Stamping Parts Surface Treatment Complete Solution

　　This is a professional, export-oriented, B2B-friendly summary for catalogs, websites, and customer proposals.

　　Overview

　　Surface treatment is a critical process for stamped metal parts to improve corrosion resistance, appearance, conductivity, weldability, wear resistance, and assembly performance.

　　We provide a full range of eco-friendly surface finishing solutions for carbon steel, stainless steel, aluminum, copper, and alloy stamping parts.

　　Common Surface Treatment Processes

　　1. Electroplating

　　Zinc Plating (White / Blue / Color / Black)

　　Good corrosion resistance

　　Low cost, widely used for fasteners, brackets, shells

　　Nickel Plating

　　Bright appearance, wear-resistant, solderable

　　Used for electronic components, decorative parts

　　Copper Plating

　　Good conductivity, often used as undercoating

　　Chrome Plating

　　Bright, hard, corrosion-resistant

　　For decorative and functional parts

　　2. Electrophoresis & Painting

　　Cathodic Electrophoresis

　　Uniform film, strong adhesion, corrosion-resistant

　　Suitable for complex-shaped stamping parts

　　Powder Coating

　　Thick, durable, scratch-resistant, rich colors

　　Used for chassis, enclosures, covers

　　Liquid Painting

　　Flexible color options

　　For appearance parts and housings

　　3. Passivation & Phosphating

　　Passivation (Stainless Steel / Galvanized Steel)

　　Removes free iron, improves corrosion resistance

　　No significant color change

　　Phosphating (Zinc / Manganese Phosphating)

　　Improves paint adhesion and rust prevention

　　Base layer before painting or oiling

　　4. Anodizing (for aluminum alloy stampings)

　　Type: Natural, Black, Silver, Color anodizing

　　Features:

　　Hard, protective oxide film

　　Insulating, decorative, corrosion-resistant

　　Widely used for electronic heat sinks, covers, structural parts

　　5. Heat & Surface Strengthening

　　Quenching & Tempering

　　Improves hardness and strength

　　Carburizing / Nitriding

　　High surface hardness, wear-resistant

　　For gear-like stamping parts, structural components

　　6. Mechanical Surface Treatment

　　Sandblasting

　　Removes burrs, oxide skin, improves adhesion

　　Polishing / Brushing

　　Improves appearance, creates matte or mirror finish

　　Vibratory Deburring

　　Batch deburring for small stamping parts

　　7. Anti-Rust Oil & Preservation

　　Anti-rust oil / Lubricant coating

　　Temporary rust prevention during storage and shipping

　　Low-cost protection for carbon steel stampings

　　Selection Guide (By Material & Purpose)

　　Carbon steel stamping parts:

　　Zinc plating → Powder coating → Phosphating + Oil

　　Stainless steel stamping parts:

　　Passivation → Electropolishing → Brushing

　　Aluminum alloy stamping parts:

　　Anodizing → Sandblasting + Anodizing

　　Electronic / Conductive parts:

　　Nickel plating → Gold plating → Tin plating

　　Advantages of Our Surface Treatment Solution

　　High corrosion resistance (meets neutral salt spray test requirements)

　　Stable film thickness, uniform appearance

　　Eco-friendly processes (RoHS, REACH compliant)

　　Suitable for mass-produced stamping parts

　　Supports customized testing: salt spray, adhesion, hardness, thickness

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