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Safety

Warning for magnetic field

DANGER FOR MAGNETIC FIELD !

Neodymium-iron-borion (Nd-Fe-B) magnets, sold by Goudsmit under the brand name Neoflux®, should always be handled carefully. Neodymium magnets smaller than a penny yet powerful enough to lift over 10 kilograms! These magnets are dangerous, as they can pinch the skin or fingers when suddenly attracted to iron or steel. Neodymium magnets are made with special powders and coatings and are therefore brittle and easily broken, especially at temperatures above 150 °C or when they slam together. When they break, this occurs so suddenly and violently that flying pieces may cause eye or other injuries.

 

Neodymium magnets should also be kept far from electrical appliances, magnetic cards, CRT monitors, pacemakers, watches and similar items as such items may be permanently damaged by the strong magnetic field.

Some prohibition and danger signs that you might see or place yourself in the neigbourhood of strong magnetic fields :

 

Warning for magnetic field (alternative)
Warning for magnetic field (alternative)
Prohibited for people with pacemakers

 

Prohibited for people with metallic implants
Do not carry magnetic or electronic media
Do not carry metallic parts for watches

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Anisotroop

Wanneer magneetmateriaal in een magneetveld geperst wordt, noemt men het magneetmateriaal voorkeursgericht en anisotroop. Het magnetiseren van anisotroop magneetmateriaal kan alleen in de voorkeursrichting plaatsvinden.

Magneetmaterialen

Ferriet
magneten
 

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Neodymium (Neoflux®) magneten

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Samarium-kobalt magneten

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Aluminium-nikkel-kobalt magneten

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Kunststof gebonden magneten

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