What is the impact of the surface load on the electric heating wire

What is the impact of the surface load on the electric heating wire

Some customers are both unclear and unclear about the specific understanding of the surface load of the electric heating wire. They only roughly know that the surface load value of the electric heating wire determines the magnitude of the heating capacity, the speed of heating up time, and the length of the electric heating wire's lifespan. Here, Manager Sun will talk to everyone about the significance of the surface load storage of electric heating wires.

The surface load of an electric heating wire refers to the power value shared by the wire per unit area, denoted by the symbol ω Mark in W/cm2.

For high-temperature resistance furnaces, when the power is the same, selecting a higher surface load means that the size of the heating wire used can be smaller and the material can be saved. However, the surface load is inversely proportional to the service life of the heating wire. If the surface load is selected too high, it will not only fail to save materials but also waste materials due to the decrease in service life. Therefore, the correct selection of surface load is an important factor in the rational use of electrothermal materials.

The selection of surface load is closely related to the material, specifications, structure, usage temperature, and heat dissipation status of the electric heating wire, as well as the atmosphere around the electric heating wire, the materials of supporting components, and the frequency of heating and cooling during use. The allowable surface load of electric heating wire components used in industrial resistance furnaces and civil electric heaters varies greatly due to different purposes, so it is impossible to provide a universally applicable value.

Www.superbheater.com