Tubular electric heater
Common outer tube materials include In800, In840, 304, 316L, 310S, aluminum, copper, low carbon steel, etc.
Magnesium oxide powder is selected in different specifications according to different usage requirements, including high-temperature powder, medium-temperature powder, etc.
The resistance wire is the heating element, and there are generally two types of materials: Ni-Cr wire and Fe-Cr-Al wire.
Lead terminal materials generally include two types: stainless steel and free-cutting iron.
Sealing materials include: epoxy, silicone, glass, etc.
Process:
The heating tube is made by inserting electric heating wire into the outer tube (carbon steel tube, titanium tube, stainless steel tube, copper tube), filling the gaps with magnesium oxide powder that has good thermal conductivity and insulation, then reducing the tube diameter, followed by heat treatment (some tubes do not require it), and finally processing into various shapes required by the user. It has the advantages of simple structure, high thermal efficiency, good mechanical strength, and good adaptability to harsh environments. It can be used for various
