Generally, die casters will use aluminum, zinc, magnesium, and so on in pressure die casting. Aluminum is the best-suited raw material for manufacturing automobile components since they are a corrosion-resistant alloy and withstand temperatures to up to 200 degrees Fahrenheit or more. Besides that, aluminum components are used in household antennas, lighting fixtures, and marine hardware, among other components.
Although exposing aluminum dye to harsh environments has often induced the risk of corrosion, aluminum components tend to last longer when compared to other die cast alloys. Since aluminum has the capability to self-heal gradually even if the component is inclined to little corrosion, they are generally opted by Original Equipment Manufacturers in the automobile segment.
OEMs rely on aluminum wheels as they allow design changes during die casting and withstand wear and tear. Additionally, although raw aluminum may not be an appealing alloy, its corrosion-resistance is durable and allows several other surface finishes in post-treatment of the alloy.
Black hard anodizing of aluminum will make the component corrosion-resistant and that is a post-treatment method that compliments pressure die casting. However, alloy components can also be made of zinc as well and they also have excellent corrosion-resistance. Just like aluminum, zinc also has durability and gives freedom for surface finishes. If a cosmetic finish is more important for your project than longevity, zinc alloy might just be the ideal alloy you may want to die cast.
Ancillary industry often banks on zinc castings for decorative as well as functional appliances that do not require high temperatures, such as consumer electronic products, kitchen appliances, and key fobs, to name some. Where aluminum will allow room for painting, powder coating, Teflon coating, plating, as well as e-coating, zinc has all of that surface finishing options plus distinct plating options, electro-coating, and chromate options.
Corrosion-resistance attributes to how well a given metal resists damage due to oxidization or similar chemical reactions over time. For many Original Equipment Manufacturers, corrosion-resistant alloy translates to durable metal components that resist harsh environs while still serving the integral functions. While some clients pay heed to aesthetics, others keep the functionality of the component for long-term wear and tear a level above aesthetics. The good thing is that most die casters in Mexico have alloy options for whatever the function of the component may be.