Ads
related to: electrostatic powder coating system
Search results
Results from the WOW.Com Content Network
Electrostatic coating is a manufacturing process that employs charged particles to more efficiently paint a workpiece. Paint, in the form of either powdered particles or atomized liquid, is initially projected towards a conductive workpiece using normal spraying methods, and is then accelerated toward the work piece by a powerful electrostatic charge.
The most common way of applying the powder coating to metal objects is to spray the powder using an electrostatic gun, or corona gun. The gun imparts a negative charge to the powder, which is then sprayed towards the grounded object by mechanical or compressed air spraying and then accelerated toward the workpiece by the powerful electrostatic ...
Powder coating on glass requires specialized equipment. The biggest challenge is getting the powder to adhere to the glass surface since there is no natural electrostatic attraction like there is with different metals. A clean glass subsurface that will not interfere with the process is essential before beginning the powder coating procedure. [3]
The electrostatic system is visible only on an external (or indirect) charge applicator, where it appears as a series of 4-8 forward-facing electrodes in a circular array around the bell. It is typically called a 'candelabra' for its resemblance to one. The bell is also used in powder coating. Although the bell looks different from a topcoat bell.
In electrostatic spray painting or powder coating, the atomized particles are made to be electrically charged, thereby repelling each other and spreading themselves evenly as they exit the spray nozzle. The object being painted is charged oppositely or grounded.
Gema Switzerland, based in Gossau SG, is an international supplier of electrostatic powder coating equipment. The products range from manual coating to fully automated powder coating. [1] Since 2012, Gema has been a part of the Graco Group, a worldwide supplier of liquid conveyance systems and components. [2]
The molten powder ‘flows’ into the profile and bonds with the steel. The molten powder will become a solid coating, when the ‘gel time’ is over, which usually occurs within few seconds after coating application. The resin part of coating will undergo cross-linking, which is known as “curing” under the hot condition.
ECTFE powder is most commonly used in electrostatic powder coating. [11] Such coatings have a typical thickness of 0.8 mm but can be applied up to 2 mm with a special grade for high build up. [12] [full citation needed] [13] [failed verification]
Ads
related to: electrostatic powder coating system