Aluminum extrusion is widely used in modern industries. The aluminum profiles can be treated with various surface finishes, including plating and polishing. Plating and polishing are two common methods, but they have different applications. This article will explain the differences between plating and polishing for aluminum extrusions.
- Aluminum Profile Plating
Aluminum profile plating is the process of depositing a thin layer of metal on the surface of the substrate. There are various kinds of plating materials with different functions and appearances. Electroplating is the most common method to apply plating on aluminum extrusions. The process involves immersing the aluminum profile in a solution containing metal ions and then passing a current through the solution. The metal ions will be attracted to the aluminum surface, forming a thin layer. The thickness and color of the plating can be adjusted by controlling the plating time and solution composition.
Aluminum extrusions can be plated with a variety of metals, such as nickel, chrome, copper, gold, and silver. The plating can enhance the appearance of aluminum profiles, giving them a shiny or matte finish. Plating can also improve the corrosion resistance, durability, and wear resistance of aluminum extrusions. Plating is commonly used in exterior decoration, furniture, automotive, and electronics applications.
- Aluminum Profile Polishing
Aluminum profile polishing is the process of smoothing and shining the surface of the aluminum profile by removing the roughness and scratches. Polishing can be done manually or mechanically, using abrasive materials such as diamond, alumina, or silicon carbide. The polishing process can be divided into several steps, starting from coarse grit to fine grit, and finally ending with a buffing pad. Polishing can remove the rough edges, oxidation, and stains on the aluminum extrusions, making them look smoother and brighter.
Polishing aluminum extrusions can be done with different levels of gloss, ranging from matte to mirror finish. The gloss level depends on the grit size and type of abrasives used. Polishing can also increase the reflectivity, conductivity, and heat dissipation of the aluminum profiles. Polishing is commonly used in architectural, lighting, aerospace, and marine applications.
- Comparison
Aluminum profile plating and polishing are both surface treatments for aluminum extrusions, but they have different advantages and limitations. Plating can add a layer of metal on the surface, which can improve the appearance and performance of the aluminum profiles. However, plating can be expensive, time-consuming, and environmentally harmful if the plating solution contains toxic or hazardous materials. Moreover, plating is not suitable for complex or irregular shapes of aluminum extrusions.
Polishing, on the other hand, can remove the defects and impurities on the surface, making the aluminum profiles smoother and more reflective. Polishing is a simpler and cheaper process than plating, and it can be done on various shapes and sizes of aluminum extrusions. However, polishing may not provide the same level of durability and corrosion resistance as plating. Polishing can also be less effective for removing deep scratches or dents on the aluminum surface.
- Conclusion
In summary, aluminum profile plating and polishing are two different methods for surface finishing of aluminum extrusions. Plating can add a layer of metal to the surface, while polishing can remove the roughness and scratches on the surface. Both methods have their advantages and limitations, and their choice depends on the specific requirements of the application. Electrical conductivity, aesthetics, and corrosion resistance should be considered for plating applications, while reflectivity, cleanliness, and texture should be considered for polishing applications.
Established in 1993, Guangdong Zhonglian Aluminum is a large comprehensive aluminum profile enterprise located in Foshan, Guangdong, which covers an area of 100,000 square meters and has more than 1,000 staff. The company has several modern aluminum extrusion, anodic oxidation, electrophoresis coating, color powder spraying profile production lines, and additional casting environmental dust removal equipment after moving to the new plant. Furthermore, we have a complete set of CNC machining equipment: CNC aluminum profile deep processing range: Fine sawing, drilling, punching, milling, welding, and other profiles in the late deep addition. Also, we can provide a one-stop service according to your different needs. We look forward to cooperating with you to provide you with better products and services.
