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Aluminum surface spraying methods

Source: hongda Browse:507 The release date:2023.04.07 [ Large medium small ]

There are three main surface treatment methods for industrial aluminum profiles: anodizing, electrophoretic coating, and liquid electrostatic spraying. Each method has its own characteristics, among which liquid electrostatic spraying has a more significant effect and better surface smoothness. What methods can we use when spraying the surface? Let's take a look below!

For aluminum profiles, surface spraying is required, and there are three main spraying methods:

1. Aluminum profile electrostatic rotatingbell fluorocarbon spraying: First, the workpiece is transported to the production line, followed by preliminary treatment, until the automatic electrostatic spraying primer is applied using an electrostatic rotating bell, followed by primer leveling. Then, the automatic electrostatic spraying topcoat is applied using an electrostatic rotatingbell, followed by a one-step topcoat leveling treatment. Then, the automatic electrostatic spraying topcoat is applied using an electrostatic rotating disc, followed by leveling the topcoat, and then drying Free cooling until the workpiece is removed from the production line.


2. Vertical electrostatic spraying of aluminum profile matrix: first place the workpiece on the production line for preliminary treatment, use the electrostatic rotary disc to carry out automatic electrostatic spraying of primer, then carry out primer leveling, use the electrostatic spray gun to carry out automatic electrostatic spraying of finish paint, then flow the flat paint, and then use the electrostatic spray gun to carry out automatic electrostatic spraying of finish paint, wait until the finish paint flows flat for drying, Free cooling, until the workpiece is removed from the production line.


3. Aluminum profile electrostatic spraying gun fluorocarbon spraying: First, place the workpiece on the production line, and then perform preliminary treatment to obtain automatic electrostatic spraying primer. Use an electrostatic spraying gun or rotating cup for spraying. Then wait for the leveling of the primer to the autonomous electrostatic spraying surface for painting, use the electrostatic spray gun to carry out the painting, and then resolutely carry out the leveling of the finish paint, then use the electrostatic spray gun to carry out the automatic electrostatic spraying of the finishing varnish, wait until the finishing varnish flows flat, becomes a solid state, Free cooling, until the workpiece is taken off the production line.


Air turbine bell electrostatic spray gun

The combination of electrostatic effect and high speed coating centrifugal force producesbetter and mre uniform coating particles. these high voltage charged prarticles are attracted to well grounded workpieces, resulting in excellent surface quality and high coating transfer efficiency

aomization centrifugal force ofturbine motor driving form air bearing turbine
Bell dimension Φ20mm, Φ30mm, Φ50mm, Φ65mm spray width 100-500mm
Max output voltage DC-20-80KV max output current 300ua
Max flow rate 500cc/min Max speed 70000rpm/min ( un-load
Max air consumption 1.0Nm3/min length 600mm reciprocation machine
Weigh 5.5kgs electrostatic controller HAD-201
Installation method Fixed, reciprocation machine ro coating robot

Roatry bell generally has three installation methods: fixed, reciprocation machine, robot, paintfrom the center to the high speed rotating bell head, bell head is charged and 80KV high voltage transmission to the paint, when the paint touches the bell head. is charged with high voltage negativ charge, because thsescharges reple each other, when the paint leaves the bell head, paint particles it's split by the charge into smaller and nore uniform particles until the surface thnsion of the coating is balanced with the charge repulsion