Conveyor furnace
AssigneeSandvik Materials Technology Deutschland GmbH
InventorThomas FROBOSE
Life of this patent
Estimating the term…
Abstract
A conveyor furnace includes a muffle having an inlet opening and an outlet opening, with a heating device for heating a volume delimited by the muffle, and a closed conveyor belt manufactured at least partially from metal. The conveyor furnace includes another heating device which is arranged so that, during the operation of the conveyor furnace, the heating device heats a section of the conveyor belt extending outside of the muffle.
Claims17
A conveyor furnace comprising:
- a muffle having an inlet opening and an outlet opening;
- a heating device for heating a volume delimited by the muffle;
- a closed conveyor belt manufactured at least partially from metal, the conveyor belt including a first section extending through the muffle such that, during the operation of the conveyor furnace, a workpiece to be annealed can be conveyed in through the inlet opening and out through the outlet opening of the muffle, and a second section extending outside of the muffle, wherein, during the operation of the conveyor furnace, the first section of the conveyor belt can be moved in a first direction, while, at the same time, a another section of the conveyor belt can be moved in a second direction opposite from the first direction;
- and
- a heating device is arranged so that during the operation of the conveyor furnace, the heating device heats the second section of the conveyor belt outside of the muffle.
A pilger rolling mill train comprising a cold pilger rolling mill and a conveyor furnace, the conveyor furnace having an inlet opening and an outlet opening;
- a heating device for heating a volume delimited by the muffle;
- a closed conveyor belt manufactured at least partially from metal, the conveyor belt including a first section extending through the muffle such that, during the operation of the conveyor furnace, a workpiece to be annealed can be conveyed in through the inlet opening and out through the outlet opening of the muffle, and a second section extending outside of the muffle, wherein, during the operation of the conveyor furnace, the first section of the conveyor belt can be moved in a first direction, while, at the same time, another section of the conveyor belt can be moved in a second direction opposite from the first direction;
- and a heating device arranged so that during the operation of the conveyor furnace, the heating device heats the second section of the conveyor belt outside of the muffle.
A drawing train comprising a drawing bench and a conveyor furnace, the conveyor furnace having an inlet opening and an outlet opening;
- a heating device for heating a volume delimited by the muffle;
- a closed conveyor belt manufactured at least partially from metal, the conveyor belt including a first section extending through the muffle such that, during the operation of the conveyor furnace, a workpiece to be annealed can be conveyed in through the inlet opening and out through the outlet opening of the muffle, and a second section extending outside of the muffle, wherein, during the operation of the conveyor furnace, the first section of the conveyor belt can be moved in a first direction, while, at the same time, another section of the conveyor belt can be moved in a second direction opposite from the first direction;
- and a heating device arranged so that during the operation of the conveyor furnace, the heating device heats the second section of the conveyor belt extending outside of the muffle.
A method for annealing a workpiece in a conveyor furnace, the method comprising the steps of:
- providing a conveyor furnace, the conveyor furnace including a muffle with an inlet opening and an outlet opening, a heating device for heating a volume delimited by the muffle, and a closed conveyor belt manufactured at least partially from steel, wherein a first section of the conveyor belt extends through the muffle, and a second section of the conveyor belt extends outside of the muffle;
- moving the first section of the conveyor belt in a first direction so that the workpiece to be annealed is conveyed through the inlet opening into the muffle, is heated in the muffle and is conveyed out of the muffle through the outlet opening,
- simultaneously moving a section of the conveyor belt with the movement of the first section in a second direction opposite from the first direction;
- and
- heating the second section of the conveyor belt extending outside of the muffle a heating device for the conveyor belt.
Dependencies are inferred from the claim text.