Sandblasting: this type of mechanical surface cleaning is applied in case when there either corrosion burrs or other type of solid impurity (paints) on the surface, which impair the quality or the appearance of powder coating. In case of compressed air particle blasting usually the particle consists of sands with different size.
Particle blasting is the process through which metal particles are shot onto the surface. This process is the most suitable for cleaning rusty and contaminated surfaces. The particle blasting chamber is used for surface cleaning of iron and steel raw materials, surface cleaning and deburring welded structures as well as surface preparation for painting.
During the compressed air particle blasting the particles (usually different sized metal particles) are shot onto the surface to be cleaned with the help of compressed air. The particles having high amount of energy in the moment of the collision wipe off the top surface layer of the material to be cleaned due to the friction-wear effect.
Not even the best and most expensive paints can offer the appropriate protection when the corrosion acts from inside out. This process can remove the rust, burrs and old paint coats from every surface. The quality and quantity of the media is determined by the surface to be cleaned
The particle blasting process can yield surfaces with surface quality of SA2.5-3 which if perfect for standard base coats and cover paint coats and also for high quality powder coating as well.
The SA3 quality surfaces are suitable for zinc plating which is one of the most efficient corrosion protection technologies. In many cases it can replace the very widely used galvanization process.the other advantage of the particle blasting process is the good surface quality it yields and allows a very good adhesion for the coats or platings to be applied later.
The cleaning of contaminated or painted surfaces may be done in different cleanliness steps.
Details:
Machine: CLEMCO
Blasting cabinet size: 3000 mm x 6000 mm x 3000 mm
