METHOD FOR PROTECTING INTERNAL REACTOR SURFACES FROM SATURATION WITH WORKING MEDIUM COMPONENTS DURING CHEMICAL-THERMAL TREATMENT OF PARTS Russian patent published in 2017 - IPC C23C12/00 

FIELD: chemistry.

SUBSTANCE: method for protecting the internal reactor surfaces from saturation with the working medium components during the chemical-thermal treatment of parts involves the formation of a protective coating on the inner reactor surfaces, chemically neutral to the working medium. Initially, during the formation of the protective coating, from 3 to 10 nominal coating cycles are carried out on the part to produce a coating on the internal reactor surfaces from the working agent used in the chemical-thermal treatment, after which an idle cycle of the reactor operation is carried out, in which an oxidizer is introduced into the reactor cavity to form an oxide layer on the surface of the produced coating. The idle cycle is repeated every 30-50 normal cycles of chemical-thermal treatment.

EFFECT: improving the quality of the coating applied to the part by eliminating the transfer of working agent depositions from the internal reactor surfaces to the parts.

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