0769-23388351
Toggle Navigation
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 multi-pole ferrite magnetic assembly, composed of injection molded ferrite + shaft, also known as injection molded ferrite magnetic rotor magnet, rotor OD 29.8mm, height 7.5mm, shaft 3.17mm...
Product Name: 6x6mm cylindrical neodymium magnet, Color: silver white, Manufacturer: courage magnet, N35 is about 4100 Gauss, and n52 is about 4800 Gauss, We have a great price advantage in the production of high-performance magnets. We look forward to your consultation!...
This product is a small magnet, made of neodymium with galvanized surface. How small are these magnets? 5mm, 8mm in length, 2mm in width, 2.5mm in width, 1mm in thickness, 1.5mm in thickness, if you are interested in such small neodymium block magnets, you can tell us the size you actually need, and...
You are now viewing a ceramic ferrite ring magnet with 60mm bore (center hole), 120mm outer diameter, 20mm thickness, medium to large size magnet, no plating on surface, especially suitable for speakers, horns, salvage, fishing, and mechanical equipment,...
Introduction of small size ring neodymium magnet; Product name: Nickel-plated strong neodymium small ring magnet，Performance level: N35 (can be customized for higher performance)，Product size: 8mm diameter, 2mm thickness, 4mm middle hole...
This is a thin rectangular block neodymium magnet, the specific specifications are length 40mm, width 25mm, thickness 1.5mm, strong magnetic force, N35 grade, magnetized in the thickness direction, suitable for ceiling lamps, crafts, home furnishing, electronic products, can be matched with 3M back glue to use....
This is a small size ring rare earth magnet, N38M grade, the outer diameter of the ring is 11mm, the hole is 2mm, which is also relatively small, the thickness is 5mm, the surface is plated with bright nickel, this type of magnet is suitable for passing through some thin shafts....
This is a very hot neodymium round magnet size, diameter 10mm, thickness 2mm, in many areas can be applied, the only difference is that different customers choose the coating, performance level and temperature resistance performance on the difference, the magnet weighs about 1.2g....