oxidation of copper heat sink
Will copper oxidize? How long will it oxidize
Copper will begin to react with oxygen in the air to form copper oxide. Over time, copper oxide will continue to react with oxygen. When copper oxide continues to react with carbon dioxide and water in the air, it will be coated with a signature blue-green color on the surface.
The hazards of copper oxide
1. The thermal conductivity effect is affected. Copper oxide will form an oxide film on the surface of the copper heat sink, which will have a certain impact on the heat dissipation effect of the heat sink.
2. Aesthetics. The color of copper oxide is blue-green, which is significantly different from the color of pure copper, and the copper heat sink is oxidized, resulting in a different color on the surface.
How to remove copper oxide
When the copper heat sink exhibits oxidation, we can clean it by aligning it with the surface treatment process of oxidation resistance. This surface treatment can form an anti oxidation film on the surface of the copper heat sink, thereby ensuring the quality of the heat sink.
Copper washing process
1. Cleaning: Clean the surface dust and dirt of copper heat sink
2. Pickling: Remove oxides and dirt on the surface of copper products by using an acidic solution
3. Polishing: By polishing, the surface of copper heatsink becomes smoother and brighter
4. Protection: Apply a layer of protective agent on the surface of copper heatsink to effectively prevent oxidation.
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