Pickling passivation process
A pickling passivation and process technology, which is applied in the coating process of metal materials, etc., can solve the problems of over-corrosion and hydrogen embrittlement, uneven silvery white surface, and incomplete removal of dirt, etc., so as to achieve simple operation and low cost , Improve the effect of corrosion resistance of equipment
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[0006] Example 1: Pickling: Immerse the equipment in the pickling pool at room temperature, apply the pickling paste evenly on the equipment, 1mm thick, control the temperature of the coating surface between 15°C and 25°C, and avoid direct sunlight to avoid After the smeared surface is dry, stay for 30 minutes, then gently brush it with clean water or a stainless steel wire brush until it shows a uniform white acid-etched finish. During the pickling process, the operator must be careful and observe in time to prevent excessive corrosion on the surface of the container. Passivation: put the equipment after pickling into the passivation pool at room temperature, apply passivation paste evenly on the surface of the equipment, 2mm-3mm thick, control the temperature of the coating surface between 15°C-25°C, 30 minutes Check afterward until a uniform passivation film is formed on the surface. Rinse: Rinse the passivated equipment into the cleaning pool, then test any part of the ri...
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