Comparison of pure metal coating preparation by thermal spraying, cold spraying and electroplating methods
2015
The arc temperatures can reach 5000 C, enough to melt any metal material, at the same time the part surface remains cool [2] . High-speed cold spraying is compressed air loading solid particle impact the substrate and forms dense coating. The supersonic gas jet is not absolutely cold, the gas temperature is between 500 C and 600 C so as to make the particles carry more energy and strengthen the adherence with the substrate [3-5] . In this study, copper coating on the high-voltage switch was deposited on aluminum alloy substrate by arc spraying, cold spraying and plating so as to make the switch more lightweight.
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