Surface bright anodic oxidation coloring method for titanium and titanium alloy
An anodizing and titanium alloy technology, applied in the field of titanium and titanium alloys, can solve the problems of long process route, complex process steps and high cost, and achieve the effect of simplified process, good biocompatibility and high surface hardness
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Embodiment 1
[0029] First, ultrasonically clean in Micro-90 cleaning solution for 10 minutes, and the temperature of ultrasonic cleaning is 70°C. Then hang the degreased and cleaned miniature bone plate (TA3) on a special hanger as the anode, stainless steel as the cathode, at a temperature of 15°C and a current density of 10A dm -2 1. Anodize and color in an anodizing solution with a voltage of 30V for 1min, then rinse with purified water and dry with an air gun to obtain a colored surface oxide film. The anodic oxidation solution consists of: 20g L -1 Sodium ammonium hydrogen phosphate, 5mL·L -1 Phosphoric acid, 5g·L -1 ammonium fluoride.
Embodiment 2
[0031] First, ultrasonically clean in Micro-90 cleaning solution for 10 minutes, and the temperature of ultrasonic cleaning is 80°C. Then hang the degreased and cleaned miniature bone plate (TA3) on a special hanger as the anode, and stainless steel as the cathode. -2 1. Anodizing and coloring in an anodizing solution with a voltage of 50V for 5 minutes, then rinsed with purified water and dried with an air gun to obtain a colored surface oxide film. The anodic oxidation solution consists of: 50g L -1 Sodium ammonium hydrogen phosphate, 10mL·L -1 Phosphoric acid, 10g·L -1 ammonium fluoride.
Embodiment 3
[0033] First, ultrasonically clean in Micro-90 cleaning solution for 10 minutes, and the temperature of ultrasonic cleaning is 75°C. Then hang the degreased and cleaned locking screw (TC4) on a special hanger as the anode, and stainless steel as the cathode, at a temperature of 25°C and a current density of 8A·dm -2 1. Anodizing and coloring in an anodizing solution with a voltage of 50V for 7 minutes, then rinsed with purified water and dried with an air gun to obtain a colored surface oxide film. The anodic oxidation solution consists of: 100g L -1 Sodium ammonium hydrogen phosphate, 20mL·L -1 Phosphoric acid, 20g·L -1 ammonium fluoride.
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