Aluminium square bars are popularly used for a myriad of applications due to their lightweight, durability, and resistance to corrosion. As one of the most versatile materials in construction, it is essential to give aluminium square bars a smooth and aesthetically pleasing surface finish. The right surface finish not only enhances the overall appeal of aluminium square bars but also adds a protective layer that prevents wear and tear. In this blog post, we will highlight the different surface finishing options available for aluminium square bars.
What are Aluminium Square Bars?
Aluminium Square Bars are aluminium alloy extrusion characterized by strength, formability and corrosion resistance. The raw material used for producing these bars starts with pure billet aluminium before undergoing an extrusion process. This involves forcing the hot aluminium through a die of the desired shape or profile to produce custom bars. Subsequently, the aluminium square aluminum bar is heat-treated and aged to increase its physical properties and strength.
Aside from industrial applications such as machine parts and components manufacturing, square aluminium bars can be used for home improvement projects such as kitchen remodelling or furniture making due to their low-cost yet highly useful attributes like non-combustibility, electrical insulation qualities, sustainability and recyclable nature. Also available in different sizes depending on the requirements – ranging between 6mm x 6mm up to 100mm x 100mm – square aluminium bars have become an important tool in industries requiring high-performance building materials that possess both malleability and resilience at once.
Different Surface Finishing of Aluminium Square Bars
Anodizing
Anodizing is a common surface finishing option that creates a protective layer on the surface of aluminium bars. This process involves treating the metal with an electrolyte solution and applying an electric current to create an oxide layer that is thicker than the natural oxide layer on the metal. The anodizing process offers a durable, low maintenance, and aesthetically appealing finish. Additionally, the different colours available in the anodizing process mean that one can pick a finish that matches their desired specifications.
Powder Coating
Powder coating involves applying a dry powder paint to the surface of aluminium bars. The powder is applied electrostatically and then cured under heat to form a smooth and durable finish. Powder coating is known to offer excellent protection against the weather, impacts, and other environmental factors that could cause wear and tear. The coating simultaneously adds a layer of insulation that shields electrical contacts from corrosion making it an excellent option for electrical applications.
Mirror Polishing
For a highly reflective surface finish on aluminium square bars, you may prefer this method. Mirror polishing involves grinding and smoothing the surface of bars such that they become highly reflective. This process creates a smooth surface that is easy to clean and is often used in the aviation, automotive, and electronic industries. It is a preferred option for applications where aesthetics are important.
Brushing
Brushing is a surface finishing option that involves using a wire brush to create a pattern on the surface of aluminium square bars. This process creates lines that vary in thickness making it an excellent option for a textured finish. You can use different brushes to create different patterns, and the finish can be highlighted with different colours and other effects.
Sandblasting
Sandblasting is a surface finishing process that involves shooting abrasive media at high speed to remove roughness and debris from the surface of aluminium bars. This process gives an even, matte finish and is ideal for items that experience heavy-duty use and exposure to environmental elements. It offers excellent corrosion resistance and is resistant to mechanical wear, making it a popular option in the construction and marine industry.
Conclusion:
The surface finish you choose for your aluminium square bars may depend on several factors – the application of the product, the environment in which the product will be used, and your desired aesthetics. However, by taking a closer look at the different surface finishing options available, you can make an informed decision that will produce a functional and beautiful end product. Remember, surface finishing is essential for the longevity of your product, and the right finish will also add an extra layer of protection, enhancing its durability and appearance. I hope this blog post helps you make an informed decision and choose the ideal surface finishing method for your aluminium square bars.