日本金属学会誌

J. Japan Inst. Metals, Vol. 63, No. 1 (1999),
pp. 15-20

Examination of Radiation Power Emittedfrom Ar Torch Plasma as Function of Length

Toru Iwao, Takayuki Ishida, Tatsuya Hayashi,Takahiro Hirano, Masao Endo and Tsuginori Inaba

Department of Electric and Electronic Engineering, Chuo University, Bunkyo 112-855

Abstract:

Calculation of the radiation power emitted from Ar long plasmas produced by a torch has been carried out.
At first, the radial and axial temperature distributions in appearance plasmas have been calculated by using the measured electric field strength and photo-radius. Then, radiation power has been calculated by making use of the radiation power density of high-temperature Ar and then compared with the measured radiation power as a function of plasma length.


(Received July 27, 1998; In Final Form November 27, 1998)

Keywords:

arc, torch plasma, radiation power, plasma length


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