Cartridge heating tube heating wire
In the manufacturing process of the single-head heating tube electric heating tube, the resistance wire used in the domestic electric heating tube is mainly two categories: nickel-chromium wire and iron-chromium-aluminum wire
Let's talk about the difference between nickel-chromium wire and iron-chromium-aluminum wire:
1. Main advantages and disadvantages of nickel-chromium heating wire:
●Advantages: The high temperature strength is higher than that of iron, chromium and aluminum, it is not easy to deform under high temperature use, its structure is not easy to change, its plasticity is better, it is easy to repair, its emissivity is high, non-magnetic, strong corrosion resistance, long service life, etc.
●Disadvantages: Because it is made of rarer nickel metal materials, the price of this series of products is up to several times higher than that of iron-chromium-aluminum, and the use temperature is lower than that of iron-chromium-aluminum.
2. Main advantages and disadvantages of iron-chromium-aluminum heating wire:
●Advantages: The iron-chromium-aluminum heating wire has a high operating temperature, the highest operating temperature can reach 1400 degrees, (0Cr21A16Nb, 0Cr27A17Mo2, etc.), long service life, high surface load, good oxidation resistance, high resistivity, and low price.
●Disadvantages: Mainly low strength at high temperature. As the use temperature increases, its plasticity increases, and the components are easy to deform, not easy to bend and repair.