FIELD: thermodifusion alloying of articles. SUBSTANCE: plant has turning electric furnace with vessel separated by valve into working and auxiliary zones, sluice chamber secured coaxially to cover, perforated container attached to cover. Valve is made in form of two perforated plates with truncated cones located between them. Each cone has freely moving ball. Outer diameter of ball is larger than, or equal to, inner diameter of truncated cone, and density of ball is below density of alloying mixture. Vessel is heated by heaters. EFFECT: higher efficiency. 2 cl, 3 dwg
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