Electrostatic spraying

Compared to the electrostatic spraying and painting, painting or mechanical spray, can greatly improve the working environment of workers, so that the mist is no longer flying into the air to ensure workers’ health. But for various reasons such as national standards and norms operating in the electrostatic powder coating operation fails due to operator, leading to the frequent occurrence of fire, explosion and serious accident in the electrostatic spraying operations. Therefore, electrostatic powder coating accident prevention must draw theRead More …

(1) primary requirements should be thoroughly clean the steel surface rust (1-2) times, the best brush on the anti-rust paint, spraying agent to remove surface dust. (2) fire-resistant coating two-component packaging and single-component packaging two. Two-component packaging requirements, the dry ingredients and liquid coatings in the use of additional water within 10 minutes Stir within 20 minutes after spraying to prevent improve curing. Single component packaging, a little stir, can not readily be diluted with water before use. (3) theRead More …

The so-called Powder coating is the use of the principle of the electric field of high voltage electrostatic corona. Connected to the high-voltage anode metal deflector standard on the gun head, spraying the workpiece ground formation of the positive, so that the formation of a strong static electric field between the gun and the workpiece. When the compressed air as a carrier gas, the barrel of powder coatings for the powder sent the pollen tube to spray gun deflector rod,Read More …

The term electrostatics or electrostatic spray finishing refers to a spray finishing process in which electrical charges and electric fields are used to attract particles of atomized coating material to the target (the object to be coated). In the most common types of electrostatic systems, electrical charges are applied to the coating material and the target is grounded, creating an electric field. The charged particles of coating material are drawn by the electric field to the surface of the groundedRead More …

Critical Variables Corona Tribo Faraday Cage More difficult to coat recesses Easier to apply to recesses Back Ionization Easier to coat thinner films Easier to produce thicker films Products configuration Not good for complex shapes Very good for complex shapes Production requirements Wide range of line speeds Good for lower line speeds Powder Chemistry Less dependent on chemistry More dependent on chemistry

Electrostatic Spray Tribo Charging is the second most common method of spraying a powder coating. This method relies on the powder to develop a charge while passing through special hoses and guns. As powder contacts these non-conductive surfaces,electrons are stripped off of the particles due to friction. These particles then develop a powerful positive charge. No high voltage or lines of force are used which allows for easier penetration into deep recesses. Tribo charging is efficient in developing a staticRead More …

Electrostatic Spray (Corona charging) is the most common method used in powder coating .The process disperses finely ground powder into corona field at the gun tip applying a strong negative charge to each particle. These particles have a strong attraction to the grounded part and deposit there. This process can apply coatings between 20um-245um in thickness. Corona charging can be used for decorative as well as functional coatings. Virtually all resins with the exception of nylon can be applied easilyRead More …