FIELD: machine building.
SUBSTANCE: invention relates to machine building, namely, to chemical-thermal treatment of parts, and can be used for surface hardening of parts of machines and parts of tooling in machine building, metallurgical, chemical, instrumental and other industries. Composition of bath for nitriding of parts from structural and tool steels contains melt of components at following ratio, wt%: carbamide (NH2)2CO 32–35, sodium carbon Na2CO3 28–30, sodium chloride NaCl 6, calcium chloride CaCl2 6, barium chloride BaCl2 8, sodium hydroxide NaOH – the rest.
EFFECT: higher environmental safety and operational resistance of parts of machines and tools.
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