MetalPlastic CoatingIt's a new type of metal surface corrosion prevention and treatment technology.Plastic CoatingTechnology represents a new development in corrosion prevention techniques and a novel application of high polymer materials.

Typically, metalPlastic CoatingEquipment primarily consists of track, preheating box, curing box, hydraulic lifting, and hopper (for liquids).Plastic CoatingEquipment), fluidized bed (used for powders)Plastic CoatingEquipment), timing conveyor systems, and electrical control systems (commonly used in automatic lines).

MetalPlastic CoatingProcess Flow: Pre-treatment → Mounting Workpiece → Pre-drying (preheating to 320°C ~ 370°C, 15 minutes) → Immersion (vibration, removing excess powder) → Curing (180°C ~ 200°C, 10 minutes) → Dismounting Workpiece.

Metal parts are being processed.Coating with plastic immersionPrior to the process, the metal parts require necessary phosphatizing and rust removal treatment, followed by a special adhesive primer to ensure a tight bond between the metal surface and the resin film, thereby enhancingPlastic CoatingProduct quality.

Plastic CoatingThe process is a heating process, including metal preheating, immersion, curing, and other stages. During the immersion, the heated metal adheres to the surrounding immersion plastic resin material. The hotter the metal (the higher the temperature), the longer the immersion time, and the thicker the adhesive layer will be. The heating temperature of the metal parts and the immersion shape are determining factors for the adhesion.Plastic CoatingThe key to the resin content.

MetalPlastic CoatingIn the process, powderPlastic CoatingOriginating from the fluidized bed process, sometimes still referred to as "fluidized bed coating method." PowderPlastic CoatingThe process involves adding the powdered plastic resin to the bottom of a porous, breathable container, where it is then tumbled by compressed air treated and supplied from below through a blower, achieving a "fluidized state" and becoming uniformly dispersed fine powder.

Fluidized bed is the stage of solid fluidization (Stage 1 is the fixed bed stage, Stage 2 is the gas conveyance stage). Based on the fixed bed, the flow rate is further increased, causing the bed layer to vibrate, forcing the powder particles to float and move to a certain extent away from their original position. The suspension rate of the powder in the fluidized bed can reach up to 30% - 50%. Workpieces are degreased and preheated to the powder level.Plastic CoatingAbove the melting point of the resin, after immersion into the fluidized bedPlastic CoatingResin powder will uniformly adhere and then be plasticized into steel-plastic composite products.

Plastic CoatingResin refers to various types of plastic powders.Plastic CoatingPowder: First, civil powder, primarily used for coating items such as hangers, bicycle baskets, kitchen utensils, etc., offering a good shine; second, engineering powder, employed for highway and railway guardrails, municipal engineering fences, instruments and meters, supermarket shelves, refrigerator shelves, cables, and other miscellaneous products, known for its durability and strong resistance to corrosion.Plastic CoatingResins have the characteristic of softening when heated and hardening into a film upon cooling, which is primarily a physical melting and plasticizing film-forming process.

Plastic CoatingThe majority of the plastic-coated resins used in the process are thermoplastic.Plastic CoatingPowders, with typical raw materials such as polyethylene, polyvinyl chloride, and polytetrafluoroethylene, are suitable for non-toxic applications.Plastic CoatingCoating, such as general decorative, corrosion-resistant, and wear-resistant coatings. ThermoplasticPlastic CoatingPowder types primarily include PE General Purpose Coating Powder, PE Engineering Coating Powder, PE Pipeline Coating Powder, PE Refrigerator Coating Powder, and PE Hanger Coating Powder.Plastic CoatingPowdered goods.