Multi zone rotating tube furnace-gradient temperature controlled atmosphere heat treatment special equipment

The multi temperature zone rotating tube furnace is a high-end intelligent heat treatment equipment specially designed for complex high-temperature gradient heat treatment, continuous sintering of powder particles, atmosphere reduction modification, and new material experimental research and development. It integrates multi-stage independent temperature control technology and furnace tube rotating dynamic heating design to solve the industry pain points of traditional single temperature zone tube furnaces, such as single temperature, uneven material heating, simple process curve, and poor consistency of sintered products. As a core and commonly used equipment in the fields of university research institutes, new material research and development enterprises, powder metallurgy and chemical engineering, and new energy material processing, the multi temperature zone rotary tube furnace can be configured with dual temperature zones, three temperature zones, four temperature zones, and multiple independent heating zones according to process requirements to more accurately create a gradient temperature field. Combined with a 360 ° continuous rotation and tilt adjustable structure of the furnace tube, it allows powder and granular materials to dynamically roll and heat up, resulting in more complete sintering reactions and more accurate temperature control. It is suitable for various refined and complex high-temperature heat treatment experiments and small-scale pilot production conditions.

Customized vacuum rotary tube furnace (click on the image to view product details)

1. Working principle and core advantages of multi temperature zone rotary tube furnace
Different from the shortcomings of ordinary single temperature zone tube furnaces that can only achieve single constant temperature heating, the multi temperature zone rotary tube furnace adopts a dual core design of multi temperature zone independent zone heating and single furnace tube dynamic rotary heating. Each heating zone is equipped with independent heating elements, independent temperature control modules, and dedicated temperature sensing devices. The temperature zones do not interfere with each other and can be independently controlled. The preheating gradient zone, high-temperature sintering zone, constant temperature insulation zone, and slow cooling zone can be flexibly set to create a continuous temperature gradient environment that meets the requirements of material sintering process, better replicating various complex temperature rise and fall process curves. The temperature control accuracy can reach ± 1 ℃, and the process repeatability is strong.
The equipment furnace tube adopts a rotatable and tiltable integrated structure design, supporting stepless speed regulation to adjust the rotation speed. The tilt angle is adapted to material feeding, sintering reaction, and automatic discharge operation as needed. Material loading and continuous sintering operations can be completed without disassembling the furnace tube, making operation convenient and time-saving. During the sintering process, the furnace tube continues to rotate at a constant speed, and the internal powder and granular materials constantly roll and mix dynamically, completely avoiding problems such as material accumulation, local overheating, sintering dead corners, and uneven heating. The sintering uniformity of each batch of materials is greatly improved, and the experimental data is stable and reliable. The quality of the mass-produced products is standardized.
The furnace body adopts a double-layer carbon steel sealed shell structure, with high-purity alumina fiber furnace insulation material built-in. It is resistant to high temperature, corrosion, and long-term high-temperature operation without slag or deformation. It can lock in the internal heat energy of the furnace to reduce heat loss, with good energy-saving and consumption reducing effects. At the same time, it can ensure that the equipment shell does not heat up at room temperature, with a high operating safety factor, and is suitable for long-term continuous operation in the laboratory. The heating element adopts an embedded solidification installation process, with uniform distribution in the circumferential and axial directions. The thermal energy radiation is mild and uniform, and the temperature field distribution is stable, effectively extending the overall service life of the equipment and reducing later maintenance costs.

2. Intelligent and precise temperature control system, programmable to adapt to various complex processes
The multi temperature zone rotary tube furnace is equipped with an industrial grade intelligent touch screen control system, which uses mature PID intelligent adjustment technology combined with temperature self-tuning function. The operation interface is intuitive and simple, and beginners can quickly get started. The device supports 30 or more stages of temperature rise and fall program programming, and can freely edit diverse process curves such as heating, constant temperature, cooling, insulation, and cyclic heat treatment. It can store and call commonly used sintering formulas at any time with one click, without the need for repeated parameter debugging, greatly improving the efficiency of experimental research and production operations.
All equipment operation data, temperature change curves, and process operation records can be displayed in real time, automatically stored, and exported with one click, making it convenient for universities to trace and analyze scientific research experimental data, enterprises to optimize production processes, and better adapt to the needs of scientific research project data archiving and industrial production quality control. At the same time, the equipment can be equipped with a two-stage vacuum unit and a multi-channel mixed gas supply system as needed, which can extract high vacuum, introduce various protective atmospheres such as nitrogen, argon, hydrogen, etc. It is compatible with multiple process modes such as vacuum sintering, atmosphere sintering, high-temperature reduction, and anti-oxidation heat treatment. It is versatile and suitable for special heat treatment processing requirements of different materials.

