Thermal Spray

Thermal spray

We carry out coatings with different material i.e. Aluminium, Zinc, S.S., ZnAl (85/15) Alloy,Tungsten Carbide. We also do coating over Boiler tubes.

Arc Spray (most often referred to as metalizing, TSA, TSZ, and TWAS) is the most productive and economical of all thermal spray coating systems. Arc Spray uses DC power to energize two conductive wires: one positive and the other negative. These energized wires are then fed through a feeder into a gun head. It is at the gun head that the wires meet and arc against each other, thus creating molten material.

We then introduce ordinary dry compressed air to the arc zone, atomizing the molten material into tiny droplets while also propelling then toward the prepared part. As the droplets hit the work piece or part, they flatten out and make splats. The splats interlock one on top another to create an extremely strong mechanical bond.

The coating's thickness is variable, meaning to say it can be sprayed on at thickness as thin as .5 mil or as high as 4 mils. Coating requiring milsthicker than 6 mils is recommended to be layered with multiple passes.

Twin Wire Arc Spray (TWAS) process addresses

Wear and Erosion

Abrasion

Adhesive Wear

Cavitation

Hard Chrome Replacement

High Temperature Environments

Corrosion Resistance

Atmospheric Environments

New Part Manufacturing

Cathodic Protection

Chemical Environments

Friction Engineering for Fretting

Galling

Anti-skid/Traction

Tribological Coatings

Dimensional Restoration of parts requiring repair