Full hydrogen bright hood annealing furnace
The full hydrogen bell-type bright annealing furnace uses hydrogen as the protective atmosphere. The hydrogen flows fast at high temperatures, and the heat transfer speed is 7 times that of nitrogen. It can conduct heat directly from the radial direction of the steel coil. The molecular weight of hydrogen is small, only 1/14 of that of nitrogen. , It can significantly reduce the power consumption of the stove circulating fan and reduce the noise of the equipment. In addition, hydrogen can convert the oxidation residue of the cold-rolled sheet into water vapor at high temperature, and significantly improve the annealing quality of the cold-rolled sheet.