In this process the wire is deposited in the form of molten or semi-molten metal on a support previously cleaned. It exploits the heat flux (2500-3000°C) says a gas combustibile (acetylene and propane) which melts the wire in millions of metallic particles (atomized) projected at a speed of 40m / s by a jet of compressed air.
As soon as the particles strike the substrate at a temperature of 150 ° C, flatten, adhere and conform in the irregularities of the surface. The particles impact on the substrate elastic deforming and immediately solidifying. The coating is formed by millions of particles deposited on one another, the average size of the particle will vary on average from 10-20 micron. The thickness of the coating is a function of the number of passes.
Typical applications are:
a) Applications corrosion.
b) Restoring worn parts such as pistons, cylinder compressors, crankshafts etc..
c) Anti-Seize coating in lubricated couplings: forcelle, change, synchronization rings etc..
d) Realization of bearings (bearings), bearings etc..
The metals are most frequently sprayed: stainless steels and carbon steels, molybdenum, bronze, copper, white metals, zinc, aluminum, cut ecc…