Title:
ANODE FOR HEATING SHIFT TYPE PLASMA
Document Type and Number:
Japanese Patent JP2001167873
Kind Code:
A
Abstract:
To provide an anode for heating a shift type plasma with a means of retarding the melt loss rate of a leading end to prolong the lifetime.
In a shift type plasma torch in which direct current is energized to heat melted metal in a container, and Ar plasma is generated while heating the melted metal, the shift type plasma torch comprises an electrode made of conductor metal having inner water cooling structure, a metallic protection body having inner water cooling structure provided at a distance from outside of the anode, and a means for supplying as containing Ar to gaps between the anode and the protection body, wherein a protrusion is provided at a central portion at the end of the cooling structure of the anode.
Inventors:
KAWACHI TAKESHI
YAMAMURA KAZUTO
MITAKE HIROYUKI
KINOSHITA JUNICHI
IMANAGA KATSUHIRO
TOKI MASAHIRO
KIMURA YOSHIAKI
YAMAMURA KAZUTO
MITAKE HIROYUKI
KINOSHITA JUNICHI
IMANAGA KATSUHIRO
TOKI MASAHIRO
KIMURA YOSHIAKI
Application Number:
JP35377399A
Publication Date:
June 22, 2001
Filing Date:
December 13, 1999
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
B22D11/10; H05B7/06; H05B7/08; H05B7/12; H05B7/18; H05H1/34; (IPC1-7): H05B7/12; B22D11/10; H05B7/06; H05H1/34
Attorney, Agent or Firm:
Spring Inoue (1 person outside)
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