Preparation method of internal heating evaporation basket with aluminum liquid corrosion resistant composite ceramic coating
A composite ceramic, internal heating technology, applied in coating, metal material coating process, melting spray plating, etc., can solve the problems of poor thermal conductivity, thermal brittleness sensitivity, easy cracking, etc., to achieve low porosity and prolong service life. , the effect of reducing manufacturing production costs
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Embodiment 1
[0029] Prepared by atmospheric plasma spraying technology with Al 2 o 3 -8YSZ internal heating evaporation basket for corrosion-resistant coating, including the following steps:
[0030] (1) Machining: Use high-purity tungsten wire with a length of 10cm and a wire diameter of 1mm to wind a top diameter of 15mm and a height of 15mm to form a single-strand conical filamentary evaporation basket as the base material ( figure 2 );
[0031] (2) Substrate surface treatment: The surface of the tungsten wire evaporation basket to be sprayed is roughly ground with silicon carbide sandpaper, then immersed in 60g / L NaOH solution for 0.5h for degreasing treatment, and the surface coating treatment is carried out on the parts not to be sprayed, and finally Then carry out coarsening treatment, mainly using GP-1 dry sandblasting machine produced by Beijing Changkong Sandblasting Equipment Co., Ltd., the sandblasting material is 20 mesh brown corundum sand, the process parameters are sandb...
Embodiment 2
[0037] (1) Machining: Use high-purity tungsten wire with a length of 10cm and a wire diameter of 1mm to wind a top diameter of 15mm and a height of 15mm to form a single-strand conical filamentary evaporation basket as the base material ( figure 2 );
[0038] (2) Substrate surface treatment: The surface of the tungsten wire evaporation basket to be sprayed is roughly ground with silicon carbide sandpaper, then immersed in 60g / L NaOH solution for 0.5h for degreasing treatment, and the surface coating treatment is carried out on the parts not to be sprayed, and finally Then carry out coarsening treatment, mainly using GP-1 dry sandblasting machine produced by Beijing Changkong Sandblasting Equipment Co., Ltd., the sandblasting material is 20 mesh brown corundum sand, the process parameters are sandblasting air pressure 0.7Mpa, and the spray angle is 75~ 90°, the spray distance is 120mm, the purpose is to enhance the mechanical combination of the spray powder and the substrate; ...
Embodiment 3
[0044] (1) Machining: Use high-purity tungsten wire with a length of 10cm and a wire diameter of 1mm to wind a top diameter of 15mm and a height of 15mm to form a single-strand conical filamentary evaporation basket as the base material ( figure 2 );
[0045] (2) Substrate surface treatment: The surface of the tungsten wire evaporation basket to be sprayed is roughly ground with silicon carbide sandpaper, then immersed in 60g / L NaOH solution for 0.5h for degreasing treatment, and the surface coating treatment is carried out on the parts not to be sprayed, and finally Then carry out coarsening treatment, mainly using GP-1 dry sandblasting machine produced by Beijing Changkong Sandblasting Equipment Co., Ltd., the sandblasting material is 20 mesh brown corundum sand, the process parameters are sandblasting air pressure 0.7Mpa, and the spray angle is 75~ 90°, the spray distance is 120mm, the purpose is to enhance the mechanical combination of the spray powder and the substrate; ...
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