FIELD: measurement equipment.
SUBSTANCE: in the method of flaw detection of metal items during their surface treatment, which consists in heating of surface of items with a high-energy source of heat and its visual inspection, surface is heated in vacuum due to energy confined in cathode spots of the vacuum arc discharge that move on the surface of the item, and the discharge glows between the item, which is both a cathode and an anode. Use of the vacuum arc discharge makes it possible to treat steel items of various geometric shape in vacuum.
EFFECT: simplified process of flaw detection and increased efficiency due to high speed of cathode spots movement.
4 dwg
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