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.In the production of furnace bottom roll bending problems sometimes. 
When bottom roll bending, the roller surface elevation will not in the same line, cause uneven load of each roller, cause individual roller overload, roller table to produce crack or break.At the same time bending plate wandering.
The furnace bottom roll bending process:
Blackouts in furnace bottom roll stalling arrange personnel to manually set furnace bottom roll.Daily check whether to watch when the coupling bolt looseness, coupling itself if there is a crack, whether lubricating oil in place.In addition, to avoid overloading.