Silicon steel sheet well type blackening furnace

After heating the pit tempering furnace, the workpiece is moved to the top of the oil tank or the water tank along with the furnace, and then the hoist on the furnace roof is driven to move the workpiece from the furnace through the furnace bottom door, and quickly immerse in the cooling tank to cool. The whole process of the silicon steel sheet pit blackening furnace workpiece from the furnace to entering the cooling tank and the staying time in the air are very short. Therefore, the silicon steel sheet pit blackening furnace has less oxidation and small temperature drop, and the temperature drop rate of the upper and lower parts is basically the same. , Can guarantee the quenching quality.