3. Full dimensional non-standard customization, matching various working conditions as needed
The parameters of the conventional standard multi temperature zone rotary tube furnace are fixed, making it difficult to adapt to the personalized usage needs of special materials, special processes, and special sites. Therefore, the equipment supports full dimensional non-standard customization services, and the source manufacturer can tailor exclusive equipment solutions according to the actual process requirements of users. Core parameters such as the number of temperature zones, rated working temperature, furnace tube material and size, effective length of heating zone, rotation speed range, tilt adjustment angle, vacuum level, and atmosphere pipeline configuration can be customized. Whether it is a small multi temperature zone experimental model in the laboratory or a large-scale multi temperature zone rotary sintering equipment in pilot production, production can be customized according to needs.
The furnace tube can be equipped with various materials such as quartz tube, high-purity corundum tube, high-temperature resistant alloy tube, stainless steel tube, etc. as needed, to adapt to different temperature ranges and materials with different corrosion characteristics for processing; The temperature control accuracy, number of temperature control sections, equipment appearance size, and installation method can all be personalized and adjusted, truly achieving equipment adaptation to the process without the need for process adaptation equipment, fully meeting various differentiated high-temperature heat treatment operation needs.

4. The main application industries and applicable processes of multi temperature zone rotary tube furnace
The multi temperature zone rotary tube furnace has a wide application coverage, taking into account both scientific research experiments in universities and small-scale pilot production in industrial and mining enterprises, and is suitable for core high-temperature heat treatment conditions in multiple fields. The research institutes and material laboratories of universities are mainly used for research and development of new materials, graphene growth and preparation, CVD chemical vapor deposition experiments, high-temperature modification of powder materials, gradient sintering of special ceramic samples, material annealing and tempering, catalytic material preparation and other scientific experimental work. The gradient temperature control and uniform rotation heating characteristics ensure that the experimental data is accurate, controllable and reproducible.
New material enterprises, metallurgical industrial and mining enterprises, and new energy processing plants are mainly used for pilot scale mass production operations such as metal powder metallurgy sintering, high-temperature purification of carbon materials, rare metal atmosphere reduction, particle powder roasting modification, high-temperature treatment of environmentally friendly materials, precision gradient heat treatment of electronic components, etc., effectively improving material sintering quality and production efficiency, reducing production energy consumption and operating costs, and helping enterprises better complete refined heat treatment production tasks.

5. Source manufacturer equipment guarantee and after-sales support
We are a professional manufacturer of multi temperature zone rotary tube furnaces, with no intermediary markup. Our equipment is strictly controlled throughout the entire process from research and development design, production and processing to factory debugging. Before leaving the factory, each device undergoes high-temperature no-load testing, temperature control accuracy calibration, air tightness testing, and rotary operation testing. Only when its performance meets the standards can it be shipped. The equipment quality is stable and reliable. The manufacturer provides one-stop supporting services including on-site installation and debugging, technical training for operators, and process guidance. The equipment is maintained for life, and 24-hour after-sales response is fast. Follow up on parts replacement, process upgrades, and equipment maintenance throughout the process ensures worry free after-sales service.

High temperature rotary furnace that can be used to calcine powders (click on the image to view product details)

Whether you need a standard specification multi temperature zone rotary tube furnace or a non-standard customized gradient temperature control rotary tube equipment, we can provide professional selection solutions, detailed equipment parameters, and real-time quotations for free, tailor-made high-temperature heat treatment equipment that is suitable for your own sintering process.Click to learn more customized tube furnaces! Or click on online customer service to learn more about product information!