Convection drying process for paint layers on vehicle bodies, railway carriages, etc. uses drying booth with ventilator to provide drying air, and regulator flaps to vary air flow direction around vehicle

摘要

A vehicle etc. with a water lacquer coat is dried within a drying booth having an air guide channel at the top supplied with conditioned drying air by a ventilator. The process air is guided by regulator flaps and/or reversal of the ventilator flow direction, alternately in different directions, e.g. vertically upwards, diagonally and/or horizontally to the booth. Due to this, the air flows alternately around the vehicle in such a way, that moisture content and temperature of the complete damp paint layer is homogenized. The drying booth has a drying chamber (10) with air intakes and outlets (8.1,8.2,9.1,9.2,9.3) and a blower (2) with at least three associated regulator flaps (5.1,5.2,6.1,6.2,7) to alter the air flow direction around the vehicle (30).