Engineering Data for the Development of Controlled Cavitation Blasting for Surface Preparation of Structural Steel

摘要

The objective of this study was to generate the engineering design data for the development of a prototype field unit. The eventual goal is to develop a technique, based on controlled cavitation, to prepare new and previously coated structural steel surfaces for painting. The major advantage of this system is that environmental impact problems are greatly reduced because abrasive sand or grit is not necessary and the volume of waste is greatly reduced. The following engineering parameters were evaluated in order to design a prototype system, (1) nozzle distance, (2) nozzle design, (3) nozzle pressure, (4) intensity of cavitation erosion, (5) nozzle horsepower, (6) removal rates and profiling rates, (7) accessibility, and (8) paintability.