Blasting cabinet

Inserts that are to be used in the molding have to be prepared by either grit blasting or chemical treatment. The grit blasting operations must be carried out in a sand blast cabinet or the operator must be in an approved air-supplied garment. If solvent-based adhesives are used, appropriate personal protective equipment must be worn (chemical mask, gloves, and apron) and the operation carried out in a fume extraction hood. 

Abrasive grit blast methods for removal of corrosion products have increased in pxjpularity in recent years. Some test sp>ecifications specifically list this as the preferred cleaning method [5]. Fine abrasive grit (the author has used 120 grit glass bead) is used in an air-p>owered blast cabinet. The surface of the coupen is blasted until removal of all visible corrosion products is observed. Mass loss and corrosion rates are then determined by standard methods. 

Blasting Cabinet An enclosure where the operator stands outside and operates the blasting nozzle through an opening or openings in the enclosure. 

The circulating type of elutriator, as developed by Roller is similar to the up-blast but the sample of powder is caused to circulate in a U-tube at the base of the elutriator tube. The elutriator has four chambers, to each of which is attached a paper extraction thimble collector for the fines. Ancillary equipment, including mechanical rappers, is included and the instrument is contained in a sound proof cabinet. 

These levels of primer and adhesive cover were found to be resistant to salt cabinet attack after 72 hours, even if metals had only previously been grit blasted, without any chemical treatment of the metal surfaces. 

Use contaimnent methods, such as blast-cleaning machines and cabinets, to control the hazard and protect adjacent workers lirom exposure. 

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