Heat conduction radiation heat dissipation composite coating applicable to titanium alloy
A composite coating, radiation heat dissipation technology, applied in metal material coating process, coating, superimposed layer plating and other directions, can solve the problems of low thermal conductivity, poor infrared radiation heat dissipation performance, etc., to improve thermal conductivity, Reduce interface contact thermal resistance and improve thermal conductivity
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Embodiment 1
[0031] The composite coating of the present embodiment is prepared by the following steps:
[0032] Step 1. Copper powder with a particle size of 20 μm to 40 μm is sprayed on the surface of the titanium alloy by cold spraying to form a mesh metal structure layer; the pressure of the cold spraying is 1 MPa, the spraying distance is 20 mm, the spraying gas is nitrogen, and the spraying gas The preheating temperature is 350°C; the shape of the mesh in the mesh metal structure layer is a parallelogram, the acute angle of the parallelogram is 45°, the length of the bottom edge is 10mm, and the height is 10mm. The mesh metal structure layer The thickness is 5mm;
[0033] Step 2, adding the powder of the nano-SiC-spinel-oxide composite material into the water glass solvent, then adding the phenolic resin to obtain a mixed slurry, which is sprayed on the mixed slurry obtained in step 1 by spraying curing method On the mesh metal structure layer, dry and solidify at 120°C to form a no...
Embodiment 2
[0036] The composite coating of the present embodiment is prepared by the following steps:
[0037] Step 1. Spray aluminum powder with a particle size of 20 μm to 40 μm on the surface of the titanium alloy by cold spraying to form a mesh metal structure layer; the pressure of the cold spraying is 2 MPa, the spraying distance is 40 mm, the spraying gas is nitrogen, and the spraying gas The preheating temperature is 220°C; the shape of the mesh in the mesh metal structure layer is a parallelogram, the acute angle of the parallelogram is 90°, the length of the bottom edge is 30mm, and the height is 30mm. The mesh metal structure layer The thickness is 10mm;
[0038] Step 2, adding the powder of the nano-SiC-spinel-oxide composite material into the water glass solvent, then adding the phenolic resin to obtain a mixed slurry, which is sprayed on the mixed slurry obtained in step 1 by spraying curing method On the mesh metal structure layer, dry and solidify at 120°C to form a non-...
Embodiment 3
[0041] The composite coating of the present embodiment is prepared by the following steps:
[0042] Step 1. Spray gold powder with a particle size of 20 μm to 40 μm on the surface of the titanium alloy by cold spraying to form a mesh metal structure layer; the pressure of the cold spraying is 1 MPa, the spraying distance is 20 mm, the spraying gas is nitrogen, and the spraying gas The preheating temperature is 350°C; the shape of the mesh in the mesh metal structure layer is a parallelogram, the acute angle of the parallelogram is 45°, the length of the bottom edge is 10mm, and the height is 10mm. The mesh metal structure layer The thickness is 5mm;
[0043] Step 2, adding the powder of the nano-SiC-spinel-oxide composite material into the water glass solvent, then adding the phenolic resin to obtain a mixed slurry, which is sprayed on the mixed slurry obtained in step 1 by spraying curing method On the mesh metal structure layer, dry and solidify at 120°C to form a non-metal...
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Abstract
Description
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Application Information
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