Twin Wire Arc Spraying System
In the twin wire arc spraying system, also called arc spray, two wires (with opposite polarity) are electrically charged and fed into the gun until contact is made at the nozzle. At this point, an atomizing gas propels the molten particles onto the substrate.
This versatile system allows thick coatings of pure metals, cored wires, alloys and psuedo-alloys to be applied. This is useful in dimensional reclamation and atmospheric corrosion protection applications. It is also the preferred process for spraying large areas, particularly in the field.
Arc spray advantages:
- Low application temperature
- Relatively thick coatings are possible
- Variable surface finish as-sprayed
- Field-suitable
- Many materials are easily machinable.
- Wide variety of pure metals and alloys.
- Capable of spraying pseudo-alloys.
- ID capable to 36”.
Combustion Wire Spraying System
One of the earliest processes to be developed, this wire spraying system feeds spray material, in wire form, into an oxygen-fuel flame, causing the wire to melt. The molten particles are then accelerated onto the substrate by a stream of compressed air or inert gas.
