Luoyang Anjing Intelligence Equipment are a global leader in high-temperature electric furnaces
Reliable 1700°C Vacuum Atmosphere Sintering Furnace for Laboratory Research
PRODUCT PARAMETERS
Description
1700℃ VSF Vacuum Atmosphere Sintering Furnace
The vacuum atmosphere sintering furnace is a high-performance box-type electric furnace integrating high-temperature sintering, vacuum treatment, and protective atmosphere sintering. The equipment uses imported 1800℃-grade U-shaped silicon molybdenum rod heating elements, with a maximum operating temperature of 1750℃ and a long-term stable operating temperature of 1700℃. The furnace chamber is made of imported vacuum-formed high-purity alumina fiber material, featuring low heat storage and excellent heat preservation performance, effectively reducing energy consumption and improving temperature uniformity. The entire unit integrates a temperature control system, vacuum system, atmosphere control system, water cooling system, pressure protection system, and RS485 communication interface, enabling vacuum sintering, inert atmosphere sintering, reducing atmosphere sintering, and programmed heating and cooling control, meeting various high-temperature atmosphere sintering needs in laboratories and industrial production.
Product Features
- Imported 1800-type silicon molybdenum rod heating element, ultra-high temperature performance up to 1700℃
Uses imported 1800-type silicon molybdenum rods as heating elements, installed on both sides of the furnace chamber. Maximum operating temperature is 1750℃, with a long-term operating temperature of 1700℃. Type B thermocouple temperature measurement range 0-1820℃, temperature control accuracy ±1℃, furnace temperature uniformity ±1℃ (depending on furnace chamber size).
- Dual-Use Vacuum and Atmosphere Functionality, Multi-Atmosphere Compatibility
Integrates a temperature control system, vacuum furnace chamber, vacuum pump, gas path, pressure protection, gas flow control, positive and negative pressure display, and water circulation pump. It can handle various gases including hydrogen, nitrogen, argon, carbon monoxide, and oxygen. The vacuum level can reach -0.1 MPa. The furnace chamber steel plate is 6-20 mm thick, double-sided welded, and can withstand a positive pressure of 0.1 MPa.
- 2P Refrigeration Unit + Circulating Water Radiator for Efficient Cooling
Equipped with a 2P refrigeration unit, the water-cooled components cover the furnace opening, furnace door, and furnace top within the furnace chamber shell. Utilizing multi-channel pure aluminum water circulation heat sinks, it significantly reduces water temperature overheating, ensuring long-term continuous operation of the equipment.
- Pressure Protection + Gas Leak Alarm: Dual Safety
The pressure protection system receives signals from an electrical contact pressure gauge or pressure sensor, automatically closing the electromagnetic inlet valve, activating the electromagnetic exhaust valve, and triggering an audible and visual alarm. The gas leak alarm automatically shuts off the electric stove and gas supply and activates the exhaust system when it detects excessive levels of toxic or hazardous gases indoors.
| Temperature | 1700℃ |
| Power Supply | AC 380V |
| Maximum Operating Temperature | 1750℃ |
| Continuous Operating Temperature | 1700℃ |
| Control Range | 50 ~ 1700℃ |
| Temperature Sensor | Type B thermocouple, measuring range 0~1820℃ |
| Heating Element Installation Position | Both sides (imported 1800-type MoSi₂ rods) |
| Temperature Control Accuracy | ±1℃ (integrated circuit control, no overshoot) |
| Temperature Uniformity | ±1℃ (multi-point control available for larger chambers to improve uniformity) |
| Heating Rate | Max. 40℃/min, Min. 1℃/h, freely adjustable |
| Heating Elements | High-temperature 1800-type U-shaped MoSi₂ rods |
| Heating Element Installation / Replacement | Mechanically lifting mechanism on the vacuum-sealed top cover; the entire cover can be lifted and rotated, saving labor and time |
| Furnace Body Construction | CNC machined; processes include polishing, grinding, pickling, phosphating, powder coating, and high-temperature baking; dual-color finish; features oxidation resistance, acid/alkali/corrosion/heat resistance, and easy cleaning |
| Furnace Body Structure | Air-cooled double-layer structure |
| Door Opening Method | Axial 180° side-opening; door can rotate 360° to prevent arm burns from hot inner door surface during sample retrieval |
| Water Cooling | Equipped with 2P chiller × 1; water cooling at furnace mouth, door, and top of the inner shell; multi-channel pure aluminum water circulation radiator to reduce water temperature |
| Vacuum Pump / Vacuum Level | Two-stage rotary vane vacuum pump; pointer pressure gauge -0.1MPa |
| Pressure Resistance | Furnace shell steel plate 6~20mm thick, double-welded, withstands positive pressure up to 0.1MPa |
| Gas Valves | Imported stainless steel valves |
| Pressure Monitoring | Dual-indicator pointer pressure gauge for positive and negative pressure × 1 (digital vacuum gauge optional) |
| Gas Flow Meters | 2 float flow meters (digital mass flow meters optional for higher accuracy) |
