Heating Wire Composite Fiber Sewing Thread

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1、FeCr-Al alloy series, FeCr-Al alloy is a kind of high resistance alloy material, with high resistivity, small resistance temperature coefficient, long life of high temperature resistance, light weight, low price and other advantages, especially suitable for use in the atmosphere containing sulfur and sulfide, is the ideal heating material in industrial electric furnace, household appliances, infrared heating devices. Iron-chromium aluminum alloy contains a large amount of chromium and aluminum elements, so the alloy has excellent high-temperature oxidation performance, and its operating temperature can reach 1400 ℃, which is much higher than that of nickel-chromium and nickel-chromium-iron alloy. Due to the high content of aluminum in the alloy, the alloy has a high resistivity, with the highest value reaching 1.60μΩ-m.
Advantages: ferrochrome aluminum electric heating alloy its high use temperature, the highest use temperature up to 1400 degrees, (0Cr21A16Nb, 0Cr27A17Mo2, etc.), long service life, high surface load, good oxidation resistance, high resistivity, cheap.

2、Nickel-chromium electric heating alloy series, nickel-chromium wire is mainly chemical composition of nickel and chromium, the shape is filamentary, so it is called nickel-chromium wire. Nickel-chromium wire is also called nickel-chromium meta-wire. Nichrome wire can be divided into Nichrome garden wire, Nichrome flat wire, etc. according to the cross-sectional shape. It has high resistivity, good surface oxidation resistance, high thermal emissivity, corrosion resistance, shock resistance in the hot state, and high temperature strength, good processability and weldability, and is a material for making heating elements in chemical, metallurgical, mechanical and electrical industries and making resistance elements.
Advantages: high temperature strength than ferrochrome aluminum, high temperature use is not easy to deformation, its structure is not easy to change, plasticity is better, easy to repair, its radiation rate is high, non-magnetic, corrosion resistance, long service life.