METHOD FOR OBTAINING POWDER COATINGS ON BASIS OF METAL MATRIX Russian patent published in 2010 - IPC C23C24/08 B22F7/04 B22F1/00 

FIELD: metallurgy.

SUBSTANCE: method involves application of copper base to the surface, which is heated to 70-90°C, layer of jelly flux, its heating to 100-120°C. Then to the base there applied is layer of copper powder pre-dried to humidity of 3-4% and heated to 110-130°C, and burnt to the base by means of roller electrodes by using alternating current pulses. Duration of pulses is 0.7-0.8 of sinusoid period, and pause between them is 0.2-0.3 of sinusoid period. At that, prior to drying and heating, copper powder is subject to mechanical activation during 50-70 min.

EFFECT: improving mechanical properties of coatings.

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