company news about High alumina castable used in heating furnace(1)

High alumina castable used in heating furnace(1)

Heating furnace is the heating of materials or parts of equipment. According to the heat source division of a fuel heating furnace, resistance furnace, induction furnace, microwave heating furnace. Application in the petroleum, chemical, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemical, pharmaceutical and other industries.

The heating furnace is used for heating the billet thermal equipment or a small ingot rolling or forging steel. The heating furnace is composed of furnace wall, bottom and top etc.. It is used in the temperature is not high, generally at 1400 DEG C a. For continuous or ring heating furnace, the temperature of each part is basically constant, can be divided into low temperature, medium temperature, high temperature of three segment bands, respectively, become the preheating and heating zone and are tropical, the temperature of 800~900 DEG C C, respectively 1150~1200 and 1200~1300 degrees. Lining damage is mainly because the temperature fluctuation of intermittent operation and shutdown of the boiler start-up caused, resulting in lining deformation and thermal spalling. The furnace bottom and furnace wall root damage is mainly iron oxide skin residue and brick melting occur chemical reaction caused by. Therefore, we should choose different refractory materials according to the different parts of the different conditions.