YIFA · Complete solution for electric furnace
YIFA · Complete solution for electric furnace
Pusher-Elevator Furnace
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The pusher-elevator furnace is a high-efficiency, multi-functional thermal processing system. Below is a structured technical summary:
Design Features
1. Chamber Configuration
- Single-Channel Dual-Pusher Structure: Ensures continuous material flow with synchronized pusher plates for precise batch handling.
- High-Alumina Flat Roof: Constructed using wet masonry techniques with refractory mortar, enhancing gas-tight integrity and thermal uniformity (±3°C across the chamber).
- Modular Refractory Lining: Customizable with silicon carbide or mullite-based materials for temperatures up to 1650°C.
2. Elevation Mechanism
- Hydraulic/Electromechanical Lift System: Enables smooth vertical movement (0–1000 mm travel range) for optimized loading/unloading cycles.
- Guided Rail Alignment: Precision-engineered rails prevent tilting during elevation, ensuring operational stability.
Operational Principles
1. Heating Phase
- Utilizes fuel combustion (natural gas/LPG) or electric heating elements (MoSi₂/SiC rods) to achieve target temperatures (RT–1600°C).
- Dual pushers cyclically advance materials through the chamber, facilitating counterflow heat exchange with exhaust gases.
2. Cooling Phase
- Forced-Circulation Cooling: Integrated blowers and heat exchangers enable rapid cooling rates (up to 50°C/min), minimizing process downtime.
- Adjustable gas quenching options (N₂/Ar) for controlled microstructure development.
Technical Specifications
- Throughput Capacity: 50–500 kg/h (material-dependent)
- Atmosphere Control: Leak rate <0.1 vol%/h under inert gas purge
- Safety Systems: Overload sensors, emergency stop, and gas pressure interlocks
Industrial Applications
- Advanced Ceramics: Sintering of structural ceramics (Al₂O₃, ZrO₂) and electronic substrates.
- Magnetic Materials: Heat treatment of ferrite cores and rare-earth alloys.
- Powder Metallurgy: Debinding and sintering of MIM/CIM components.
- Metal Processing: Annealing of stainless steel wires, diffusion coatings.
Competitive Advantages
- Energy Efficiency: Regenerative burners recover 30–40% waste heat.
- Process Flexibility: Independent control of pusher speed (1–20 cm/min) and zone temperatures.
- Low Maintenance: Quick-release liners and modular components reduce service downtime.
Keywords:
High temperature electric furnace
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