Extinguisher Powder Coating line
Powder coating line consist of powder coating spray booth,powder coating
machine,automatic powder guns,tunnel curing oven,conveyor system
1. Pretreatment
Objective: To get rid of the work-piece surface oil, dirt, rust and in the work-piece surface generating a layer of corrosion resistance and can increase the spraying coating adhesion "phosphating layer".
Main technological steps: In addition to oil, rust removal, phosphating and passivation. The workpiece surface after treatment before not only no oil, rust, dust and the original silver luster surface generating a layer of uniform and the rough is not easy to rust grey phosphating film and can increase the coating layer adhesion.
2. Electrostatic spraying
Objective: Powder coating evenly spray to the surface of the workpiece. The special work (including easy to produce electrostatic shielding position) should be using the high performance electrostatic spray molding machine to complete the painting.
Process steps:
Using electrostatic adsorption principle in the surface of the workpiece evenly spray on a layer of powder coating. Falling powder through the recovery system recovery and sieve used again.
3. High temperature curing
Objective: The workpiece surface of powder coating heating to the specified temperature and heat preservation corresponding time, melting, flow flat, curing.
Process steps: Spraying good workpiece push curing oven, heating to the predetermined temperature (usually 185 degrees) and heat preservation corresponding time (15 minutes). Blow on take out cooling namely get finished.
4. Decoration processing
Objective: Make after electrostatic spraying after the workpiece to achieve a kind of special appearance (all kinds of wood grain, decorative pattern, such as honor).
Process steps: Finish, transfer and treatment process.
This is a customer powder coating line pictures in the following:
.jpg)
