FIELD: various technological processes.
SUBSTANCE: invention relates to a method of hardening metal surfaces by sulphocyanation. Iron-titanium coating layer is electroplated. Then said coating is subjected to sulphocyanation for 1–3 hours at temperature of 823–873 K using a coating of the following composition, wt.%: sulphur pyrite 25, potassium ferrocyanide 55, chamotte 20.
EFFECT: higher microhardness and wear resistance of steel parts.
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