Sheet Metal Fabrication Surface Finishing Services

Gold Plating

Gold plating is a surface treatment process that coats a metal surface with a thin layer of gold. It involves using electrolysis or other chemical methods to uniformly deposit gold ions onto the product surface. A stable, bright, and corrosion-resistant metallic protective layer is formed on the workpiece surface. This surface treatment method enhances the product’s appearance and texture, and also improves conductivity and wear resistance.

Silver Plating

Silver plating is less expensive than gold plating. However, compared to gold coatings, silver coatings have superior electrical conductivity and light reflectivity. Additionally, silver coatings demonstrate greater chemical stability than gold coatings. Electroplating can improve a product’s corrosion resistance, conductivity, and reflectivity. Therefore, it is commonly used in electrical appliances, instrumentation, and lighting manufacturing.

Galvanizing

Galvanizing can make the product more beautiful and prevent it from rusting. This treatment method effectively reduces the risk of steel corrosion, with protective efficacy typically determined by coating thickness. If you want to further enhance the protective and decorative properties of the galvanized layer, you can also passivate and dye it.

Hot-Dip Galvanizing

Hot-dip galvanizing is the process of immersing steel parts entirely in molten zinc. This process forms a strong protective zinc layer on the surface. Steel treated in this way is more corrosion-resistant, resistant to wind and rain, and will not easily rust even after many years of outdoor exposure. Therefore, if your parts need to remain durable for a long time, such as structural components, pipes, railings, and hardware, you can choose hot-dip galvanizing.

Chromium Plating

Chromium plating possesses high hardness, excellent heat resistance, and high gloss. This metallic material has an extremely low coefficient of friction. Especially under dry friction conditions, its coefficient of friction ranks among the highest of all metals. Therefore, chromium plating exhibits excellent wear resistance.

Nickel Plating

Nickel electroplating coatings exhibit stable performance in air. They also provide protection against corrosion from atmospheric elements, alkalis, and certain acids. Their extremely fine crystals offer excellent polishing properties. The polished nickel coating can keep the product’s luster for a long time and make it more beautiful.

Anodizing

Anodizing is a process where aluminum or aluminum alloy products (anodes) are placed in an electrolyte, and an electric current is applied to form an oxide film on their surfaces. This finish is commonly used on bicycles, automotive parts, and kitchenware parts.

Surface treatment technology is crucial for aluminum alloys because it can increase their surface hardness and improve wear resistance. Surface-treated aluminum alloys also have a longer service life and a wider range of applications.

Black Oxide Coating

Black oxide coating creates an oxide film on the surface of a part. This coating protects against air and rust. It is a very common chemical surface treatment. The blackening of steel parts’ surfaces is sometimes called bluing.

Powder Spraying

This is a spraying technique that uses compressed air to disperse powder into a mist of particles under the action of high-voltage electrostatics. These particles are then adsorbed onto the surface through an electric field.

Spray Painting

Metal surface coatings can prevent metal parts from oxidation and corrosion. Metal surface spraying is an important means of metal corrosion prevention. A good coating layer is continuous, complete, and well-bonded, forming a barrier that inhibits the intrusion of corrosive media.

Electrophoretic Coating

Electrophoretic coating is a coating process that uses an electric field to allow paint to adhere evenly to a metal surface. Simply put, it involves placing a metal part in a paint bath, and a thin film with special properties forms on the object’s surface. Its advantages include a fine coating, good adhesion, and strong corrosion resistance. If your product is an automotive part, appliance casing, hardware component, or other product requiring reliable protection, you can choose this surface treatment.

Dip Molding

PVC plastic products are made by impregnating a metal core with PVC emulsion paste. After plasticization and cooling, the resulting coated product is called a PVC plastic product. Due to its aesthetically pleasing appearance and pleasant feel, it is often used to coat cast products such as pliers and dumbbells.

What Industries are Metal Surface Treatments Used for?

Metal products across various industries require surface treatment, such as automotive, construction, container manufacturing, electronics, medical devices, industrial machinery, laboratory equipment, and aerospace. These treatments improve corrosion resistance, durability, appearance, conductivity, and overall lifespan.

If you require specific surface treatments for your products, such as anodizing, powder coating, electroplating, polishing, or electrophoretic coating, please feel free to contact us and send us your drawings or documents.