Preparation method of high hardness and wear-resistant coating on titanium alloy substrate surface
A wear-resistant coating and titanium alloy technology, which is applied in metal material coating process, coating, pressure inorganic powder coating, etc., can solve the problems of poor wear resistance and high friction coefficient of titanium alloy materials
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Embodiment 1
[0040] Use sandpaper and acetone to remove the rust and oil stains on the surface of the TC4 titanium alloy plate substrate in turn, using 25 # Sand, use a sandblasting pressure of 0.3MPa to roughen the surface of the plate substrate, and then put the treated plate into a vacuum heating furnace to preheat to 250°C.
[0041] The 200-mesh H13 mold steel powder is prepared into a slurry, and under the action of a high-pressure pump, it enters the rotary chamber at a high speed from the tangential channel of the rotary disc atomizer at a feeding rate of 30mL / min. Under the action of the atomizer, extremely small mist droplets are formed. Under the pressure of the high-pressure pump, they enter the spray drying chamber at 210°C, and come into contact with the hot air that enters the spray drying chamber uniformly in a spiral shape, and mass transfer and heat transfer occur. Dry in a very short time to make spherical H13 mold steel powder with a particle size of 10µm.
[0042] Usin...
Embodiment 2
[0054] Use sandpaper and acetone to remove the rust and oil stains on the surface of the TC4 titanium alloy plate substrate in turn, using 30 # Sand, use a sandblasting pressure of 0.3MPa to roughen the surface of the plate substrate, and then put the treated plate into a vacuum heating furnace to preheat to 200°C.
[0055] The 200-mesh H13 mold steel powder is prepared into a slurry, and under the action of a high-pressure pump, it enters the rotary chamber at a high speed from the tangential channel of the rotary disc atomizer at a feeding rate of 25mL / min. Under the action of the atomizer, extremely small mist droplets are formed. Under the pressure of the high-pressure pump, they enter the spray drying chamber at 205°C, and come into contact with the hot air that enters the spray drying chamber uniformly in a spiral shape, and mass transfer and heat transfer occur. Dry in a very short time to make spherical H13 mold steel powder with a particle size of 25 μm.
[0056] Usi...
Embodiment 3
[0064] Use sandpaper and acetone to remove the rust and oil stains on the surface of the TC4 titanium alloy plate substrate in turn, using 35 # Sand, use a sandblasting pressure of 0.3MPa to roughen the surface of the plate substrate, and then put the treated plate into a vacuum heating furnace to preheat to 150°C.
[0065] 200-mesh H13 mold steel powder is prepared into a slurry, and under the action of a high-pressure pump, it enters the rotary chamber at a high speed from the tangential channel of the rotary disc atomizer at a feeding rate of 20mL / min. Under the action of the atomizer, extremely small mist droplets are formed. Under the pressure of the high-pressure pump, they enter the spray drying chamber at 200°C, and come into contact with the hot air that enters the spray drying chamber uniformly in a spiral shape, and mass transfer and heat transfer occur. Dry in a very short time to make spherical H13 mold steel powder with a particle size of 30 μm.
[0066] Using c...
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Abstract
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