Properties of Mass and Heat Transfer for Tube Cathode Arcs
Properties of Mass and Heat Transfer for Tube Cathode Arcs
复制标题
管阴极电弧的传质和传热特性
DOI：
10.2207/qjjws.25.3
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Y. Yamazaki
中科院分区：
文献类型：
--
作者：
S. Tashiro;Manabu Tanaka;Mitsuyoshi Nakatani;Michitaka Furubayashi;Y. Yamazaki
由于钨极惰性气体(TIG)电弧能够产生高能量密度的电弧等离子体，特别适合于需要将输入的热集中在一点上的过程作为热源。另一方面，作为TIG的一种，管状阴极电弧(TCA)通过管状阴极的中心孔引入保护气体来产生电弧等离子体。本文对大气压下Ar-TCA的基本热源特性进行了数值分析，并与常规TIG电弧的热源特性进行了比较。结果发现，TCA通过控制内保护气体的流量，能够均匀地加热靶材，因此适用于钎焊或堆焊等工艺。此外，由于电流密度较低，TCA对母材的电弧压力仅为TIG的30%，有望实现高速焊接。
Since Tungsten Inert Gas (TIG) arc enables to produce arc plasma with high energy density, it is suitable as a heat source especially for processes to require concentrating the heat input at a point. On the other hand, Tube Cathode Arc (TCA) to be a kind of TIG produces the arc plasma by introducing shielding gas through the central hole of the tube cathode. In the present paper, basic heat source property of argon TCA at the atmospheric pressure was numerically analyzed and compared with that for the conventional TIG arc. As a result, it was found that TCA is suitable for processes such as brazing or buildup, since it enables to heat a target material uniformly by controlling inner shielding gas flow rate. Furthermore, TCA is expected to realize high-speed welding because the arc pressure to a base metal reaches only 30% of TIG due to lower current density.
影响因子：
3.4
作者：
Tanaka, M;Ushio, M;Kagebayashi, Y
通讯作者：
Kagebayashi, Y