BEQ BTF-1200C-HP High-Temperature & High-Pressure Vacuum Tube Furnace
| Brand | BEQ |
|---|---|
| Origin | Anhui, China |
| Model | BTF-1200C-HP |
| Max Temperature | 1200 °C |
| Temperature Uniformity | ±1 °C |
| Max Power | 3 kW |
| Heating Rate (to max temp) | 15 °C/min |
| Heating Element | Resistance Wire |
| Control System | Fuzzy PID with Auto-Tuning + 30-Stage Programmable Logic Controller |
| Pressure Rating | 4 MPa at 800 °C |
| Tube Material | Nickel-Based Alloy (rated to 1100 °C) |
| Sealing | CF Flange with Oxygen-Free Copper Gasket |
| Safety Features | Integrated Pressure Transducer + Proportional High-Pressure Solenoid Valve with Real-Time Overpressure Relief |
Overview
The BEQ BTF-1200C-HP is a precision-engineered high-temperature and high-pressure vacuum tube furnace designed for controlled thermal processing under reactive, inert, or reducing atmospheres—up to 4 MPa pressure and 1200 °C. Unlike standard muffle or box-type furnaces, this system employs a horizontal cylindrical configuration with a sealed, refractory-lined nickel-based alloy tube, enabling simultaneous control of temperature, pressure, and gas composition. Its operational principle relies on Joule heating via high-stability resistance wire elements, coupled with a dual-loop thermal regulation architecture that integrates fuzzy logic PID algorithms with real-time auto-tuning. This ensures exceptional thermal stability (±1 °C), minimal thermal gradient across the hot zone (≤±5 °C over 200 mm), and reproducible ramp/soak profiles critical for materials synthesis, sintering, annealing, and catalytic testing.
Key Features
- Robust nickel-based alloy tube (e.g., Inconel 600 or equivalent) rated for continuous operation up to 1100 °C and short-term exposure to 1200 °C; optimized for oxidation resistance in air and compatibility with H₂, NH₃, CO, and Ar atmospheres.
- CF-flanged end caps with oxygen-free copper gaskets provide ultra-high vacuum integrity (<1×10⁻⁵ mbar base pressure) and leak-tight sealing at elevated pressures (tested to 4 MPa at 800 °C per ASTM E2877).
- Integrated pressure management system comprising a calibrated piezoresistive transducer (0–6 MPa range, ±0.25% FS accuracy) and a fail-safe proportional solenoid valve, enabling closed-loop pressure regulation with automatic overpressure venting.
- 30-segment programmable controller supports complex thermal cycles—including multi-ramp, dwell, and cooling profiles—with non-volatile memory retention and USB data logging capability.
- Double-layer insulation structure (ceramic fiber + reflective aluminum foil) minimizes radial heat loss and surface temperature rise (<60 °C at ambient), meeting IEC 61000-6-3 EMC emission limits.
Sample Compatibility & Compliance
The BTF-1200C-HP accommodates cylindrical samples up to Ø60 mm × 300 mm (standard tube ID: 60 mm), supporting crucibles, quartz boats, ceramic setters, and custom-fabricated sample holders. It complies with key international safety and performance standards including IEC 61010-1 (Electrical Safety for Laboratory Equipment), ISO 17025:2017 (for laboratories performing calibration and testing), and EN 60529 (IP20 enclosure rating). For regulated environments, the control firmware supports audit-trail-enabled operation when paired with optional external data acquisition systems compliant with FDA 21 CFR Part 11 requirements.
Software & Data Management
While the embedded controller operates independently, the furnace supports RS485 Modbus RTU communication for integration into centralized lab automation platforms (e.g., LabVIEW, MATLAB, or SCADA systems). Optional PC software provides real-time graphing of temperature and pressure curves, event-triggered data capture, and CSV export for post-processing. All parameter changes, alarm events, and cycle completions are timestamped and stored locally for ≥30 days—facilitating GLP/GMP documentation workflows and internal quality audits.
Applications
- Synthesis and annealing of advanced ceramics, solid-state electrolytes, and transition metal oxides under controlled pO₂ and pCO₂.
- High-pressure hydrogenation and nitridation of catalysts and battery electrode precursors.
- Thermal gravimetric analysis (TGA) coupling via integrated mass flow controllers and quadrupole residual gas analyzers (RGA).
- Accelerated aging studies of hermetic seals, MEMS packaging, and aerospace-grade alloys.
- Calibration of thermocouples (Type S, R, B) and pressure transducers under traceable NIST-traceable conditions.
FAQ
What is the maximum allowable operating pressure at 1000°C?
The rated pressure limit is 4 MPa at ≤800°C. At 1000°C, the recommended maximum pressure is reduced to 2.5 MPa to ensure long-term mechanical integrity of the nickel alloy tube and sealing interface.
Can the furnace be operated under dynamic gas flow conditions?
Yes—two standardized Swagelok ports (¼″ VCR) are provided for inlet and outlet gas lines, supporting continuous purge, flow-through synthesis, and pressure-controlled gas exchange protocols.
Is third-party calibration certification available?
BEQ provides factory calibration reports for temperature (per ASTM E220) and pressure (per ISO 9001:2015 procedures); NIST-traceable calibration certificates are available upon request with additional lead time.
Does the system meet vacuum compatibility requirements for thin-film deposition prep?
With optional turbomolecular pumping and cold trap integration, the chamber achieves base pressures <5×10⁻⁶ mbar—suitable for pre-deposition annealing of sputtering targets and ALD precursors.
How is thermal uniformity validated across the hot zone?
Uniformity is verified using a 5-point thermocouple mapping procedure per ISO/IEC 17025 Annex A.3, with results documented in the delivery acceptance test report (ATR).
