Просмотр

What's Powder Coating Equipment?

This is a sort of coating equipment that assists in applying powder. Powder coating equipment does not require solvents in the processes. The coating is carried out electrostatically and is then passed under heat, allowing the powder circulate and form a "skin". It might be a thermoset polymer or possibly a thermoplastic. Generally, it really is used to provide a hard finish which is harder as opposed to conventional point which was formerly used. The primary function of applying this equipment is for coating metals, like bicycle parts, household appliances, aluminium profiles and much more.

Advantages

Few advantages 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 Can Be Recycled, Facilitating 100% Reusability Of The Substance 
- Produces Less Hazardous Waste When compared with Traditional Using Liquid 
- Lesser Operating Cost Than Liquid Lines

Procedure for Powder Coating

The Powder Coating Equipment are employed in following basic processes:

- Part Preparation Or The Pre-Treatment 
- The Powder Application 
- Curing

Processes And Equipment Of Part Preparation

Ahead of the powder coating process eliminating lubrication grease, metal oxides, mud, oil etc are necessary. There are numerous chemical in addition to mechanical methods of removing these substances through the metal surface. The method is dependent upon the performance requirement of the end product. In spray application process, chemical pre-treatments involve using chromates and phosphates. Phosphating and chromating from the substrate exist in multiple stage. Bonding from the powder on the metal involves cleaning inside the pre-treatment process. Sand Blasting can be an another way of preparing the surface just before coating. It can be utilized to provide finishing, etching, surface texturing and preparation and degreasing for products made from wood, glass, or plastic. Different powder coating applications can require various ways of preparation like abrasive blasting before coating. The net consumer market typically offers media blasting services coupled with their coating services at additional costs.

Commonly electrostatic gun or corona gun is employed for applying the powder coating to metal objects. Here, lets discuss the working of electrostatic gun. Negative electric charge is imparted towards the powder. The negatively charged powder will then be sprayed towards the grounded object by mechanical or compressed air spraying equipment. It's then accelerated for the workpiece by the powerful electrostatic charge. The article will be heated, and also the powder melts in a uniform film, which is then cooled to make a hard coating. To achieve more uniform finish preheating may help but problems can even be created as runs due to excess powder.

Tribo gun may be the second type of gun which is often used to spray powder on metal surfaces. The powder is first charged by triboelectric friction and the charged powder particles then follow the grounded substrate. It will take a different formulation of powder with respect to corona guns.

Fluidized bed method doubles for Powder coating. At first the substrate is heated and after that 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 particular approach to [http://wallinside.com/post-33311479-thoughts-on-swift-systems-of-powder-coating-supplies.html powder coating supplies].