Chromium carbide powder with strong resistance to abrasive wear

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The main methods for preparing this powder include the electric arc furnace method and the carbothermal reduction method. Among them, the powder produced by the carbothermal reduction method has a finer particle size and a lower cost, making it suitable for large-scale application. When the oxygen content of the powder is less than 0.2%, it can reduce the pores and inclusions in the coating and improve the density of the coating. After spraying chromium carbide powder on the surface of the valve tappets of a car engine, the wear of the tappets can be reduced by 80%, and the major overhaul cycle of the engine can be prolonged.

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