High-Precision Electrophoresis + Electrostatic Spraying Integrated Coating Production Line

The high-precision electrophoresis + electrostatic spraying integrated coating production line is an automated coating system that achieves seamless connection between electrophoresis priming and electrostatic spraying of topcoat, providing triple protection for workpiece surfaces: "high adhesion + high smoothness + high corrosion resistance." Its core advantage lies in balancing coating quality with production efficiency.

1. Core Process Flow (Fully Automated)

1. Pre-treatment Stage: Workpieces undergo degreasing, pickling, phosphating, and other processes to thoroughly remove oil stains and rust, laying the foundation for subsequent coating adhesion. This is a critical prerequisite for ensuring coating quality.

2.High-Precision Electrophoresis Stage: Workpieces are immersed in the electrophoresis tank, where paint particles uniformly deposit on the surface under an electric field to form a primer layer (thickness controllable, precision up to ±5μm). This stage ensures a coating without dead angles, strong adhesion, and resistance to basic corrosion.

3. Curing and Cooling: After electrophoresis, workpieces enter a high-temperature curing oven (typically 160-200°C) to cross-link and cure the primer. They are then cooled through a cooling channel to prevent thermal deformation of the coating during subsequent spraying.

4. Electrostatic Spraying Stage: Using robotic arms or automatic spray guns, topcoat particles are charged via high-voltage static electricity and precisely adsorbed onto the workpiece surface (paint utilization rate exceeds 95%, far higher than traditional spraying). This enables various color and gloss effects for the topcoat.

5. Secondary Curing and Inspection: After spraying, workpieces enter the curing oven again to fully cure the topcoat. They then undergo appearance inspection (e.g., film thickness gauge, adhesion testing) and defect screening to ensure product qualification rates.

2. Core Advantages

? Excellent Coating Performance: The combination of electrophoresis primer + electrostatic topcoat enables workpieces to withstand salt spray testing for over 5,000 hours (far exceeding single coating processes), with no defects such as sagging or orange peel on the surface.

? High Efficiency and Energy Savings: Fully automated integration reduces manual intervention, shortening production cycles by 30%. The high paint utilization rate of electrostatic spraying reduces raw material waste and minimizes VOC emissions (complies with environmental standards).

? Wide Applicability: Suitable for various materials (e.g., steel, aluminum alloy) such as automotive parts, hardware components, and home appliance casings, and adaptable to the coating needs of complex, irregularly shaped workpieces.

3. Key Equipment

? Core equipment includes: Fully automated pre-treatment tanks, high-precision electrophoresis tanks (with temperature control and stirring systems), hot air circulation curing ovens, robotic arm electrostatic spraying systems, and online film thickness inspection equipment.

I can help you organize a list of equipment configurations or a cost estimation framework for this production line.

If needed, you can directly contact me (Yang Hongxia at 135 0543 2698).