Brief Introduction and Materials of Tubular Electric Heater
Basic Introduction
Tubular electric heater is composed of metal tube, spiral resistance wire, and electrical grade magnesium oxide powder with good thermal conductivity and insulation, as well as terminals, etc. It is widely used for heating liquids, air, etc. Common examples include water heaters, ovens, coffee pots, etc.
Materials
Common materials for the outer tube 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.
There are generally two types of materials for lead terminals: stainless steel and free-cutting iron.
Sealing materials include: epoxy, silicone, glass, etc.
