Nov 30, 2020
What are the materials of the heating wire in the heating element?
The heating wire is a metal wire with high resistivity, which can generate heat after being energized. In the electric heating element, the heating wire is the core in the heating element. There are two common heating wires on the market: iron-chromium-aluminum alloy heating wires and nickel-chromium alloy heating wires. As the heating part of the heating element, these two wires have their own characteristics in terms of functional performance.
1. Fe-Cr-Al alloy heating wire: It is a heating wire made of iron, chromium and aluminum.
Advantages: Fe-Cr-Al alloy heating wire has high operating temperature, good oxidation resistance, long service life, high surface load and high resistivity, cheap price etc.
Disadvantages: Its strength is low in high temperature environment, it will deform with the increase of temperature, and it is not easy to recover after deformation.
2. Nickel-chromium alloy heating wire: a heating wire made of nickel and chromium.
Advantages: nickel-chromium alloy heating wire is not easy to deform under high temperature use, its structure is not easy to change, its plasticity is good, it is easy to repair, its emissivity is high, no magnetism, strong corrosion resistance, long service life, etc.
Disadvantages: Because it is made of rarer nickel metal materials, the price is several times more expensive than iron-chromium-aluminum alloy heating wires.
The above are the types and characteristics of the two commonly used electric heating element on industrial equipment. For more questions about electric heating element, please contact us.
