Metal Anodizing and its Types

Metal anodizing comes in a variety of forms, but they all serve the same primary purpose: to generate a layer of aluminum oxide that protects the metal beneath.

Fremont, CA: Electroplating metal, quite often aluminum, to achieve a protective and aesthetic anodic oxide coating is known as metal anodizing. It's a tough metal finish that can withstand scratches, corrosion, and wear and tear, making it a familiar choice in various sectors. Anodizing is accomplished by immersing aluminum in an acid electrolyte bath. The electrolyte bath is given a negative charge, while the aluminum is given a positive charge. This fosters the formation of an invisible film on the aluminum's surface, giving it an anodized finish.

Here are few of the most commonly known types of anodizing:

Hard anodizing

Manufacturers can anodize metals to give them a durable anodized finish with this technique. This is frequently done with sulfuric acid to obtain a more robust finish, but in a much denser and thicker form. This means it's ideal for industrial applications that require a high level of wear and tear resistance. Hard anodizing is most typically used or manufactured in industries that employ or produce applications that are exposed to tougher environments. Hard anodized aluminum provides better electrical insulation due to its thickness and strong surface.

Color anodizing

Anodizing in a variety of colors is a brilliant way to provide applications with both durability and aesthetic appeal. To boost the aesthetic appeal of the anodizing process, we can incorporate colored dyes. This pigment absorbs into all of the metal's unfilled pores, sealing in color for good. Color anodized surfaces can't be scratched off at the surface level, making them exceptionally durable.

Sulphuric acid anodizing

Anodizing using sulphuric acid is one of the most popular and cost-effective methods of anodizing. This metal anodizing treatment is particularly popular for applications that demand a robust, durable surface that is abrasion-resistant. It also has a more evident finish than other types of anodizing, giving you more options when it comes to color dyeing. Military weapons and mechanical hardware are two of the most common uses for sulfuric acid anodized surfaces.