Rotor and coating method therefor

Details Rotor and coating method therefor Rotor and coating method therefor

C - Chemistry, Metallurgy

23

C

C23C 26/00 (2006.01) C23C 26/02 (2006.01)

Patent

CA 2483528

With a rotor such as a moving blade and a discharge electrode containing a hard material such cBN kept in a working liquid or a gas, a pulse-like discharge is generated by a discharging power supply between the tip end of the rotor and the discharge electrode to thereby melt the discharge electrode and deposit part of thereof onto the tip end of the rotor, whereby an abrasive coating containing a hard material such as cBN is formed.

Selon l'invention, dans un rotor, tel qu'une pale mobile et une électrode de décharge renfermant un matériau dur, tel que du cBN, maintenu dans un liquide ou gaz de travail, une décharge de type impulsion est produite par décharge d'une alimentation de puissance entre l'extrémité de l'aube du rotor et l'électrode de décharge, de manière à fondre l'électrode de décharge et à déposer une partie de celle-ci sur l'extrémité de l'aube du rotor, un revêtement abrasif renfermant un matériau dur, tel que du cBN, étant ainsi formé.

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