Electrostatic spraying

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Four Basic Pieces of Equipment for Electrostatic Spray Systems

Most electrostatic powder spray coating systems are comprised of four basic pieces of equipment – the feed hopper, electrostatic powder spray gun, electrostatic power source, and powder recovery unit. A discussion of each piece, its interactions with other components, and the various styles available is necessary to understand the functional operation of this process. Powder is supplied to the spray gun from the powder feeder unit. Usually powder material stored in this unit is either fluidized or gravity-fed to aRead More …

Methods of Applying Powder – ELECTROSTATIC SPRAYING

Electrostatic Spray-Corona Powder Coating

Electrostatic spraying is the most widely used method of applying powder coating materials. Its growth is increasing at an impressive rate. Developed in the mid 60’s , this process is the most efficient means of applying coatings and finishes in a short time. However, acceptance of powder coating in general was initially very slow in the US. In Europe, the electrostatic powder spray concept was accepted more readily, and the technology moved much faster there than else-where in the world.Read More …

Electrostatic spraying process in the valve industry

In recent years, with the continuous development of science and technology, domestic valve market, but also to the high-tech, high-parameter, resistant to strong corrosion, the direction of the high life. This development direction also put forward higher requirements to the coating of the valve. Electrostatic spraying technology is the market for this material is ductile iron valves ordinary approach, this year is also the surface treatment of the valve has been widely promoted, but without careful analysis of a varietyRead More …

Applications of Liquid electrostatic spray-Electrostatic Oiler

Electrostatic Oiler is a successful example of the application of liquid electrostatic spray, it is a set of electromechanical and high-voltage electrostatic technology of high-tech products. It relies on the role of high-voltage electrostatic spray liquid anti-rust oil evenly on the surface of the metal plate (with) material can be widely used in the process of material production line of steel and non-ferrous metal plate (with), as well as other high quality oiled . Electrostatic Oiler work the droplet sprayRead More …

Development prospects and research directions of Electrostatic spraying technology

Electrostatic spraying technology has been 50 years of development history, and now, with its technology widely used in all walks of life have been developed by computer-controlled automatic spraying device can be complex operation, the robot carries with electrostatic spraying devices. And continuously explore electrostatic atomization technology with electrostatic spraying, electrostatic atomization technology, has studied the technology of the electrostatic inkjet technology, the electrostatic atomization of the liquid fuel, electric propulsion technology, spray charging dust removal technology, electrostatic pesticide sprayingRead More …

Some important factors influencing powder spraying efficiency

Spray Gun Positioning All powder coating processes necessitate the powder, suspended in its air flow, being as close as possible to the object. The force of electrostatic attraction between powder particles and the object decreases by the square of the distance between them (D2), and only when that distance is just a few centimeters will the powder be drawn towards the object. Careful positioning of the spray gun also assures that small and large particles are deposited on the objectRead More …

Friction Charging (Tribostatic Charging) for powder coating

Friction Charging (Tribostatic Charging) which generates an electrostatic charge on the powder as it rubs against an insulator Powder particles are friction charged as a result of the motion caused by each particle rubbing rapidly against a special type of insulating material which lines the barrel of the spray gun. Between the friction charging spray gun and the object, as the diagram illustrates, we have present primarily: With friction charging, there exists no high voltage which can subsequently generate freeRead More …

Conventional electrostatic charging(CORONA CHARGING) for powder coating

Conventional Electrostatic Charging (Corona Charging) by passing the powder through a high-voltage electrostatic field. High voltage (40-100 kV) concentrated at the nozzle of the spray gun causes ionizing of the air passing through the spray gun. Passage of the powder through this ionized air then allows free ions to adhere to a proportion of the powder particles whilst simultaneously applying a negative charge to them. Between the electrostatic spray gun and the object being coated, the following are present: ItRead More …

Powder particles are electrostatically charged using Corona or Tribostatic Charging

Today, practically all powder coatings are applied using an electrostatic spraying process. A common factor with all such processes is that the powder particles are electrically charged whilst the object requiring coating remains earthed. The resultant electrostatic attraction being adequate to allow the build-up of sufficient film of powder on the object, thus holding the dry powder in place until melting occurs with subsequent binding to the surface. Powder particles are electrostatically charged using one of the following techniques: ConventionalRead More …

Factors affecting the utilization of electrostatic spraying

The main parameters affecting the utilization of electrostatic spraying comprising: the type of nebulizer, the level of electrostatic spray parameters, the conductive,etc. Businesses use spray equipment decided to paint utilization factors, has a very different because of the different paint spraying equipment utilization. Nebulizer paint utilization of mainstream spraying equipment and childhood to greatly: Ordinary air gun, Electrostatic air spray gun Spinning cup Second, spraying environment for the utilization of paint, such as the presence or absence of and electrostaticRead More …