For descaling, various methods can be used:
- descaling by bending
- flame cleaning
- High pressure water jetting
In hydromechanical blasting, high water pressure removes the scale. The plants, also referred to as scale scrubber, consist of several bars with special nozzles, through which the water radiates at high pressure obliquely to the surface. The process, also referred to as scale scrubber, consists of several bars with special nozzles. The special nozzle aligment creates an angular impact of the water jet to the surface of the steel. The operating pressure of the scale scrubbers is between 100 and 400 bar.
The workpiece is cleaned by breaking the scale by the effect of temperature shock and removing the scale with high water pressure. Temperature, evaporation and refractive effects act together in the hydromechanical process on the workpiece and reinforce. Evaporating water acts like small explosions and blows up the scale. Compared to mechanical processes, descaling with water is much more economical and effective.