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A complete set of non-toxic and non-polluting powder electrostatic spraying equipment

Views: 10     Author: Site Editor     Publish Time: 2021-04-19      Origin: Site

Powder electrostatic spraying equipment can greatly improve the mechanical strength and anti-corrosion performance of the coating, eliminate environmental pollution, save resources and energy, shorten the production cycle, and reduce production costs. The service life of powder-coated workpieces can reach more than 30 years under normal conditions.

The powder coating is evenly attached to the surface of the workpiece after electrostatic spraying. After being baked at a high temperature, a coating with a thickness of usually more than 60 microns will be formed, and the surface of the coating is smooth and bright in color. Has better corrosion resistance and wear resistance. Even in multiple severe outdoor weather, the coating will not fade, crack or change color within 10 years.

Sheet metal parts, hardware powder electrostatic spraying equipment: suitable for surface treatment of metal workpieces, electric control cabinets, electrical appliances, mechanical equipment

Sheet metal parts such as spare parts, car parts, agricultural machinery, and hardware parts, powder electrostatic spraying equipment, simple construction, low cost, no primer, thinner, no pollution to the environment during construction, and no toxicity to the human body: the appearance of the workpiece coating Excellent quality, good adhesion, high mechanical strength, high corrosion resistance and high wear resistance.

In recent years, powder electrostatic spraying equipment has gradually replaced the soluble paint technology. The so-called powder electrostatic spraying is the use of the principle of high-voltage electrostatic corona electric field. A high-voltage negative electrode is connected to the metal diversion mark of the spray gun head, and the sprayed workpiece is grounded to form a positive electrode. , A strong electrostatic electric field is formed between the spray gun and the workpiece. Under the action of the electrostatic field formed by the high voltage, the powder coating is coated on the workpiece, and then after a certain period of time, the temperature is baked to form a coating process. It can effectively remove oil, dust, and rust on the surface of the workpiece, and generate a layer of corrosion-resistant and can increase the adhesion of the spray coating "phosphate layer" or "chromium layer" on the surface of the workpiece.

Main process steps: degreasing, derusting, phosphating (chromizing), passivation. After the pre-treatment of the workpiece, not only the surface is free of oil, rust,

Dust, and a uniform and rough gray phosphating film (chrome-plated) that is not easy to rust is formed on the original silver-white shiny surface

Film), which can prevent rust and increase the adhesion of the spray coating.

Common pre-treatments are immersed, sprayed, and waterfall. The immersed type requires multiple immersion tanks; the spray needs to be in the spray stream.

A spray line is set on the water line; the waterfall type is that the solution flows directly down the workpiece from a high place.

The purpose of electrostatic spraying of powder electrostatic spraying equipment: spray powder coating evenly on the surface of the workpiece. Special workpieces (including positions that are prone to electrostatic shielding) should be sprayed with a high-performance electrostatic spraying machine.

Process steps: Using the principle of electrostatic adsorption, a layer of powder coating is evenly sprayed on the surface of the workpiece; the fallen powder is recovered through the recycling system.

Powder electrostatic spraying equipment curing purpose: to solidify the sprayed powder on the surface of the workpiece.

Process steps: Put the sprayed workpiece in a high temperature furnace at about 200°C for 20 minutes (the curing temperature and time depend on the quality of the selected powder, and the curing temperature of the special low temperature powder is about 160°C, which saves energy). Melting, leveling, and solidification make the product more corrosion-resistant, rust-proof, and color-proof, and can be used for a long time.


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