VMC-3000 is a vacuum furnace with induction heating up to 3000 ÂșC, designed for graphitization of carbon fiber and sintering of ceramic materials at super-high temperatures. It also can also be used as a molten salt electrolysis furnace with an optional feedthrough flange of electrodes.
SPECIFICATIONS:
Induction Heater
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- Working Voltage: 460V AC +/- 10%, 50/ 60Hz, Three Phases (380VAC, 3phase available upon request)
- Working Current: 20~130 AmpsÂ
- Max. Input Power: 70 KW
- Output Frequency: 5 - 20 kHzÂ
- Induction Coil: Ï380 OD xÏ364 ID x 120 H (mm)
- Protection: Automatic water pressure, over-temperature, and over-power protection
- Refractory Assembling: Complete refractory assembling made of graphite felt and alumina.
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| Temp. Controller & Thermocouple |
- IR temperature sensorÂ
- Digital controller with 30-segment programmable
- Overheating & thermocouple failure protection
- Max. working temperature: 3000ÂșC ( < 30 minutes)
- +/- 2 ÂșC temperature accuracy.
- Recommended Heating Rate:Â
- 10 ÂșC/ minute (1000ÂșC-2000ÂșC)
- 6 ÂșC/ minute (2000ÂșC~3000ÂșC)
- Optional: Eurothermo Controller with +/- 0.1ÂșC accuracy at an extra cost
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 Vacuum Chamber

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- The chamber is made of SS304 with double layer water cooling jacket.
- Chamber size: OD Ί730 x IDÏ700 x L 580mm
- One Ί35 mm window is installed on the top of the chamber for the IR sensor.
- One Ί120 mm window is installed on the front door of the chamber for observation
- .Gas inlet and outlet ports are built in with a gas flow meter 20 - 200 ml adjuastable.
- Vacuum level: 10 -2 torr by a mechanical pump and 10-5 torr by a turbo pump
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Graphite Crucible & Refractory Liners

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- High Purity Graphite Crucible: 114 O.D. x 100 ID x 142H ( mm) ( ~1 L)  is included for induction heating.
- Max. melting capability: 4 kg for Iron (tested)
- The multi-layer special design refractory liner is included.
- Note: Graphite crucible is consumable, please click the picture on the left to order a spare
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Vacuum Pump
 
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- One 156 L/m Rotary Vane Vacuum Pump is included to achieve a 10e-2 torr vacuum. Turbopump is available upon request
- Anti-Corrosive Capacitance Diaphragm Gauge (Gas Independent), with a measurement range up to 3.8 x 10E-5 torr, is included with a mechanical pump
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Water Chiller
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- One recirculating water chiller with a 117L/minute flow rate is includedÂ
- Temperature range: 5 - 30°C
- Water Flow Rate: 58 L/min
- Water Tank: 70 Liters made of stainless steel
- Power 220VAC +/- 10%, three-phase, 7.1KW , 50/6- Hz
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Compliance
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- NRTL Certification is available upon request at an extra cost
- An isolated transformer will also be needed for UL certification
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| Power requirement |
- 460VAC +/-10%, three-phase power panel is required
- 100KW total power is requiredă
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 Ar gas purifier (optional)

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- A passive argon gas purifier is optional. which can remove O2, CO2, H2O impurities to < 1 ppm
- Working pressure: < 1.0 MPa
- Gas flow rate: 4M3/h
- Automatic regeneration function is built in.
- Gas inlet and outlet port size: 1/4â
- Dimension; 420*580*1060mmÂ
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 Electrodes feedthrough (optional)

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- This furnace can be modified into molton salt electrolysis furnace with an electrode feedthrough
- Two or three electrodes can be inserted into the heated crucible via the air-tight lifting fixture for noble or rare earth metal refining with a DC power supply
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