Thermal coating
Now in Hamburg too - Wire flame spraying
Thermal coating is an important component of remanufacture, maintenance of value and servicing of components in all sections of the industry. This technology enables coating of almost any base material. An array of spray materials are available for the different applications. These are fusion-bonded during thermal coating. The characteristics of the coating are defined by the application, the spray process and the spray material.
We can apply coats up to 10 mm thick using this process. Thermal spraying has a fixed place in industrial production alongside the production processes of soldering and welding.
High-speed flamm spraying (HVOF) and plasma spraying are applied when there are particular requirements on abrasion and corrosion resistance, impermeability and purity.
We can also perform thermal coating locally if required.
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Wire flame spraying
With wire flame spraying the spray material is fused in wire form in an acetylene oxygen flame and atomised onto the part using compressed air.
The particle speeds on impact with the part reach approx. 200 m/s.
High-speed flame spraying
With HVOF spraying the kinetic energy of the shot particle is increased using an oxygen-kerosene mix. We fuse the spray material in the flame and apply it to the part at approx. 600 - 700 m/s. This produces top-quality, hard, very dense and highly wear-resistant coatings.
Plasma spraying
The plasma, which occurs using a plasma mix (Ar, H) and an arc that moves between an anode and a cathode, has a temperature of approx. 20.000 °C. This process enables us to spray high-melting materials, e.g. ceramics.
