Vacuum Gas Nitriding Furnaces

Vacuum Gas Nitriding Furnaces

Vacuum gas nitriding significantly increases the fatigue strength and service life of ferrous-based parts.  Benefits include case depths up to 0.025” and improved wear and anti-galling properties due to a 40 – 70% increase in surface hardness. Corrosion resistance is increased through nitrogen-enrichment of the alloy.  A controlled low processing temperature of 700 – 1200°F preserves the mechanical properties of the base material and minimizes distortion of the finished parts.

The Solar Manufacturing Model HFL-3648-LT is a batch type, horizontal front loading vacuum gas nitriding furnace with electrical resistance heating elements and gas quenching capabilities designed for commercial and captive heat treating shops.  Designed for heat treating, brazing, stress relieving, annealing, tempering, and vacuum gas nitriding.


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Features and Benefits

  • Horizontal, front loading design with hinged front door for easy, convenient, unobstructed loading/unloading of workloads
  • Autoclave locking ring closure eliminates door seal problems
  • Work zone measuring 36″W x 30″H x 48″D and up to 5,000 pound workload mass
  • Low mass, energy efficient graphite insulated hot zone for temperature applications to 1250°F
  • Flat graphite resistance heating elements and convection fans for accelerated, uniform heating rates
  • High performance external gas quenching for rapid cooling at positive pressures
  • Fully automated and programmable industrial controls designed by Super Systems, Inc. for precise process control and repeatability
  • Pre-oxidation capabilities as a pre-nitriding treatment which enhances the nitriding kinetics for uniform and repeatable nitriding results without traditional activation methods
  • Oxynitriding – a unique process developed by Solar Atmospheres providing an aesthetically pleasing blackened surface appearance with improved corrosion resistance
  • A large spring loaded safety relief port in case of gas over pressure
  • Designed for easy maintenance and minimal downtime
  • Consultation with Solar Atmospheres for customer recipe development
  • Meets NFPA 86 safety standard and AMS 2750, AMS 2759/6, AMS 2759/10 Aerospace Material Specifications


Typical Materials Processed in Vacuum Gas Nitriding Furnaces

  • Alloy Steels
  • Titanium
  • Tantalum
  • Inconel
  • Nitinol
  • Stainless Steel
  • Tool Steel
  • Precipitation Hardening Stainless Steel (PH)
  • AerMet® 100
  • Tungsten
  • Zirconium
  • High Speed Tool Steels
  • Copper
  • Brass
  • Hot Working Tool Steels
  • Nickel Based Alloys
  • . . . and more


Typical Components Processed in Vacuum Gas Nitriding Furnaces

  • Aircraft parts and equipment
  • Power Generation blades and components
  • Medical devices
  • Implants
  • Tooling
  • Gears
  • Braze assemblies
  • Plate
  • Forgings
  • Bar
  • Ingots
  • Weldments
  • Structural components
  • Castings
  • Sheet
  • Tube and pipe
  • . . . and more


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