Title:
ELECTRODE PLATE FOR ELECTRIC UPSETTER
Document Type and Number:
Japanese Patent JP3481815
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the service life of an electrode plate for an electric upsetter, and to manufacture a forging of excellent quality.
SOLUTION: In an electrode plate 30 for an electric upsetter to heat a forged member 10 from its end face by flowing large current between the forged member 10 and a support plate 20 with one surface of the forged member abutted on and supported by the conductive support plate 20 and with the end face of the forged member 10 pressed against the other surface, the surface against which the forged member 10 is pressed is formed as a ceramic layer 32 consisting of the conductive ceramic layer 32, the surface abutted on the support plate 20 is formed as a metallic layer 34, and a buffer layer 36 to mitigate the thermal stress, etc., is formed between the ceramic layer 32 and the metallic layer 34.
Inventors:
Youichi Yajima
Junichi Yamamoto
Hajime Furuhata
Fumitake Nishiyama
Masao Tokita
Masayuki Sonoda
Yoshiharu Odagiri
Junichi Yamamoto
Hajime Furuhata
Fumitake Nishiyama
Masao Tokita
Masayuki Sonoda
Yoshiharu Odagiri
Application Number:
JP6967697A
Publication Date:
December 22, 2003
Filing Date:
March 24, 1997
Export Citation:
Assignee:
Nagano Prefecture
Sumitomo Coal Mining Co., Ltd.
Nakano Stamping Co., Ltd.
Sumitomo Coal Mining Co., Ltd.
Nakano Stamping Co., Ltd.
International Classes:
F01L3/24; B21J9/08; B21K1/22; B22F3/14; B22F5/00; B22F7/08; (IPC1-7): B21J9/08; B21K1/22; B22F3/14; B22F5/00; B22F7/08; F01L3/24
Domestic Patent References:
| JP62220239A | ||||
| JP6196828A | ||||
| JP5286776A | ||||
| JP3157989A | ||||
| JP841508A | ||||
| JP6197341U |
Attorney, Agent or Firm:
Takao Watanuki (1 outside)
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