METHOD FOR IMPROVING CORROSION RESISTANCE AND ABRASION RESISTANCE OF CHROME PLATED LAYER

PURPOSE: A method for improving corrosion resistance and abrasion resistance of a chrome plated layer by removing cracks present in chrome plating in the special vacuum atmosphere is provided, which has the advantage of providing high-quality chrome plating agent having remarkably improved corrosion...

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Hauptverfasser:	KIM, DONG SU, KIM, MAN, NAM, GI SEOK, KWON, SIK CHEOL
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	APPARATUS THEREFOR CHEMISTRY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
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Beschreibung
Zusammenfassung:	PURPOSE: A method for improving corrosion resistance and abrasion resistance of a chrome plated layer by removing cracks present in chrome plating in the special vacuum atmosphere is provided, which has the advantage of providing high-quality chrome plating agent having remarkably improved corrosion resistance and producing chrome nitride, chrome carbide or chrome carbonitride chrome plating having excellent abrasion resistance. CONSTITUTION: A chrome plated object in a reaction vessel is subjected to maintaining under a vacuum of 10¬-2 torr with 10 to 70% by volume of H and the remaining of argon and sputtering-washing under the plasma atmosphere for about 10 to 60 min. The object is then subjected to maintaining under a vacuum of 1 to 10 torr and heating at 150 to 900deg.C and C, or N, N and C are diffused into the object at 150 to 90deg.C for about 30 min to 200 hr.