Surface modification treatment method of magnesium alloy products
A treatment method and surface modification technology, which is applied in the coating process of metal materials, etc., can solve the problems of uneven conversion coating, poor adhesion performance, and unstable solution, so as to improve the competitiveness of enterprises, save resources, and increase production capacity. short time effect
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[0023] 1. Configure reagents
[0024] A. Configure degreasing solution
[0025] Weigh 80 grams of sodium hydroxide, dissolve, and then add purified water to dilute to 1 liter.
[0026] B. Configure pickling activation solution
[0027] Weigh 80 grams of 50% hydrofluoric acid and 32 grams of ethylene glycol, add a small amount of pure water and stir to fully dissolve, add pure water to dilute to 1 liter, and obtain a pickling activation solution.
[0028] C. Configure alkaline washing solution
[0029] Weigh 200-250 grams of sodium hydroxide, add a small amount of distilled water to dissolve, and then dilute to 1 liter with purified water.
[0030] D. Configure modified solution
[0031] Weigh 60-100 grams of phosphoric acid, 40-60 grams of calcium hydroxide, 1-4 grams of sodium fluoride, 2-6 grams of zinc phosphate, and 3-8 grams of sodium chloride to prepare 1 liter of solution.
[0032] 2. Take AZ91D magnesium alloy material for surface modification treatment:
[0033]...
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