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Did you know that magnets can conduct electricity? Is it possible that all magnets can conduct electricity, or only some magnets can conduct electricity? Today, Courage Magnet Xiaofu will introduce to you the things about magnets conducting electricity.
Magnets, although the name contains the word iron, but in fact magnets are not iron, they are not made of iron. Many people misunderstand this. The material composition contained in each magnet of different materials is also different, and their conductivity is also different
Our commonly used permanent magnets include rare earth neodymium magnets, ceramic ferrite magnets, samarium cobalt magnets, alnico magnets, iron chromium cobalt magnets, etc. Among these magnets, sintered ferrite magnets (hard magnets) are non-conductive, and the rest All magnets can conduct electricity.
Which magnet conducts electricity better?
Iron-nickel-cobalt magnets are more conductive, and NdFeB magnets will have better conductivity if they are electroplated with nickel-copper-nickel.
The conductivity of NdFeB magnets is related to magnet composition, sintering density and temperature. At room temperature of 20 degrees, the resistivity of NdFeB magnets is dozens of times higher than that of electromagnetic wires, that is, the conductivity is dozens of times worse. See the table below for details:
Resistivity (20 degrees) micro-ohm μΩ·cm cm
NdFeB magnet 140~160
Copper wire 1.724~1.796
Aluminum wire 2.8~2.8264
Conclusion;
Except for hard ferrite magnet, which cannot conduct electricity, the rest of permanent magnets, such as neodymium magnets, samarium cobalt magnets, alnico magnets, iron chrome cobalt magnets, etc., can conduct electricity. Magnets can conduct electricity, which is not the same principle as ordinary iron. Self-inductive current is also generated.
The above articles are organized and provided by permanent magnet suppliers courage. If you need to buy or consult some questions about magnets, you can send us an online inquiry or email.
This is a 88 motor magnet ring, is made of 10 pieces of sintered ferrite arc segmented magnet + PBT injection molded into a larger ring magnet, that is, we say 10-pole magnet ring, the magnetization method is radial inner diameter magnetization, the magnet ring bare magnetic table magnetism up to 1500 gauss。...
In addition to buying magnets from lowes magnets and home depot, you could also choose our Chinese magnet manufacturer to make an inquiry and buy in large quantity. This 4.5x4.5x0.5mm magnet is a thin square magnet, which uses the high performance N52 grade of Neodymium Iron Boron to give it a strong magnetic force...
Welcome to our Courage magnets manufacturer website, you are now seeing this is a relatively small size rare earth neodymium square magnets, length and width dimensions of 5mm, thickness of 3mm, using high-performance grade N52 made of strong magnetic strength, if necessary, we can also be processed into a smaller, thinner size suitable for you to match the application of your products, can be added with 3M adhesive backing and so on....
Product name: Threaded Neodymium Pot Magnetic Strong Magnetic Suction Cup，Product material: iron shell + NdFeB round magnet + rubber ring + epoxy glue，Diameter options: 16, 20, 25, 32, 36, 48, 60, 75mm。...
This is a magnet assembly with internal threaded holes, the exterior is made of multiple neodymium arc segmented magnets, the inner circle is a threaded hardware with strong magnetism, suitable for industrial manufacturing, motors, transmission equipment and so on....
This is a customized neodymium magnet, which is the strongest magnetic material. The shape is a cylindrical shape with a 6-sided shape. It is magnetized axially, nickel-plated and silver-white. It is not resistant to high temperature. As a professional neodymium magnet supplier, we are fully capable of processing according to your actual requirements, including size, tolerance, performance level and working temperature...
The product you see now is a thin flat ring magnet with more than 100 poles, 128 poles in the outer ring (64 N poles, 64 S poles), 126 poles in the inner ring, belongs to the double code channel multi-pole magnetic ring, the material is rubber magnet, so the magnetism is not strong, the surface magnetic strength is only a few hundred gauss....
This product is a square ceramic ferrite magnet, magnetic grade is Y30, size is length 50mm, width 50mm, thickness 25mm, thickness direction magnetization. The place of production is Dongguan, China. It is mainly used for industry, machinery and equipment, and personal experiments, if you need it Please contact us to purchase this magnet, the minimum order quantity is 10 pcs....