APPARATUS FOR CHEMICAL-THERMAL PROCESSING OF CYLINDRICAL PRODUCTS IN NON-SELF-MAINTAINED DISCHARGE Russian patent published in 2004 - IPC

FIELD: electric engineering, in particular, heating and chemical-thermal processing of products in induction field.

SUBSTANCE: apparatus has inductor for placing product to be processed therein. AC source equipped with control system is connected with its positive terminal through inductive filter to inductor and with its negative terminal to product under processing. Water cooling system is connected through first electromagnetic gate to inductor. Gas system is connected to second electromagnetic gate. Apparatus has temperature sensor for sensing temperature of product under processing. Inductor is provided with sprayer made in the form of apertures uniformly distributed on inductor inner surface. Water and gas supply control system for controlled supplying of water and gas into inductor cavity has signal converter, comparison element, two time relays, NOT element, AND-NOT element, and two actuating mechanisms.

EFFECT: increased efficiency, improved quality of diffusion layer and depth of diffusion processing, and reduced power consumption.

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