Stainless steel etched panels are based on mirror plates, hairline plates, and sandblasting plates, which by using chemical corrode the stainless steel surface, then making different patterns on surface. After corroded,we do further processed on surface , such as: making hairline on part of the surface, PVD coating on some parts.The stainless steel plate achieves the effect of bright and dark patterns and brilliant colors.
The etching process is as follows
- Pre-etching treatment
We must clean and remove the oil and oxide film on the metal surface completely, which is a key important procedure to ensure the etched oil has a good adhesion to the metal surface.
- Cleaning surface
Clean the metal surface oil should be based on the oily conditions of the products to determine the plan. Electro-cleaning oil before the etched to ensure the effect of cleaning.
3.Removing the oxide film
We should select a good etching solution according to the type of metal and film thickness to ensure that the surface is clean.
4.Keep drying
This is very important,there will be bad effect if have water on metal surface, which will damage the patterns, make it not perfect match.
5.We should produce standard etching pattern that match the designs,which needs the skill of etching and experience.
Under the action of light, the glue film of the etching produces a photo chemical reaction, so that the illuminated part is cross-linked into a water-insoluble glue film; and the non-illuminated part is dissolved by water,the non-glue film exposed , so the pattern is lithographically engraved on the surface to match the pattern of the black and white positive film.
