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The magnetization of ferromagnetic materials

Ferromagnetic (or magnetically conductive) materials such as iron and steel and their alloys can very easily become magnetic. Depending on the type of material or alloy, the product may remain magnetic; this is referred to as remanent magnetism. Even non-ferrite stainless steel can become magnetized as a result of deformation or welding.

magnetism by deformation or welding
Magnetic Slide Conveyor


In that case, the induced magnetism often originates from other magnetic sources, such as lifting magnets, clamping tables, loudspeakers or magnetic transport systems. Magnetic fields near transformers, welding cables and welding processes can also induce magnetism. Even certain processes, such as drilling, grinding, sawing and polishing of the material, can result in remanent magnetism. As mentioned above, this can even occur in stainless steel.

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Lorsqu'un matériau magnétique est comprimé dans un champ magnétique, on dit qu'il a une préférence d'orientation, qu'il est anisotrope. La magnétisation d'un matériau magnétique anisotrope ne peut avoir lieu que dans l'orientation de préférence.

Matériaux magnétiques


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Aimants Néodyme (Neoflux®)

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