CHG International Limited
Your Trusted Partner in the Metal Surface Treatment Industry
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Integrated Automatic and Manual Spraying
This powder coating production line combines automatic spraying with supplementary manual coating, making it perfectly suited for aluminum profiles of various sizes and shapes. The integration ensures uniform coverage and precise finishing, even on intricate designs.
Spray Booth Specifications
The spray booth is fabricated from PP (polypropylene), a material renowned for its excellent chemical resistance and durability. The booth's design emphasizes both functionality and operator comfort, featuring efficient ventilation systems and safety measures. Design blueprints provide a detailed overview of the spray booth layout, including its ventilation setup and safety features.
Overhead Conveyor System
An overhead conveyor system is employed to facilitate smooth and efficient part movement through each stage of the coating process. This system optimizes space utilization while enhancing throughput. The engineering drawings illustrate the overhead conveyor pathway, showing how parts are systematically transported through cleaning, pre-treatment, drying, coating, and curing stages.
Manual Loading and Unloading Stations
Parts are manually loaded and unloaded at designated stations along the conveyor line. This approach provides flexibility in handling different profile types and sizes, ensuring precise positioning for optimal coating results. The design plans include specific areas designated for loading and unloading, equipped with ergonomic workstations to facilitate ease of operation.
By merging advanced automation with manual precision, this powder coating production line delivers high-quality finishes tailored to the unique requirements of aluminum profiles. Accompanying design drawings provide a clear visual guide to the system’s layout and workflow, ensuring transparent and straightforward setup and operation.
The Process of Powder Coating Line:
| 1. Surface Preparation: | The process begins with surface preparation, a critical step to ensure optimal adhesion of the coating. This involves cleaning, degreasing, and removing any contaminants from the aluminum surfaces, preparing them for subsequent treatments. |
| 2. Pre-Treatment: | After surface preparation, the aluminum profiles undergo a pre-treatment process to enhance coating adhesion and corrosion resistance. Common pre-treatment methods include chemical cleaning, phosphating, or chromate conversion coating. The pre-treatment prepares the aluminum surface for better powder adhesion and improves coating performance. |
| 3. Drying: | Once pre-treated, the aluminum profiles are conveyed through drying ovens to eliminate any residual moisture. Ensuring the aluminum is completely dry is essential for achieving proper powder coating adhesion and finish quality. |
| 4. Powder Coating Application: | With the profiles thoroughly dried, they are ready for powder coating application. The powder, electrostatically charged, is sprayed onto the grounded aluminum profiles using specialized powder coating guns. The charged particles are attracted to the profiles, ensuring an even and uniform coating. |
| 5. Powder Curing: | After application, the coated aluminum profiles move into curing ovens where thermal curing takes place. The heat causes the powder to melt and flow, forming a continuous, smooth film. Additionally, the curing process facilitates chemical cross-linking of the powder particles, resulting in a durable, hardened finish. |
| 6. Cooling: | Following the curing process, the coated aluminum profiles are allowed to cool down. This cooling phase stabilizes the coating and ensures it maintains its properties and appearance. |
| 7. Quality Inspection: | After cooling, the coated aluminum profiles undergo a thorough quality inspection. The inspection involves checking the coating thickness, appearance, adhesion, and overall quality to ensure it meets the specified standards. |
