How do different surface treatments affect the performance of copper plates?

Influence of Different Surface Treatments on Copper Plate Performance

Overall, mechanical grinding combined with chemical passivation is key for boosting strength and corrosion resistance, while electroplating or immersion plating excels in electrical reliability and wear resistance, albeit with a minor trade‑off in conductivity.
In terms of environmental protection and recycling, what is the reutilization rate of copper plates?
Environmental and Recycling Aspects – Re‑utilization Rate
National standards require a recycling rate of at least 50 % for copper and high‑copper alloys, and ≥ 75 % for brass.
Industrial practice shows that modern copper‑plate recycling processes (wet crushing + hydrocyclone, fire‑wet combined methods) achieve 98–99 % metal copper recovery.
The International Copper Association notes that copper has a 100 % recycling potential; recycled copper performs virtually identically to primary copper, and its production saves about 85 % energy, dramatically lowering carbon emissions.
Waste copper‑clad laminates, processed through crushing, sorting, and wet extraction, attain copper‑powder recovery rates of 96–99 %, with residual copper content of only 0.5–1.5 % (equivalent to ore grade).