Title:
CLADDING MATERIAL FOR DISCHARGE ELECTRODE, PROCESS FOR PRODUCING THE SAME AND DISCHARGE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2006/132166
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a cladding material excelling in deep-draw moldability for cup-shaped discharge electrode; a process for producing the same; etc. [MEANS FOR SOLVING PROBLEMS] There is provided a cladding material comprising foundation layer (1) of pure Ni or Ni foundationd alloy composed mainly of Ni and surface layer (2) of pure Nb whose oxygen content is 550 ppm or below. This surface layer (2) is diffusion bonded directly or through an NiNb intermetallic compound layer of 8.0 μm or less to the foundation layer (1). Preferably, the surface layer (2) is diffusion bonded to the foundation layer (1) by continuous annealing in an atmosphere of Ar gas whose dew point is -40°C or below. This continuous annealing realizes efficient diffusion bonding of the surface layer (2) to the foundation layer (1) while easily suppressing the oxygen content of the surface layer (2) to 550 ppm or below.
Inventors:
SAITO TOMOHIRO (JP)
MIURA HIROSHI (JP)
ISHIO MASAAKI (JP)
HASEGAWA TSUYOSHI (JP)
MIURA HIROSHI (JP)
ISHIO MASAAKI (JP)
HASEGAWA TSUYOSHI (JP)
Application Number:
PCT/JP2006/311185
Publication Date:
December 14, 2006
Filing Date:
June 05, 2006
Export Citation:
Assignee:
NEOMAX MATERIALS CO LTD (JP)
SAITO TOMOHIRO (JP)
MIURA HIROSHI (JP)
ISHIO MASAAKI (JP)
HASEGAWA TSUYOSHI (JP)
SAITO TOMOHIRO (JP)
MIURA HIROSHI (JP)
ISHIO MASAAKI (JP)
HASEGAWA TSUYOSHI (JP)
International Classes:
H01J61/067; B21B1/22; B23K20/00; H01J9/02
Domestic Patent References:
| WO2005048285A1 | 2005-05-26 |
Foreign References:
| JP2005183154A | 2005-07-07 | |||
| JP2004355971A | 2004-12-16 | |||
| JP2004199965A | 2004-07-15 | |||
| JPH03277540A | 1991-12-09 |
Attorney, Agent or Firm:
Honda, Tatsuo (Pressance Shin-Osaka Station Front
1-18-26-902, Higashinakajima, Higashiyodogawa-k, Osaka-shi Osaka 33, JP)
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