Metal Spray & Specialty Coatings
HVOF Metal Spraying & Specialty Coatings
“Metalizing” or metal spray: HVOF metal spraying will yield higher bond strengths and denser coatings which means better coatings. Each procedure for metal spraying has unique advantages over the others. Let us guide you in choosing a metal sprayed coating.
Babbit Spraying Compressor Cross Head
babbitt spraying engine piston
Prime Machine utilizes the three major types of spray methods, including the recently- developed high-velocity oxy-fuel (HVOF) process.
The three types are; Flame or Arc Spray-and-Fuse, Plasma Spray, and HVOF metal spraying.
| Wear Coating Compressor Rods | Spraying Of Inside Diameters |
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High Velocity Oxygen Fueled HVOF metal spraying coating of tungsten carbide on shaft seal surface to restore the fit and function of shaft. The hard surface improves the life of seals by maintaining smooth surface for seal to ride.
High velocity oxygen fueled HVOF metal spraying mine truck wheel spindle repair of bearing fit. Robot controls spraying parameters for coating
Sprayed materials include:
HVOF Metal spraying- Carbide Coatings
| Materials/ Chemistry |
Hardness | Bond Strength |
Application Data |
| Tungsten Carbide Cobalt WCCO |
63-66 RC | >10,000 PSI | •Pump seals •Rolls •Jet engine parts •Machinery wear parts |
| Chrome Carbide Nickel Chrome Cr3C2NiCr |
65 RC | >10,000 PSI | •Turbine inner nozzle supports •Turbine exhaust struts •Fuel rod mandrels •Exhaust valves |
| Tungsten Carbide Chrome WcCoCr |
64 RC | >10,000 PSI | •Pump shafts with corrosion |
HVOF – Metal & Alloy Coatings
| Materials/ Chemistry |
Hardness | Bond Strength |
Application Data |
| Cobalt Molybdenum Chromium CoMoCr |
50-55 RC | 9500 PSI | •Very dense and well bonded •Good for pump components, valve shafts and exhaust fan blades •Excellent fretting wear |
| Iron Chrome Molybdenum FeCrMo |
53 Rb | 7500 PSI | •Excellent for corrosive and sliding wear below 1200°F |
| Nickel Aluminum NiAl |
45 Rb | 6000 PSI | •Bond-coat for carbides and ceramics •Coating offers wear and oxidation protection |
| Copper Cu |
60 Rb | 4000 PSI | •Exceptionally dense and machinable •Restoration of worn and mis-machined copper and copper-alloy parts |
HVOF – Ceramic Coatings
| Materials/ Chemistry |
Hardness | Bond Strength |
Application Data |
| Aluminum Oxide AL203 |
68 RC | 5000 PSI | •Very Smooth, with high dielectric (600-900 V/Mil) |
Plasma Spray – Ceramic Coatings
| Materials/ Chemistry |
Hardness | Bond Strength |
Application Data |
| Aluminum Oxide Al2O3 |
RC-71 | 5000 PSI | •Dielectric covering, textile parts •Pump shaft (seal areas) |
| Chromium Oxide Cr2O3 |
RC-74 | 5000 PSI | •Very hard, very high corrosion protection •Sliding wear for chemical pump shaft wear |
| Aluminum Oxide Titanium Dioxide Al2O 3TiO2 |
RC-69 | 5000 PSI | •Anti-static, cylinder liners •Molds, sliding wear from fibers •Resistant to acids and alkalis •Many textile applications |
Plasma Spray – Carbide Coatings
| Materials/ Chemistry |
Hardness | Bond Strength |
Application Data |
| Tungsten Carbide WCCo |
60 RC | 7,500 PSI | •Machine wear •Jet engine parts •Sliding wear (metal parts) |
| Chrome Carbide Cr3C2NiCr |
46 RC | 5,000 PSI | •Promotes extreme resistance to wear at high temperatures •Good for hot gas and corrosion resistance •Useful up to 1600°F |
| Tungsten Carbide Chrome WCCoCr |
50 RC | 7,500 PSI | •Improved oxidation and corrosion protection over WCCO •Excellent low-temperature wear properties up to 900°F |
Plasma Spray – Metal & Alloy Coatings
| Materials/ Chemistry |
Hardness | Bond Strength |
Application Data |
| Nickel Aluminum NiAl |
45-55 RC | 8,000 PSI | •Highly resistant to oxidation and corrosion •Very machinable •Excellent bond-coat for ceramics |
| Copper Nickel Indium CuNiIn |
75 Rb | 3,500 PSI | •Indium is renowned for its lubricating properties •Outstanding resistance to motion wear such as fretting and galling |
| Molybdenum Chromium Silicon Cobalt MoCrSiCo |
45 RC | 6,500 PSI | •Coating exhibits outstanding resistance to wear and galling •Very suitable for applications where lubrication is a problem |
Plasma Spray – Thermal Barrier Coatings
| Materials/ Chemistry |
Hardness | Bond Strength |
Application Data |
| Magnesium Zirconia MgO2ZrO2 |
RC 31 | 2,600 PSI | •Thermal barrier coatings for combustion applications •Abrasive wear up to 1600°F |
| Zirconia Titania Yttria ZrO2TiO2Y2O3 |
RC 55 | 5,000 PSI | •Thermal barrier coating •High temperature hardness •Resitance to sulfidation, chlorinization and sodium hot corrosion |
Arc Spray – Metal Coatings
| Materials/ Chemistry |
Hardness | Bond Strength |
Application Data |
| Aluminum Al |
Rb 35-75 | 4,350 PSI | •Chemical and corrosion resistance •Electrical conductivity •Aircraft approved |
| Copper Cu |
Rb 37 | 7,200 PSI | •Extreme conductivity •Copper reclamation •Alternate to copper plating •Decorative coatings |
| Nickel Ni |
Rb 58 | 4,100 PSI | •Corrosion protection at high temperatures •Excellent machined surfaces •Aircraft approved |
| Tin Sn |
Rb 70 | 2,500 PSI | •Sputtering targets •Electrical contacts •EMI/RFI shielding |
| Zinc Zn |
Rb 61-72 | 1,300 PSI | •Excellent bonding to non-metallic surfaces •Corrosion •EMI/RFI Shielding |
Arc Spray – Alloy Coatings
| Materials/ Chemistry |
Hardness | Bond Strength |
Application Data |
| Inconel 718 NiCrMo |
RC 30 | 9,000 PSI | •Aircraft engine dimensional restoration •Acidic and hot gas corrosion resistant |
| Iron Chrome Aluminum FeCrAl |
Rb 88 | 7,000 PSI | •Good for build-up •Good machinability •Excellent wear resistance |
| Nickel AluminumNiAl |
Rb 78 | 9,800 PSI | •Bond Coat •Oxidation/abrasion resistance at high temperatures •Aircraft approved |
| 420 SS FeCrNiSi |
Rb 40-45 | 8,000 PSI | •Corrosion protection •Dimensional restoration |