Mainly used to improve the wear and corrosion resistance of basic materials and as repair layers.
Metal coating is a thermal spray process during which the metallic spray powder is sprayed onto the component. With the thermal spraying process (EN 657 and ISO 14917 classify the processes according to the energy source), numerous applications are possible, utilizing the advantages (little heat input, functional surfaces, broad material selection, etc. reworking instead of new part production).
Metal coating by means of thermal spraying to components offers many advantages
- Pure metals are used as corrosion protection, e.g. in lake and sear water environments. Metal coatings have very good wear and excellent emergency running characteristics.
- Thermally sprayed, steels and alloys are used as repair layers (similar structure). Apart from that, such metal coatings distinguish themselves by good corrosion and wear resistance.
- Self-flowing alloys offer corrosion protection, oxidation protection as well as wear protection. By means of melting, gas- and liquid-tight layers can be achieved which how excellent resistance to all types of wear and withstand highest mechanical loads.
- Non-ferrous metals are perfectly suited e.g. as repair layer. Thermally sprayed non-ferrous alloys distinguish themselves e.g. By good heat shock and corrosion resistance, also with excellent adhesive strengths.
- Hard metals offer excellent wear resistance to numerous types of mechanical wear and very good corrosion resistance also at higher temperatures. Hard metal coatings are excellent alternatives to hard chromium coatings.
- Pseudo alloys are thermally sprayed and distinguish themselves by self-lubricating properties (e.g. Ni graphite), very good wear resistance (e.g. ceramic metal) or good anti-adhesion properties (e.g. metal plastic).