What is used to insulate metal tubes with heating wire?
The heating tube is filled with heating wire in the seamless metal tube (carbon steel tube, titanium tube, stainless steel tube, copper tube), and the void part is filled with magnesium oxide powder with good thermal conductivity and insulation and then shrunk the tube, and then processed into various types required by the user. It has simple structure, high thermal efficiency, good mechanical strength, and good adaptability to harsh environments. It can be used for heating various liquids and acids and alkalis, but also suitable for heating and melting of metals with low melting points (lead, zinc, tin, babbitt).
When the electric heating tube is used to heat the metal or solid metal salt, paraffin, asphalt and other substances that are easy to melt, the heating material should be melted first, at this time, the external voltage of the electric heating tube can be reduced, and then restored to the rated voltage when the melting is completed. In addition, when heating electric heating pipes for substances that are prone to explosion accidents such as nitrate, safety measures should be fully considered. When the electric heating tube is used for air heating, pay attention to the uniform arrangement of the electric heating tube, the advantage of this is to ensure that the electric heating tube has a relatively full and uniform heat dissipation space, and as far as possible to ensure the fluidity of the air, improve the heating efficiency of the electric heating tube. When the non-standard electric heating tube is used for liquid or metal solid heating, it should be noted that the electric heating tube must be completely placed into the heated object, and the electric heating pipe is not allowed to burn empty. If there is scale or carbon on the outer metal tube shell after the electric heating tube is used, it should be removed in time to avoid affecting the heat dissipation performance and service life of the electric heating tube.
