Aluminum plate before etching need to use the mechanical method to remove the surface of the burr, melting line and casting residue, and then degreased by alkaline degreasing agent for erosion. It should be noted that aluminum plate is variety, in the erosion according to different materials to choose a different etching agent.
The bright erosion of the aluminum plate is carried out in an acidic etchant. Acid etching agent often use sulfuric acid, nitric acid, chromic acid and phosphoric acid. The presence of nitric acid easily lead to a large number of yellow smoke generated, polluting the environment. The use of phosphoric acid and sulfuric acid with some sulfur-containing heterocyclic organic matter can replace nitric acid, its gloss is very good. Only the surface gloss is not rusty 6061 aluminum prices are relatively impressive.
In alkaline etchants commonly used caustic soda, soda ash and trisodium phosphate, plus a small amount of surfactant. Antirust 6061 aluminum plate can be carried out in general alkaline degreasing agent, the temperature should be above 40 ℃.
We can supply 6061 aluminum plate according to the thickness:
0.15mm-2.0mm thin aluminum plate
2.0mm-6.0mm common thickness aluminum plate
6.0mm-25.0mm Medium thickness aluminum plate
25mm-200mm thick aluminum plate
More than 200mm ultra-thick aluminum plate