Prime Machine offer premier Metal Spraying technologies of: HVOF, Twin Arc, and Thermal spraying

The Prime Machine Revolution of Metal Spraying: HVOF, Thermal Spray, and Twin Arc Systems

In the world of surface engineering and coating technologies, metal spraying stands out as a cornerstone technique that revolutionizes how industries protect and enhance the performance of components.  Our web page delves into the intricacies of metal spraying, focusing on three pivotal technologies: High-Velocity Oxygen Fuel (HVOF) coating, Thermal Spray, and Twin Arc Spray Systems. By unpacking the advantages of these coatings, we aim to illustrate why metal spraying is not just a process but a transformative investment for industries ranging from aerospace to energy.

Prime Machine Inc. Metal Spraying Technologies

High-Velocity Oxygen Fuel (HVOF) Coating

HVOF is a high-velocity, low-temperature process used to produce coatings of exceptional quality. By propelling a mixture of fuel and oxygen to combustion, the system generates a stream of molten particles directed towards the substrate. The result? Coatings that boast unparalleled density, bonding strength, and hardness.

Advantages:

  • Enhanced Wear Resistance: HVOF coatings significantly increase the lifespan of components by resisting wear from friction, erosion, and abrasion.
  • Superior Corrosion Protection: The dense and impermeable nature of HVOF coatings shields components from harsh chemicals and environments.
  • Restoration of Dimensions: HVOF can restore parts to their original dimensions or upgrade them, saving costs on replacements and reducing waste.
HVOF metal spraying coatings of seal surface repair

Prime Machine Inc repairing bearing and seal fits on shaft using high velocity oxygen fueled metal spraying procedure for a quality and economic service.

high velocity oxygen fueled metal spray coating to repair bearing fits on wheel spindle for haul truck.

Prime Machine Inc. haul truck spindle bearing fit and seal area repair with HVOF coating precision applied by robot, and then machined in Prime Machines large machine shop.

Thermal Spray

Our thermal spray encompasses a variety of processes, including plasma spray, electric arc spray, and flame spray. This method involves the heating of a consumable material, then propelling it onto a substrate to form a coating. It’s known for its versatility across materials, including metals, alloys, ceramics, and plastics.

Advantages:

  • Versatility in Applications: From thermal barriers in turbines to electrical insulation, the applications of thermal spray coatings are almost limitless.
  • Customizable Properties: By adjusting the feedstock material and process parameters, thermal spray coatings can be tailored to meet specific functional requirements.
  • Quick Application and Minimal Downtime: Thermal spray processes are relatively fast, allowing for quick turnaround times and minimal operational disruption.
Thermal spraying component with babbitt to provide repair of bearing surface.

Thermal spraying babbitt to repair surface for skirt of piston.

Twin Arc Spray Systems

Prime Machines Inc. twin arc spray technology uses two consumable metal wires as the coating material. An electric arc melts the wires, and a compressed gas atomizes the molten material, propelling it onto the substrate. This system is especially effective for applying zinc, aluminum, and alloy coatings.

Advantages:

  • Cost-Effectiveness: Twin arc spray offers a high deposition rate with lower material costs, making it a cost-efficient option for large-scale applications.
  • Excellent Adhesion and Coating Uniformity: The process ensures strong bonding to the substrate and uniform coating thickness, enhancing surface protection.
  • Flexibility and Efficiency: It’s suited for both onsite and offsite applications, providing flexibility without compromising on the speed or quality of the coating.

Why Invest in Metal Spraying?

Economic and Environmental Benefits

Metal spraying, with its capacity to extend the life of parts, offers a sustainable alternative to part replacement. By refurbishing worn components, industries can significantly reduce their environmental footprint, aligning with global sustainability goals.

Enhanced Performance and Reliability

The superior properties of metal sprayed coatings translate into components that perform better and last longer under extreme conditions. This reliability is crucial for industries where failure is not an option, such as aerospace and energy.

Customization and Innovation

Our metal spraying technologies continue to evolve, offering ever-greater possibilities for customization and innovation. From creating surfaces that repel water and bacteria to developing coatings that withstand extreme temperatures, the potential applications are expanding the horizons of material science.

Conclusion

Prime Machine Inc metal spraying technologies like HVOF, thermal spray, and twin arc systems represent the pinnacle of surface coating solutions, offering unparalleled advantages in terms of durability, efficiency, and sustainability. By investing in these processes, industries can not only protect their components but also pave the way for innovations that push the boundaries of what’s possible. As we continue to explore and refine these techniques, the future of metal spraying shines brightly, promising a world where materials last longer, perform better, and contribute to a sustainable future.

 

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