FIELD: metallurgy.
SUBSTANCE: invention relates to the field of hardening by induction surfacing of working elements operating under conditions of intensive wear, for example, agricultural machine building, mining industry, road construction, repair of equipment. Alloy “ПГ-СР2” is placed on the surface of the part being hardened with a layer of thickness of 0.5–2 mm and the part and the alloy layer are heated by high-frequency currents until the alloy melts with formation of a hardened interlayer between the part and the melted layer. Hardened part is heated during surfacing at 100–150 °C higher than melting point of alloy “ПГ-СР2”, with formation of hardened interlayer in form of carburizing layer simultaneously with surfacing. Melt is held on part surface at 1,190 °C for 8–16 s.
EFFECT: method simplifies the process of induction surfacing of the wear-resistant alloy with simultaneous case hardening of the surface being hardened.
1 cl, 1 dwg, 1 ex
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