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Product Details:
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| Highlight: | Alumina Ceramic Sintering Roller Kiln,Roller Kiln for Alumina Ceramic Sintering |
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This advanced industrial roller hearth kiln is a continuous high-temperature sintering production line specifically engineered for alumina ceramics, including ceramic substrates, insulating components, and structural ceramics. The core technology features roller hearth transport, where high-temperature ceramic rollers smoothly convey kiln furniture loaded with green parts through preheating, high-temperature holding, and cooling stages.
Designed using 3D digital modeling, the kiln offers a compact layout that facilitates fully automated production. Compared to traditional pusher or tunnel kilns, this roller hearth design provides superior temperature uniformity, stable production cycles, and higher automation levels.
| System / Component | Function / Role | Visual Feature |
|---|---|---|
| Kiln Insulation Shell | Encloses internal thermal field, prevents heat loss, ensures uniform temperature, reduces energy consumption | Segmented beige/white insulated side and top panels |
| Roller Transport System | Carries alumina ceramic parts through kiln at constant speed for continuous production | Stainless steel track structure and roller-end support mechanisms |
| Exhaust / Hot Air Circulation System | Removes volatiles and exhaust gases from sintering; recycles heat for energy efficiency | Dense piping on kiln roof, vertical exhaust stack, large green centrifugal exhaust fans |
| Service & Maintenance Platform | Provides safe working space for accessing fans, valves, and instruments | Elevated steel truss structure with anti-slip decking and yellow safety railings |
| Inlet/Outlet Auxiliary Mechanism | Ensures smooth loading/unloading of ceramic parts onto/off the kiln track | Roller conveyor / receiving platform |
| Zone | Temperature Range (°C) | Length Ratio | Key Role & Process Control |
|---|---|---|---|
| Preheating Zone | Room temp ~ 1200°C | 35% - 40% | Removes organic additives (PVA/PEG) with controlled heating rate to prevent cracking |
| High-Temperature Sintering Zone | 1550°C ~ 1680°C | 30% - 35% | Critical for alumina grain growth and densification with temperature difference < ±5°C |
| Rapid / Slow Cooling Zone | 1680°C ~ 200°C | 25% - 30% | Prevents abnormal grain growth and thermal stress cracking with forced and natural cooling |
Roller Material: In the 1680°C sintering zone, rollers utilize Reaction-Bonded Silicon Carbide (RBSiC) or 99% Alumina (99 Al₂O₃) for extremely low high-temperature creep resistance.
Kiln Lining: Multi-layer refractory construction with alumina hollow sphere bricks (1700°C+ resistance), lightweight high-alumina bricks/castable refractory middle layer, and insulating fiber felt outer layer enclosed behind metal shell.
This roller hearth kiln is specifically engineered for alumina ceramics' demanding process requirements: high sintering temperature (above 1650°C), extreme sensitivity to temperature gradients, and large binder burnout volume. Through RBSiC rollers, high-precision exhaust systems, and fully closed-loop PLC control, it delivers high output, exceptional stability, and low energy consumption for industrial-scale production.
For further information or to discuss your specific requirements, please contact us directly.
Contact Person: Miss. Scarlett.S
Tel: 8616602956098