METHOD FOR SURFACE FINISHING AND METHOD OF REPAIR Russian patent published in 2009 - IPC C23C26/00 B23P6/00 B23H9/00 F01D5/28 

Abstract RU 2365677 C2

FIELD: technological processes.

SUBSTANCE: invention is related to method for formation of coat, method for repair of body with defect, part of gas-turbine engine and gas-turbine engine. Coat is formed on limited section of processed body. Working electrode is produced by pressing or pressing and sintering of pressed metal powder. Electric discharge deposition is carried out to apply the first coat from working electrode to processes body, using processed body as part in electric discharge deposition. Electric discharge deposition of the second layer is carried out from working electrode onto the first layer, using processed body as part in electric discharge deposition. Coat pores are filled with hard lubricating material. Processed body is heated in vacuum, in air or in oxidising atmosphere for compacting of the second coat or for oxidation of the second coat, at least partially for generation of hard lubricant substance.

EFFECT: method is described for surface treatment, as well as method for repair.

8 cl, 9 dwg

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RU 2 365 677 C2

Authors

Otiai Khirojuki

Vatanabe Mitsutosi

Furukava Takasi

Ootera Issei

Dates

2009-08-27Published

2006-03-09Filed