Preparation method of tungsten boride composite coating
A composite coating, tungsten boride technology, applied in the coating, metal material coating process, melt spraying and other directions, can solve the problems of complex process, high cost, low toughness, etc., to achieve simple preparation process, low price, High density effect
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Embodiment 1
[0038] The first step is to prepare tungsten oxide / boron carbide / aluminum composite powder for thermal spraying:
[0039] Mix aluminum powder with a particle size range of 0.1 micron to 10 microns, tungsten oxide powder with a particle size range of 0.001 micron to 10 microns, and boron carbide powder with a particle size range of 0.001 micron to 10 microns to form a composite powder. Wherein, boron carbide powder accounts for 5% by weight of the total mass of the three raw material powders, aluminum powder plus tungsten oxide powder accounts for 95% by weight of the total mass of the three raw material powders, and the weight percentage between the tungsten oxide powder and the aluminum powder The weight ratio is 60:40, and then uniformly mixed into the binder polyvinyl alcohol, the amount of the binder polyvinyl alcohol is, the weight ratio is the above-mentioned composite powder: polyvinyl alcohol = 100:0.1, thus formulated for use in Thermally sprayed tungsten oxide / boron ...
Embodiment 2
[0045] The first step is to prepare tungsten oxide / boron carbide / aluminum composite powder for thermal spraying:
[0046] Mix aluminum powder with a particle size range of 0.1 micron to 10 microns, tungsten oxide powder with a particle size range of 0.001 micron to 10 microns, and boron carbide powder with a particle size range of 0.001 micron to 10 microns to form a composite powder. Wherein, boron carbide powder accounts for 10% by weight of the total mass of the three raw material powders, aluminum powder plus tungsten oxide powder accounts for 90% by weight of the total mass of the three raw material powders, and the weight percentage between the tungsten oxide powder and the aluminum powder The weight ratio is 85:15, and then uniformly mixed into the binder polyvinyl alcohol, the amount of the binder polyvinyl alcohol is, the weight ratio is the above-mentioned composite powder: polyvinyl alcohol=100:1, thus formulated for use in Thermally sprayed tungsten oxide / boron car...
Embodiment 3
[0053] The first step is to prepare tungsten oxide / boron carbide / aluminum composite powder for thermal spraying:
[0054] Mix aluminum powder with a particle size range of 0.1 micron to 10 microns, tungsten oxide powder with a particle size range of 0.001 micron to 10 microns, and boron carbide powder with a particle size range of 0.001 micron to 10 microns to form a composite powder. Wherein, boron carbide powder accounts for 30% by weight of the total mass of the three raw material powders, aluminum powder plus tungsten oxide powder accounts for 70% by weight of the total mass of the three raw material powders, and the weight percentage between tungsten oxide powder and aluminum powder The weight ratio is 90:10, and then uniformly mixed into the binder methylcellulose, the amount of the binder methylcellulose is, the weight ratio is the above composite powder: methylcellulose=100:2, thus preparing into tungsten oxide / boron carbide / aluminum composite powder for thermal sprayi...
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