FIELD: electrothermic machine engineering, vacuum installations for chemicothermal machining in discharge and deposition of coats. SUBSTANCE: gear for machining in discharge under low-pressure conditions has vacuum chamber, substrate with negative potential for positioning of parts and additional thermoemission electrode, conductive rod with sharpened tip mounted for vertical movement and placed in center of substrate. EFFECT: reduced probability of formation of microarcs and diminished damage of surface of parts from their action. 1 cl, 1 dwg
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