Roller hearth heat treatment furnace is plate heat treatment production line in standard configuration, state of the furnace bottom roll is good or not will directly affect the appearance and quality of steel plate factory.Production of furnace bottom roll bending roll and roll breakage problems sometimes.Roll breakage mainly appear in the preheating section of the furnace and heating period, the main parts of the roll breakage is shaft head, neck and roll.Broken roller can affect production of thick plate, prone to accidents at the same time. The bottom of the furnace roller broken roller processing:To cancel or reduce the joint turning processing, or increase thickness of roll, and enhance the overall strength of combining site;To improve roll and roll neck with size, roll and roll neck.In strict accordance with the curve of oven to heat up, the furnace with bottom roller furnace cooling, reduce the influence of temperature change.In addition should be timely replacement of defective furnace bottom roll.
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