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1100C Three Zone High Pressure & High Vacuum Tube Furnace with Super-Alloy Tube - OTF-1200X-III-HP-80

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Item Number: OTF1200XIIIHP80

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OTF-1200X-III-HP-80 is a high-pressure/ high vacuum split tube furnace with three heating zones. The processing tube is made of a Ni-based superalloy, which offers a solution for heat treatment under both high positive pressure and high vacuum pressure with/without inert gas support to process special compound materials. The furnace can be heated up to a max. 1100°C at 2.5 bar pressure (or 900°C at 80 bars). 

SPECIFICATIONS
Structure

Working Pressure Vs Temp.
  • 200  bar Max. at   650 °C
  • 140  bar Max. at   800 °C
  •  80  bar Max. at   900 °C
  •  50bar Max. at 1000 °C
  •  2.5  bar Max. at 1100 °C
  • 1.2   Bar Max. at  1150 °C
  • Never heat up above 1200°C

Working Gases
  • Inert gas or oxygen
  • No hydrogen or any flammable gas is allowed

Heating Temperature
  • 1100 °C max.for < 1 hour 
  • ≤ 1000 °C continuous
Heating Rate
  •   0   –  200 °C:    ≤ 10  °C/min
  • 200  –  700 °C:    ≤  6  °C/min
  • 700  –  900 °C:    ≤  3  °C/min
  • 900  – 1100 °C:    ≤  1  °C/min
Cooling Rate
  • 1100 – 800  °C:    ≤  5  °C/min
  •  800 – 200  °C:     ≤ 10 °C/min
  •  200 –     0  °C:    free cooling

Heating Zone

  • Three heating zones:  150 mm + 150 mm + 150 mm
  • Total heating zone length: 450 mm 
  • Constant temp. zone: 280 mm ±1°C
Temperature Gradient

  • The furnace is able to achieve a temperature gradient up to 19 °C/inch (150 °C / 200 mm), if
    • The Center zone is heated up to 1000 °C
    • Left and right zones remain idle
Heating Element
  • Fe-Cr-Al Alloy doped by Mo
Thermocouple
  • Three Omega K-type thermocouples (OD 3 mm) in the furnace
  •        




Temperature Control

  • Three precision digital temperature controllers with 30 programmable segments and +/- 1 ºC accuracy
  • Safety protection of over-temperature and broken thermocouples are integrated
  • PC control software is available at an extra cost
  • Eurotherm 3000 controller with +/-0.1°C accuracy is available upon request at the extra cost.
                    



Process Vessel   
  • Made of Nickel-based superalloy GH747(Click to download GH747 nickel-based alloy datasheet)
  • Size: 85 mm OD x 50 mm ID x 1000 mm L
  • Working gasses: O2 and inert gasses such as N2, Ar, and He
  • Small quartz or alumina boat should be used to load the sample inside the tube. Never place the sample directly onto the tube without a crucible, which may greatly shorten the processing tube service-life
  • Warning: Never put the sample inside the tube directly without crucible or isolated foil to avoid sample react with tube alloy.
  • You may use gold or nickel foil to wrap the crucible to minimize the contamination to the pressure vessel.
  • Attention: The processing tube is consumable. Pls click the photo below to order a spare one
  •     
Pressure Sensor and Valve


  • A pressure gauge with a range of 0 – 25 MPa and an over-pressure alarm is installed (downstream side)
  • A pressure control valve with a working range of 0.2 – 15 MPa is installed (the upstream side with a 1/4" BSPP venting port)
  • If the measured pressure reaches the high-pressure alarm value, the pressure control valve will be opened until the pressure drops 0.2 MPa (2 bars) below the alarm value
  • The manual pressure relief valve is installed for manual pressure control and relief (the downstream side with 1/4" BSPP gas outlet port)
High-pressure relief valve
  • A safety pressure relief valve is recommended  (the upstream side with 1/4" NPT venting port)
  • Please info us of your application temperature and we will pre-set the release pressure for you.  For example, you need to heat to 800C, the Max working pressure should be 140 bars, we will pre-set the relief valve to 140 bars. 

Flange and Fitting
  • A pair of 63 mm CF-type flanges are included. Please use a torque wrench (optional, not included) to avoid over-tightening the flange bolts.
  • 2 pieces of copper O-rings (99 mm OD x 82 mm ID x 2.2 mm thickness) are included. Please order extra copper O-rings as consumable parts
  • A pair of cooling fans are included for air cooling the flanges
  • One mobile cart with installation holes is included for easy setup and immediate use
               




Optional Parts
(with extra cost)

  • Please order heavy-duty rotary vane vacuum pump EQ-YTP-50 for low vacuum operation (Pic  #1)
  • If a high vacuum is needed, please use the turbopump station EQ-PV-HVS2 (Pic. #2), which can reach 10-6 torr vacuum
  • Gas flow control system is available upon request (Pic. #3)
  • Please use a torque wrench (optional, not included) to avoid over tightening the flange bolts (Pic. #4)
  • To measure the electric properties of thermoelectric ceramics under high pressure & high temperature, please order alumina fixture and high-pressure electrical feedthrough (10 MPa max) with the furnace at extra cost (Pic.  #5 & #6)
      12   3           4    5    6
Power
  • AC 208 - 240V 50/60Hz, single phase
  • 3.8 KW (25 A breaker required)
Operation Instruction         
Compliance and Warranty
       
  • CE certified
  • NRTL or CSA certification is available upon request at the extra cost.
  • One year limited warranty for lifetime support
    Safety Notes
   
  • Ni-based Superalloy ( Waspaloy or equivalent) is a reliable processing tube, which has excellent ductility and tensile property so only creep deformation happens under overpressure before a cracking.
  • Please see pics left to see Ni-based Super-alloy ( Waspaloy or equivalent) processing tube under overpressure test
  • Attention: For the use of flammable, toxic, or corrosive gases, you must contact the MTI engineering group for a consultation to know all the prerequisites and precautionary measures.

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Notices
1. Prices listed online are valid for the US market and who pay by credit card only. There will be extra charges for shipping & handling. Prices vary from country to country.
2. We may add extra charges for paper orders and NET 30 terms due to extra labor costs.
3. The prices listed are subject to change without notice.