METHOD FOR PRODUCING FIRED BODY AND FIRING FURNACE USED THEREFOR

摘要

The method for producing a fired body of the invention has the steps of: preparing a starting material that is a mixture containing an inorganic compound, an organic binder and a solvent; molding the mixture to obtain a green molded body; a first heating step to make the molded body contain residual carbon-containing substances in a furnace by increasing the temperature of the furnace while introducing a gas with an oxygen concentration of 1 to 5 vol%; and a second heating step following the first heating step to obtain a fired body by further increasing the temperature of the furnace without introducing the gas with an oxygen concentration of 1 to 5 vol%; wherein the conditions for the first heating step are set so that when the molded body is allowed to stand after the first heating step in an oxygen-containing atmosphere at 900°C, the temperature at the center section of the molded body is at least 20°C higher than the temperature of the atmosphere in the furnace.