Aluminum alloy electrolytic chemical milling method
A technology for aluminum alloys and inert alloys, which is applied in the fields of aluminum alloy processing and electrolytic milling of aluminum alloys. It can solve the problems of difficult control of aluminum alloy milling speed, low alkali concentration, and high surface roughness. The processing method is simple and easy, Reduction of environmental pollution and high surface quality
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Embodiment 1
[0031] The first step is to select 0.8mm thick 2024-T3 aluminum alloy and cut it into 40mm×40mm×0.6mm small samples to prepare 3 pieces;
[0032] The second step, alkaline washing and photochemical treatment, fix the 2024 alloy on the hanger, select 40% NaOH alkaline washing solution for 5 minutes, the alkaline washing temperature is room temperature, and the solution stirring speed is about 120rpm;
[0033] The third step, photochemical treatment, the photochemical solution is 30% HNO 3 Solution, the solution temperature is room temperature, the corrosion time is 2min, and the solution stirring speed is about 120rpm;
[0034] The fourth step, rinse with running cold water for 1min;
[0035] The fifth step, drying, dry with 60 ℃ hot air.
[0036] Chemical milling:
[0037] The first step is to apply a protective layer. The selection of protective glue is based on national standards. It can neither have harmful effects on the workpiece, but also can protect it from corrosion b...
Embodiment 2
[0049] The first step is to select 1.2mm thick 2024-T3 aluminum alloy and use wire to cut into 40mm×40mm×1.2mm small samples to prepare 3 pieces;
[0050] The second step, alkaline washing and photochemical treatment, fix the 2024 alloy on the hanger, select 40% NaOH alkaline washing solution for 5 minutes, the alkaline washing temperature is room temperature, and the solution stirring speed is about 120rpm;
[0051] The third step, photochemical treatment, the photochemical solution is 30% HNO 3 Solution, the solution temperature is room temperature, the corrosion time is 2min, and the solution stirring speed is about 120rpm. Attention should be paid to avoid the contact between the workpieces and the formation of air pockets during corrosion, which will eventually lead to uneven corrosion;
[0052] The fourth step, rinse with running cold water for 1min;
[0053] The fifth step, drying, dry with 60 ℃ hot air.
[0054] Chemical milling:
[0055] The first step is to apply ...
Embodiment 3
[0067] The first step is to select 1.8mm thick 2024-T3 aluminum alloy and cut it into 40mm×40mm×1.8mm small samples to prepare 3 pieces;
[0068] The second step, alkaline washing and photochemical treatment, fix the 2024 alloy on the hanger, select 40% NaOH alkaline washing solution for 5 minutes, the alkaline washing temperature is room temperature, and the solution stirring speed is about 120rpm;
[0069] The third step, photochemical treatment, the photochemical solution is 30% HNO 3 Solution, the solution temperature is room temperature, the corrosion time is 2min, and the solution stirring speed is about 120rpm. Pay attention to avoid the contact between the workpieces and the formation of air pockets during corrosion, which will eventually lead to uneven corrosion;
[0070] The fourth step, rinse with running cold water for 1min;
[0071] The fifth step, drying, dry with 60 ℃ hot air.
[0072] Chemical milling:
[0073] The first step is to apply a protective layer. ...
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