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Graphite & Tungsten Furnaces - Replaced With GAXP

New Energy Efficient Heat Treatment, Metallurgy and Brazing Furnaces

MHI is Revolutionizing Austemperating and Martempering with new style furnaces and E-Ions.

Quotaion request:  We need only the part temperature/cycle, number of parts per cycle, usable chamber volume and we can quote.

Austemper, Martemper, Braze, High Nitrogen Carbonitriding

Ask us also for your braze parts needs.  Extract the power of small devices that save energy, increase thrughput and save capital cost. Thank you.

Process Cycle (typical)

  • Soak 900°C-1000°C hold (user programmed)
  • Rapid quench to above or below Ms temperature. 
  • Critical temperature controlled hold at Austemper temperature.  (i.e. 200°C-350°C as defined by user)
  • Quench again and remove after furnace opens and charge is lowered.

Steel Processing. Cool past the the TTT and/or CTT nose and hold at a temperature.  Alloy 52000, high nitrogen steels and even SAE 1095 or other medium carbon grade and alloy steels.

Models are offered which are used in vacuum. High pressure quenching is also offered as an option. Choose from several models by contacting MHI.

While specifying your furnace please provide details of  the process if different than above.

Please Contact Us.

Generally the GAXP, Graphite and Tungsten furnaces are cold-shell, cylindrical box type with front opening.  MHI has dramatically reduced the price of sealed furnaces.  With atmospheres, which either have vacuum rating in clean dry atmosphere~ 0.005 torr or Inert Gas the patentented GAXP elements are now offered with a one year warranty.  The electrical feed-through's are water cooled up to the copper-graphite junction to avoid build-up of any junction resistance and subsequent arcing. The feed-through flanges are mounted with "O" rings - water cooled. The flanges are mounted with adjustable bolt/screw arrangement.  Please contact MHI for detailed specifications and prices. Click here for PDF

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©Micropyretics Heaters International Inc. 1995 - 2017
750 Redna Terrace Cincinnati, OH 45215, USA
Telephone: 513-772-0404 | Fax: 513-672-3333