1, cut (cut, fine cut)
2. Bend the pipe
3. Punch (punch or notch)
4. Drill
5. Welding
6. Polish
7. Pickling (pretreatment)
8, powder or plating (surface treatment)
(1) steel pipe dusting, electroplating, and painting processes are not similar
Dusting: dusting automatic line, after using the dusting gun,
and then in the high-temperature oven through, out is the finished product
Electroplating: immersion in the solution pool, chemical reaction
Spray Paint: do the same with wood furniture spray paint
(2) dusting process
The electrostatic spraying technology has obvious advantages compared with the old spraying technology, no thinner, no pollution to the human body, excellent coating appearance quality, strong adhesion, and mechanical strength; The curing time of spray coating is short, the corrosion and abrasion resistance of the coating is much higher, no primer is needed, the construction is simple, the technical requirements for workers are low, the cost is lower than the spray painting process, in the process of electrostatic spraying, there will not appear the common flowing phenomenon in the painting process.
The principle of electrostatic spraying technology: the electrostatic spraying equipment (electrostatic spraying machine) to the surface of the workpiece, the electrostatic effect, the powder will be evenly adsorbed on the surface of the workpiece, forming a dense protective layer that adheres to the surface of the workpiece and becomes the final coating with different effects (different kinds of powder coating effects); spraying effects in mechanical strength, adhesion, corrosion resistance, anti-aging and other aspects better than spray paint process, the cost is also under the same effect of spray paint.
The process flow of electrostatic spraying is pre-treatment (oil removal, rust removal, phosphorization pickling)-electrostatic spraying-high temperature curing-out-of-furnace cooling.
