Anodizing Service For Die Castings

Anodizing Service for die castings is an electrochemical process that enhances metal surfaces by increasing corrosion resistance, surface hardness, and aesthetic appeal. It also improves adhesion for subsequent coatings, providing durable, long-lasting protection while offering a visually appealing finish.

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What Is Anodizing Service For Die Castings

Anodizing Service for die castings is an electrochemical process that enhances the surface of metal parts, increasing corrosion resistance, surface hardness, and aesthetic appeal. It also improves paint adhesion, providing durable protection and a visually appealing finish for die-cast components.

Steps	Description
Cleaning	The anodizing process begins with thorough cleaning of the die-cast part to remove any dirt, oil, and contaminants. This ensures that the surface is ready for the anodizing treatment and ensures maximum adhesion of the anodic layer.
Anodizing Process	The part is immersed in an electrolytic solution, typically sulfuric acid, and subjected to an electrical current. This process forms a protective oxide layer on the surface, enhancing durability, corrosion resistance, and wear properties.
Coloring (Optional)	After anodizing, the part can be colored by introducing dyes into the oxide layer. This coloring step provides aesthetic appeal, allowing for custom color finishes that are both durable and vibrant, without compromising the part's strength.
Sealing	The anodized part is sealed in hot water or a chemical solution to lock the anodized oxide layer. This sealing process increases the corrosion resistance and durability of the layer, making it more impervious to environmental factors.

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Properties of Anodizing

Anodizing enhances the properties of aluminum and titanium through an electrochemical process. It provides increased corrosion resistance, improved hardness, and better wear resistance. Anodized surfaces are also environmentally resistant and can be customized with various colors and textures. The process offers electrical insulation and is widely used in aerospace, automotive, and architectural applications due to its durability and aesthetic options.

Property	Description
Material Compatibility	Aluminum, titanium

Thickness	Typically 5 to 25 µm, can be thicker for special applications

Color Options	Clear, black, bronze, gold, custom colors

Texture Options	Smooth, matte, satin, rough (depending on process)

Surface Finish	Smooth, Ra 0.4 - 1.6 µm

Hardness	300 to 500 Vickers (depends on material and process)

Corrosion Resistance	Excellent, especially in high-humidity and saltwater environments

Environmental Resistance	High (resistant to UV, weathering, and harsh chemicals)

Electrical Insulation	Yes, anodized layers act as electrical insulators

Wear Resistance	Good to Excellent (increases with thickness)

Applications	Aerospace, automotive, architectural, military, electronics, decorative parts

Cost	Moderate (depends on material and thickness)

Time	Moderate to Slow (depends on part size and complexity)