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Vacuum Hot Press

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A Vacuum Hot Press is a high-temperature pressing system used to consolidate powders, composites, ceramics, and metal parts under simultaneous heat and uniaxial pressure, in a vacuum or controlled atmosphere.
How It Works
  • Powder or compacted material is placed in a die inside the furnace.
  • The system is evacuated (vacuum pumped) to remove air/gases.
  • Heat is applied via graphite or molybdenum heating elements.
  • Uniaxial pressure (vertical) is applied using a hydraulic ram.
  • Material sintering, bonding, or densification occurs.
  • Result: A fully dense, high-purity part with controlled microstructure.


Advantages
  • Purity - vacuum removes contaminants & oxidation
  • High density and fine-grain structure
  • Strong mechanical properties
  • Precise control of temp, pressure, and atmosphere
  • Ideal for complex materials and powder metallurgy
Common Applications
  • Aerospace - CMCs, tungsten parts, high-temp seals
  • Electronics - Semiconductor wafers, substrates
  • Defense - Armor components, specialty alloys
  • Research/Labs - Custom materials, experimental composites
  • Tooling - Carbides, wear-resistant inserts