What are anodized fasteners?
fastening elements may include nuts, screws and pads used to connect metal parts. They are used as connectors in vehicles, aircraft and ships. The aluminum metal can be soft, making it difficult to use for fastening objects, as the untreated metal can deform or break. The process called anodization creates a much harder metal finish and the anodized fastening elements are strong and resistant to wear or corrosion.
Anoding is an electrochemical process that uses electric current and an acidic chemical bath to create a hard surface on anodized fasteners. The process involves creating an aluminum oxide layer on the outer surface of parts. Rather than a coating, such as color, anodized surface is a molecular bond to aluminum metal below it, resulting in a very resistant surface.
The process uses an acid bath that provides oxygen for a chemical reaction. Anodized fasteners are connected to one side of the electrical circuit andThe entity is a separate metal electrodasted to the bathtub. When the parts enter acid, the electrical circuit is determined and the aluminum parts are oxidized on the surface to form aluminum oxide.
The anodly includes rapid oxidation or rusty aluminum surfaces of parts. Unlike normal rust, aluminum oxide forms a very thin, hard crystal structure that becomes a new surface. These surfaces may wear out over time, but can provide a long life with minimal deterioration, especially compared to pure aluminum.
It is important to use the same metals for all parts to prevent metals to prevent galvanic corrosion. This happens when a small electric current passes between different metals and softer metals, such as aluminum, can be damaged faster by galvanic action. In addition to strengthening metal, anodized fasteners are less exposed to galvanic corrosion because oxide HLinny Finish can block electric current.
Anodized fasteners are often used to adapt cars and one of the reasons is that the anodized surface can be easily colored to suit the user. The aluminum oxide level is porous, which means it contains many small cavities or holes to be perfectly smooth. These cavities can receive dyes or colored pigments, allowing parts to adapt in a wide range of colors. The color becomes a permanent part of the coating and no additional paintings are needed to maintain it.
other metals can be anodized, including titanium, which improves their resistance to corrosion in aircraft where parts are exposed to a wide range of temperature and humidity. Various acidic solutions can be used to ensure a number of oxide coatings depending on the specifications of the component. Sulfuric acid is the most common type of anodization and can create thin and relatively strong coatings. Chromeic acid is used when very thin coatings are needed, especially forParts requiring very close adaptation, known as close tolerances.