Luoyang Anjing Intelligence Equipment are a global leader in high-temperature electric furnaces
Vacuum Atmosphere Hot Press Furnace for Advanced Material Research
PRODUCT PARAMETERS
Description
Vacuum Atmosphere Hot Press Furnace
A vacuum atmosphere hot press furnace is a high-end material preparation equipment integrating high-temperature sintering, vacuum environment control, atmosphere protection, and precision pressure forming. The equipment can operate at temperatures up to 1200℃ and is widely used in powder metallurgy, advanced ceramics, composite materials, functional materials, and scientific research. It can achieve material densification sintering and hot pressing in vacuum or various protective atmospheres.
The equipment adopts a vacuum-formed high-purity alumina lightweight polycarbonate lining structure, combined with a multi-layer insulation and water-cooling system design, ensuring stable operation and excellent temperature uniformity under high-temperature and high-pressure conditions.
Product Features
- Simultaneous High Temperature and High Pressure Application
This equipment can apply pressure of 0.5-150 tons (customizable according to customer requirements) to materials while heating, achieving simultaneous high temperature and high pressure. It adopts an electric precision hydraulic press with digital display and manual pressure adjustment in N (Newtons). Equipped with imported solenoid valves, it maintains excellent pressure. Pressure and temperature changes are recorded in real time via a paper printer, enabling traceable process data.
- Dual-Use Vacuum and Atmosphere Functionality
The vacuum level can reach -0.1 MPa (1 Pa, -1 Pa, 0.01 Pa, etc. are available upon request). It can handle various gases such as hydrogen, nitrogen, argon, carbon monoxide, and oxygen. Free conversion between vacuum and atmosphere allows for meeting the stringent atmospheric requirements of materials such as hard alloys, functional ceramics, and powder metallurgy.
- Three-Layer Shell + Air-Cooled Double-Layer Structure
The electric furnace adopts a three-layer shell design, with a double-layer air-cooled structure. Effective air-cooling guide baffles ensure overall cold air circulation within the furnace shell. The water-cooled components cover the furnace top, furnace opening, furnace door, and outer shell, equipped with a high-temperature circulating water pump, circulating water tank, and water radiator, featuring a water-saving design. The furnace shell temperature remains below 45℃ during continuous operation without shutting down the furnace.
- Tapered Step Soft Seal
The furnace opening features a 3-4 layer tapered step soft seal structure, with elastic high-temperature sealing strips arranged on the steps to effectively absorb the thermal expansion of the refractory material between the furnace opening and the charging platform. The upper and lower pressure head molds are made of high-temperature alloy steel with water-cooling protection, ensuring a long service life under high temperature and pressure.
- Automatic Safety Pressure Relief System
Signals from an electrical contact pressure gauge or pressure sensor drive the control module to close the electromagnetic inlet valve and activate the electromagnetic exhaust valve and alarm. This effectively prevents blockage of the exhaust port or excessive pressure, ensuring safe operation of the equipment.
| Temperature | 1200℃ |
| Maximum Operating Temperature | 1250℃ |
| Continuous Operating Temperature | 1200℃ |
| Control Range | 80 ~ 1200℃ |
| Temperature Sensor | Type K thermocouple, measuring range 0~1320℃ |
| Heating Element Installation Position | Surrounding the furnace chamber |
| 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 alloy resistance wire (imported, Mo-containing, wire surface temperature up to 1500℃) or silicon carbide (SiC) rods |
| 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 | Three-layer shell, air-cooled double-layer structure with effective air-guide baffles for full cold-air circulation; cools the heating element terminals to prevent high-temperature oxidation |
| Pressure | 0.5~150 tons (customizable) |
| Pressure Adjustment | Digital display manual adjustment |
| Press | Electric precision hydraulic press |
| Pressure Display | Digital display, unit (N) |
| Pressure Holding | Imported solenoid valve, excellent pressure-holding performance |
| Pressure & Temperature Recording | Paper printer |
| Furnace Mouth Sealing | 3~4-layer tapered step soft seal with elastic high-temperature sealing strips on the steps, effectively absorbing expansion between furnace mouth and loading platform refractories |
| Upper & Lower Press Head Dies | High-temperature alloy steel (with water cooling) |
| Loading Platform Refractory | Vacuum-formed high-purity alumina lightweight material combined with high-purity alumina hollow sphere plates, ensuring both insulation and load-bearing performance |
| Refractory Material | Vacuum-formed high-purity alumina lightweight material; high-wear/load-bearing areas (furnace mouth and bottom) use 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 | Three-layer insulation: aluminum silicate fiber board + 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 |
| Water Cooling | Equipped with high-temperature circulating water pump, circulating water tank, and water radiator; cooling locations: furnace top, furnace mouth, furnace door, and shell |
| Atmosphere | Hydrogen, nitrogen, argon, carbon monoxide, oxygen, etc. |
| Vacuum Degree | -0.1MPa (customizable to 1Pa, -1Pa, -0.01Pa, etc.) |
| 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, preventing overpressure hazards caused by closed or blocked exhaust ports |
| Displayed Parameters | Real-time temperature, segment number, segment time, remaining time, output power percentage, voltage, current, etc. |
| Push-Buttons | Imported push-buttons with LED indicators, service life > 100,000 cycles |
| 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 1200m; 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 |
| Standard Accessories | Spare heating elements × 2, electrode holders × 2 sets, crucible tongs × 1 pair, heat-resistant gloves × 1 pair |
| Warranty | 1 year for the furnace (heating elements excluded; naturally damaged within 3 months replaced free of charge) |
Application Areas
- Hot-pressing Sintering of Hard Alloys: Suitable for high-temperature, high-pressure densification sintering of refractory metal materials such as tungsten carbide-based hard alloys and titanium alloys.
- Hot-pressing Sintering of Functional Ceramics: Suitable for hot-pressing sintering of functional ceramics such as piezoelectric ceramics, transparent ceramics, and magnetic ceramics.
- Densification of Powder Metallurgy Products: Suitable for hot-pressing and sintering of metal powders, alloy powders, and composite powders.
- Composite Material Preparation: Suitable for densification sintering of metal matrix composites and ceramic matrix composites.
- Superhard Material Preparation: Suitable for high-temperature, high-pressure sintering of superhard materials such as cubic boron nitride and polycrystalline diamond.
- New Material Development: Suitable for the research and development and preparation of new materials such as special ceramics, high-temperature alloys, and amorphous materials.
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 gases can be introduced into the vacuum atmosphere autoclave?
The equipment can accept various process gases such as hydrogen, nitrogen, argon, carbon monoxide, and oxygen to meet the hot pressing sintering requirements of different materials under protective or reducing atmospheres.
- What are the maximum and long-term operating temperatures of the equipment?
The maximum operating temperature is 1200℃, and the long-term stable operating temperature is approximately 1200℃ (the specific temperature depends on process conditions and atmosphere).
- Can the pressure system be customized?
Yes. The standard pressure range is 0.5–150 tons. Non-standard customization is available according to customer needs, and digital display control and automatic pressure holding functions are supported.
- Does it support vacuum operation?
Yes. The equipment can achieve a vacuum level of -0.1MPa, and higher vacuum levels (such as 1Pa or higher) can be customized according to requirements.
- How is equipment safety guaranteed?
The equipment adopts a dual-circuit electrical protection system and is equipped with an independent furnace pressure protection module. When the pressure is abnormal or the pipeline is blocked, the system will automatically cut off the gas intake and activate the pressure relief and alarm mechanisms to ensure the safe operation of the equipment.
