Anodizing is an electrochemical process used to create an oxide layer on the surface of a metal, usually aluminium, with the aim of improving corrosion resistance and aesthetic appearance. This oxide layer is harder and stronger than the base metal, making it particularly useful in many industrial and decorative applications.
Located in the heart of Lombardy, Alpine Anodizing is a highly automated company dedicated to the continuous production of anodized aluminium coils, with a wide range of solutions that meet the needs of different industrial sectors.
The anodizing process is developed in three phases:
- Preparation: before starting the anodizing process, the metal must be cleaned to remove impurities, oils and other contaminants. This may include chemical washing, degreasing and rinsing.
- Anodizing: the aluminium is immersed in an electrolytic bath (often sulphuric acid) and connected as an anode in an electrical circuit. As the electric current passes through the bath, oxygen combines with the metal to form an oxide layer on the surface of the part. The thickness and properties of this layer can be controlled by adjusting the anodizing time, current density and composition of the electrolyte bath.
- Sealing: after anodizing, to further increase corrosion resistance, aluminium is often sealed by immersing it in boiling water or specific solutions that close the pores of the oxide coating.
Alpine Anodizing represents a point of reference for those looking for quality and innovation in this field and is part of a strategic sector in terms of circular economy and decarbonization of industrial processes: anodizing, in fact, allows contained costs, production efficiency, uniformity of finish, durability and 100% recyclability, for products with multiple applications for exteriors, interiors and the food sector.
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