Anti-corrosion coating, heat exchanger applying anti-corrosion coating and coating method
An anti-corrosion coating and heat exchanger technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of complex construction process, insufficient anti-corrosion performance, and no functionality, achieve good overall uniformity, and ensure the overall coating. The effect of uniformity and corrosion resistance improvement
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Embodiment 1
[0051] (1) Pretreatment of heat exchanger:
[0052] The heat exchanger 100 is subjected to dedusting, degreasing and degreasing and passivation treatment respectively;
[0053] (2) Coating:
[0054] Immerse the heat exchanger 100 as a whole in the solution of the hydrophobic silicone nano-coating 200 with a concentration of 20%, let it stand for 10-30 seconds, take out the heat exchanger 100 and remove the liquid on its surface, and place the heat exchanger 100 at 100- In an oven at 150°C, let it stand still for 5-10 minutes; repeat the above actions, and then place the heat exchanger 100 in an oven at 150-200°C, and let it stand for 10-30 minutes, so that the hydrophobic silicone nano-coating 200 is cured, and then heat exchange The surface of the heat exchanger 100 is sprayed with a fluorocarbon resin coating 300, and after the fluorocarbon resin coating 300 is cured, the heat exchanger 100 is taken out and allowed to stand at room temperature.
[0055] Preferably, the fil...
Embodiment 2
[0057] (1) Pretreatment of heat exchanger:
[0058] The heat exchanger 100 is subjected to dedusting, degreasing and degreasing and passivation treatment respectively;
[0059] (2) Coating:
[0060] Immerse the heat exchanger 100 as a whole in the solution of the hydrophobic silicone nano-coating 200 with a concentration of 30%, let it stand for 10-30 seconds, then take out the heat exchanger 100 and remove the liquid on its surface, and place the heat exchanger 100 in Stand in an oven at 150-200°C for 10-30 minutes to cure the hydrophobic silicone nano-coating 200, then take out the heat exchanger 100 and let it stand at room temperature.
Embodiment 3
[0062] (1) Pretreatment of heat exchanger:
[0063] The heat exchanger 100 is subjected to dedusting, degreasing and degreasing and passivation treatment respectively;
[0064] (2) Coating:
[0065] Immerse the heat exchanger 100 as a whole in the solution of the hydrophobic silicone nano-coating 200 with a concentration of 20%, let it stand for 10-30s, then take out the heat exchanger 100 and remove the liquid on its surface, and place it at 100-150°C In the oven, let it stand for 5-10 minutes; repeat the above actions, then place the heat exchanger 100 in an oven at 150-200 ° C, and let it stand for 10-30 minutes to cure the hydrophobic silicone nano-coating 200, then take out the heat exchanger 100 Let stand to room temperature.
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