RTP-HFU-3000 High Vacuum Ultrafast Heating Furnace with Flash Sintering up to 3000°C
The RTP-HFU-3000 is engineered for rapid thermal processing tasks requiring ultrafast heating within a high-vacuum environment. It is particularly suited for sintering carbon-based materials such as carbon sheets or paper, positioned between two graphite heater sheets inside a stainless steel vacuum chamber. This setup enables precise and rapid temperature elevation essential for flash sintering applications.
The furnace achieves temperatures up to 3000°C with heating rates exceeding 200°C per second, controlled via a digital infrared pyrometer with high accuracy and reproducibility. The system includes PC software for automated temperature programming and supports pulse modulation of the DC power supply for tailored heating profiles.
Key Features
- Stainless steel water-cooled high-vacuum chamber with graphite felt thermal insulation and quartz observation window.
- Two graphite sheet heaters mounted on water-cooled copper feedthroughs for uniform sample heating.
- Maximum temperature of 3000°C with heating rates up to 200°C/s for ultrafast sintering.
- Digital infrared pyrometer (1000–3000°C range) with ±(0.5% F.S. + 2°C) accuracy and ±0.3% reproducibility.
- DC power supply delivering up to 24 V and 250 A with pulse frequencies adjustable from 25 to 500 Hz.
- Vacuum capability to better than 1×10⁻⁶ torr with optional turbopump and integrated vacuum gauge.
- Included PC software for 30-segment programmable temperature control with PID regulation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Input Power | 208–240 VAC, single phase, 50–60 Hz, 6 kVA |
| Output Power | DC <24 V, <250 A, pulse frequency 25–500 Hz |
| Heating Elements | Two graphite sheets; graphite felt and paper optional |
| Maximum Temperature | Up to 3000°C |
| Maximum Heating Rate | Up to 200°C/s |
| Temperature Control | Digital IR pyrometer (1000–3000°C), manual and PID auto modes, 30-segment programmable |
| Vacuum Chamber | SS304 water-cooled, quartz window Ø138 mm, KF40 vacuum port, gas inlet/outlet with valves |
| Vacuum Level | Ultimate vacuum >1×10⁻⁶ torr (with optional turbopump) |
| Vacuum Gauge | Digital vacuum gauge included |
| Optional Accessories | Mechanical vacuum pump (240 L/min), turbopump station (260 L/s), recirculating water chiller for cooling |
Typical Applications
This furnace is ideal for rapid thermal processing tasks such as flash sintering of carbon sheets, paper, and other conductive materials under high vacuum. It supports research and development in advanced materials synthesis, solid electrolyte pellet fabrication, and ultrafast thermal treatments requiring precise temperature control and rapid heating rates.
Configuration & Operating Notes
The system includes a stainless steel vacuum chamber with water cooling and graphite felt insulation. Graphite sheets serve as heaters, with optional graphite felt or paper heating elements available on request. Temperature is monitored via an infrared pyrometer through a quartz window. The DC power supply supports pulse modulation to optimize heating profiles. Optional vacuum pumps and water chillers enhance vacuum quality and thermal management. Proper handling of high temperatures and vacuum conditions is essential for safe operation.
