A model study of thermal characteristics of decarburization annealing furnace for silicon steel strip

The zonal modeling is proposed in this work to predict temperature distribution and power inputs of SF. The situations of production involve three PH2/PH2O, three strip speeds, and three strip thicknesses to get the variation of temperature and electric power during decarburization process. The ways of heat transfer used in zonal modeling are used to explain the temperature tendency very well and validate the applicability of this model in production. Results demonstrate that initial temperature of strip reduces with the increase of strip speed and thickness, power inputs ascend with the increase of each parameter individually, and the proportion of radiation heat transfer is more than 80% of the heat transfer.