GRF-3000 High-Temperature Graphitization and Sintering Furnace with Ø240×340 mm Heating Chamber
The GRF-3000 furnace is engineered for demanding laboratory applications involving graphitization, sintering, and high-temperature heat treatment up to 3000°C. It supports processes that require a controlled atmosphere, operating effectively under high vacuum conditions or with protective argon gas to maintain sample purity and prevent oxidation. This furnace is ideal for materials research and development where precise thermal profiles and ultra-high temperatures are essential.
The heating chamber measures 240 mm in diameter and 340 mm in length, providing a working volume of approximately 15 liters. The furnace employs an induction heating system powered by an IGBT power supply capable of delivering up to 80 kW, with typical working power not exceeding 60 kW. Temperature control is managed by a Mitsubishi PLC with a touchscreen interface, offering PID control accuracy within ±1°C and temperature uniformity within ±10°C under protective gas flow conditions.
Wichtigste Merkmale
- Maximum operating temperature of 3000°C with continuous operation at 2900°C.
- High vacuum capability reaching ≤60 Pa during operation.
- Heating zone dimensions: Ø240 × 340 mm; constant temperature zone: Ø200 × 300 mm.
- Double-layer water-cooled stainless steel shell (SUS321) with flexible carbon felt and fiber-reinforced corundum-mullite insulation.
- Equipped with safety features including explosion-proof port, vacuum breaker valve, and safety valve.
- Includes a high-purity, high-density graphite crucible serving as the heater element.
- Integrated water chiller with 5–30°C temperature range and 133 L/min flow rate for cooling.
- Gas purification unit and 2XZ-15 rotary vane vacuum pump with digital vacuum gauge included.
Technische Daten
| Parameter | Spezifikation |
|---|---|
| Höchsttemperatur | 3000°C |
| Continuous Temperature | 2900°C |
| Vacuum Level (Hot State) | ≤60 Pa |
| Temperaturgleichmäßigkeit | ±10°C (with protective gas flow ≤10 L/min) |
| Genauigkeit der Temperaturregelung | ±1°C (PID control) |
| Heating Chamber Size | Ø240 × 340 mm (approx. 15 L capacity) |
| Konstanttemperaturzone | Ø200 × 300 mm |
| Induction Heating Power Supply | IGBT, max 80 kW (working ≤60 kW) |
| Stromversorgung | 480 VAC ±10%, three-phase, 50/60 Hz |
| Induction Coil Dimensions | 20 × 25 × 3 cm copper |
| Furnace Shell Material | Double-layer water-cooled SUS321 stainless steel |
| Kühlsystem | Recirculating water chiller, 5–30°C, 133 L/min flow |
| Vakuumpumpe | 2XZ-15 rotary vane pump with digital gauge |
| Control Interface | Touchscreen panel with Mitsubishi PLC |
Typische Anwendungsbereiche
The GRF-3000 is suited for high-temperature graphitization of carbon materials, sintering of ceramics and refractory metals, and vacuum heat treatments requiring precise atmosphere control. It is commonly used in materials science research, advanced ceramics development, and semiconductor processing.
Hinweise zur Konfiguration und zum Betrieb
The furnace requires protective argon gas flow for safe operation and to maintain temperature uniformity. Included are a water chiller and gas purification unit to support stable operation. The mechanical lifting cover facilitates sample loading. Optional accessories may include additional vacuum pumps or gas supply systems. Users should ensure proper electrical infrastructure with a 100 kW power panel and three-phase 480 VAC supply. Safety features such as explosion-proof ports and vacuum breaker valves are integrated to enhance operational safety.
