FIELD: metallurgy.
SUBSTANCE: long steel part is processed. During processing the preliminary and final ion-vacuum nitriding in a glow discharge, restriking and honing are carried out. Restriking and honing are carried out after the preliminary and before the final nitriding, at that the preliminary nitriding is performed at a temperature of 510-530°C and a pressure of 350-600 Pa during 8-14 hours. The final nitriding is performed at a temperature of 500-540°C for 2.0-4.0 hours and a pressure of 390-650 Pa.
EFFECT: provision of required geometric characteristics of the processed parts and preservation of integrity, uniformity and continuity of the nitrided layer.
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