It's a form of coating equipment that helps in applying powder. Powder coating equipment doesn't require solvents rolling around in its processes. The coating is done electrostatically and is also then passed under heat, allowing the powder to flow and form a "skin". It can be a thermoset polymer or perhaps a thermoplastic. Generally, it is utilized to provide a hard finish which can be harder compared to the conventional point that was formerly used. The key intent behind employing this devices are for coating metals, for example bicycle parts, household appliances, aluminium profiles and many more.

Few features of powder coating are mentioned below:

- Emission Of Volatile Organic Compounds Are Reduced By Coating The Metals  

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

- It is usually Recycled, Facilitating 100% Reusability Of The Substance  

- Produces Better Waste As compared with Traditional Usage of Liquid  

Process Of Powder Coating

The Powder Coating Equipment be employed in following basic processes:

- Part Preparation Or Pre-Treatment  

Prior to the powder coating process removing lubrication grease, metal oxides, mud, oil etc are necessary. There are many chemical as well as mechanical ways of removing these substances in the metal surface. The technique will depend on the performance dependence on the finished product. In spray application process, chemical pre-treatments involve the usage of chromates and phosphates. Phosphating and chromating of the substrate appear in multiple stage. Bonding from the powder towards the metal involves cleaning within the pre-treatment process. Sand Blasting can be an permanently of preparing the top prior to coating. It is employed to provide finishing, etching, surface texturing and preparation and degreasing for products made from wood, glass, or plastic. Different powder coating applications can require alternative methods of preparation like abrasive blasting just before coating. The online consumer market typically offers media blasting services coupled with their coating services at additional costs.

Commonly electrostatic gun or corona gun can be used for using the powder coating to metal objects. Here, lets discuss the significant of electrostatic gun. Negative electric charge is imparted to the powder. The negatively charged powder is then sprayed on the grounded object by mechanical or compressed air spraying equipment. This will make it accelerated towards the workpiece with the powerful electrostatic charge. The item is then heated, along with the powder melts in to a uniform film, which is then cooled to make a hard coating. To accomplish more uniform finish preheating may help but problems can be created as runs caused by excess powder.

Tribo gun is the second kind of gun which is often used 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 a different formulation of powder with respect to corona guns.

Fluidized bed method can also be used for Powder coating. Initially the substrate is heated and after that it really is dipped into aerated powder-filled bed. Later the powder sticks and melts for the hot object. Most dishwasher racks are coated with this method of [http://people.tribe.net/c98a6bab-1faf-4483-97a7-4b34392f5ae6/blog/5111df34-86ce-432f-9a64-95d0ca0087ef powder coating equipment].