The quartz heating tube is an electric heating device that uses high-quality quartz glass tubes as heating elements. It is mainly composed of sealed electric heating elements, metal flanges, terminal posts, terminal nuts and insulating materials. This heating tube has the characteristics of high thermal efficiency, fast heating, small thermal inertia, high temperature resistance, corrosion resistance, and stable thermochemical properties. During the heating process, the difference between the temperature of the heating wire and the surface temperature of the quartz tube is very small, so its thermal efficiency is particularly high. In addition, the quartz heating tube also has the advantages of small size, light weight, easy installation, and long service life. It is widely used in heating equipment in chemical, electronic, textile, printing and dyeing, food, machinery, metallurgy, ceramics, glass and other industries.