What is electrostatic spraying, electrostatic spraying process
Compared with the traditional spray painting process, the electrostatic spraying process (electrostatic spraying) has significant advantages. It does not need thinner materials, and the construction is non-polluting to the environment and non-toxic to the human body; the coating has excellent appearance quality, strong adhesion and mechanical strength; spraying The construction curing time is short; the coating has much higher corrosion resistance and abrasion resistance; no primer is required; the construction is simple, and the technical requirements for workers are low; the cost is lower than the spray painting process; some construction occasions have clearly stated that the electrostatic spray process must be used; During the electrostatic spraying process, the flow phenomenon that is common in the spray painting process will not occur.
The process principle of electrostatic spraying is to charge the plastic powder through a high-voltage electrostatic equipment, and uniformly adsorb on the surface of the workpiece under the action of an electric field, and then after high-temperature baking, the plastic particles will melt into a dense protective layer Firmly attached to the surface of the workpiece.
The technological process of electrostatic spraying is pre-treatment (degreasing, rust removal, phosphating); electrostatic spraying; high temperature curing (refer to the required temperature of plastic powder, generally 160-210 degrees); cooling out of the furnace.