Both nickel-chromium wire and iron-chromium-aluminum wire are called electric heating wires because they are all electric resistance alloys. Among the electric heating alloy material series, nickel-chromium alloy wires are more commonly used, which have excellent characteristics and are widely used in Metallurgy, household appliances, machinery manufacturing industry, etc. as heating elements and electrical industry as resistance materials. What are the advantages of nickel-chromium alloy wire?
First of all, we need to understand the superiority of nickel-chromium alloy wire:
1. High temperature and high strength Ni-Cr alloy has higher high temperature strength than Fe-Cr-Al, so it is not easy to be deformed when used at high temperature, so there is a lot of room to choose the layout of components.
2. After long-term use, its plasticity is still very good, and after long-term use, it will not become brittle when cooled down. Therefore, the heating element is more reliable in use and easy to repair after damage.
3. Non-magnetic nickel-chromium alloy is non-magnetic, which is more suitable for some appliances used under low temperature. Iron-chromium-aluminum alloy must be above 600℃ to be nonmagnetic.
4. Better corrosion resistance Nickel-chromium alloys are generally more corrosion-resistant than unoxidized iron-chromium-aluminum alloys.
Weaknesses of nickel-chromium alloy wire products:
Each material product will have its weak side due to the content of its material elements and environmental factors. The weak points of nickel-chromium alloy wire are:
Nickel-chromium alloy wire is at a very high temperature (hot state) in the working state, and it is prone to oxidation reaction and burn out in the air; from the perspective of electrothermal energy conversion, the energy is lost due to the generation of visible light; electric furnace wire It is often used in a spiral state, which will produce an inductive reactance effect when energized.
