1. The inner alloy heating wire is energized and heated, and the water is heated by filling the tube and compressing the very tight magnesium oxide to conduct heat to the electric heating tube body.
2. The electric heating tube is made up of a heating wire in a seamless metal pipe (carbon steel pipe, titanium pipe, stainless steel pipe, copper pipe), and the gap portion is filled with a magnesium oxide powder having good thermal conductivity and insulation and then shrinking the pipe. Reprocessed into various shapes required by the user. The utility model has the advantages of simple structure, high thermal efficiency, good mechanical strength and good adaptability to harsh environments.
3. The electric heating tube can be used for heating various liquids and acid-base salts, and also for metal melting and melting at a low melting point.