Method and device for convective heat transfer between a heat transfer medium and the surface of a workpiece

摘要

The invention relates to a method and a device for convective heat transfer between a heat transfer medium and a surface, in particular the end face of a wound metal strip in the form of a coil, the surface being exposed to the heat transfer medium by means of at least one nozzle wall. The heat transfer medium can be a fluid or a gas. DOLLAR A The device is characterized in that at least one of the nozzle walls (10; 11) and the surface to be acted upon are designed to be movable relative to one another during the heat treatment. In a particularly preferred exemplary embodiment of the invention, the nozzle walls can be rotated about an axis of rotation (71) which corresponds to the main axis (70) of the coil or is essentially parallel thereto.