The weld of the airport chair of pickling and passivation method

by:OUHE     2020-05-23
In the production of stainless steel products, usually will appear weld, airport chair is not exceptional also, often will use pickling and passivation processing, but different methods used by the manufacturer will be different. Pickling: remove the oxide coating on the surface of the weld seam and heat affected zone; Passivation, pickling surface is used to form a layer of colorless dense oxide film, corrosion resistant effect. Pickling surface before cleaning and repair, repair damage to surface, thoroughly remove weld on the surface of the near surface residue and weld spatter.
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