- THE TECHNOLOGY

In the electric arc spray process, the raw material, a pair of metal wires, is melted by an electric arc. The molten material is atomized by a cone of compressed air and propelled towards the work piece. This spray solidifies when it hits the surface of the work piece to form a dense coating, which protects against corrosion or reclaims/repairs components. Sprayed coatings may also be used to provide wear resistance, electrical and thermal conductivity, or for freestanding shapes.

Major advantages of the arc spray process are that the coatings are available for almost immediate use, with no drying or curing times; there is no risk of damaging the component; the deposits possesses a higher degree of bond strength than most other thermally sprayed deposits; the use of only compressed air and electricity mean more economic coatings.

Another mayor advantage is that spray is not a heating process, therefore, do not produce mechanical deformations.

One of the more important applications is part restoration. It is possible, in an economical way, to apply thick coatings on any component, without loss of strength. Moreover, it is possible to apply coatings with excellent sliding wear resistance as well as abrasion resistance.

- THE EQUIPMENT

Based on years of laboratory and field experience, TBA Arc Spray 300 is an easy-to-operate, robust system designed for maximum application flexibility.

The gun is light (~1Kg), easy to work and very strong. In fact, allows real continuous work.

Carefully controlled head/wire geometry ensures precise atomizing and reliable variety of spray patterns, with wires sizes of 1,6 or 2 mm.

The gun has a "push" wire design and allows hoses of 4 mts long.

Power unit (H class) is specifically designed for Arc Spray, provided with 10 voltage steps, and with a very efficient cooling system. When we specify 100 % working cycle this means continuous use.

- POTENTIAL USERS

Potential users are: mechanical maintenance offices of all kind of industries, welding and coating job shops, agricultural tools producers, mining industry, petrochemical industry, off-set and graphic printers repairing, galvanizing industries, blasting and painting job shops, etc.