How to shield or insulate magnetic field?

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Soft magnetic material can be used in shielding or insulating magnetic field, like the common steel or iron plate. Thickness of the plate should be considered carefully because too thin plate may be saturated and can only duct a part of flux of the field, that will make the shielding only partially, not fully. Permeability, size and shape will be the main factors to be considered when selecting the shielding material. 11.What are the cautions during operating or handling magnets? Sintered NdFeB magnet is very brittle but hard. Its magnetic field is very powerful that can generate a force of 600 times of its weight. Caution should be to handle the magnet to avoid any damages to human body or the magnet itself. Some necessary protection method should be adopted when handling big block magnets. During installation, some fixture must be needed.12.Can NdFeB magnets be drilled and machined? Not easily or safely. Nd-Fe-B sintered magnets behave like a ceramic. They have tendency to crack ... more
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