Title:
PROCESS FOR PRODUCING ELECTRODE FOR ELECTRIC DISCHARGE SURFACE TREATMENT AND ELECTRODE FOR ELECTRIC DISCHARGE SURFACE TREATMENT
Document Type and Number:
WIPO Patent Application WO/2008/032359
Kind Code:
A1
Abstract:
A process for producing an electrode for electric discharge surface treatment
capable of forming of a coating excelling in abrasion resistance over a temperature
range from low to high temperature by electric discharge surface treatment;
and such an electrode for electric discharge surface treatment. There is provided
a process for producing an electrode for electric discharge surface treatment
useful in electric discharge surface treatment in which using as an electrode
a molded powder obtained by molding of a metal powder, or powder of metal compound,
or powder of conductive ceramic, pulsed electric discharge is generated between
the electrode and a work in a machining liquid or gas so that by the energy thereof,
on the surface of the work there is formed either a coating consisting of the material
of the electrode or a coating of substance resulting from reaction of the material
of the electrode by the pulsed electric discharge energy, which process comprises
increasing the oxygen within the powder; mixing together the powder with the
oxygen increased, an organic binder and a solvent to thereby obtain a mixture
liquid; carrying out granulation from the mixture liquid to thereby obtain granulated
powder; and molding the granulated powder to thereby obtain a molded item of 4
to16 wt.% oxygen concentration.
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Inventors:
TERAMOTO HIROYUKI (JP)
SATO YUKIO (JP)
SUZUKI AKIHIRO (JP)
GOTO AKIHIRO (JP)
NAKAMURA KAZUSHI (JP)
SATO YUKIO (JP)
SUZUKI AKIHIRO (JP)
GOTO AKIHIRO (JP)
NAKAMURA KAZUSHI (JP)
Application Number:
PCT/JP2006/317999
Publication Date:
March 20, 2008
Filing Date:
September 11, 2006
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
IHI CORP (JP)
TERAMOTO HIROYUKI (JP)
SATO YUKIO (JP)
SUZUKI AKIHIRO (JP)
GOTO AKIHIRO (JP)
NAKAMURA KAZUSHI (JP)
IHI CORP (JP)
TERAMOTO HIROYUKI (JP)
SATO YUKIO (JP)
SUZUKI AKIHIRO (JP)
GOTO AKIHIRO (JP)
NAKAMURA KAZUSHI (JP)
International Classes:
C23C26/00; B22F1/102; B22F1/142; B22F5/00
Domestic Patent References:
| WO2005068670A1 | 2005-07-28 |
Foreign References:
| JP2006124741A | 2006-05-18 | |||
| JP2005213560A | 2005-08-11 | |||
| JP2005213560A | 2005-08-11 | |||
| JP2000042441A | 2000-02-15 |
Other References:
See also references of EP 2062998A4
Attorney, Agent or Firm:
SAKAI, Hiroaki (Kasumigaseki Building 2-5, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 19, JP)
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