A kind of preparation method and application of titanium or titanium alloy surface wear-resistant and bacteriostatic bioactive ceramic membrane
A technology of bioactive ceramics and titanium alloys, applied in surface reaction electrolytic coatings, electrolytic coatings, dental implants, etc., can solve problems such as difficult to meet production needs, insufficient bonding force of the substrate, and mismatching mechanical properties, etc., to achieve cost Low, improved mechanical engagement, combined with good results
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Embodiment 1
[0054] 1. Material preparation: After the pure titanium is cut and polished, it is cleaned and degreased by ultrasonic waves in acetone solution.
[0055] 2. Sandblasting: The silica sand particle size for sandblasting is 0.2mm, the compressed air strength is 0.2MPa, the surface roughness of the obtained substrate is Ra3.0μm, and the sandblasting equipment is RH-1010P high-pressure dry sandblasting machine.
[0056] 3. Chemical passivation: In passivation solution, 40% (volume concentration) HF is 2mL / L, 70% (volume concentration) HNO 3 10mL / L, the volume ratio is 1:5, and the rest is water. The temperature is room temperature, and it is treated for 2 minutes. After taking it out, it is washed with tap water for 1 to 2 minutes, and then with deionized water for 1 to 2 minutes. The thickness of the passivation film is 1 μm.
[0057] 4. Forward square wave pulse micro-arc oxidation ceramic film preparation: electrolyte: concentration of 0.3mol / L calcium acetate, concentration o...
Embodiment 2
[0064] 1. Material preparation: After the pure titanium is cut and polished, it is cleaned and degreased by ultrasonic waves in acetone solution.
[0065] 2. Sandblasting: the silica sand particle size for sandblasting is 0.8mm, the compressed air strength is 0.5MPa, the surface roughness of the obtained substrate is Ra5.0μm, and the sandblasting equipment is RH-1010P high-pressure dry sandblasting machine.
[0066] 3. Chemical passivation: In the passivation solution, 40% (volume concentration) HF is 2ml / L, 70% (volume concentration) HNO 3 8ml / L, the volume ratio is 1:4, and the rest is water. The temperature is room temperature, and it is treated for 3 minutes. After taking it out, it is immediately washed with tap water for 1 to 2 minutes, and then with deionized water for 1 to 2 minutes. The thickness of the passivation film is 1 μm.
[0067] 4. Forward square wave pulse micro-arc oxidation ceramic film preparation: electrolyte: calcium dihydrogen phosphate with a concent...
Embodiment 3
[0074] 1. Material preparation: After the titanium alloy (Ti6Al4V) is cut and polished, it is cleaned and degreased by ultrasonic waves in acetone solution.
[0075] 2. Sandblasting: The silica sand particle size for sandblasting is 1.0mm, the compressed air strength is 0.6MPa, the surface roughness of the obtained substrate is Ra4.0μm, and the sandblasting equipment is RH-1010P high-pressure dry sandblasting machine.
[0076] 3. Chemical passivation: in the passivation solution, 70% (volume concentration) HNO 3 4ml / L, HNO 3 8ml / L, the volume ratio is 1:4, and the rest is water. The temperature is room temperature, treated for 5 minutes, immediately washed with tap water for 1 to 2 minutes after taking it out, and then washed with deionized water for 1 to 2 minutes, and the passivation film thickness is 1 μm.
[0077] 4. Forward square wave pulse micro-arc oxidation ceramic film preparation: electrolyte: calcium glycerophosphate with a concentration of 0.25mol / L, sodium polyph...
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