Anti-corrosion anti-rust passivation treatment process of copper alloy surface

• Main Author: FANG CANGEN
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2018
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The invention discloses an anti-corrosion anti-rust passivation treatment process of a copper alloy surface. The technological process of the anti-corrosion anti-rust passivation treatment process comprises the following steps: grinding and polishing: grinding the copper alloy surface to be bright by using 400 to 2000 meshes of carborundum paper; then cleaning the copper alloy surface for 5 minutes by adopting a KS-80D type ultrasonoscope for subsequent use; alkali washing treatment: cleaning the copper alloy subjected to grinding and polishing treatment for 30 seconds at a room temperature byusing a mixed solution of 1 percent of NaCl, 2 percent of Na2CO3 and 3 percent of Na3PO4, and washing the copper alloy by adopting cold water after cleaning is finished and enabling the copper alloyto be used subsequently; acid washing treatment: dividing an acid washing process into a pre-acid washing process and bright acid washing, putting the copper alloy subjected to alkali washing into a mixed solution of 10 percen