When Magnesy neodymowe closed state in a magnetic field to the outside

When Magnesy neodymowe closed state in a magnetic field to the outside via a saturated , then undo the external magnetic field , the magnetic polarization J Magnesy neodymowe internal magnetic induction B does not disappear due to the external magnetic field H and disappear, but will maintain a certain size value, which is called the residual magnetic material

Polarization Jr and residual magnetic flux density Br, collectively remanence . Remanence Jr and Br units and magnetic intensity and magnetic induction of the same unit .

According to the relationship ( 1-1 ), in the demagnetization curve on Magnesy neodymowe , when the magnetic field H 0, Jr = Br, the magnetic field H is negative , J and B are not equal, then divided into two JH and BH curve . From the relation ( 1-1 ) can also be seen that with the increase of the reverse magnetic field H , B changes from the maximum value to 0 Br = Jr , finally the negative variation of the modern Magnesy neodymowe, B demagnetization curve often straight ; variation of the demagnetization curve J is different : with the reverse magnetic field H , B decreases linearly due to the reduced amount of B is always greater than or equal to the value of the reverse magnetic field H of the amount of increase , so can be kept within a certain area on the relatively flat demagnetization curve J straight line , but is always less than the value J Jr.

What is the coercive force (bHc), what is the intrinsic coercivity (jHc)?

On Magnesy neodymowe demagnetization curve , when the reverse magnetic field H is increased to a value bHc, magnet magnetic induction B is 0, the magnetic field H is called the reverse bHc coercivity of the material ; reverse magnetic field H = bHc when the external magnetic flux does not show , so the coercivity bHc characterization Magnesy neodymowe reverse resistance to external magnetic fields or other demagnetization effects. Coercivity bHc is one of the important parameters of the magnetic circuit design.

The latest news:
The international standard and the properties of sintered ferrite magnets from Neodymium magnet factory
How long will the production of Neodymium iron boron magnet from Neodymium magnet factory be required?
What is the reason Imanes de NdFeb drastic changes in the price?
About how long it takes Imanes de NdFeb production process it?
The future market development space is broad for magnesy neodymowe