Automatic Electrophoretic Coating Line For The Automotive Industry

Product Specification

Product Description
The electrophoretic coating process is extensively utilized in the automotive industry due to its numerous advantages, such as high paint utilization, low environmental pollution, automated production, enhanced safety, and excellent rust, impact, and corrosion resistance. This process is particularly beneficial for coating complex-shaped auto parts, including those with intricate edges, angles, holes, and cavities. It ensures uniform coverage even in hard-to-reach areas, such as the inner cavities and crevices of car frames, chassis, and other structural components. This results in a high-quality, consistent finish and significantly improves the anti-corrosion properties of the workpieces. To achieve these outcomes, advanced technology, extensive experience, efficient service, and a safe, stable production system are essential.

Application Fields of Electrophoretic Coating Production Lines
Electrophoretic coating production lines are widely employed in various industries, including:

• Automotive: Traditional and new energy vehicles
• Transportation: Motorcycles, rail transportation, and aerospace
• Industrial Machinery: Agricultural machinery, engineering machinery, and structural parts
• Consumer Goods: Household appliances, daily hardware, and 3C electronics
• Specialized Industries: Shipbuilding, military, wind power, and sheet metal parts

This technology is particularly valued for its ability to provide uniform and durable surface treatment across diverse applications.

Features of Jingtu Electrophoretic Coating Lines

With years of expertise, our company has developed electrophoretic coating lines with the following standout features:

1. Modular Design: The equipment is designed, produced, and installed in modular units, ensuring a visually appealing structure, reliable performance, and a significantly shortened construction cycle.
2. Advanced Filtration Technology: A combination of rotary liquid separators, magnetic filters, and paper belt filters effectively purifies the tank liquid, enhancing the overall cleaning efficiency.
3. Multi-Stage Oil Removal System: Our proprietary oil-water separator technology delivers exceptional oil removal performance.
4. Eco-Friendly Process: By integrating EDRO technology and a counter-current water replenishment process, our system achieves zero discharge, minimizing environmental impact.

Electrophoretic Coating Process
The workflow of electrophoretic coating equipment is as follows:

1. Pre-Cleaning: Removal of surface contaminants.
2. Loading: Placement of workpieces onto the production line.
3. Degreasing: Elimination of oils and greases.
4. Washing: Rinsing off residual degreasing agents.
5. Rust Removal: Elimination of surface rust.
6. Neutralization: Adjustment of surface pH levels.
7. Phosphating: Formation of a phosphate layer to enhance coating adhesion.
8. Passivation: Improvement of corrosion resistance.
9. Electrophoretic Coating: Application of a uniform coating through electrophoresis.
10. Tank Cleaning: Removal of excess paint from the workpiece surface.
11. Ultrafiltration Washing: Final rinse using ultrafiltration water.
12. Drying: Curing of the coating through drying.
13. Unloading: Removal of finished workpieces from the line.

Process Parameters

Composition of Electrophoretic Coating Equipment
The electrophoretic coating system comprises the following key components:

• Electrophoretic Tank: The main tank for coating application.
• Transfer Backup Tank: Auxiliary tank for paint storage and transfer.
• Tank Circulation Filtration System: Ensures consistent tank liquid quality.
• Ultrafiltration (UF) Device: Separates and recycles water and impurities.
• Electrode and Electrolyte Circulation System: Maintains the electric field and current.
• Paint Temperature Control System: Regulates paint temperature for optimal results.
• DC Power Supply System: Provides the necessary electrical power.
• Paint Replenishment Device: Automatically maintains paint concentration.
• Post-Electrophoretic Cleaning Device: Cleans residual paint from workpieces.
• Electrophoretic Coating Room (Dust Cover): Protects the coating area from contaminants.
• Electrical Control Cabinet: Manages the operation of the entire system.

These specialized components, along with additional equipment such as conveyors, drying ovens, and cooling chambers, form a complete electrophoretic coating production line.

Equipment Parameters

Paint Parameters

Environmental Parameters

Quality Control Parameters

Conclusion
Jingtu's electrophoretic coating lines combine cutting-edge technology, efficient design, and eco-friendly processes to deliver superior coating solutions for the automotive industry and beyond. With a focus on quality, reliability, and sustainability, our systems ensure exceptional performance and long-lasting results.