Vacuum Induction Melting/Heating Furnace
Vacuum Induction Melting/Heating Furnace
A laboratory-scale vacuum induction melting/heating furnace designed for high-temperature processing of materials under vacuum and controlled inert atmosphere. The system includes induction heating, vacuum chamber and pumping system, inert-gas arrangement, temperature measurement and control, water cooling, and an integrated control panel.
- Laboratory-Scale Vacuum Induction Melting/Heating – Designed for high-temperature melting and heating under vacuum and controlled inert atmosphere.
- Approximately 200 mL Working Capacity – Crucible working capacity of approximately 200 mL.
- Approximately 20 kW Induction Heating Power – Rated induction heating power of approximately 20 kW.
- Variable Medium-Frequency Induction Heating – Variable frequency range of 5–20 kHz, with operating frequency determined according to the job.
- High-Temperature Operation – Furnace system capable of achieving ≥2400 °C, subject to material, crucible and atmosphere.
- Vacuum Processing – Vacuum system capable of achieving chamber pressure of ≤5 × 10⁻³ mbar or better, under suitable operating conditions.
- Controlled Inert Atmosphere – Provision for evacuation and purging with Argon and/or Nitrogen; hydrogen purging is also available.
- Water-Cooled Induction Coil – Water-cooled copper induction coil designed for the specified crucible and high-temperature operation.
- Automatic Frequency Matching – Automatic resonance/frequency matching or equivalent arrangement for stable induction heating.
- Closed-Loop Temperature Control – PID or equivalent temperature control using pyrometer feedback.
- Integrated Cooling System – Closed-loop water cooling for the induction coil, chamber and other water-cooled components.
- Safety Interlocks & Protection – Protection and interlocks covering induction power, cooling, vacuum and chamber operation.
The Vacuum Induction Melting/Heating Furnace is designed for:
- High-temperature melting
- High-temperature heating
- Processing under vacuum
- Processing under controlled inert atmosphere
Application Environment
The system provides provisions for evacuation and purging with Argon and/or Nitrogen, with hydrogen purging also available.
Technical Specifications
| Parameter | Specification |
|---|---|
| Equipment | Laboratory-scale vacuum induction melting/heating furnace |
| Crucible Capacity | Approximately 200 mL working capacity |
| Induction Heating Power | Approximately 20 kW |
| Induction Frequency | Variable medium-frequency, 5–20 kHz |
| Power Supply | Three-phase, 415 V, 50 Hz, or compatible standard industrial supply |
| Power Regulation | Variable/controlled induction power |
| Frequency Matching | Automatic resonance/frequency matching or equivalent |
| Induction Coil | Water-cooled copper induction coil |
| Crucible | High-density/isostatically pressed graphite crucible |
| Crucible Temperature Capability | Up to 2800 °C |
| Thermal Insulation | High-temperature graphite-based CFC Fiber Board |
| Insulation Temperature Capability | Approximately 2400 °C |
| Maximum Furnace Temperature | ≥2400 °C, subject to material, crucible and atmosphere |
| Vacuum Chamber | Double-wall, water-cooled chamber |
| Vacuum Level | ≤5 × 10⁻³ mbar or better |
| Vacuum Pump | Suitable rotary/mechanical/DP/Turbo/Roots system |
| Vacuum Measurement | Suitable vacuum measurement system |
| Inert Gas Facility | Argon and/or Nitrogen; hydrogen purging available |
| Temperature Measurement | Non-contact dual-colour/ratio pyrometer |
| Pyrometer Range | At least 600–2500 °C |
| Temperature Control | PID or equivalent closed-loop control |
| Viewing Arrangement | High-temperature viewing/observation window or equivalent |
| Water Cooling | Closed-loop water-cooling system |
| Water Chiller | Suitable-capacity chiller recommended by manufacturer |
| Cooling Protection | Automatic coolant flow/pressure and temperature protection |
| Electrical Protection | Overload, over-current, over-temperature, short-circuit/surge and other relevant protection |
| System Interlocks | Safety interlocks for induction power, cooling, vacuum and chamber |
| Control Panel | Integrated control panel |
| Display | Digital indication of temperature, induction power and vacuum |
| Data Monitoring | Monitoring and/or recording of temperature and major process parameters |
| Chamber Dimensions | Adequate for specified crucible, insulation and coil assembly |
Scope of Supply
The complete system includes:
- Induction power supply
- Induction coil
- Crucibles
- High-temperature insulation
- Water-cooled vacuum chamber
- Vacuum pumping system
- Inert-gas arrangement
- Temperature measurement and control
- Water-cooling/chiller system
- Control panel
- Required accessories
- Initial spares
Accessories & Initial Spares
The system includes the required water lines, electrical cables, vacuum lines, valves, fittings, sensors and accessories required for safe operation.
The initial spares/consumables include a minimum of five graphite crucibles and a suitable initial quantity of high-temperature insulation/essential consumables.
Documentation
The supplied documentation includes:
- Operation manual
- Electrical drawings
- Vacuum schematic
- Maintenance manual
- Recommended spare-parts list
Performance Demonstration
Successful demonstration of the specified:
- Temperature
- Vacuum
- Stable induction heating operation
is required after installation.
Training
On-site training is provided for designated technical personnel covering:
- Operation
- Safety
- Routine maintenance
- Basic troubleshooting
Warranty
Minimum 12 months from successful installation and commissioning.
After-Sales Support
Service support and essential spare parts are available in India.
