A method of surface activation treatment on the surface of titanium alloy
A surface activation treatment, titanium alloy technology, applied in liquid chemical plating, gaseous chemical plating, metal material coating process, etc., can solve the problem of affecting the corrosion resistance of the final coating, unsuitable for manufacturing status, loss of protective effect, etc. , to achieve the effect of eliminating the risk of corrosion, low production cost and good activation effect
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Embodiment 1
[0047](1) After degreasing the parts, carry out rust removal treatment by liquid sandblasting, the abrasive particle size is 0.10mm, and the sandblasting time is 20 minutes. After blasting, a fine polish is achieved by mechanical grinding followed by ultrasonic cleaning in acetone solution followed by a deionized water rinse.
[0048] (2) Etch the parts after degreasing and derusting in the mixed solution of hydrochloric acid HCl 94% (volume fraction) + hydrofluoric acid HF 6% (volume fraction) at room temperature for 1 minute, and then rinse with deionized water.
[0049] (3) Activation treatment in a mixed solution of ethylene glycol, acidic ammonium fluoride, nickel chloride, boric acid, lactic acid, and acetic acid at a temperature of 40°C for 40 minutes, rinse with deionized water, and dry.
[0050] (4) Hot-dip coating.
Embodiment 2
[0052] (1) After degreasing the parts, carry out rust removal treatment by liquid sandblasting, the abrasive particle size is 0.12mm, and the sandblasting time is 15 minutes. After blasting, a fine polish is achieved by mechanical grinding followed by ultrasonic cleaning in acetone solution followed by a deionized water rinse.
[0053] (2) Etch the parts after degreasing and derusting in the mixed solution of hydrochloric acid HCl 95% (volume fraction) + hydrofluoric acid HF5% (volume fraction) at room temperature for 2 minutes, and then rinse with deionized water.
[0054] (3) Activation treatment in a mixed solution of ethylene glycol, acidic ammonium fluoride, nickel chloride, boric acid, lactic acid, and acetic acid at a temperature of 50°C for 35 minutes, rinse with deionized water, and dry.
[0055] (4) thermal spray coating.
Embodiment 3
[0057] (1) After degreasing the parts, carry out rust removal treatment by liquid sandblasting, the abrasive particle size is 0.15mm, and the sandblasting time is 10 minutes. After blasting, a fine polish is achieved by mechanical grinding followed by ultrasonic cleaning in acetone solution followed by a deionized water rinse.
[0058] (2) The parts after degreasing and derusting are etched in the mixed solution of hydrochloric acid HCl 96% (volume fraction) + hydrofluoric acid HF4% (volume fraction) at room temperature for 3 minutes, and then rinsed with deionized water.
[0059] (3) Thermal spraying, temperature 60°C, time 30min, rinse with deionized water, and dry.
[0060] (4) Electroplating coating.
[0061] Wherein, the composition and content of the activating solution of surface activation treatment in embodiment 1-3 are as shown in Table 1 below, and it should be noted that some preferred implementations of the composition and content of the activating solution of th...
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