PURPOSE: To contrive the unification of temperature distribution in a furnace by a method wherein a nozzle is provided near the entrance of a pressurized degreasing furnace employed for the degreasing treatment of a ceramics form to introduce gas for degreasing into the furnace.
CONSTITUTION: Nozzles 6 are attached to the lower part, upper part or both parts of a pressure vessel 4 in a pressurized degreasing furnace 11. The injecting direction of gas from the nozzles 6 can be adjusted so as to be various directions, such as the direction toward upper, lower or whirling direction along the furnace wall in the pressure vessel 4. According to this method, the injecting directions of gas are combined optimally to mix gas in the furnace 11 and unify temperature distribution.
KUMAMOTO KENJI
ISHIMORI MASAKI
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