ELECTRODE FOR DISCHARGE SURFACE TREATMENT AND PRODUCTION METHOD OF THE SAME
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United States of America
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Dec 19, 2024
app pub date -
Aug 26, 2024
filing date -
Aug 26, 2024
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Abstract
Discharge surface treatment is carried out by an electrode provided with a sintered body of a metal micro-powder having a median diameter of 3 micrometers or smaller and a metal macro-powder having a median diameter larger than 3 micrometers and not larger than 10 micrometers, in which the metal micro-powder and the metal macro-powder form an electrode powder containing Cr and oxygen, which is produced by mixing and granulating the metal micro-powder and the metal macro-powder, compressing and molding the granulated powder under a pressure of from 20 MPa to 300 MPa, and firing the compressed body at from 450 degrees C. to 950 degrees C., and the oxygen content rate of the sintered body is 1.5 mass % or higher and 4.0 mass % or lower.
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