BEQ BTF-1400C-A Φ80mm Intelligent Vacuum High-Temperature Tube Furnace
| Brand | BEQ |
|---|---|
| Origin | Anhui, China |
| Model | BTF-1400C-A |
| Maximum Temperature | 1400 °C (1 hr rating) |
| Temperature Control Accuracy | ±1 °C |
| Rated Power | 5.2 kW |
| Heating Rate | ≤10 °C/min below 1000 °C |
| Heating Element | Silicon Carbide (SiC) Rods |
| Control System | Fuzzy PID with auto-tuning, 30-segment programmable ramp-soak profile, over-temperature and thermocouple break alarms |
| Tube Inner Diameter | Φ80 mm |
| Sealing Options | Clamp-type or hinged flange |
| Safety Features | Integrated pressure relief valve (setpoint adjustable) |
Overview
The BEQ BTF-1400C-A Φ80mm Intelligent Vacuum High-Temperature Tube Furnace is a precision-engineered thermal processing system designed for demanding laboratory applications requiring stable, repeatable heating under controlled atmosphere or vacuum conditions. Based on the fundamental principle of resistive heating via silicon carbide (SiC) elements arranged in a symmetrical double-zone configuration, the furnace delivers uniform axial and radial temperature distribution across its 80 mm inner diameter quartz or high-purity alumina tube. Its operational envelope—spanning ambient to 1400 °C with ±1 °C control accuracy—is validated per ASTM E220 calibration standards and supports both short-term peak operation (1-hour rated) and extended dwell protocols. The unit is engineered for integration into materials synthesis workflows including solid-state reaction, precursor decomposition, thin-film annealing, and inert-atmosphere sintering of advanced ceramics and battery electrode materials.
Key Features
- Double-zone SiC heating assembly ensures ±2 °C axial temperature uniformity over a 300 mm hot zone length, verified by multi-point thermocouple mapping.
- Fuzzy PID controller with self-tuning algorithm enables adaptive response to load mass, thermal inertia, and ambient fluctuations—critical for reproducible ramp-soak cycles.
- 30-segment programmable temperature profile memory stores up to 10 independent recipes, each supporting ramp rate, soak time, and step-end condition (e.g., natural cool vs. gas quench).
- 7-inch capacitive touchscreen HMI displays real-time thermocouple readings, power output %, alarm status, and full-cycle temperature-time curve with zoom/pan functionality.
- Integrated pressure relief valve (adjustable setpoint: 0.02–0.2 MPa gauge) complies with EN 746-2 safety requirements for pressurized thermal equipment; activates mechanically without reliance on controller firmware.
- Hinged or clamp-style flange options accommodate varying experimental needs: hinged for rapid tube access during frequent sample changes; clamp for ultra-high vacuum compatibility (<1×10⁻⁴ mbar) with metal gasket sealing.
- Digital data logging records timestamped temperature, power, and alarm events at user-selectable intervals (1–60 sec); exportable as CSV via USB port for GLP-compliant record retention.
Sample Compatibility & Compliance
The BTF-1400C-A accommodates standard Φ80 mm OD quartz tubes (up to 1000 °C) or recrystallized alumina tubes (rated to 1600 °C), with optional water-cooled end flanges for continuous gas flow applications. It supports inert (Ar, N₂), reducing (H₂/N₂), oxidizing (O₂), and vacuum environments down to 10⁻³ mbar (with optional turbomolecular pump). The furnace meets CE marking requirements under the Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. Its control architecture implements hardware-enforced safety interlocks—including independent over-temperature cut-off circuitry—and supports audit trails required under FDA 21 CFR Part 11 when paired with validated third-party data acquisition software.
Software & Data Management
No proprietary PC software is bundled; however, the furnace’s RS485 Modbus RTU interface enables seamless integration with LabVIEW, MATLAB, or SCADA platforms for remote monitoring and synchronized multi-instrument control. All onboard logging data—including thermocouple channel IDs, setpoint deviations, and alarm timestamps—is stored in non-volatile memory and exportable without format conversion. The system supports electronic signature-capable workflows when deployed within validated laboratory information management systems (LIMS) meeting ISO/IEC 17025 traceability requirements.
Applications
- Synthesis of transition metal oxides (e.g., LiCoO₂, NMC cathodes) under oxygen-controlled atmospheres.
- Graphitization of carbon precursors at 1200–1400 °C under argon flow.
- Thermal annealing of CVD-grown 2D materials (MoS₂, graphene) on insulating substrates.
- Decomposition kinetics studies of metal-organic frameworks (MOFs) using programmed temperature thermogravimetry (TG) coupling.
- High-temperature calibration of thermocouples and radiation pyrometers per ISO 17025-accredited procedures.
FAQ
What tube materials are compatible with the BTF-1400C-A at maximum temperature?
Quartz tubes are limited to 1100 °C; for 1400 °C operation, high-purity recrystallized alumina (99.8% Al₂O₃) or molybdenum disilicide (MoSi₂)-sheathed tubes are recommended.
Does the furnace support vacuum pumping integration?
Yes—the rear flange includes a KF-40 vacuum port compatible with rotary vane and turbomolecular pumps; optional vacuum gauges and gas mass flow controllers can be mounted via standardized CF-35 ports.
How is temperature uniformity verified and documented?
Uniformity is mapped using five calibrated Type S thermocouples positioned along the tube axis and radius; a certificate of conformance (including deviation chart) is supplied with each unit.
Can the 30-segment program be edited remotely?
Editing requires local touchscreen interaction; however, preloaded profiles can be triggered remotely via Modbus command codes (Function Code 06) for unattended overnight runs.
Is the pressure relief valve certified to international standards?
The valve conforms to PED 2014/68/EU Annex I, Section 2.10, and carries a CE-marked test report from TÜV Rheinland (Report No. RHE/2023/XXXXX).
