Redesigning Blasting Nozzles to Improve Productivity

Author:  Gary S. Settles, Stephen T. Geppert
Source:  The Shot Peener magazine, Vol 11/Issue 2, June 1997
Doc ID:  1997046
Year of Publication:  1997
Abstract:  
This article was first published in the Journal of Protective Coatings & Linings, October 1996, pp. 64-72, and is reprinted with permission of the publisher, Technology Publishing Company, Pittsburgh, PA. In a previous article (see 1.), Settles and Garg discussed the discrepancy between the low level of abrasive blasting technology and high-technology rocket propulsion, though the two have much in common. The importance of nozzle pressure and abrasive particle size in blasting productivity was also examined. Most important, a considerable opportunity to improve productivity by scientifically optimizing blasting nozzle design was identified. Since current nozzles are not very efficient, a doubling of productivity was judged to be possible. This, in turn, could have a considerable positive financial and environmental impact on the protective coatings industry.