Thermal Spray

Thermal Spray Coatings — AMS 2437

Four spray processes, one floor. Tungsten carbide, chrome oxide, aluminum oxide, molybdenum and more — deposited by the process that suits the substrate, then finished to size in-house.

AMS 2437

Choosing a process

Thermal spray melts a feedstock — powder or wire — and drives it onto the substrate, where it builds a coating mechanically bonded to the surface. The four processes below differ in heat source and feedstock, and that difference decides which one suits your part.

Because we run all four, the process gets matched to the job rather than to the one machine in the building. Coated parts are ground, machined and inspected here as well.

Processes

Plasma Flame Spray

Utilizes an electric arc and a combination of gases to produce a very hot high speed heat source. Powder is injected into the heat source and deposited onto the substrate.

Tungsten carbideChrome oxideAluminum oxideMolybdenumTungstenNickel

Flame Spray

Utilizes a compressed air source, a fuel gas and oxidizing gas (acetylene and oxygen) to produce a heat source. A wire is pulled through a gun and the heat source and blown onto the substrate.

CopperAluminumStainless steel

Twin Wire Arc Spray

Utilizes a DC power supply, compressed air source and two wires pulled through a gun. The wires exit the gun and form an arc, the arc melts the wires and the compressed air source pushes the molten material onto the substrate.

CopperAluminumStainless steel

Thermo Spray

Utilizes a fuel gas and oxidizing gas (acetylene and oxygen) to produce a heat source. Powder is injected into the heat source and blown onto the substrate.

Tungsten carbideMolybdenumSiliconAluminum oxide

Coating materials

Powder and wire feedstocks we run.

Tungsten carbide — wear resistance on hard-service surfaces
Chrome oxide — ceramic, hard and abrasion resistant
Aluminum oxide — ceramic, electrically insulating
Molybdenum — bond coat and low-friction wear surface
Tungsten
Nickel
Silicon
Copper, aluminum and stainless steel wire

Published capacity

Sprayed components range from small diameters up to long rolls. Send a drawing for anything outside this.

Published capacity
Component	Size
Small components	2" diameter
Rolls and long components	6" × 120"

Representative work

Sprayed components from our floor. This is a sample of past work, not a limit — send a drawing.

Taper Shaft
6" × 28"
Plasma Spray Ceramic and Finish Grind.
Bearing Fit Repair
2" diameter
Flame Spray Aluminum Bronze and Finish Machine.
Ceramic Packing Sleeve and Progressive Cavity Pump Drive Shaft
5 ¼" × 11", 3" × 20"
Plasma Spray Ceramic and finish Grind Packing Sleeve and Plasma Spray Ceramic and Finish Grind packing fit area on Drive Shaft.
Target
6" × 120"
Plasma Spray OD.
Ram Shaft
2 ½" × 12"
Plasma Spray Ceramic and Finish Grind.
Babbitt Bearing Shell
24" diameter
Flame Spray Babbitt and Finish Machine.