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Some knowledge about the social market introduction of the permanent magnet
With the continuous development of technology . More and more mechanical products in people's lives played a huge role. Permanent magnet is one of them , here 's look at some relevant knowledge about its introduction.
Atomic structure of the permanent magnet is rather special, atomic magnetic moment itself . General confusion molecular arrangement of these minerals affect each other to not show the magnetic sector , but consistency in the direction of the molecular arrangement in the external magnetic field as a guide , we show magnetic , also known as a magnet , iron, cobalt, nickel is the most common magnetic substance . Relatively pure metallic state permanent magnetic iron itself is not only close to the permanent magnet will produce a magnetic induction , inside the general increase in other impurity elements such as adding carbon to the magnetic stabilized.
Manufacture of permanent magnet material used , must have a high long wide hysteresis loop . Thus, when the external magnetic field is zero , can still have a relatively strong magnetization ; magnetization becomes zero if To is necessary to apply a relatively strong external magnetic field.
These are some of the permanent magnet -related presentations , you know it?
from：http://www.htmagnets.com/newsd-nid-232.html
