Luoyang Anjing Intelligence Equipment are a global leader in high-temperature electric furnaces
1200°C Vacuum Atmosphere Box Furnace
PRODUCT PARAMETERS
Description
1200℃ Vacuum Atmosphere Box Furnace
This box furnace integrates a temperature control system, vacuum furnace chamber, vacuum pump, gas path control system, pressure protection system, gas flow control system, positive and negative pressure display system, and circulating cooling system. It is specifically designed for material sintering, heat treatment, atmosphere protection experiments, and vacuum process research and development. The equipment uses a vacuum-formed high-purity alumina fiber lightweight material lining, featuring low heat storage, rapid heating, and excellent heat preservation performance. The maximum operating temperature can reach 1200℃, and it can operate stably in vacuum, slightly positive pressure, and protective atmosphere environments.
Product Features
- Integrated Vacuum/Atmosphere/Positive/Negative Pressure Multi-Mode System
Integrates temperature control, vacuum furnace, vacuum pump, gas path, pressure protection, gas flow control, positive/negative pressure display, and water circulation pump into one unit. The water circulation tank and furnace body are separate designs. It can accept various gases such as hydrogen, nitrogen, argon, carbon monoxide, and oxygen, and supports switching between vacuum (100Pa-10⁻¹Pa) and micro-positive pressure (≤10kPa) modes.
- Water-Cooling Protection System for Comprehensive Cooling of Key Components
Water cooling covers the furnace opening, furnace door, and furnace top of the furnace inner shell, with 1-inch water cooling pipe interfaces. This effectively reduces the temperature of seals and the furnace body, extending equipment lifespan and ensuring vacuum sealing performance.
- 6-20mm Thick Furnace Steel Plate, Pressure Resistance 0.1MPa
The furnace steel plate is 6-20mm thick, double-sided welded, and can withstand a positive pressure of 0.1MPa. The robust and durable structure ensures safe operation under both positive and negative pressure conditions.
- Pressure Protection System, Automatic Safety Pressure Relief
The system receives signals from an electrical contact pressure gauge or pressure sensor, driving the control module to close the electromagnetic inlet valve and activate the electromagnetic exhaust valve and alarm, releasing pressure from the exhaust port. An audible and visual alarm buzzer sounds. This effectively prevents dangers caused by exhaust port blockage or excessive pressure.
- Three-Temperature Zone Design, Excellent Temperature Uniformity
The system employs a three-temperature zone design, with silicon carbide heating elements installed on both sides of the furnace chamber, forming a double-sided heating field. Temperature control accuracy is ±1℃, and the maximum heating rate is 45℃/min, meeting the sintering process requirements of different materials.
| Category | Parameter |
|---|---|
| Maximum Temperature | 1200℃ |
| Normal Operating Temperature | 900℃ (adjustable) |
| Power Supply | AC 3-phase 380V / 50-60Hz |
| Heating Element | Silicon carbide rods |
| Location of Heating Elements | Left and right sides of the chamber |
| Temperature Measuring Element & Range | Ni-Cr / Ni-Si Type K, range 0-1350℃ |
| Programming Curve Segments | 1 group: 50 segments, 2 groups: 22 segments, 3 groups: 8 segments (adjustable) |
| Heating Rate | Adjustable from 1℃/h to 20℃/min |
| Furnace Door Height | Lower edge 1000mm above floor |
| Vacuum Range | 100Pa to 10⁻¹Pa |
| Micro-positive Pressure | Within 10kPa; negative pressure pumping within 30 minutes, heating not fully open, PID settable, with electronic pressure gauge |
| Temperature Zones | 3-zone design |
| Heating Rate Adjustment | Freely adjustable: max. 20℃/min, min. 1℃/h |
| Furnace Body | CNC machined, manufactured through polishing, grinding, pickling, phosphating, plastic powder spraying, high-temperature baking, etc.; two-tone design with novel and aesthetic appearance; features oxidation resistance, acid and alkali resistance, corrosion resistance, high-temperature resistance, and easy cleaning |
| Furnace Structure | Air-cooled double-layer structure, ensuring a good working environment |
| Door Opening Method | Axial 180° side-opening |
