Pickling, a treatment that consists of cleaning the surface of the object
Pickling is a treatment that consists of cleaning the surface layer of the object. The aim is to remove any impurities left by previous treatments that have released oxides, which happens for example in the processes of forging and hot rolling or in any case in processes that involve the use of high temperatures.
Unlike degreasing, pickling does not therefore deal with dissolving oily substances but with eliminating other types of residues.
What is it for
In the case of metal pickling - one of the services offered by Bama - the treatment eliminates the layer of surface oxide and removes impurities from other manufacturing processes. The entire treatment aims to make the material suitable for the subsequent stages, such as the application of an anti-corrosion layer.
The pickling then disintegrates all the iron compounds that are present on the surface of the object. These are, in fact, the ones responsible for the deterioration in contact with the atmospheric agents.
The pickling treatment is therefore applied to different types of metals. These include stainless steel, aluminium, carbon steel, copper and titanium, but also nickel and zirconium, all of which have different resistance to oxidation. Bama also performs this procedure on stainless steel in order to ensure complete protection from oxidation even on materials known to be resistant.
