| A-TIG焊熔池流体流动形态的测试 |
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| 引用本文： | 张瑞华,尹燕,樊丁,陈磊.A-TIG焊熔池流体流动形态的测试[J].电焊机,2008,38(12). |
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| 作者姓名： | 张瑞华 尹燕 樊丁 陈磊 |
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| 作者单位： | 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,甘肃,兰州,730050 |
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| 基金项目： | 教育部春晖汁划资助项目
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教育部博士点专项基金资助项目
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| 摘 要： | 为了验证A-TIG焊时的熔池流场计算结果,利用自行研制的活性剂FS12对不锈钢A-TIG焊时熔池流体流动变化进行了测试.利用高熔点双薄钨板挡住熔池流体流动的方法试验,对比焊缝中钨板周围钨颗粒的分布,从而对流体流动的方向进行试验验证.试验结果表明:无活性剂时钨颗粒在焊缝中心浓度比较小,而在焊缝边缘浓度比较大,钨板外侧浓度最大.证实了熔池流体流动是从中心流向边缘.有活性剂时的钨颗粒在焊缝边缘浓度比较小,焊缝中心的浓度比较大,而熔池底部浓度最大.证实了熔池流体流动是从边缘流向中心.通过以上试验说明,活性剂的加入改变了熔池流体流动的方向,使用活性剂FS12后强烈的熔池流体向内对流是A-TIG焊时熔深增加的根本原因.
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| 关 键 词： | A-FIG焊 熔池 流场 测试 |
Test of fluid flow forming in A-TIG welding pool |
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| ZHANG Rui-hua,YIN Yan,FAN Ding,CHEN Lei.Test of fluid flow forming in A-TIG welding pool[J].Electric Welding Machine,2008,38(12). |
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| Authors: | ZHANG Rui-hua YIN Yan FAN Ding CHEN Lei |
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| Affiliation: | ZHANG Rui-hua,YIN Yan,FAN Ding,CHEN Lei(State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials,Lanzhou University of Technology,Lanzhou 730050,China) |
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| Abstract: | The effects of activating flux FS12 on the change of fluid flow direction in welding pool were investigated to validate the simulation results of A-TIG welding.By using two pieces of thin tungsten plate blocking the fluid flow in welding pool,welding was performed on specimens of SUS304 stainless steel coated with flux FS12 and tungsten particle.The distribution of tungsten particle was measured.The results show that when there was no flux,the concentration of tungsten particle were less in the middle of we... |
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| Keywords: | A-TIG welding welding pool fluid flow test |
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