Characteristics of the lifting bell jar furnace

As an efficient and flexible heat treatment equipment, the lifting bell jar furnace combines vertical lifting structure and precision process control, showing significant advantages in material processing, industrial production, and scientific research fields. The following is a detailed summary of its core characteristics:

1. Structural design features
Vertical lifting mechanism
Flexible loading: The furnace body is vertically lifted and lowered by a hydraulic or electric screw system, with a large furnace opening and sufficient operating space, making it easy to load and unload large and irregular workpieces (such as long shafts and frame structural components).
Continuous production support: The dual cart cyclic feeding design can achieve seamless connection between “one cart discharging and one cart feeding”, reducing downtime and improving production efficiency.
Modular expansion: Some models support independent temperature control module expansion in multiple temperature zones to meet the processing needs of workpieces of different sizes and shapes.
Lightweight and efficient insulation furnace
Material optimization: Adopting alumina polycrystalline fiber or lightweight ceramic fiber furnace, the weight is reduced by 2/3 compared to traditional furnace body, and the insulation performance is improved to reduce energy consumption.
Double layer furnace shell design: The outer layer is a air-cooled circulation structure, ensuring that the outer wall temperature of the furnace body is ≤ 45 ℃, improving the operating environment and reducing heat loss.
Compact space utilization
The effective space utilization rate inside the furnace is high, suitable for batch processing of small and medium-sized workpieces (such as electronic components, ceramic pieces), and can also be customized to meet special size requirements.

2. Characteristics of process control
High precision temperature control
PID intelligent temperature control system: The temperature control accuracy is within ± 1 ℃, supporting 30 programmable temperature curves to meet complex process requirements such as annealing, sintering, brazing, etc.
Multi zone independent temperature control: The furnace can be divided into multiple temperature zones, and each temperature zone can independently adjust the temperature to ensure the temperature uniformity of large workpieces or complex structural components (temperature difference ≤ ± 5 ℃).
Compatibility with multiple atmosphere environments
Vacuum processing capability: capable of vacuuming to ≤ 10 ⁻ ³ Pa, suitable for anti-oxidation treatment of active metals such as titanium and zirconium.
Atmosphere protection function: supports the introduction of protective gases such as nitrogen, argon, and hydrogen to prevent metal oxidation or achieve specific reactions (such as hydrogen atmosphere reduction).
Accurate control of atmosphere flow: equipped with quality flow meters to ensure stable gas ratios and improve process repeatability.
Rapid heating and energy-saving design
Efficient heating element: Silicon carbon rod or silicon molybdenum rod heating, combined with intelligent power regulator, to achieve rapid temperature rise (such as from room temperature to 1200 ℃ in just 30 minutes).
Energy saving mode: Automatic power reduction during the insulation stage, combined with lightweight furnace design, reduces overall energy consumption compared to traditional furnace bodies.

3. Operation and safety features
Human computer interaction optimization
7-inch touchscreen control: dynamically displays heating curves, real-time temperature and atmosphere parameters, supports curve storage and retrieval.
Paperless recording function: Built in data logger, automatically saves process parameters for easy quality traceability.
Remote monitoring: Through RS-485 serial port or Ethernet interface, computer remote control and data acquisition can be achieved.
Multiple security protections
Overtemperature alarm power-off: When the temperature exceeds the set value, the heating power supply will be automatically cut off to prevent equipment damage.
Broken thermocouple protection: Stop heating immediately when the thermocouple breaks to avoid temperature runaway.
Overcurrent/leakage protection: Automatic power-off in case of circuit abnormalities to ensure the safety of operators.
Air curtain sealing technology: The contact surface between the furnace door and the furnace body adopts flexible sealing strips to reduce heat loss while preventing gas leakage.
Maintain convenience
Quick replacement of heating elements: The silicon carbon rod is installed with a snap fit, which can be replaced without disassembling the furnace body, reducing maintenance time to within 30 minutes.
Convenient furnace cleaning: Lightweight fiber materials are corrosion-resistant, and the cleaning cycle is extended to once a month, reducing downtime costs.

4. Scope of application characteristics
Metal material processing
High temperature alloys: Vacuum solution treatment eliminates stress and improves creep resistance.
Precision brazing: Achieving small gap welding in an inert atmosphere, suitable for aerospace components.
Powder metallurgy: sintering and infiltration of hard alloys, controlling porosity to improve hardness.
Ceramic material sintering
Transparent ceramics: Sintering alumina in a hydrogen atmosphere reduces porosity and increases light transmittance.
Functional ceramics: Silicon nitride ceramics are densified under vacuum to enhance fracture toughness.
Electronics and New Energy Materials
Semiconductor packaging: prevents metal contamination and ensures stable electrical performance of chips.
Lithium ion batteries: High temperature sintering of positive electrode materials (such as NCM, LFP) to optimize crystal structure.
Research and customization needs
Trial burning sample service: The manufacturer provides small batch trial production to help users verify the feasibility of the process.
Non standard customization: Adjust furnace size, heating power, and atmosphere control system according to user needs to adapt to special material processing.

5. Economic and flexibility characteristics
Reduce overall costs
Energy saving and consumption reducing: The combination of lightweight furnace and intelligent temperature control reduces energy consumption per unit product.
Improve yield rate: high-precision temperature control reduces process fluctuations and lowers scrap rate.
Extend equipment lifespan: High quality materials and protective design make the furnace body last longer.
Adapt to the needs of multiple industries
From aerospace high-temperature alloy processing to electronic component packaging, from ceramic sintering to powder metallurgy, covering multiple fields such as metals, ceramics, electronics, and new energy.
Support the full process requirements from laboratory research and development to industrial production.