This is a type of coating equipment which enables in applying powder. Powder coating equipment doesn't require solvents in its processes. The coating is done electrostatically which is then passed under heat, allowing the powder to circulate and form a "skin". It might be a thermoset polymer or perhaps a thermoplastic. Generally, it can be used to provide a hard finish which can be harder compared to conventional point that was formerly used. The principle intent behind applying this devices are for coating metals, for example bicycle parts, household appliances, aluminium extrusions and much more.

Few advantages of powder coating are mentioned below:

- It Produces Much Thicker Coating When compared with Traditional Liquid Coating  

- It could be Recycled, Facilitating 100% Reusability In the Substance  

- Produces Less Hazardous Waste In comparison with Traditional Usage of Liquid  

Procedure for Powder Coating

The Powder Coating Equipment work in following basic processes:

Prior to powder coating process removal of lubrication grease, metal oxides, mud, oil etc are very important. There are various chemical as well as mechanical methods of removing these substances from the metal surface. The strategy depends upon the performance requirement of the end product. In spray application, chemical pre-treatments involve the use of chromates and phosphates. Phosphating and chromating in the substrate exist in multiple stage. Bonding from the powder towards the metal involves cleaning inside the pre-treatment process. Sand Blasting can be an another method of preparing the counter prior to coating. It is employed to provide finishing, etching, surface texturing and preparation and degreasing for products manufactured from wood, glass, or plastic. Different powder coating applications can require different ways of preparation such as abrasive blasting before coating. The online consumer market typically offers media blasting services as well as their coating services at additional costs.

Commonly electrostatic gun or corona gun is employed for utilizing the powder coating to metal objects. Here, lets discuss the functional of electrostatic gun. Negative electric charge is imparted to the powder. The negatively charged powder will be sprayed on the grounded object by mechanical or compressed air spraying equipment. It is then accelerated towards the workpiece from the powerful electrostatic charge. The item will be heated, and the powder melts right into a uniform film, and it is then cooled to create a hard coating. To achieve more uniform finish preheating might help but problems can even be created as runs caused by excess powder.

Tribo gun could be the second type of gun that is utilized to spray powder on metal surfaces. The powder is first charged by triboelectric friction which charged powder particles then stick to the grounded substrate. It will take some other formulation of powder when it comes to corona guns.

Fluidized bed method could also be used for Powder coating. To start with the substrate is heated then it can be dipped into aerated powder-filled bed. Later the powder sticks and melts on the hot object. Most dishwasher racks are coated with this method of [http://people.tribe.net/277d20cf-3a72-43bf-9a86-d19d34328dd5/blog/40a0ab48-bf2a-4644-9180-487bb409f801 powder coat guns].