| Pressure Protection | Signals from electric contact pressure gauge or pressure sensor drive the control module to close the solenoid inlet valve, open the solenoid exhaust valve and alarm (audible and visual), protecting the furnace from overpressure hazards |
| Gas Leak Alarm | Detects toxic/hazardous gas concentration in the ambient air exceeding set limits; drives module to shut down the furnace, cut off gas supply, and open exhaust vents (optional, customer configurable) |
| Process Atmosphere | Hydrogen, nitrogen, argon, carbon monoxide, oxygen, etc. |
| Refractory Material | Vacuum-formed high-purity alumina fiber lightweight board; high-wear area (furnace bottom) uses high-purity lightweight hollow-sphere alumina plates; high-temperature resistance, low heat storage, thermal shock resistance, no cracking, no spalling, excellent insulation (saves over 80% energy compared to traditional furnaces) |
| Insulation Material | Four-layer insulation: alumina fiber cotton + alumina fiber board + alumina polycrystalline fiber board; saves over 80% energy compared to traditional furnaces |
| Furnace Shell Temperature | < 45℃ during prolonged continuous operation |
| Protection Functions | Integrated modular control with dual-loop control and dual-loop protection; includes protection against overshoot, undershoot, deviation, thermocouple break, phase loss, overvoltage, overcurrent, overtemperature, current feedback, and soft-start |
| Control Method | Closed-loop SCR (thyristor) module control with phase-shift or zero-crossing triggering; continuously adjustable output voltage, current, or power; features constant voltage, constant current, or constant power characteristics. Inner current loop + outer voltage loop ensures output current is limited within rated range under sudden load changes or overcurrent conditions, protecting heating elements from excessive current/voltage surges for safe and reliable control |
| Displayed Parameters | Temperature, segment number, segment time, remaining time, output power percentage, voltage, current, etc. |
| Push-Buttons | Service life > 100,000 cycles, with LED indicators |
| Temperature Profile Programming | Intelligent controller supports standard PID, AI artificial intelligence PID (APID), or MPT regulation with self-tuning and self-learning functions; no overshoot or undershoot. Features 30-segment programmable control for arbitrary ramp/soak profiles; supports jump (loop), run, pause, and stop commands with on-the-fly program modification; curve-fitting algorithm ensures smooth and continuous temperature control |
| Multiple Curve Input | 30 segments (customizable to 50): 1 curve of 30(50) segments / 2 curves of 14(28) segments each / 3 curves of 9(15) segments each / 5 curves of 5(9) segments each; multiple curves can be stored simultaneously and called arbitrarily |
| Communication Interface | RS485, communication distance up to 1700m; allows remote computer control for start/pause/stop/curve setting/reading/parameter modification; PC display includes measured value, setpoint, output value, segment time, segment number, ramp curve, and power percentage curve; stored ramp curves can be recalled and modified; historical data/report logging interval adjustable (1s~1h) with long-term storage |
Application Areas
- Ultra-high Temperature Ceramic Vacuum Sintering: Suitable for vacuum sintering of ultra-high temperature ceramic materials such as silicon carbide, silicon nitride, aluminum nitride, and zirconium oxide.
- Hard Alloy Sintering: Suitable for high-temperature vacuum sintering of tungsten carbide-based hard alloys.
- Oxidation-Free Heat Treatment of Metallic Materials: Suitable for annealing, solution treatment, and aging processes of refractory metals and high-temperature alloys under vacuum or protective atmospheres, effectively preventing metal oxidation and decarburization.
- Semiconductor Material Processing: Suitable for high-temperature annealing and diffusion processes of 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 protective gases can this equipment use?
The equipment supports various protective atmospheres, including nitrogen (N₂), argon (Ar), hydrogen (H₂), oxygen (O₂), and carbon monoxide (CO). Customized gas path systems can also be provided to meet specific process requirements.
- What is the maximum operating temperature?
The maximum operating temperature is 1750℃. It is recommended that the long-term operating temperature not exceed 1700℃ to ensure stable operation and extend the lifespan of the heating elements.
- What vacuum level can be achieved?
The standard configuration vacuum level is -0.1MPa. For higher vacuum requirements, mechanical pumps, Roots pumps, or molecular pump systems can be selected to achieve higher vacuum levels.
- Does it support automatic programmed sintering?
Yes. The equipment is equipped with a 30-segment (50-segment customizable) programmed temperature control function, enabling complex sintering processes such as automatic heating, holding, cooling, and circulation.
- Can it be customized to meet customer needs?
Yes. We support customized furnace dimensions, maximum temperature, vacuum system, gas path configuration, mass flow meter, PLC touch screen control, automation control, and other special functions to meet the needs of different experimental and production processes.
