Production process of fluorocarbon aluminum plastic panels

  Fluorocarbon aluminum-plastic panels are a new type of decorative material for buildings that has developed in recent years. They are lightweight, high-strength, aesthetically pleasing, waterproof, fireproof, weather-resistant, and easy to process, and have been widely used in various fields such as building decoration, vehicles, ship hulls, and signage. The production of fluorocarbon aluminum-plastic panels mainly includes three main production lines: chemical conversion, coating, and composite. After trimming and packaging, a complete production system is formed. Let's take a look at the production process of fluorocarbon aluminum-plastic panels!

  Fluorocarbon aluminum-plastic panel chemical conversion line

  The continuous fluorocarbon aluminum-plastic panel chemical conversion treatment mainly includes three parts: degreasing, neutralization, and chemical conversion coating. The purpose of degreasing is to remove the laminated rolling lubricating oil, anti-oxidation grease, and various dirt that adhere to the surface during the hot rolling process of the aluminum plate. The purpose of neutralization is to generate gray or black attachments on the surface after degreasing and corrosion of the aluminum plate. This is due to the sedimentation of impurities and alloy components such as silicon, magnesium, iron, and copper in the aluminum material, which need to be removed with oxidizing acids. The chemical conversion treatment creates a dense and stable oxide coating layer on the surface of the aluminum layer through chromate agents, which has good adsorption capacity and enhances the adhesion of the coating during application.

  Fluorocarbon aluminum-plastic panel process flow:

  1. Fluorocarbon aluminum-plastic panel feeding: Aluminum rollers are fed into a tension-controlled automatic conveyor, using a magnetic powder brake to control the feeding of aluminum rollers, ensuring that the aluminum rollers are under tension during production.

  2. Aluminum roller ears: Use adhesive tape to smooth and secure the feeding aluminum roller and the ear aluminum plate, ensuring continuity in production.

  3. Shower degreasing: Use mildly alkaline degreasing agent R336 at a temperature of 50°C, and use a degreasing shower pump to pressurize the degreasing liquid from the pump pipe through the nozzle to 1.5~2 kg/cm², then spray it onto the aluminum sheet.

  4. Brush degreasing: Use a brush roller to clean the upper and lower surfaces of the aluminum sheet, applying pressure to the neutral degreasing liquid and spraying it onto the aluminum sheet.

  5. Immersion degreasing: Use neutral degreasing liquid R336 at a temperature of 50°C, immersing the aluminum sheet in the degreasing liquid to achieve complete degreasing.

  6. Shower rinsing: Use well water for upper and lower shower rinsing to clean off residual degreasing liquid. A dehydration knife is installed at the inlet to prevent the degreasing liquid from entering the rinsing tank.

  7. Shower neutralization: Use oxidizing acid agent D150-40 at a temperature of 15~30°C for neutralization with upper and lower showers. A dehydration knife is installed at the outlet to prevent the neutralization liquid from entering the rinsing tank.

  8. Shower rinsing: Use well water for upper and lower shower rinsing to clean off residual neutralization liquid. A dehydration knife is installed at the outlet to prevent water from entering the water tank.

  9. Chemical conversion treatment: Use chromate method A1500 to treat the aluminum plate surface, forming an oxide film, with the temperature controlled at 45~20°C.

  10. Shower rinsing: Use industrial pure water at room temperature 5~30°C for upper and lower shower rinsing to completely clean the aluminum sheet. A high-efficiency air knife is installed at the outlet to prevent water from entering the drying box.

  11. Drying: Use a hot air unit to blow hot air at 75~100°C to dry the water contamination on the surface of the aluminum sheet. 12. Cooling: Install a cooling fan at the top and bottom to cool the aluminum roller, facilitating winding.

  13. Reversing: Use a rubber roller group with the aluminum coil outlet facing down to increase tension.

  14. Driving: Use a 5HP DC motor to drive the aluminum sheet forward, providing power for the entire production line.

  15. Winding materials: Wind the aluminum coil on a motor-controlled winder, using an edge tracking device to flatten the winding end face, ensuring there is no height difference.

  The above is the production process of fluorocarbon aluminum-plastic panels. If you would like to know more, feel free to contact us!