Quid magis est saxo durum, quid mollius unda? Dura tamen molli saxa cavantur aqua.

Publio Ovidio Nasone (43 a.C. - 18 d.C.) - Ars Amatoria, Liber I

Technology

The AQUAVIS founders boast an internationally recognized many years experience concerning the theory and application of High Pressure Waterjet Technology (HPWJ) already successfully used in a variety of operations and equipment from cleaning, de-rusting and de-fouling of boat and ship hulls to contour cutting of metals and other materials, including even some niche applications in medical science and aerospace industry.
HPWJ application entails many advantages such as, among others:

– High selectivity in the treatment of composite matter, enabling the reuse of the recovered products as secondary raw materials;
– Reduced wear of the tools (limited to the nozzles) in absence of mechanical contacts with the workpiece;
– Minimum production of processing waste;
– Good health and safety levels in the working environment thanks to the relatively low raise of water temperature, insignificant dust generation, no spark production, limited vibrations, dampened noise;
– No risk of fires or of thermal shocks for the workers;
– Minimum impact on the physical, chemical and mechanical properties of the materials under work;
– High accuracy level in the accomplishment of most complex tasks;
– Amenability of the process to full automation;
– Great flexibility of the technology for a variety of jobs concerning the characteristics and the geometric features of the materials.

On the other side the technology based on the use of extreme jet-generation pressures implies the employment of high-power water pumping systems and thus the consumption of elevated quantity of energy. Accordingly, the minimization of specific energy together with the improvement of product quality represents one of the main goals to be achieved, while processing cost can also be controlled by increasing the technical performance of the system.
Water supply depends on the required performance (material throughput to the disintegration unit, cutting speed or surface treatment rate) and it is linked to the number and kind of nozzles. However the requirement of fresh water can be reduced through the circulation of the process waters after their suitable treatment for the removal of impurities before feeding them back to the pumps.

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