GBF-1700-RHP4 is a rapid hot press (RHP) in a glovebox with a fast cooling function. The sample is inductively heated along with a graphite press die up to 1600 degrees and is pressed up to 100 MP with a 5-ton electric press.
It is a cost-effective lab-scale instrument for air-sensitive materials hot pressing. The RHP furnace has a comparable performance with a traditional SPS but at a much lower cost. Please kindly review the literature below for details.
Reference: " Rapid consolidation of powdered materials by induction hot pressing " published by Review of Scientific Instrument 82, 025104 (2011), which initially provides RHP's idea.
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Power
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- 208-240VAC, 3 ph, 50-60Hz, 15kW
- 380V, 400, 480VAC, 3 ph, is also available upon request.
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Electric Press
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- Power: 24VDC 90W
- Oilless design to ensure glovebox environment.
- Programmable settings of pressure control and dwelling.
- Force: 100 - 5000 kg ± 1 kg
- Weight: 250 lb.
- The induction coil is placed inside the glovebox along with a thermal insulation jacket. It moves up and down for rapid heating and cooling.
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Induction Heater
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- 15 kW induction power supply.
- Frequency: 30 ~ 80 kHz (fixed)
- Duty cycle: 80%
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Temperature Controller
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- Digital PID temperature controller
- Programmable 30 segments for heating, dwelling, and cooling
- Overheating and thermocouple failure protection
- Temperature accuracy: ± 5ºC
- C-type thermocouple with tungsten or molydbneum sheath
- Continuous working temperature range: 1000 ~1700ºC
- Maximum heating rate in a vacuum for a 0.5" ID graphite pressing die without any thermal block
- 4ºC/s (4 mins 50 seconds from room temperature to 1200ºC)
- 2ºC/s (5min 40 seconds from 1200 to 1300ºC)
- 1.5ºC/s (6min 46 seconds from 1300 to 1400ºC)
- 1.2ºC/s (8mins 10 seconds from 1400 to 1500 ºC)
- 1ºC/s (9mins 50 seconds from 1500 to 1600ºC)
- The experimental cooling rate in vacuum:
- 3.5ºC/s (~ 2 mins 20 seconds from 1600 to 1200ºC)
- 1.1ºC/s (~ 8 mins 10 seconds from 1200 to 800ºC)
- 0.4ºC/s (~ 21 mins 25 seconds from 800 to 500ºC)
- 0.16ºC/s (~ 37 mins 15 seconds from 500 to 350ºC)
- 0.06ºC/s (~ 104 mins 20 seconds from 350 to 150ºC)
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Glove Box
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- A standard glovebox with a gas purification system with < 1 ppm oxygen and moisture.
- All feedthrough for power, thermocouple, induction coils, and communications are included.
- For details of MTI glovebox, please kindly review the link.
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High-Temperature Graphite
Pressing Die Set
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- Two graphite supporting rods
- 0.5" ID graphite die, up to 50 MPa.
- 0.5"ID: Max. 1.26T (sample pressure 100 Mpa)
- 1.0 ID: Max. 5.06T (sample pressure 100 Mpa, which is optional)
- The graphite pressing die is fragile and consumable.
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Note:The maximum pressure range of graphite dies will vary depending on the inner diameter of the die.
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Net Weight
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Compliance
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- CE certified
- NRTL certification (UL 1450) is available upon request at an extra cost
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