Title:
LOCAL TREATMENT DEVICE FOR METAL SURFACE BY VACUUM ARC
Document Type and Number:
Japanese Patent JP3308871
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce a heat load for a local vacuum chamber and simultaneously to facilitate vacuum arc start in a local treatment for a metal surface by vacuum arc.
SOLUTION: In a metal surface treatment device by vacuum arc consisting of an electrode, a vacuum container, an arc power source and an exhauster, the electrode 4 is incorporated within the vacuum container, the cut-like vacuum container having sealing materials 7 in a skirt part 8 in order to hold adhesion with a member 1 to be treated is used, and an air gap is provided between a ceramics enclosure which encloses an inside wall of the vacuum container with ceramics 10 and the skirt part 8 of the vacuum chamber. Further, the inner wall of ceramics to be used is coated with a thin conductive film and a spring is attached to the backside of ceramics 10 so that such a force as pushing ceramics 10 forward acts on ceramics 10 if necessary.
Inventors:
Koichi Takeda
Toshiharu Kikuchi
Toshiharu Kikuchi
Application Number:
JP24665497A
Publication Date:
July 29, 2002
Filing Date:
September 11, 1997
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B23H1/00; B21B45/06; C21D1/773; C21D1/82; C23F4/00; C23G5/00; (IPC1-7): B21B45/06; B23H1/00; C21D1/773; C21D1/82; C23F4/00; C23G5/00
Domestic Patent References:
| JP4110084A | ||||
| JP57134559A |
Attorney, Agent or Firm:
Tomoyuki Yathata (1 outside)
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