Technical anodizing is a classic anodizing process performed in acidic electrolyte at a temperature slightly below ambient. An external power source is used, while the workpiece is used as anode. Anodized metal finishes provide many benefits, including a higher breaking strength, and an increased corrosion and wear protection. This electrochemical process is most frequently used to create anodized aluminum sheets and components, but we also provide anodized titanium finishes.
As a typical anodizing process, technical anodizing is carried out just below room temperature in an acid electrolyte. An external current source is used, with the workpiece to be coated connected as the anode.
The surface of the aluminum base material is transformed into aluminum oxide. One third of the coating created with technical anodizing grows out of the metal, whereas two thirds grow into it. That is why the bond between the coating and the base material is extraordinarily strong. What is more, coatings created with technical anodizing can meet different decorative requirements. To this end, preliminary treatments such as pickling, grinding, sandblasting or polishing are performed.
Aluminum-based alloys are becoming ever more popular as industrial construction materials. The low weight reduces inertia, which in turn saves energy. The disadvantage: aluminum alloys are prone to wear and corrosion.
Technical anodizing of metals such as aluminum or titanium is a functional coating solution delivering both protective and decorative results.
Anodization also makes dyeing possible: anodized aluminum and titanium can come in various colors, to achieve the functional or decorative effect desired. At Aalberts surface technologies, we offer, for example, both natural and black anodized aluminum finishes, but other colors are also possible using pigments.