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Thermal Spray Powders
Special Capabilities / Powder Mfg.
• Gas atomization– MCrAlYs, metal alloys,
superalloys & braze powders
• Sintering– Carbide and ceramic powders
• Casting– Carbide and ceramic powders
• Composite/Agglomerate – TBC, metal alloy & carbide
powders
• Physical Blending– Cr2C3-NiCr & others
• APT Technology– Chromium and tungsten based
Atomization
• Prepare raw materials• Vacuum induction melt• Pour molten metal• Break molten metal into
droplets and rapidly solidify (atomize)
• Collect powder
Atomization“Close-up”
Melt ChamberInduction Furnace
Collection Bucket
VIGA 250
Sintering
• Procedure– Mix raw materials– Place in furnace– Program furnace cycle
(heating & cooling)– Sinter– Breakdown sintered
mass
Composition A
Composition B
Composition C
to cause to become a coherent mass by heating without melting
Sinter:
Sintering
Cast & Crush
• Prepare raw materials• Heat raw materials until
molten (alloy)• Cast into crucible• Crush solidified mass
High Electric Current Melting
Composite / Agglomerated
• Mix raw materials into a liquid chemical suspension
• “Atomize” or drive-off binders to form agglomerates
• Collect dry agglomerated powder
Composition A
Composition BOrganic Binder
Composition BComposition A
Thermal Barrier Coatings
Physical Blends
• Prepare raw materials (previously manufactured)
• Blend
W-APT Powders
W-121 40 36 20 - 4 W-124 36 48 12 - 4 W-129 34 45 - 18 3.61350 1 81 4 10 - 5.21256 2 4.5 28 61 2.5 1.3
W Cr Co Ni C
Particle Size Distribution
180µ80 mesh
150µ100 mesh
125µ120 mesh
106µ140 mesh
90µ170 mesh
75µ200 mesh
63µ230 mesh
53µ270 mesh
45µ325 mesh
38µ400 mesh
22µ 16µ 11µ 5µ
PTA LPPS
PLASMA PLASMA
LASER HVOF-DJ
HVOF-JK
HVOF-JP
HVOF-HV
BRAZING/ADH BRAZING/ADH
Operational Excellence
Co-249 -22u
UCL=48.0
LCL=40.0
CEN=43.0
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