METHOD OF OBTAINING WEAR RESISTANT LAYERS ON TOOLS AND WEARABLE PORTIONS OF PARTS Russian patent published in 1994 - IPC

Abstract RU 2007281 C1

FIELD: electric spark alloying. SUBSTANCE: method comprises steps of electric spark alloying of working surfaces of tools and wearable portions of parts; their subsequent treatment by heating and soaking at 1000-1050 C over 5 hours in air in a powder medium, containing (mass % ); chromium oxide 20; niobium pentoxide 15; aluminium 20, ammonium chloride 2; aluminium oxide 0 the balance. EFFECT: enhanced quality of protection of tool surface. 1 cl, 1 tbl

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RU 2 007 281 C1

Authors

Gromov Ju.N.

Kotofeev V.A.

Vorob'Ev M.V.

Dates

1994-02-15—Published

1992-01-09—Filed