Method for preparing dense electrophoretic coating on magnesium alloy surface
An electrophoretic coating, magnesium alloy technology, applied in the direction of coating, electrolytic coating, electrophoretic plating, etc., can solve the problem of uneven surface potential of magnesium alloy, easy corrosion of magnesium alloy, etc., to solve the problem of uneven potential, electrophoretic coating Uniform, corrosion-protecting effect
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Embodiment 1
[0043] (1) Polish the magnesium alloy with 150-mesh, 400-mesh, 800-mesh and 1200-mesh sandpaper, rinse with deionized water, and put it into acetone for 10 minutes of ultrasonication. Weigh 25g of sodium hydroxide, 7.5g of anhydrous sodium carbonate and 1g of sodium dodecylbenzenesulfonate and dissolve them in 500mL of water to make a lye, then put the magnesium alloy into the prepared lye, and place it in a water bath environment at 60°C Alkaline wash in.
[0044] (2) Take AlCl3 and 1-butyl-3-methylimidazole (BMIC) according to the ratio of molar ratio 2:1 and mix and prepare solution, take magnesium alloy as cathode, and the aluminum flake that purity is 99.99% is anode, cathode The distance from the anode is 1 cm. The constant current electrodeposition is adopted, the current density is 10mA / cm2, and the deposition time is 30 minutes for electroplating aluminum.
[0045] (3) The FY-0216 electrophoresis raw material was continuously stirred at room temperature for 48 hours...
Embodiment 2
[0048](1) Polish the magnesium alloy with 150-mesh, 400-mesh, 800-mesh and 1200-mesh sandpaper, rinse with deionized water, and put it into acetone for 10 minutes of ultrasonication. Weigh 25g of sodium hydroxide, 7.5g of anhydrous sodium carbonate and 1g of sodium dodecylbenzenesulfonate and dissolve them in 500mL of water to make a lye, then put the magnesium alloy into the prepared lye, and place it in a water bath environment at 60°C Alkaline wash in.
[0049] (2) Take AlCl3 and 1-butyl-3-methylimidazole (BMIC) according to the ratio of molar ratio 2:1 and mix and prepare solution, take magnesium alloy as cathode, and the aluminum flake that purity is 99.99% is anode, cathode The distance from the anode is 2 cm. The constant current electrodeposition is adopted, the current density is 15mA / cm2, and the deposition time is 30 minutes for electroplating aluminum.
[0050] (3) Stir the FY-0216 electrophoresis raw material continuously at room temperature for 48 hours to comp...
Embodiment 3
[0053] (1) Polish the magnesium alloy with 150-mesh, 400-mesh, 800-mesh and 1200-mesh sandpaper, rinse with deionized water, and put it into acetone for 10 minutes of ultrasonication. Weigh 25g of sodium hydroxide, 7.5g of anhydrous sodium carbonate and 1g of sodium dodecylbenzenesulfonate and dissolve them in 500mL of water to make a lye, then put the magnesium alloy into the prepared lye, and place it in a water bath environment at 60°C Alkaline wash in.
[0054] (2) Take AlCl3 and 1-butyl-3-methylimidazole (BMIC) according to the ratio of molar ratio 2:1 and mix and prepare solution, take magnesium alloy as cathode, and the aluminum flake that purity is 99.99% is anode, cathode The distance from the anode is 1 cm. The constant current electrodeposition is adopted, the current density is 10mA / cm2, and the deposition time is 35 minutes for electroplating aluminum.
[0055] (3) Stir the FY-0216 electrophoresis raw material continuously at room temperature for 48 hours to com...
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