FIELD: process engineering.
SUBSTANCE: invention relates to protection of steel surfaces against erosion including that caused by cavitation, by building up corrosion-erosion-resistant powder. First, corrosion-erosion-resistant self-fluxing filler powder material and sieved and calcined. Heating zone is created at part surface by continuous laser beam to feed filler material thereto, to fuse it and mix with fused mother material. Building-up is carried out on shifting laser beam at constant rate and invariable lens focus position relative to processed surface at radiation density q varied in the range of 5×108 ≥ q ≥ 3×108 W/cm2, and at mother metal-to-built-up metal ratio of γ = 5-15%.
EFFECT: higher quality of deposited metal.
4 dwg, 1 ex
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