Aluminum alloy surface treatment method before injection molding
The invention relates to the technical field of aluminum alloys, in particular to an aluminum alloy surface treatment method before injection molding. The aluminum alloy surface treatment method comprises the following steps that (1) a to-be-treated aluminum alloy workpiece is degreased, and the deg...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention relates to the technical field of aluminum alloys, in particular to an aluminum alloy surface treatment method before injection molding. The aluminum alloy surface treatment method comprises the following steps that (1) a to-be-treated aluminum alloy workpiece is degreased, and the degreased aluminum alloy workpiece is washed with water; (2) the aluminum alloy workpiece is placed inabsolute ethyl alcohol, and washing is conducted with water; (3) the aluminum alloy workpiece is polished with a chemical polishing solution, acid pickling is conducted after polishing, and then washing is conducted with water; (4) anodic oxidation treatment is conducted on the aluminum alloy workpiece; and (5) the aluminum alloy workpiece is put into an etching solution for etching. The aluminumalloy surface treatment method is adopted for treating the aluminum alloy workpiece before injection molding, the treated aluminum alloy workpiece is good in appearance effect, the surface aluminum oxide film layer is provided |
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