By Bob Utech

A advisor to High-Performance Powder Coating examines charges, functionality, and environmental results. The textual content seems to be at technical advances made in powder coating techniques and gear, and it explains those ideas for these within the attempting to preserve a aggressive side. Powder coating fabrics and their functionality houses are checked out besides electrostatic theories, curing, and ovens. The e-book seems at layout and building elements of the pretreatment washing machine approach and explores tracking and preserving pretreatment platforms, in addition to the basics of heading off pretreatment failure. different issues contain apparatus hoppers and feeders, powder compartments, functions, working stipulations, and questions of safety. functionality checking out, together with criteria and chemical resistance, are defined. furthermore, troubleshooting techniques whilst a product is off color, off gloss, or indicates terrible adhesion traits is gifted

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Many times, ions from the external field can no longer reach the particle because the particle’s field repels them. In this case, the particles have reached maximum charge, given the external field strength, particle size, and material. 394 in. [1 cm]), the attraction between the charged powder particles and the grounded part causes the particles to effectively deposit on the part. Most materials used for powder coatings are strong dielectrics. Once charged, the charge does not “bleed off” quickly.

Not all airflows are equal. Different processes require different airflow patterns, as shown in the following examples: • Horizontal/vertical airflow is ideal when working with large parts, when a process needs air circulation from both sides, and before the air returns to the top of the oven. • Vertical airflow is best suited for processes where parts are hung from racks or hooks, and with the air supplied from the floor and returned to the top of the unit. • Full horizontal airflow is most applicable when the product is loaded onto shelves or a shelf cart for processing.

Skilled powder coating applicators can make the internal and external systems deliver equal performance when painting. p65 39 4/10/02, 11:39 AM A Guide to High-performance Powder Coating HIGH-VOLTAGE POWER GENERATION In corona-charging systems, high-voltage power supplies generate an electrostatic field. The first stage is an adjustable DCpower supply in the control box driving the oscillator. This, in turn, feeds the high-voltage transformer, increasing the low voltage at the oscillator to approximately 10 kV.

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