，随其含量进一步增加，熔滴颗粒变得粗大，熔滴呈现非轴向排斥过渡，且焊接飞溅较大。
Abstract:
In order to improve the processing property of flux cored wire,the effect of MgO on droplet transfer formations of flux cored wire and welding spatter were investigated by high speed photography,collecting droplets in a water through and test of spatter.The results showed: With the increased content of MgO,the quality ratio of droplets was reduced and the mode of metal transfer changed from small drop transfer into globular repelled transfer gradually. When MgO was less than 25%,the droplet transfer was steady with relatively small molten droplets and welding spatter was smaller.When MgO was more than 25%,the metal transfer turned into globular repelled transfer and welding spatter became great.

参考文献/References:

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备注/Memo

备注/Memo:
张平（1983－），男，南京航空航天大学材料科学与技术学院硕士研究生，主要从事气体保护药芯焊丝焊接工艺性能方面的研究。收稿日期：2007－09－21
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