What is an anodized screw?

The anodized screw is a special type of metal fastener where natural oxidation on the metal surface was improved for various reasons. Anodized products can be treated in this way for their color coding, such as their use in surgery in the medical area, and to ensure an increased level of resistance to wear and corrosion. The most common type of metal, which has been anodized since 2011 for anodized screw, is aluminum due to its natural corrosion resistance above resistance to harder metals such as steel and iron. Other types of metals that can be made in an anodized screw for special applications include magnesium and titanium screws used in highly stress metal parts, such as in the aircraft design.

anodized screw is often used to assemble structures exposed to natural weather conditions, along with other types of these anodized fasteners such as ELOxed screws. Thepovrch coating for most anodized products is oxide of the basic metal itself, with aluminum having an anodized aluminum oxide surface, al _{2 3 . These coatings are very durable compared to other types of corrosion resistant, as they are an integral part of the basic molecular structure of the metal itself, which is strongly associated with it. The disadvantage of anodized screw is that the surface is prone to a decay in a high alkaline or acidic environment. Because the process of anodization also creates a very thin surface layer, which usually ranges from 2 microns to 25 microns, it can become fragile and rupture or flake with age and wear.}

Enected products are also relatively common in the jewelry industry, where the layer of titanium oxide is covered on other metals such as nickel. This is done because titanium can come into contact with the inner or external surface of the body through jewelry or medical implants without a wayAny kind of undesirable reaction, while other commonly used metals such as nickel may cause allergic reactions in some individuals. Titanium anodized screw fasteners are therefore often used to hold medical devices and implants.

Another advantage of an anodized screw or other fastener is that the surface has a coefficient of friction than a base metal known as a non -galling surface that allows moving parts to work with less likely to jam. One of the main applications that uses this feature is in the monuments and controls of the screw threads, where the screw is used to fine adjust the setting on the machine part or the instrument panel meter. The lower level of friction is also facilitated by an anodized screw with easier cleaning of lubricants and residues when it is covered in these parts over time.

There are two main types of anodizing process, including a firm anodization or anoding a hard basket and mass anodization that use sulfuric acidovou. Hardheloxing is performed by applying electric current in an electrolyte bath usually larger than screws on the aluminum parts, and this type of coating can be stronger than the steel decorated with a housing after completion. Mass anoding is done at doses of small parts with odd shapes such as anodized screw or rivet, where they are coated together in a large number of plastic or titanium baskets. Sulfuric acid in both processes is used to oxidize the surface layer of the metal and can simultaneously be used to be a texture or color. One of the anodized products where these effects are best known are in non -stick dishes and kitchen equipment.