CORROSION AND WEAR RESISTANT STOCK AND CORROSION AND WEAR RESISTANT COINS AND METHODS OF MANUFACTURING THEREOF Russian patent published in 1997 - IPC

Abstract RU 2091236 C1

FIELD: coatings. SUBSTANCE: invention relates to stock and coin with electroplated coating capable to have image impressed at least on one side. Such a stock has opposite sides, peripheral edge, and electroplated coating composed of copper with 0.5 to 4 wt % tin completely covering the stock. Thickness of coating on at least the side to be impressed is 5 to about 50 mcm. Method of manufacturing stock and coins are also provided. EFFECT: improved corrosion and wear resistance of coins, medallions, and badges. 23 cl, 1 dwg, 2 tbl

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RU 2 091 236 C1

Authors

Mitsikhiro Jasuda[Ca]

Majkl Dzhon Kharvi Rasko[Ca]

Allan Kh.Li[Ca]

Dates

1997-09-27Published

1991-04-01Filed