| SiO2活性剂对不锈钢钨极氩弧焊电弧现象的影响 |
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| 引用本文： | 吴军,邹增大,王新洪,李清明. SiO2活性剂对不锈钢钨极氩弧焊电弧现象的影响[J]. 焊接学报, 2007, 28(4): 85-88 |
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| 作者姓名： | 吴军 邹增大 王新洪 李清明 |
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| 作者单位： | 1. 山东大学,材料焊接研究中心,济南,250061;山东电力研究院,济南,250002
2. 山东大学,材料焊接研究中心,济南,250061 |
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| 摘 要： | 通过研究SiO2活性剂TIG焊焊接不锈钢过程中电弧形态、电弧电压及焊缝几何形状的变化,分析了SiO2活性剂钨极氩弧焊电弧等离子体形态、电弧空间电场强度、电弧温度、电弧电流密度及电弧力的影响.结果表明,SiO2活性剂使TIG焊电弧等离子体收缩,加热区域及电弧力更加集中,同时电弧空间电场强度、电弧温度及电流密度显著提高,导致焊缝几何形状变化,但焊道熔宽未发生明显变化.
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| 关 键 词： | TIG焊 电弧现象 活性剂 SiO2 活性剂 焊接不锈钢 钨极氩弧焊 电弧现象 影响 TIG welding electric activating flux 发生 熔宽 形状变化 焊缝几何形状 温度及 加热区域 体收缩 电弧等离子体 结果 电弧力 电流密度 电弧温度 |
| 文章编号： | 0253-360X（2007）04-085-04 |
| 收稿时间： | 2006-04-20 |
| 修稿时间： | 2006-04-20 |
Effect of activating flux on electric arc of TIG welding |
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| WU Jun,ZOU Zengd,WANG Xinhong and LI Qingming. Effect of activating flux on electric arc of TIG welding[J]. Transactions of The China Welding Institution, 2007, 28(4): 85-88 |
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| Authors: | WU Jun ZOU Zengd WANG Xinhong LI Qingming |
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| Affiliation: | Research Center of Advanced Materials, Shandong University, Jinan 250061, China;Shandong Electric Power Research Insititute, Jinan 250002, China,Research Center of Advanced Materials, Shandong University, Jinan 250061, China,Research Center of Advanced Materials, Shandong University, Jinan 250061, China and Research Center of Advanced Materials, Shandong University, Jinan 250061, China |
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| Abstract: | Based on investigation into the differences of arc shape,arc voltage and weld geometry between conventional TIG welding and activated TIG welding with activating flux SiO2,the effect of activating flux SiO2 on arc plasma shape,electric field intensity of arc space,arc temperature,arc current density and arc force were analyzed.The results indicated the activating flux SiO2 makes arc plasma contractive,heating zone and arc force of arc plasma much more concentrated.Meanwhile,the activating flux SiO2 drastically increases the electric field intensity,temperature and current density in arc space.As a result,the weld geometry is changed,but there are no great changes present in width. |
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| Keywords: | tungsten inert-gas welding electric arc phenomena activating flux SiO2 |
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