Device for the uniform impingement of a flat surface of a workpiece with a heated gas

摘要

The device for the uniform impingement of a flat surface (2) of a workpiece with a heated gas shows a equipped with nozzles (3), parallel to the flat surface extending and with openings for the nozzles (3) provided with a nozzle plate (5). Dollars a the nozzles (3) in this case are normal to the surface (2), are of tubular form, and in them is a helical deflection device (6) is arranged. Since the gas jets normal to the surface to be applied (2), the shortest possible stream path and a reduction of the heat transmission when. As a result of the spiral-shaped guidance of the beams, their cross-sectional area at the outlet, so that the surface to be heated (2) in the case of a suitable arrangement of the nozzles (3) is covered evenly.