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GUO He-ping, QIAN Yi-yu, FANG Hong-yuan, GUO De-lun, WU Xi-meng. Spectral Characteristics of High Current Hollow Cathode VacuumArc[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2002, (2): 89-91.
Citation: GUO He-ping, QIAN Yi-yu, FANG Hong-yuan, GUO De-lun, WU Xi-meng. Spectral Characteristics of High Current Hollow Cathode VacuumArc[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2002, (2): 89-91.
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Spectral Characteristics of High Current Hollow Cathode VacuumArc

  • 1.

    National Key laboratory of Advanced Welding Production Technology, Harbin Institute Technology, Harbin 150001, China

  • 2.

    National Key laboratory of Advanced Welding Production Technology, Harbin Institute Technology, Harbin 150001, China

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  • Received Date: August 10, 2001
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  • On the condition of 100 A welding current the frequency of optical emission from argon plasma in a hollow cathode has been recorded as 200~1 000 nm with water cooled copper anode.Spatial distribution (along the arc length) of hollow cathode vacuum arc spectrum is also given.The observed spectra shows that strong Ar Ⅰ and Ar Ⅱ lines are superimposed on a weak continuum.Large amounts of Ar Ⅱ spectral lines apppear in the region of 350~510 nm,which results in a blue hollow cathode vacuum arc.All the results indicate that the spectral line can be used to analyze the mass and energy transfer in hollow cathode vacuum arc welding plasma arc.
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