What Is the Most Advantage of Dual Heating Zone Split Tube Furnace?

Dual heating zone split tube furnace divides the heating tube body into two independent heating areas, each area is equipped with a dedicated heating element and temperature control system, which realizes the precise operation of one zone and one control. This design breaks the limitations of the overall temperature control and uniform temperature of the tubular furnace in a single temperature zone, but there is no gradient. It can set different target temperatures in the two temperature zones according to experimental or production needs, and control the temperature fluctuation in each temperature zone within ±1℃ through a high-precision temperature control system, so that the temperature gradient can be stable and continuous. For example, in the vapor deposition process of semiconductor materials, the raw material evaporation zone and the film growth zone need to be set to different temperatures. Because the evaporation zone needs to maintain a higher temperature to fully vaporize the raw materials, and the growth zone needs to be controlled at a lower temperature to allow the film to be deposited evenly, the independent temperature control capability of the dual heating zone split tube furnace just meets this demand, avoiding the waste of raw materials or unstable film quality caused by the inability of the single-temperature zone equipment to partition due to temperature.

And our dual heating zone split tube furnace has been further upgraded on the advantage of precise temperature control in the independent dual-temperature zone, providing B-terminal users with a better performance experience. First of all, in the design of the heating system, we used U-shaped 1500-grade silicon carbide rods as the heating element. Compared with traditional resistance wires or ordinary silicon carbon rods for heating, U-shaped 1500-grade silicon carbide rods have better high temperature resistance stability and thermal radiation efficiency, and can work continuously for a long time at a high temperature of 1400℃ without aging and attenuation. At the same time, the heating rate is faster, which can greatly shorten the experiment or production cycle. The silicon carbide rods in each temperature zone are arranged symmetrically and independently. With the optimized design of the high-density alumina thermal insulation material in the partition, the heat conduction interference between the two temperature zones is effectively blocked, and it provides a reliable guarantee for experiments that require accurate temperature gradients.

In addition, on the temperature control system, we are equipped with a dual-channel independent PID intelligent thermostat, and equipped with a high-precision S-type thermocouple as a temperature measuring element. S-type thermocouple has very good temperature measurement stability and accuracy in the high temperature range, and can capture subtle temperature changes in the two temperature zones in real time and feed them back to the thermostat, so that the temperature control is timely and accurate. The system supports the preset and automatic operation of multi-stage program heating, constant temperature, and cooling curves. Users can set the rhythm of temperature changes in different temperature zones at once according to process requirements, and the equipment will automatically perform operations without manual duty, which not only reduces human operation errors, but also improves work efficiency. In addition, the temperature control system also has multiple safety functions such as over-temperature alarm, disconnection protection, and overcurrent protection. When the temperature of one of the temperature zones exceeds the set range or the S-type thermocouple has poor contact and other failures, the equipment will immediately cut off the heating power supply and issue a light alarm to protect the safety of the experiment and production process.

Dual heating zone split tube furnace has become an important equipment to promote technological breakthroughs in these fields through the core advantages of precise temperature control in independent dual-temperature zones. Our dual heating zone split tube furnace can not only reach the international leading level in performance, but also create higher value for B-terminal users through customized solutions and full-cycle services. If you are looking for a reliable dual heating zone split tube furnace for a scientific research project or production line, you can contact us at any time and we will provide you with free technical consultation.