What are the characteristics of multi zone rotary furnaces used in experiments?

The experimental multi temperature zone rotary furnace combines the advantages of multi temperature zone control and dynamic heating of the rotary furnace. Its core features include temperature uniformity, independent control of multiple temperature zones, high efficiency and energy saving, intelligent operation, wide applicability, and safety and reliability. The specific analysis is as follows:

1. Temperature uniformity and dynamic heating
Rotary design: The furnace tube can rotate or tilt 360 °, allowing the material to continuously roll during the heating process, avoiding local overheating or underheating, and ensuring uniform temperature distribution. For example, the lithium iron phosphate rotary furnace achieves material homogenization treatment through rotational motion, improving electrochemical performance.
Efficient heat conduction: The dynamic contact between the material and the heating element enhances the heat conduction efficiency and shortens the firing cycle. Some models are equipped with air cooling systems to further balance the temperature field and reduce surface temperature.

2. Independent control of multiple temperature zones
Gradient temperature simulation: Multiple independent temperature zones can be set up within the same furnace, and each temperature zone can be individually adjusted for temperature, heating rate, and insulation time. For example, the BJXG-20-10 multi zone tube furnace can simulate complex temperature gradients, meeting the requirements of gradient material preparation or multi-layer material sintering.
Flexible process adaptation: supports simultaneous processing of multiple materials or stepwise reactions, reduces experimental batches, and improves efficiency. For example, the positive and negative electrode materials of lithium batteries can be preheated, sintered, and cooled in different temperature zones.

3. Efficient energy saving and material optimization
High quality insulation materials: using high-efficiency insulation layers such as high-purity alumina fibers and ceramic fibers to reduce heat loss and save energy by more than 50%. For example, the alumina fiber furnace of the TFR-1200-60-440 rotary furnace can significantly reduce energy consumption.
Heating element optimization: Resistance wires, silicon carbide rods, etc. are evenly distributed around the furnace tube, combined with a PID temperature control system to achieve precise temperature control (± 1 ℃) and avoid energy waste.

4. Intelligence and automation control
Program temperature control: Supports 30 programmable controls, with pre-set heating, constant temperature, and cooling curves to meet different process requirements. For example, the GSL-1600X-R-II furnace recommends a heating rate of ≤ 10 ℃/min below 1400 ℃ to ensure experimental reproducibility.
Remote monitoring and fault diagnosis: Some models are equipped with PLC or DCS control systems, which support remote operation, data recording, and fault warning, improving experimental safety and convenience.

5. Atmosphere control and sealing
Inert/reducing atmosphere: The sealing system adopts stainless steel flanges, high-temperature resistant silicone rubber or quartz tubes, which can be filled with nitrogen, argon, hydrogen, etc. to prevent material oxidation or reduction. For example, the laboratory quartz tube rotary furnace can be filled with inert gas at 1200 ℃ to meet the requirements of special metal heat treatment.
Vacuum environment: Some models support vacuum operation (such as 1400 degree vacuum rotary tube furnace), suitable for high-purity material synthesis or degassing treatment.

6. Safety and durability
Multiple protection functions: equipped with over temperature, over pressure, leakage protection, and door opening and power-off functions to ensure safe operation. For example, the HF-RZ series converter adopts a double-layer structure of cold-rolled steel plates, which is durable and long-lasting.
High temperature resistant materials: The furnace tube can be made of materials such as quartz, corundum, silicon carbide, etc., to adapt to different temperatures and chemical environments. For example, quartz tubes can withstand high temperatures above 1200 ℃ and have excellent chemical stability.

7. Flexible customization and modular design
Adjustable parameters: Furnace size, heating elements, temperature control accuracy, etc. can be customized according to experimental requirements. For example, the TFR-1200-60-440 furnace tube size is φ 60/φ 100 * 1000mm, suitable for different quantities.
Modular Expansion: Supports multiple tube or multi temperature zone combinations to meet complex experimental scenarios. For example, a three zone rotary furnace can simultaneously process three types of materials, improving experimental efficiency.

8. Widely applicable fields
Materials Science: Synthesis of nanomaterials, ceramic powders, metal structural materials, etc.
New energy: Sintering of positive and negative electrode materials for lithium batteries (such as lithium iron phosphate and ternary materials).
Chemical Engineering: Catalyst Evaluation, High Temperature Reaction Research.
Semiconductor: deposition and epitaxial growth of high-k dielectric materials.