Anti static measures may also be the question most people want to ask, especially in the process of installing cable tray, some small problems often occur. How to take measures to avoid the smooth completion of the work? Today, Jinan cable bridge manufacturer will teach you.
Intention: remove the oil stain, dust and rust on the surface of the workpiece, and form a corrosion resistant "phosphating layer" on the surface of the workpiece, which can increase the adhesion of the spraying layer.
Main process flow: degreasing, rust removal, phosphating and passivation. After pretreatment, the workpiece surface is free of oil, rust and dust. A uniform and rough gray phosphating film is formed on the original silver white shiny surface, which can prevent rust and increase the adhesion of the spraying layer.
2. Electrostatic spraying
Intention: Spray the powder coating evenly on the surface of the workpiece, especially on the cable tray (including the position where electrostatic shielding occurs only), and probably use a high-performance electrostatic spraying machine to complete the spraying.
Process: Apply electrostatic adsorption principle to evenly spray a layer of powder coating on the surface of the workpiece; The fallen powder is recovered by the recovery system and can be reused after sieving.
3. High temperature curing
Purpose: Heat the powder coating on the surface of the cable tray to the specified temperature and keep it warm for a corresponding time, so that it can be melted, leveled and solidified, and then obtain the required surface of the workpiece.
Process: push the sprayed workpiece into the curing furnace, heat the predetermined temperature (generally 185 ℃), and keep the temperature for a corresponding time (15 minutes); Open the furnace, take it out and cool it to get the product.
Prompt: heating and control system (including electric heating, fuel oil, gas, coal and other heating methods)+incubator=curing furnace.
4. Decoration and treatment
Purpose: To make the workpiece after electrostatic spraying reach a special appearance.
That's all for the anti-static treatment of cable tray. If you don't know anything about it, please come to our website http://www.sddlqj.cn Consult!