Tag: Electrostatic spraying

 

What are spray painting and powder coating?

What are spray painting and powder coating

Spray painting, including electrostatic spraying, is a process of applying liquid paint to an object under pressure. Sprayg Painting can be done manually or automatically. There are several methods for atomizing paint spraying: Using a conventional air compressor – air under pressure through the mouth of a small outlet, draws the liquid paint from the container and creates a mist of air paint from the nozzle of the spray gun Airless spray – the paint container is pressurized, pushing theRead More …

Electrostatic Oiler 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 spray atomizationRead More …

Utilization of electrostatic spraying are effected by three factors

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 …

advantages of powder coating spraying in aluminum surface

advantages of powder coating

Aluminum surface treatment in general anodizing, electrophoretic coating and powder coating spraying three kinds of treatment, each of these methods have their own advantages, a considerable market share . Among them, the powder coating spraying ,there are the following significant advantages: 1.The process is relatively simple, mainly due to automatically improve the accuracy of the production process equipment, microcomputer control some of the major technical parameters can effectively reduce the difficulty of process operation, and auxiliary equipment is greatly reducedRead More …

Factors influencing powder spraying efficiency

Some Important Factors influencing powder spraying efficiency

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 andRead More …

Tribostatic Charging oR Corona Charging Make Powder particles Charged

Tribostatic Charging

Tribostatic Charging oR Corona Charging Make Powder particles Charged Today, practically all powder coating powder 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 particlesRead More …

Methods of Applying Powder – ELECTROSTATIC SPRAYING

Equipment for Powder Manufacture

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 Spray Corona charging the most common method

Electrostatic Spray Corona charging

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 …

Spray process and requirements for general and art powder coatings

Differences-Between-Tribo-and-Corona

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 …

Electrostatic Spraying Process in the valve industry

Electrostatic spraying process

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 …

Four Basic Pieces of Equipment for Electrostatic Spray Systems

Electrostatic Spray Systems

Most powder coating electrostatic spray 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 …

What is Friction Charging (Tribostatic Charging)

Friction Charging

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 Tribostatic Charging, there exists no high voltage which can subsequently generate freeRead More …

Conventional electrostatic charging(CORONA CHARGING)

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:  Read More …

Electrostatic spraying gun

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 …

Electrostatic Spray Tribo Charging the second most common method

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 …