Manufacturing process of metal window of fire-pump room
A manufacturing process and technology of metal windows, applied in metal material coating process, device for coating liquid on the surface, pretreatment surface, etc., can solve the problem of no inclusion, achieve reduction of rework and waste, small loss, and reasonable steps Effect
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[0011] Embodiment The manufacturing process of the metal window of the fire-fighting pump room includes the following steps, pretreatment, making the surface of the workpiece clean, uniform, and grease-free through degreasing, rust removal, and phosphating processes; in the first step, phosphating is to use manganese phosphate, Metal workpieces are treated with zinc and cadmium orthophosphate solutions to form an insoluble phosphate protective layer on the surface of the workpieces. The formed phosphating film has a dense structure with fine pores, which increases the surface area of the workpiece and greatly improves the organic Adhesion of the coating to the workpiece. Drying, quality inspection before hanging, visual inspection of unpainted workpieces before going online; grinding, removing granular impurities on the surface of the workpiece with water sandpaper to increase roughness; hanging, hooking the workpiece on the hanger, the hanger is conductive and Move with the...
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