Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatment

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United States of America Patent

PATENT NO 9284647
APP PUB NO 20100086398A1
SERIAL NO

12558950

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Abstract

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A sliding surface of a high-temperature portion is subjected to an electro-discharge surface treatment with one or both of a high-temperature hard material (4) and a material having a lubricating property at a high temperature (6). The high-temperature hard material (4) is any or a mixture of cBN, TiC, TiN, TiAlN, TiB2, WC, Cr3C2, SiC, ZrC, VC, B4C, Si3N4, ZrO2, and Al2O3. The material having the lubricating property at the high temperature (6) contains chromium and/or chromium oxide (Cr2O3) and/or hexaboron nitride (hBN). An electrode formed by compression molding of the high-temperature hard material, and the high-temperature lubricating material containing at least one of Cr and hBN and having the lubricating property at the high temperature is used as the electrode for the electro-discharge surface treatment.

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Patent Owner(s)

  • IHI CORPORATION;MITSUBISHI DENKI KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akiyoshi, Masao Tokyo, JP 66 325
Arai, Mikiya Tokyo, JP 15 104
Goto, Akihiro Tokyo, JP 165 1183
Nakayama, Eiji Tokyo, JP 70 967
Ochiai, Hiroyuki Tokyo, JP 64 420
Saburi, Shigeru Tokyo, JP 5 45
Watanabe, Mitsutoshi Tokyo, JP 77 342

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