Heating wire is a common heating element and plays an important role in people's lives. Iron-chromium-aluminum alloy heating wire and nickel-chromium alloy heating wire are the two most commonly used heating wires. They each have their own advantages and disadvantages. The following is a detailed summary for you:
1. Iron-chromium-aluminum alloy heating wire
Advantages of iron-chromium-aluminum alloy heating wire: high operating temperature, the experiment shows that the maximum operating temperature of iron-chromium-aluminum alloy heating wire can reach 1400 degree . The iron-chromium-aluminum alloy heating wire has long service life, high resistivity, high surface composite, and good oxidation resistance.
Disadvantages of iron-chromium-aluminum alloy heating wire: The strength of iron-chromium-aluminum alloy heating wire is low in high temperature environment, and the plasticity of iron-chromium-aluminum alloy heating wire will increase with the increase of temperature, that is to say, iron-chromium-aluminum alloy heating wire is prone to deformation at high temperature. And it is not easy to repair after deformation.
2. Nickel-chromium alloy heating wire
The advantages of nickel-chromium alloy heating wire: high strength in high temperature environment, long-term high temperature operation is not easy to deform, difficult to change the structure, and the normal temperature plasticity of nickel-chromium alloy heating wire is good, and the repair after deformation is relatively simple. In addition, the nickel-chromium alloy heating wire has high emissivity, non-magnetic, good corrosion resistance and long service life.
Disadvantages of nickel-chromium alloy heating wire:
The operating temperature cannot reach the level of the previous heating wire. Nickel-chromium alloy heating wire requires the use of nickel. The price of this metal is higher than that of iron, chromium, and aluminum. Therefore, the manufacturing cost of nickel-chromium alloy heating wire is relatively high, which is not conducive to cost control.
