一种铝铜合金的清洗方法
By combining a two-step pickling process with ultrasonic cleaning, the problem of surface oxidation in aluminum-copper alloys was solved, ensuring the metallic luster and smelting quality of the alloys.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI TONGCHUANG PURUN NEW MATERIALS CO LTD
- Filing Date
- 2023-09-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are prone to surface oxidation when cleaning aluminum-copper alloys, resulting in loss of metallic luster and affecting the alloy composition ratio and product purity.
A two-step pickling method is adopted, which combines ultrasonic cleaning and vacuum drying with a first acid solution and a second acid solution. The first acid solution is composed of nitric acid, hydrochloric acid, hydrogen peroxide and water, and the second acid solution is composed of tannic acid, phytic acid, imidazole and fatty alcohol polyoxyethylene ether, which remove the oxide film and inhibit the corrosion of the surface respectively.
This effectively prevents oxidation of the aluminum-copper alloy surface during the cleaning process, maintains the metallic luster, and ensures the smelting quality of the aluminum-copper ingots.
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