Degradable magnesium alloy bone nail with scaly bone-like nanostructure coating and preparation method thereof
A nanostructure, magnesium alloy technology, applied in coatings, surface reaction electrolytic coatings, medical preparations containing active ingredients, etc., to achieve the effect of dense coating, high bonding strength, and improved bone formation ability
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Embodiment 1
[0027] (1) First, choose AZ31B magnesium alloy to process the bone nail;
[0028] (2) Bone nail pretreatment: AZ31B magnesium alloy bone nails are polished and polished step by step with metallographic sandpaper with labels of 600#, 800#, and 1000# from coarse sand to fine sand, and then use acetone, 70% alcohol, Ultrasonic cleaning with distilled water and drying for later use.
[0029] (3) Configuration of electrolyte solution: use sodium phosphate solution system, prepare 10L of sodium phosphate solution with a concentration of 5g / L and sodium hydroxide solution with a concentration of 2g / L, for use;
[0030] (4) Micro-arc oxidation of bone nails: place the AZ31B magnesium alloy bone nails in the electrolytic cell of the bipolar pulse micro-arc oxidation equipment and add the prepared electrolyte solution, use the AZ31B magnesium alloy bone screws as the anode, and the stainless steel electrolytic cell as Cathode, adjust process parameters to carry out micro-arc oxidation ...
Embodiment 2
[0035] (1) First, choose AZ31B magnesium alloy to process the bone nail;
[0036] (2) Bone nail pretreatment: AZ31B magnesium alloy bone nails are polished and polished step by step with metallographic sandpaper with labels of 600#, 800#, and 1000# from coarse sand to fine sand, and then use acetone, 70% alcohol, Ultrasonic cleaning with distilled water and drying for later use.
[0037] (3) Configuration of electrolyte solution: use sodium phosphate solution system, configure 10L sodium phosphate solution with a concentration of 10g / L and sodium hydroxide solution with a concentration of 1g / L for use;
[0038] (4) Micro-arc oxidation of bone nails: place the AZ31B magnesium alloy bone nails in the electrolytic cell of the bipolar pulse micro-arc oxidation equipment and add the prepared electrolyte solution, use the AZ31B magnesium alloy bone screws as the anode, and the stainless steel electrolytic cell as Cathode, adjust process parameters to carry out micro-arc oxidation o...
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