| By using flame, electric arc/ plasma or laser and the right coating material, you will get exactly the surface you need. It is easy and very profitable. You can improve resistance to wear, corrosion and heat. You can increase or decrease friction or change the electrical properties of the surface. Damaged surfaces can be repaired and faulty manufactured parts can even be given the right dimensions. In most cases, the surface can then be treated additionally with no difficulties.
Boosting productivity leads to increased demand on surface quality. When passing the limits for what are possible to achieve with surface treatment of solid materials the surface can be improved using coating methods.
"Thermal spraying comprises processes in which surfacing materials are heated to the plastic or molten state, inside or outside of the spraying gun/torch, and then propelled onto a prepared surface. The substrate remains unfused." Definition according to EN 657:1994
Strive to achieve dense layers have resulted in equipment were the kinetic energy is increased with reduced thermal input. Further development of high velocity thermal spray methods have led to Cold Gas Spraying where the surface material is propelled and plasticized hitting the substrate and thus forming the combination with the basic material. This procedure is similar to explosion welding. |
