Advantages and disadvantages of iron-chromium-aluminum alloy heating wire and nickel-chromium alloy heating wire
Advantages and disadvantages of iron-chromium-aluminum alloy heating wire
The advantage of the iron-chromium-aluminum alloy heating wire is that the operating temperature is high. The experiment shows that the higher operating temperature of the iron-chromium-aluminum alloy heating wire can reach 1400 ℃. The iron-chromium-aluminum alloy heating wire has long service life, high resistivity, high surface composite, and good oxidation resistance.
The disadvantage of the iron-chromium-aluminum alloy heating wire is that the strength of the iron-chromium-aluminum alloy heating wire is low in a high temperature environment. And it is not easy to repair after deformation.
Advantages and disadvantages of nickel-chromium alloy heating wire
The advantages of nickel-chromium alloy heating wire are high strength in high temperature environment, long-term high-temperature operation is not easy to deform, and it is not easy 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.
The disadvantage of nickel-chromium alloy heating wire is that 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.
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