High Velocity Oxygen Fuel (HVOF)
Faraday Metaltron’s Diamond Jet System uses high kinetic energy to produce dense coatings with no discernible porosity. Our coatings exhibit extremely fine as-sprayed surface finishes in addition to high bond strengths.
The H.V.O.F process uses an oxygen fuel mixture to melt the selected carbide and powder alloys which are then accelerated at a velocity 4 times the speed of sound. The high velocity particles flatten upon impact with the substrate to form a dense, tightly bonded coating.
Tungsten and Chromium Carbide coatings are exceptionally hard and well bonded. Typical coatings exhibit hardness in the Rc.64-66 range. Significantly, tensile bond strengths exceed 12,000 psi. Tensile. Coatings show a fine surface texture with no discernable porosity.
If a ground surface is required, coatings can be easily finished to 2-4 micro inches.
SPRAY FUSE
This process is an art form where extremely hard and dense coatings are sprayed onto a pre-heated surface.
The coating is then fused at 1980º f (1080ºc) to produce a metallurgical bond to the substrate.
Fusing also eliminates all porosity, which in turn provides an excellent wearing surface under the most severe conditions. Diamond grinding will finish the surface to size, tolerance and fine surface texture.
THERMAL ARC METALLIZING
Not to be confused with spray welding, Thermal Arc Metallizing (T.A.M) represents the most current technology providing results unattainable with older and outdated equipment.
Pre-alloyed wires are introduced to an electric arc, melted and propelled by processed air to impact a prepared surface. The high velocity at impact produces a build with exceptional density; bond strengths in excess of 10,000 psi. Tensile and hardness from 42Rc to 55Rc are readily achievable.