Technical Bulletin Impact Cleaning: Part I

Author:  unknown
Source:  ABC Newsletter Vol 1 No. 2
Doc ID:  1996133
Year of Publication:  1996
Abstract:  
Impact cleaning, commonly called grit blasting or sandblasting, is a process of bombarding a work surface with small particles traveling at thigh speeds. The particles are called the abrasive or the shot. Angular, blocky or sharp particles are abrasive since they "chip or cut". Special smooth particles are shot and pound or dent rather than cut. The veolocity or speed of the particles can be imparted to the particles in tow manners: 1) Mechanical - a throwing action with a centrifugal wheel or 2) Hydraulically - where the particles are entrained in a liquid or gas (air) which is pumped or forced through a nozzle at high pressure to accelerate the particles....