What are the advantages of using a multi zone rotating electric furnace for experiments?

The experimental multi temperature zone rotating electric furnace combines core technologies such as independent temperature control, furnace tube rotation, and atmosphere control in multiple temperature zones, demonstrating significant advantages in material synthesis, heat treatment, catalytic reactions, and other fields. Its core advantages can be summarized into the following five aspects:

1. Accurate and flexible temperature control to meet complex process requirements
Independent temperature control in multiple temperature zones
Function implementation: The device is usually designed as a dual temperature zone, triple temperature zone, or multi temperature zone structure, and each temperature zone can independently set the temperature, heating rate, and insulation time. For example, a three temperature zone rotary furnace can achieve precise temperature control in stages by rapidly raising the temperature in the first high-temperature zone (such as 1600 ℃), controlling the reaction rate in the middle temperature zone (such as 1000 ℃), and slowly cooling in the second low-temperature zone (such as 400 ℃).
Advantages reflected:
Adapting to complex processes: In ceramic sintering, gradient temperature control can reduce thermal stress, avoid cracking, and improve yield.
High experimental repeatability: The temperature control accuracy reaches ± 1 ℃, and with the help of fuzzy PID control technology, the temperature fluctuation is small, ensuring the reliability of experimental data.
Rapid temperature rise and fall capability
Function implementation: Using high-power heating elements (such as silicon molybdenum rods) and efficient insulation materials (such as alumina fibers), the heating rate can be adjusted from 0-20 ℃/min, and the cooling rate is accelerated by forced air or water cooling.
Advantages reflected:
Shortening the experimental period: In the synthesis of nanomaterials, rapidly raising the temperature to the reaction temperature (such as 800 ℃) can shorten the formation time of crystal nuclei and the duration of a single experiment.
Inhibition of side reactions: Rapid cooling can fix the structure of intermediate products, reduce unnecessary phase transitions at high temperatures, and improve the purity of the target product.

2. Furnace tube rotation promotes uniformity and improves material properties
The material rolls evenly and is heated evenly
Function implementation: The furnace tube rotates uniformly at a speed of 1-15rpm, causing the material to continuously roll during the heating process, avoiding local overheating or uneven temperature.
Advantages reflected:
Ceramic sintering: Rotation ensures sufficient contact between powder particles, increases the density of the sintered body, and reduces the porosity.
Metal heat treatment: Rotation eliminates internal stresses generated during annealing, improves metal toughness consistency, and reduces the range of hardness fluctuations.
Prevent material adhesion and coking
Function implementation: The centrifugal force generated by rotation keeps the material in relative motion with the inner wall of the furnace tube, reducing contact time.
Advantages reflected:
Polymer pyrolysis: In the experiment of plastic cracking to produce fuel oil, rotation prevents molten plastic from sticking to the furnace tube, reduces coking amount, and extends equipment maintenance cycle.
Catalytic reaction: Rotation promotes gas flow on the catalyst surface, improves reactant contact efficiency, and increases CO conversion rate.

3. Accurate atmosphere control, expanding experimental boundaries
Multi atmosphere communication ability
Function implementation: Equipped with gas inlet and outlet, mass flow meter and pressure gauge, capable of introducing inert or reducing gases such as nitrogen, argon, hydrogen, etc., supporting vacuum environment.
Advantages reflected:
Anti oxidation protection: In metal annealing experiments, introducing high-purity argon gas can completely isolate oxygen and reduce the thickness of the surface oxide layer.
Reduction reaction optimization: In the preparation of fuel cell catalysts, H ₂/Ar mixed atmosphere (ratio 1:9) combined with rotary heat treatment narrows the particle size distribution of platinum nanoparticles.
Vacuum environment simulation
Function implementation: Equipped with a dual stage vacuum pumping system of mechanical pump and molecular pump, the ultimate vacuum degree can reach 10 ⁻⁴ Pa.
Advantages reflected:
Reduce impurity doping: In GaN epitaxial growth experiments, the vacuum environment reduces the defect density to below 10 ⁵ cm ⁻ ², improving the luminous efficiency of LED devices.
Simulating extreme conditions: In high-pressure physics experiments, combined with high-pressure gas inlets, extreme environments such as the Earth’s core can be simulated to explore new high-pressure phase materials.

4. Efficient energy-saving and safe design, reducing operating costs
Efficient insulation material
Function implementation: The furnace is made of high-purity alumina fiber or alumina polycrystalline fiber vacuum adsorption, which reduces thermal conductivity.
Advantages reflected:
Energy saving of over 50%: Compared to traditional brick furnaces, the time required to heat up an empty furnace to 1200 ℃ is shortened, and power consumption is reduced.
Extended service life: The insulation material has a temperature resistance of 1800 ℃, excellent thermal shock resistance, and extended furnace life.
Multiple security protections
Function implementation: Equipped with safety devices such as over temperature alarm, leakage protection, power-off when opening the door, emergency stop, gas leak detection, etc.
Advantages reflected:
Operational safety: In hydrogen reduction experiments, the gas leak detection system can monitor the concentration of H ₂ in real time. When the concentration exceeds the standard, the gas source will be automatically cut off and an alarm will be triggered to avoid the risk of explosion.
Equipment protection: The over temperature alarm function can prevent the heating element from being overloaded and damaged, reducing maintenance costs.

5. Modular design and intelligent operation enhance experimental efficiency
Modular structure
Function implementation: The temperature zone, furnace tube, heating element and other components adopt modular design, supporting quick replacement and upgrade.
Advantages reflected:
Flexible expansion: Users can increase or decrease the number of temperature zones according to experimental needs (such as upgrading from dual temperature zone to four temperature zone), or replace furnace tubes of different materials (such as quartz tube → corundum tube).
Reduce maintenance costs: Modular design allows for individual replacement of faulty components, reducing repair time.
intelligence control system
Function implementation: Equipped with a touch screen human-machine interface, supporting functions such as program heating, data recording, and remote monitoring.
Advantages reflected:
Easy to operate: Users can remotely monitor the progress of experiments through a mobile app, adjust the temperature curve in real time, and reduce manual intervention.
Data traceability: The system automatically records experimental parameters (temperature, time, atmosphere flow rate, etc.), generates experimental reports, and facilitates the reproduction and review of scientific research results.