不锈钢药芯焊丝中铁粉/长石对焊接烟尘中Cr(Ⅵ)的影响

白建涛; 栗卓新; 李杨; WOLFGANGTillmann

不锈钢药芯焊丝中铁粉/长石对焊接烟尘中Cr(Ⅵ)的影响

1.
北京工业大学材料科学与工程学院, 北京 100124
2.
菲拉克焊接江苏有限公司, 常州 312245
3.
多特蒙德工业大学材料工程研究所, 多特蒙德德国 24427

基金项目: 国家自然科学基金资助项目(51275008);北京市自然科学基金资助项目(2152008)

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- 收稿日期: 2013-09-12

Investigation on influence of iron/feld spar in flux cored wire for stainless steel on hexavalent chromium in welding fume

1.
School of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
2.
The FILARC Welding(Jiangsu)Co., Ltd., Changzhou 312245, China
3.
Institute of Materials Engineering, Dortmund University of Technology, Dortmund 24427, Germany

摘要

摘要: 采用汉诺威电弧质量分析仪、高速摄像机和激光粒度仪等研究了不锈钢药芯焊丝中铁粉/长石比对不锈钢药芯焊丝电弧稳定性、焊接烟尘平均颗粒尺寸、烟尘中Cr(Ⅵ)含量及其生成率.结果表明,短路过渡生成的焊接烟尘平均颗粒尺寸比粒状过渡小,烟尘中Cr(Ⅵ)/总Cr(n/N)的比值大;在同一焊接参数下,当药芯中铁粉/长石比例在1.8时,短路过渡时间最短为1033μs,焊接电弧稳定、焊接烟尘颗粒平均尺寸为1154 nm, Cr(Ⅵ)的含量及Cr(Ⅵ)/总Cr(n/N)的比最小,分别为1555.8 mg/kg和24%.
- 六价铬 /
- 电弧稳定性 /
- 焊接烟尘尺寸
Abstract: The influence of iron powder/feldspar on the arc stability, average particle size, Cr (Ⅵ) content and Cr(Ⅵ)/total Cr(n/N)were investigated by hanover arc analyzer, high-speed cameras and laser particle sizer. The experimental results showed that average particle size of welding fume inshort circuit transfer is smaller than the granular transfer;The proportion of Cr(Ⅵ)/total Cr(n/N) is low in welding fume of short circuit transition.Under the same welding parameters, welding fumes average particle size is up to 1154 nm, Cr (Ⅵ) and Cr (Ⅵ)/total Cr are 24% and 1555.8 mg/kg respectively when iron powder/feldspar is around 1.8, under which the shortest short transition time is 1033μs.
- Cr(Ⅵ) /
- arc stability /
- size of welding fume

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参考文献(9)

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不锈钢药芯焊丝中铁粉/长石对焊接烟尘中Cr(Ⅵ)的影响

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出版历程

Investigation on influence of iron/feld spar in flux cored wire for stainless steel on hexavalent chromium in welding fume

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