Check Screening Fine Powders

Russell Finex and automotive powder coatings

The United States Council for Automotive Research (USCAR) is made up of leading US car manufacturers Ford, Chrysler and General Motors. Car manufacturers have used powder as anti-chip and primer surfaces on many components for some years in order to increase durability. However, frequent color changes have made powder unsuitable for use as a color coat with reduced reclaiming capabilities. Previously, it had been difficult to screen fine powders efficiently using rotary sieves over long periods of time due to progressive mesh blinding.

Russell-Compact-sieve.jpgIn a joint research program to look into ways of reducing solvent emissions from automotive painting systems, Russell Finex supplied two 900mm Russell Compact Sieves® fitted with the Vibrasonic® Deblinding System to USCAR. The sieves were installed above the powder hoppers in the powder kitchen which pump both virgin and reclaimed powders. Using the Russell Vibrasonic® system, the problem of blocking mesh has been eliminated; even on mesh sizes down to 75 microns the ultrasonic sieving offers far improved plant efficiency and ensures continuous operation over many shifts.

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