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Published byTracey Mason Modified over 9 years ago
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Thermal Spray Powders
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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
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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 Chamber Induction Furnace Collection Bucket
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VIGA 250
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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:
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Sintering
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Cast & Crush Prepare raw materials Heat raw materials until molten (alloy) Cast into crucible Crush solidified mass High Electric Current Melting
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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 B Organic Binder Composition B Composition A
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Thermal Barrier Coatings
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Physical Blends Prepare raw materials (previously manufactured) Blend
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W-APT Powders W-121 40 36 20 - 4 W-124 36 48 12 - 4 W-129 34 45 - 18 3.6 1350 1 81 4 10 - 5.2 1256 2 4.5 28 61 2.5 1.3 W Cr Co Ni C
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Particle Size Distribution 180µ 80 mesh 150µ 100 mesh 125µ 120 mesh 106µ 140 mesh 90µ 170 mesh 75µ 200 mesh 63µ 230 mesh 53µ 270 mesh 45µ 325 mesh 38µ 400 mesh 22µ16µ11µ5µ PTALPPS PLASMA LASERHVOF-DJ HVOF-JK HVOF-JP HVOF-HV BRAZING/ADH
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Operational Excellence
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