Study on Gas-Tungsten-Arc Electrode

气体钨极电弧电极的研究

• 批准号: 60460207
• 负责人: USHIO MASAO
• 金额: $ 4.67万
• 依托单位: Osaka University, Welding Research Institute
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60460207/
• 关键词: Tungsten Electrode; Arc Discharge; Gas-Tungsten-Arc; GTA Welding; Oxide Electrode Arc Welding; TIG welding

A comparative study has been made of characteristics of gas-tungsten-arc (GTA) cathodes, consisting of tungsten mixed with a small quantity of La-, Y-, Ce-, Th, Mg-oxides respectively and pure-tungsten. Arc starting characteristics, arc pressure, electrode consumption, change in shape due to heavy loading and incompleteness of inert gas shielding, and electrode temperature are compared in D.C.E.N. porarity, and it is shown the superiority of La-oxide, Y-oxide and Ce-oxide electrodes in those characteristics. Electrodes containing two of these three kinds of oxides are also examined and it is shown those electrodes have very superior properties similarly. Direct observation of cathode tip by microscope during arc burning is carried out and important phenomena concerning the formation of tungsten "rim" at the periphery of cathode area, which governs the stability of arc, studied. Copper coverd electrode is produced and it is shown the ability of supression of consumption of tungsten in the Argon-Oxygen mixed gas.

对比研究了钨分别掺入少量La、Y、Ce、Th、Mg氧化物的气体钨弧阴极与纯钨阴极的性能。从引弧特性、引弧压力、电极消耗、重负荷和惰性气体保护不完全引起的形状变化、电极温度等方面进行了比较，指出了氧化镧、氧化Y和氧化Ce电极在这些特性上的优越性。含有这三种氧化物中的两种的电极也被测试，结果表明这三种氧化物中的两种同样具有非常优异的性能。对电弧燃烧过程中的阴极尖端进行了显微镜直接观察，研究了决定电弧稳定性的阴极区边缘钨“边”形成的重要现象。制作了铜包焊条，并证明了其对氩氧混合气体中钨的消耗具有抑制作用。

项目成果

F. MATSUDA , M. USHIO and T. KUMAGAI: "Study on Gas-Tungsten-Arc Electrode (Report 1)" Transactions of JWRI. 15. 13-19 (1986)

F. MATSUDA、M. USHIO 和 T. KUMAGAI：“气体钨弧电极研究（报告 1）” JWRI 交易。

M.USHIO;F.MATSUDA: Proc.CHINA-JAPAN〔Harbin Institute of Tech and Univ.Tokyo〕Symposium on Materials Science,Harbin,China. 132-140 (1986)

M.USHIO;F.MATSUDA: Proc.CHINA-JAPAN〔哈尔滨工业大学和东京大学〕材料科学研讨会，哈尔滨，中国。

M.USHIO;F.MATSUDA: IIW Doc.212-648-86. (1986)

M.USHIO；F.MATSUDA：IIW Doc.212-648-86。

F. MATSUDA, M. USHIO and H. FUJII: "Gas-Tungsten-Arc Electrode (Report 2)" Transaction of JWRI. 15. 179-182 (1986)

F. MATSUDA、M. USHIO 和 H. FUJII：“Gas-Tungsten-Arc Electrode（报告 2）”JWRI 交易。

F.MATSUDA;M.USHIO;T.KUMAGAI: Transactions of JWRI. 15. 13-19 (1986)

F.MATSUDA；M.USHIO；T.KUMAGAI：JWRI 的交易。