Matters needing attention in copper etching process

In addition to etching stainless steel, molybdenum and titanium, there is a special kind of copper etching in metal etching. Compared with aluminum etching, copper etching is easier to process than aluminum, because the activity of aluminum is easy to produce strong chemical reactions such as high temperature when it comes into contact with chemicals, which leads to the complexity of its process. For copper etching, copper alloys can be classified into brass, bronze and white copper. Among them, there are red copper, oxygen-free copper, pure copper, etc. The etching solution of copper is different from that of stainless steel, and the waste liquid can be reused. However, due to the characteristics of copper, the copper etching solution has the advantages of fast reaction speed, low use temperature and relatively easy post-treatment, which has less environmental pollution. Copper etching has a wide range of applications, including copper spectacle frames, copper gaskets, copper handicrafts, etc., which can meet the thickness of 0.01MM-2MM-2 mm. Due to the oxidation of copper, attention should be paid to the surface treatment and the protection of copper in specific environment.