Read e-book online A guide to high-performance powder coating PDF

By Bob Utech

ISBN-10: 0872635473

ISBN-13: 9780872635470

A advisor to High-Performance Powder Coating examines bills, functionality, and environmental results. The textual content appears at technical advances made in powder coating techniques and kit, and it explains those strategies for these within the attempting to preserve a aggressive aspect. Powder coating fabrics and their functionality houses are checked out besides electrostatic theories, curing, and ovens. The e-book seems to be at layout and development facets of the pretreatment washing machine procedure and explores tracking and preserving pretreatment platforms, in addition to the basics of heading off pretreatment failure. different subject matters contain apparatus hoppers and feeders, powder cubicles, purposes, working stipulations, and issues of safety. functionality checking out, together with criteria and chemical resistance, are defined. additionally, troubleshooting methods while a product is off color, off gloss, or shows terrible adhesion characteristics is gifted

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There can be many design feature options for a convection oven. Some considerations include: • Internal structural steel should use bolted clips and welded construction with slotted bolt holes to allow for oven expansion. • Steel should support additional conveyor work and the workloads. • The structural support column should be anchored to the building floor. • Since oven heat rises naturally, some companies prefer to install ovens at ceiling height. This enables the parts to enter and exit under the oven rather than into an opening on the side of the units.

CORONA CHARGING AND TRIBOCHARGING The corona is a highly charged field concentrated at the electrode or end of the gun. Through the use of high-voltage output supplies, corona charging is accomplished. Successful powder coating depends on effectively charging the surface powder particles’ surfaces. A high voltage of 30–100 kilovolts (kV), and usually a negative polarity, is applied to the charging electrode. This voltage creates a strong electric field around the electrode. p65 33 4/10/02, 11:39 AM A Guide to High-performance Powder Coating discharge and an ion current.

When a painter attempts to apply powder into recessed areas, the charged powder particles tend to attach themselves to the closest ground. Unfortunately, the closest ground is not usually where the painter wants the powder to be applied. p65 35 4/10/02, 11:39 AM A Guide to High-performance Powder Coating ization is also a major cause of what is termed the “self-limiting” property of powder coating, because it greatly reduces transfer efficiency. Adjacent surfaces to the inside corners attract the charged powder.

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A guide to high-performance powder coating by Bob Utech

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