Shot peening technology involves spraying iron microbeads (diameter 1.7-2mm) onto the treated surface through one or more turbines Non contact cleaning of the workpiece surface using high-speed projectiles for long-distance ejection with the help of shot blasting equipment. Non contact cleaning of the workpiece surface using high-speed projectiles for long-distance ejection with the help of shot blasting equipment. The working principle of shot blasting cleaning is to convert the kinetic energy of the projectile into an impact force on the surface of the workpiece.
The efficiency of shot blasting cleaning depends on the number, size, speed, and direction of impact of the pellets. When spraying, remove the softer parts of the surface to form an extremely shallow irregular "orange peel" structure The sprayed microbeads and garbage are sucked in by a vacuum cleaner connected to a shot blasting machine, a special filtering system Iron microbeads will be automatically separated from the garbage, cleaned, and returned to the microbead cycle Garbage is separated into output boxes To ensure the recycling of microbeads, a special high horsepower vacuum cleaner (which is an integral part of the machine) can be added to work in parallel with the shot blasting machine. Shot blasting cleaning technology is the most widely used, efficient, and reliable method in international road and bridge construction.
Characteristics and application scope of shot blasting equipment:
- Simple operation and preparation work, easy to clean and evacuate at any time;
- Construction is carried out around the clock, especially during winter when construction is not affected;
- Construction operations are more convenient;
- The cleaning speed and depth can be set according to the different conditions of the bridge deck;
- The cleaned surface is neat and beautiful;
- The friction coefficient can reach 0.7~0.75, and the texture depth can be around 0.45;
- The rust removal of steel plates can reach a level of 2.5-3;
- The entire process of shot blasting technology is dust-free, with impurities completely recovered and no residual substances on the surface;
- No other auxiliary means are needed for further cleaning;
- No other energy and resource waste;
- Dry construction;
- Dispose of residues during construction.
