Magnetization curve of magnetic Hengdian magnetic factory ---- Kim local NdFeB magnetic material is made of ferromagnetic material or ferrimagnetic material composition, in the role of an external magnetic field H, there must be a corresponding magnetization M or magnetic induction B, which varies with the magnetic field strength H curve is called the magnetization curve (M ~ H or B ~ H curve). Magnetization curve is generally non-linear, has two characteristics: magnetic saturation and hysteresis. That is, when the magnetic field strength H is large enough, the magnetization M reaches a certain saturation value Ms, continues to increase H, Ms unchanged; and when the material reaches the saturation value of M, when the external magnetic field H is reduced to zero, M and is not set to zero, but along MsMr curve. Working state of the material corresponds to a point on the wholesale price of NdFeB M ~ H curve or B ~ H curve, this point is often called the working point. Hengdian Dongyang City, Kim Dae magnetic factory ---- magnetic soft magnetic material commonly used energy parameters initial permeability μi, maximum permeability μm, differential permeability μd, amplitude permeability μa, effective permeability μe, pulse permeability μp. Curie temperature Tc: magnetization of ferromagnetic material decreases with increasing temperature NdFeB magnetic, it reaches a certain temperature, the spontaneous magnetization disappears NdFeB manufacturers, paramagnetic, the critical temperature of Curie temperature. It identifies the upper limit temperature magnetic devices work. Loss P: hysteresis loss Ph and the eddy current loss Pe P = Ph + Pe = af + bf2 + c Pe α f2 t2 /, ρ reduce hysteresis loss Ph approach is to reduce the coercive force Hc; method to reduce eddy current loss Pe is thinning the thickness t of the magnetic material and to improve the resistivity of the material ρ. In free still air temperature relationship core loss and core: total power dissipation (mW) / surface area (cm2) NdFeB factory direct _ _ Kim Jilin NdFeB magnetic plant the best choice is provided by the large magnetic Hengdian gold plant. Hengdian Dongyang City, Kim Dae-magnetic Factory (www.jjdct.cn) strong, credible, Zhejiang Jinhua electronics, electrical products manufacturing equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Kim Dae-magnetic plant into the brilliant and you work for a better future!