Primarily used for aluminum, this electrochemical process creates a hard, porous layer of aluminum oxide on the surface. This layer significantly enhances corrosion resistance, wear resistance, and insulation properties. Its porous structure allows it to absorb dyes, enabling a wide range of decorative colors such as black, gold, red, and blue. The finish is then sealed to lock in both color and performance.
Using electrolytic principles, a thin layer of another metal (such as zinc, nickel, or chromium) is deposited onto the part surface. This primarily prevents corrosion of the base material while also improving surface hardness, wear resistance, and providing a reflective, aesthetically pleasing appearance.
A chemical treatment process used for metals such as stainless steel and aluminum. A chemical solution forms an ultra-thin protective oxide film on the metal surface, significantly enhancing the material’s inherent corrosion resistance, preventing rust, and removing surface free iron particles. Part dimensions and appearance remain nearly unchanged after treatment, making passivation the preferred anti-corrosion method for precision components where dimensional stability is critical.
High-speed abrasive particles are blasted onto the part surface to clean, remove burrs, and roughen the texture. It produces consistent finishes ranging from matte to uniformly textured surfaces, effectively conceals machining marks, and serves as a pre-treatment for processes such as painting or plating, significantly improving coating adhesion.
Mechanical or electrochemical smoothing of the surface to achieve a smooth, bright, or even mirror-like finish. This greatly enhances the product’s visual appeal and perceived quality. A polished surface also reduces dirt adhesion and minimizes stress concentration points.
A powder coating is a solid protective film formed on the surface of a workpiece through the powder coating process, involving electrostatic adsorption and high-temperature baking and curing. This coating offers excellent corrosion resistance, impact resistance, and abrasion resistance, and can achieve a relatively thick film layer in a single application. It is free from solvent emissions, meeting environmental requirements. The coating can exhibit a rich variety of colors, textures, and finishes, serving as a key surface layer that provides long-lasting protection and decorative appeal.
