FIELD: metallurgy.
SUBSTANCE: in the method of anti-silver spot treatment of forged piece made of steel, forged piece after hot plastic deformation is subject to solid hardening with a temperature on the surface of forged piece not lower than 600°C and formation in its volume of nonequilibrium structures in layer not less than 1/3 of radius and thickness of forged piece from its surface. Moreover, for hardening after hot plastic deformation it is subject forged piece, forged with relative degree of deformation not less than 0.5. Declared method is applicable for all silver spot-sensitive steel, including non-vacuum-degassed steels, can be implemented ay available equipment and doesn't require any additional expenditures.
EFFECT: increasing of quality, reliability and durability of products by means of discard removing by silver spots.
3 ex, 2 dwg
