FIELD: process engineering.
SUBSTANCE: invention relates to machine building and may be used for surface hardening. Proposed process comprises forcing of ionised gas produced fed through electric discharge on to part surface. Note here that said local coating is made with the help of nozzle arranged 8-10 mm from part surface at the angle of 70-80 degrees thereto. Note here that ozonised air is used as said ionised gas. Said ozonised air is obtained with the help of corona discharge of 400 mcA created inside said nozzle. Said ozonised air is forced to part surface at 0.2 kgf/cm2 and room temperature. Said ozonised air is forced to part of titanium alloy for 3 hours, to part of high-speed alloys for 3.5 hours and to hard-alloy part for 4 hours.
EFFECT: simplified process, lower labor input and costs.
4 cl, 1 ex
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