Patent ID: 10183895

Abstract:
Provided is a method for suppressing rear face oxidation and a lining structure, with which high airtightness and a great effect of suppressing rear face oxidation are obtained. The method for suppressing rear face oxidation of a carbon-containing refractory includes forming an adherent layer on a rear face of a carbon-containing refractory by applying an alkali metal silicate aqueous solution to the rear face and solidifying the alkali metal silicate aqueous solution. The alkali metal silicate aqueous solution contains an alkali metal oxide R2O (R is an alkali metal element) and SiO2 and has a molar ratio of SiO2 to the alkali metal oxide of 2.3 or more. The carbon-containing refractory is used at a high temperature of 400° C. or more and contains 1 mass % or more of carbon or a carbon compound.