Method of drying and/or curing an organic coating on a continuously running metal strip, and device for implementing this method
AssigneePrimetals Technologies France SAS
InventorPierre-Jérôme Borrel
Life of this patent
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Abstract
A method of drying and/or curing an organic coating on a continuously running metal strip, includes heating the strip by electromagnetic induction in a tunnel furnace having an enclosure with hot internal walls and heating the enclosure. The heating of the strip by electromagnetic induction is coupled with heating by infrared radiation and heating by convection with a combustion gas. The heating of the enclosure of the furnace is performed by convection using the same combustion gas used for heating the strip by convection. A device for implementing the method is also provided.
Claims6
A device for curing, drying, or curing and drying an organic protective, decorative, or organic protective and decorative coating previously deposited on a metal strip, the device comprising:
- a tunnel furnace having an enclosure with hot internal walls, a first end with an inlet and a second end with an outlet;
- said enclosure having a moving device for moving the strip with the organic coating from said inlet to said outlet;
- said enclosure having each of:
- an electromagnetic induction strip heating device for heating the strip passing through the furnace by electromagnetic induction;
- a wall heating device for heating the walls of the enclosure and the strip with the coating by convection with a combustion gas;
- and
- an infrared radiation device for heating the strip with the coating by infrared radiation.
Dependencies are inferred from the claim text.