Precautions for the Use of Three Zone High Temperature Tube Furnace

Through the advantages of 1200℃ high temperature and independent temperature control in the three-temperature zone, the three-zone high temperature tube furnace has the adaptability of 130mm furnace tube, and is widely used in material synthesis, new energy pilot trials and other scenarios. Mastering the standardized operation of the gas atmosphere control and valve operation of the three zone high temperature tube furnace is very important to ensure the safety of the equipment and the reliability of the experiment. In this article, I will combine the characteristics of the equipment to introduce you to the main precautions when using the three zone high temperature tube furnace.

In the adjustment of the gas atmosphere, the air pressure in the quartz tube needs to be strictly controlled within 0.02MPa (relative air pressure), which is a safety threshold based on the strength of the 130mm quartz tube material and the sealing performance of the flange. Although the high-purity quartz tube has excellent high temperature resistance, its compressive strength is limited. Overpressure may cause the tube body to burst or the flange seal to fail, especially the 130mm large-size furnace tube. The gas expansion is more obvious by heat, and it needs to be monitored in real time through a pressure gauge to avoid safety accidents.

When venting to the furnace tube, because the conventional air pressure of the gas cylinder (10-15Mpa) is much higher than the safety threshold, a pressure reducing valve must be installed to reduce the pressure. The company's supporting pressure reducing valve has a range of 0.01MPa-0.1MPa, which can accurately control the output pressure, and is exclusively adapted to the flange interface of the three zone high temperature tube furnace. The sealing is better than that of general products, which can not only reduce the risk of leakage, but also eliminate the trouble of interface matching, and ensure the safety of experiments and the stability of the atmosphere.

In the valve operation link, it is not recommended to close the suction valve and intake valve at the flange end during the sample heating experiment. Samples may release gas at high temperatures, and the accumulation of gas in a confined environment can easily cause the air pressure to exceed the upper limit. If the process must be closed because of it, someone needs to be on duty to monitor the pressure gauge, and immediately open the vent valve to relieve the pressure when it exceeds 0.02MPa. After the experiment is over, it is necessary to keep the air valve open until the furnace tube cools down to avoid negative pressure inhalation of air oxidation samples or moisture affecting subsequent experiments.

In terms of the use of special gases, it is not recommended to use flammable and explosive gases such as hydrogen and methane, or toxic gases such as chlorine and hydrogen sulfide. Such gases can easily cause explosions and endanger health at high temperatures, and may also corrode the components of the three zone high temperature tube furnace. If it must be used, customers need to do their own explosion-proof protection and personnel training. The company is not responsible for the problems caused by such gases.

As a professional supplier, our three zone high temperature tube furnace has passed CE certification, and our professional team can provide you with remote installation guidance and after-sales support. For B-side buyers, three zone high temperature tube furnace can not only meet the needs of multi-temperature zone temperature control and large-size sample processing, but also reduce the risk of use through safety design and supporting services. Whether you are a new energy pilot or aerospace material testing, we can use high-quality three zone high temperature tube furnace and services to escort your project and become your reliable partner.