| Water-cooled Parts | Furnace mouth, door, and top of the chamber inner shell; water cooling pipe interface: 1 inch |
| Vacuum Pump | Two-stage direct-drive rotary vane vacuum pump, 60m³/h, furnace port size: 3 inches |
| Vacuum Display | Dial pressure gauge -0.1MPa and digital positive/negative pressure indicator |
| Pressure Resistance | Furnace chamber steel plate 6-20mm thick, double-sided welding, withstands positive pressure up to 0.1MPa |
| Gas Line Valves | Stainless steel valves |
| Pressure Monitoring | One dial pressure gauge with dual positive/negative indication (optional digital vacuum gauge, etc.) |
| Gas Flow Meters | 2 float flow meters |
| Pressure Protection | System designed to prevent hazards from exhaust port closure, blockage, or excessive chamber pressure: signal from electric contact pressure gauge or pressure sensor triggers control module to close solenoid intake valve, activate solenoid exhaust valve and alarm, releasing pressure through exhaust port with audible/visual buzzer alarm, thus protecting normal furnace operation |
| Gas Leak Alarm | Detects toxic/hazardous gas levels in indoor air; when exceeding set value, drive module shuts down furnace and gas supply, opens exhaust and ventilation for a safer working environment (optional, customer selection required) |
| Compatible Atmospheres | Hydrogen, Nitrogen, Argon, Carbon Monoxide, Oxygen, etc. |
| Refractory Material | Lining made of vacuum-formed alumina fiber lightweight board material; easily contacted positions (furnace bottom) use lightweight hollow ball alumina plates, featuring high operating temperature, low heat storage, thermal shock resistance, no cracking, no slagging, and excellent insulation |
| Thermal Insulation Material | Four-layer insulation: alumina fiber wool, alumina fiberboard, and polycrystalline alumina fiberboard; premium materials with excellent energy-saving performance |
| Furnace Shell Temperature | During long-term continuous operation, shell temperature <45℃ |
| Protection | Integrated modular control unit with high accuracy; dual-loop control and dual-loop protection designed, featuring protection against overshoot, overregulation, underregulation, thermocouple break, phase loss, overvoltage, overcurrent, overtemperature, current feedback, soft start, etc. |
| Control | Closed-loop thyristor module trigger control with phase-shift triggering; continuously adjustable output voltage, current or power; features constant voltage, constant current or constant power characteristics; current loop as inner loop, voltage loop as outer loop; under sudden load or load current exceeding limit value, output current is limited within rated range to ensure normal operation of regulator and output; voltage loop also participates in regulation, limiting output current within rated range and maintaining constant output current and voltage with sufficient regulation margin, thereby protecting heating elements from excessive current and voltage surges, achieving safe, reliable control and high precision |
| Display Parameters | Temperature, temperature segment number, segment time, remaining time, output power percentage, voltage, current, etc. |
| Temperature Curve Programming | Intelligent temperature controller featuring standard PID, artificial intelligence regulation APID or MPT, etc.; self-tuning and self-learning functions; excellent control characteristics with no overshoot or undershoot; 30-segment program control capability, allowing arbitrary ramp rates for heating and cooling; programmable/operable commands including jump (loop), run, pause, and stop; program can be modified at any time during operation; adopts artificial intelligence regulation algorithm with curve fitting for smooth and stable curve control |
| Multiple Curve Input | 30-segment (customizable to 50-segment) program control function; configurable as: 1 curve with 30 (50) segments, 2 curves with 14 (28) segments each, 3 curves with 9 (15) segments each, or 5 curves with 5 (9) segments each; multiple curves can be input simultaneously and called up arbitrarily during use |
