Aluminium pickling prepares the material for exposure to atmospheric agents and treatments like passivation and anodization.
Bama technology and treatments
Bama performs aluminum pickling within its production site. With skilled personnel and advanced technology, aluminum pickling eliminates machining residues or inhomogeneous oxides from the surface of aluminum alloy items.
The Three Available Techniques
The first is the spray technique, which uses special guns to spray acidic or basic solutions onto the surface, providing an effective and quick action that can cover the entire surface in a few minutes. This manual technique is very useful for reaching all the hidden points of the object, especially if it has a particular shape.
The immersion technique remains the most commonly used: special tanks, specifically designed to resist the action of acids, hold the material, allowing the substances to do their work and return the object completely pickled. This method also minimizes contact with potentially hazardous substances.
Like stainless steel pickling, aluminum pickling aims to prepare the material for subsequent treatments such as passivation or anodization. It not only prepares the surface but also removes all oxides, chips, rust, or other residues from previous manufacturing stages.
The tools used for pickling are, in this case as well, three.
The only difference between aluminum pickling and stainless steel pickling lies in the intrinsic characteristics of the material.
Aluminum is amphoteric, which means it can exhibit both acidic and basic behavior. Consequently, aluminum pickling can be performed in both environments, providing a wider selection of suitable substances.
The result is still a flawless surface with all the characteristics inherent to aluminum.