pvc coated process of chain link fence

pvc coated wire is a plastic (structure: synthetic resin, plasticizer, stabilizer, pigment) coating process. The wall guardrail is made of high-quality hot-dip galvanized sheet to prevent the steel substrate from rusting from the inside to the outside. And after degreasing, cleaning, surface conditioning, phosphating, spray washing, drying, powder spraying, curing and other processes.

Anti-ultraviolet agents and antioxidants are added to the plastic powder to ensure that the guardrail has distinctive weather resistance, corrosion resistance, moisture resistance and long-term surface self-cleaning ability. The color is durable and bright, meeting the requirements of ten-year maintenance. According to the different raw materials used, it can be divided into liquid dipping and powder dipping.

Plastic spraying is a surface treatment method for spraying plastic powder on parts. Plastic spraying is what we often talk about as static electricity (a kind of charge in a static state). The principle of powder spray coating spray plastics process is to use the phenomenon of corona discharge to make the powder coating adsorb on the workpiece. The process is as follows: the powder coating is fed into the spray gun by the powder supply system by compressed air gas, and the high voltage generated by the high-voltage electrostatic generator is added to the front of the spray gun. Due to corona discharge, dense electric charges are generated near it, and the powder is discharged from the nozzle of the gun. When sprayed, charged paint particles are formed, which are attracted to the workpiece with the opposite polarity under the action of electrostatic force. As the sprayed powder increases, the more electric charge accumulates. When it reaches a certain thickness, static electricity is generated. Repulsion does not continue to absorb, so that the entire workpiece obtains a certain thickness of powder coating, and then the powder is melted, leveled, and solidified by heating, that is, a hard coating film is formed on the surface of the workpiece.