Ruiskupuristus

Ruiskupuristus, also known as abrasive blasting or sandblasting in common parlance, is a surface preparation and finishing process. It involves propelling a stream of abrasive material at high velocity against a surface. This process is used to remove contaminants, create a surface profile for adhesion, or to change the surface's texture and appearance.

The abrasive materials used can vary widely, including sand, glass beads, metal shot, or synthetic abrasives like aluminum oxide. The choice of abrasive depends on the material being blasted, the desired outcome, and environmental considerations. The propelling force is typically generated by compressed air, though water (wet abrasive blasting) or centrifugal force can also be used.

Common applications of ruiskupuristus include cleaning rust and old paint from metal structures, preparing surfaces for painting or coating, etching glass, removing burrs from manufactured parts, and cleaning delicate historical artifacts. The intensity of the blasting process can be controlled by adjusting air pressure, nozzle size, and the type and size of the abrasive. Safety precautions, such as protective gear and ventilation, are essential due to the potential for dust and projectile hazards. Ruiskupuristus is a versatile industrial technique with a wide range of applications across various sectors.