Steel poles spraying plastic powder (i.e., plastic powder) is uniformly sprayed on metal surfaces such as street light poles in an electrostatic manner. During the spraying process, the plastic powder particles are given electrostatic charges and are attracted to the grounded metal surface under the action of an electric field. Then, by baking at high temperatures, the plastic powder particles melt and cure on the metal surface, forming a hard, smooth and durable coating.
What's The Specific Steps For Spraying / Powered Coating For The Steel Pole?
Pre-treatment: First, the lamp posts are cleaned, oiled, and rust-removed to prepare them for the process. This ensures that the surface is clean and free of impurities. This step is crucial for a successful spraying process, as any impurities can affect the adhesion and durability of the coating.
Electrostatic spraying: Plastic powder (plastic powder) is placed in the spray gun, and an electrostatic high-voltage generator is used to create an electric field between the spray gun and the metal surface. The plastic powder particles are fully charged by the electric field and evenly adhered to the metal surface. This step utilizes the electrostatic powder spraying technology to ensure a uniform coating without dripping, peeling, or other problems.
High-Temperature Curing: The lamp pole after spray painting is sent into a high-temperature oven for baking. The plastic powder particles melt and flow smoothly under the action of high temperature, forming a dense coating. Then, the coating quickly cools and solidifies, bonding tightly to the metal surface.
Baking and Cooling: After the coating has cured, the lamp pole needs to be baked and cooled to ensure that the coating is fully cured and achieves optimal physical and chemical properties.
