Surface treatment


Surface treatment enhances product weather resistance and aesthetics:

  • Polishing :Suspension polishing (rough polishing) → barrel polishing (fine polishing) → air polishing (edge processing), surface roughness reaches Ra0.8μm.

  • Pickling and Passivation :Immersion in a mixed solution of nitric acid and hydrofluoric acid to remove the oxide layer and form a passivation film, salt spray test ≥500 hours.

  • Spray Coating :Optional epoxy resin coating (matte black) or nickel plating (mirror effect).

  • Final Inspection :Color difference meter detects coating uniformity, and adhesion is tested using a cross-cut test.

Surface treatment

Picture display


Surface treatment

Surface treatment

Surface treatment

Surface treatment

Surface treatment

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