Briefly introduce the application characteristics of electrophoretic coating

Briefly introduce the application characteristics of electrophoretic coating

The emergence of electrophoretic coating technology is a type of electrophoretic coating process that has emerged with the rapid development of China's machinery industry, and has put forward increasingly high requirements for the quality of vehicle products. The high safety, environmental friendliness, and diverse personalities of vehicles determine the increasingly high requirements for surface protection technology of fasteners. So, what are the application characteristics of electrophoretic coating?

Electrophoretic coating has the following characteristics:

(1) The painting process is easy to mechanize and automate, which not only reduces labor intensity but also greatly improves labor productivity. With the development of the automotive industry, black electrophoresis technology and equipment for automotive coatings, especially for car coatings, have been rapidly applied in China.

At present, the level of coating equipment installed in China has greatly improved. In the future, with the use of environmentally friendly coatings such as water-based coatings and powder coatings, the overall level of coating technology in China will reach the world's advanced level. According to data from a certain automobile manufacturer, the efficiency of car primer has increased by 450% after changing from immersion coating to electrophoretic coating.

(2) Electrophoretic coatings have complex shapes due to the electric field (J-N Y N), making them suitable for workpieces with complex shapes, edges, corners, and holes such as welded parts. The power can be adjusted to control the film thickness to a certain extent.

For example, in the gaps where wires are welded, a relatively uniform paint film can be obtained on the inner and outer surfaces of the box, and the resistance to corrosion and erosion is also significantly improved.

(3) Charged polymer particles undergo directional deposition under the action of an electric field, resulting in excellent water resistance and stronger adhesion of the electrophoretic coating film compared to other methods.

(4) The concentration and viscosity of the paint used for electrophoretic coating are low, and the immersion effect adheres to the coated workpiece, resulting in less loss of coating. Paint can be fully utilized. Especially after the application of ultrafiltration technology in electrophoresis, the paint yield is above 95%.

(5) Pure water is used as the solvent in electrophoretic paint (properties: transparent, colorless liquid), which saves a lot of organic solvents, eliminates solvent poisoning and flammability hazards, fundamentally eliminates paint mist, improves workers' working conditions and environmental pollution.

(6) Improve the smoothness of the paint film, reduce polishing time, and lower costs.

Due to its advantages, electrophoretic coating is widely used in various applications such as automobiles, tractors, household appliances, electronics, and electronic components.

In addition, the appearance of colored cathodic electrophoretic paint is suitable for coating various metals and alloys, such as copper, silver, gold, tin, zinc alloy (Zn), stainless steel, etc. Therefore, aluminum doors and windows, artificial jewelry, lighting and other aspects have been widely used. Some surface treatments of black electrophoresis are aimed at eliminating adhesion between the coating and the coated surface, and cleaning up elements that affect these two processes.