| Communication Interface | RS485 communication interface with transmission distance up to 1700m; allows computer control of furnace start, pause, stop, heating curve setting, curve reading, parameter setting, etc.; high reliability and user-friendly; computer display shows measured value, setpoint, output value, segment time, segment number, heating curve, power percentage curve; heating curves can be stored on computer, and stored curves can be recalled, setpoints and common parameters can be modified; historical curves and reports with selectable recording intervals (1s-1h) for long-term storage |
| Spare Parts Included | One crucible tongs, one pair of high-temperature gloves |
| Warranty Coverage and Duration | Electric furnace free warranty for one year; heating elements not covered (free replacement within three months if naturally damaged) |
| Notes | 1. To extend furnace service life, recommended heating and cooling rate: 10-20℃/min (excessive heating rate shortens heating element life) 2. Minor cracks may appear in the chamber after prolonged use; this is normal and does not affect performance; can be repaired with alumina coating 3. Do not leak high-temperature solution onto the furnace bottom; use a base plate or alumina powder isolation as preventive measure 4. Place the instrument in a well-ventilated, dry location |
Application Areas
- Advanced Ceramics Vacuum Sintering: Suitable for vacuum or atmosphere sintering of advanced ceramic materials such as alumina, zirconium oxide, silicon nitride, and silicon carbide.
- Metallic Materials Atmosphere Heat Treatment: Suitable for non-oxidizing annealing, solution treatment, and aging heat treatment processes for metallic materials.
- Powder Metallurgy: Suitable for vacuum sintering of metal powders and alloy powders.
- Semiconductor Material Processing: Suitable for high-temperature annealing and diffusion processes for semiconductor materials.
- New Material Development: Suitable for the research and pilot production of new materials such as special ceramics, composite materials, and high-temperature alloys.
Company Profile
A professional enterprise specializing in heat treatment technology services and the R&D, manufacturing, and sales of high-temperature electric furnaces.
The company focuses on developing high-temperature electric furnaces covering a full temperature range of -100℃ to 2600℃. Its products include experimental electric furnaces, vacuum atmosphere furnaces, industrial kilns, and medium-frequency induction heating equipment. Main products include box furnaces, tube furnaces, lifting furnaces, pusher kilns, bogie furnaces, rotary kilns, tunnel kilns, and various specialized medium-frequency furnaces.
The company adheres to technological innovation and has passed ISO9001 and EU CE certifications. It owns 21 registered trademarks, 29 patents, and 27 software copyrights.
Payment Methods
TT
Shipment Methods
The electric furnace is packaged in three layers: first wrapped in foam paper, then wrapped in plastic film, and finally packed in a wooden crate.
Frequently Asked Questions (FAQ)
- What vacuum level can the equipment achieve?
The standard configuration uses a two-stage rotary vane vacuum pump, achieving a system vacuum level of 100Pa to 10⁻¹Pa. Specific vacuum performance depends on the furnace volume, process conditions, and vacuum system configuration.
- What process gases can be introduced?
The equipment supports various gases including nitrogen, argon, hydrogen, carbon monoxide, and oxygen, and is equipped with dual-channel float flowmeters for flow regulation and control.
- Can heating be performed under vacuum?
Yes. The equipment is specifically designed for vacuum environments and supports heating after vacuuming. It can also perform heat treatment processes under a protective atmosphere or slightly positive pressure.
- Does the equipment support remote computer control?
Yes. The equipment is equipped with an RS485 communication interface with a communication distance of up to 1700 meters. Temperature profile settings, parameter modifications, operation monitoring, and historical data storage can be achieved via computer.
- Is the furnace shell temperature high during operation?
The equipment adopts a double-layer air-cooled structure and a four-layer insulation design. Under long-term continuous operation, the temperature of the furnace shell is usually below 45℃, which can effectively improve the operating environment.
