Method for preparing abrasion-resistant super-hydrophobic ceramic coating through thermal spraying technology and product
A ceramic coating and super-hydrophobic technology, applied in the coating, metal material coating process, fusion spraying, etc., can solve the complex process, difficult to achieve large-area super-hydrophobic surface preparation, and industrial application, etc., to achieve Good wear resistance, good self-cleaning property and long service life
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[0033] Example 1
[0034] In this embodiment, 316 stainless steel with a thickness of about 2mm is taken as the substrate, and the specific preparation method of the wear-resistant super-hydrophobic coating is as follows:
[0035] (1) Clean the substrate with acetone, hydrochloric acid, and deionized water in turn, and use 60-mesh brown corundum sand to roughen the surface of the substrate. The air pressure used for sandblasting is 0.5Mpa, and the sandblasting time is 10 seconds. The mesh number of sand shot is 100 mesh to increase the surface roughness of the substrate and improve the bonding strength of the coating;
[0036] (2) Using the method of plasma spraying, to TiO 2 Powder (average particle size is 100μm) is used as spraying material, and the spraying parameters of plasma spraying are controlled as follows: arc voltage 40V, arc current 300A, main air flow 40L / min, auxiliary air flow 12L / min, powder feeding speed 50g / min, spraying distance 150mm;,
[0037] (3) usin...
Example Embodiment
[0042] Example 2
[0043] In this embodiment, in order to study the microscopic characteristics of the coating, different controllable micropattern structures are prepared based on 316 stainless steel in this embodiment. The specific operations are as follows:
[0044] (1) Clean the substrate with acetone, hydrochloric acid, deionized water, etc. in turn, and use 60-mesh brown corundum sand to roughen the surface of the substrate. The air pressure used for sandblasting is 0.6MPa to increase the surface roughness of the substrate. Meet the roughness requirements of spraying;
[0045] (2) In order to realize the micro-patterning of the ceramic coating, 200 mesh, 120 mesh, and 80 mesh stainless steel meshes were used as the spray substrate in the plasma spraying process;
[0046] (3) Using the method of plasma spraying, to TiO 2The powder (average particle size is 100μm) is used as the spraying material. The spraying parameters for controlling the plasma spraying are: arc volta...
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