Corrosion Resistant/Dacromet-Plated Chain

Corrosion Resistant/Dacromet-Plated Chain (25DR, 35DR, 41DR, 50DR)

1. Core Definition & Product Overview

2. Dacromet Plating Process & Coating Characteristics

2.1 Core Plating Process

1. Pre-treatment: Degreasing, derusting, and phosphatizing the chain components to remove surface oil, rust, and oxides, ensuring coating adhesion.

2. Dipping/Spin-Coating: Immersing or spin-coating the cleaned components in Dacromet coating liquid to form a uniform thin film.

3. Curing: Baking at 300±10℃ for 20-30 minutes to cross-link the coating and form a stable, dense protective layer (thickness: 8-12 μm for standard grade, 15-20 μm for heavy-duty grade).

4. Post-inspection: Testing coating thickness, adhesion, and corrosion resistance to meet industry standards (e.g., ISO 10683).

2.2 Key Coating Advantages (vs. Traditional Anti-Corrosion Treatments)

3. Core Performance Parameters

4. Typical Application Scenarios

4.1 Industrial Conveying

• Seafood processing line conveyors (saltwater corrosion resistance)

• Chemical plant material conveyors (resistant to acid/alkali mist)

• Outdoor conveyor systems (rain, UV, and atmospheric corrosion resistance)

4.2 Agricultural Machinery

• Irrigation equipment transmission chains (humid soil/chemical fertilizer corrosion)

• Greenhouse automation systems (high humidity, pesticide corrosion)

• Livestock breeding equipment (ammonia gas, manure corrosion)

4.3 Automotive & Heavy Machinery

• Automotive chassis auxiliary transmission chains (road salt, water, mud corrosion)

• Construction machinery (outdoor construction, rain, and concrete slurry corrosion)

• Marine equipment (saltwater spray, high humidity marine environment)

4.4 Food & Pharmaceutical Industry

• Food processing lines (cleaning with alkaline/acidic detergents)

• Pharmaceutical production equipment (sterilization high temperature + chemical disinfection)

5. Installation & Maintenance Notes

1. Storage: Store in a dry, ventilated warehouse; avoid direct contact with acidic/alkaline substances or sharp objects (to prevent coating damage).

2. Installation: Do not use excessive force during assembly (e.g., hammering pins) to avoid scratching the coating; ensure sprocket matching (same pitch/spec as base chain).

3. Lubrication: Use anti-corrosion lubricants (e.g., lithium-based grease with rust inhibitors) to further enhance protection; re-lubricate every 500 hours of operation in harsh environments.

4. Inspection: Regularly check for coating damage (repair with Dacromet touch-up paint for small areas); replace the chain if coating peeling or red rust occurs over ≥10% of the surface.