Device for automatically blowing the adhering water off after passing through the pretreatment plant. The rotary blow-off zone is a device for blowing the adhesive water off workpieces that have been washed for the purposes of painting. It consists of a closed stainless steel sheet metal housing with forced ventilation and is employed immediately after the washing installation. In order to achieve more effective drying in the case of fissured surfaces, the blower nozzles are arranged on a rotary axis. The adhering water is blown off by the parts by air blown at high speed through the rotary blower nozzles. The effect of this is that no water droplets remain on the workpiece that could lead to slight marks in the paint film. Due to the varying blowing direction, the water is also blown out of problem zones and scooped parts in most cases. In order to be able to optimise the direction of the blower nozzle air jets, the nozzles have adjustable nozzle heads. The water that is blown off runs back into the pretreatment plant. The blowing air is extracted from the blowing tunnel via a return air duct with adjustable suction apertures.
Germany
Pretreatment is a crucial step in electroplating. During the manufacturing of components, oils and fats are used to facilitate the machining of the workpieces and temporarily protect the metal surface from corrosion. Before the electroplating process, these oils and fats must be removed from the workpiece to be plated, as any residues can lead to coating defects. A thorough pretreatment is an important prerequisite for a high-quality coating. Depending on the process sequence, pretreatment may involve multiple steps. In this group of processes, Schlötter offers boiling or hot degreasing, electrolytic degreasing for a variety of base materials such as steel, copper, brass, as well as pretreatments for aluminum and zinc die casting.
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Singeing consists in burning off projecting fibres, without damaging the fabric, in order to obtain a smooth surface and minimise pilling. This technique is commonly used on natural fibre fabrics and synthetic and natural fibre blend fabrics. Singeing consists in burning off projecting fibres, without damaging the fabric, in order to obtain a smooth surface and minimise pilling. This technique is commonly used on natural fibre fabrics and synthetic and natural fibre blend fabrics. The purpose of bleaching is to remove natural colouring matters with the production of a pure white material. Washing : This step consists of cleaning the fabric of any excess chemical residues from the previous steps.
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