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  Ferrite, a permanent magnet material which is the most widely used, is manufactured with powder metallurgic method, is mainly divided into Ba and Sr, is divided into anisotropy and isotropy, and is a permanent magnet material which is difficult to demagnetize and corrode. Its maximum working temperature can reach 250℃. It is relatively solid and brittle, can be cut and processed with diamond sand and other tools, and is molded with mold processed by the diamond once. Such product is widely applied in such fields as permanent magnet motor and speaker.

 

  • Introduction
  • Physical property
  • Diagram
  • Magnetic
  • Production process
  • Application
  • ●It is manufactured with powder metallurgic method.

    ●It is relatively solid and brittle.

    ●It is difficult to demagnetize.

    ●It has good corrosion resistance.

    ●The price is low and the resource is rich.

    ●It has good temperature stability.

    ●It is the permanent magnet used the most widely.

  • Project Unit Parameter range
    Curie temperature   450
    Maximum working temperature   250
    Hardness Hv 480-580
    Density g/cm 4.8-4.9
    Recoil permeability rec 1.05-1.20
    Saturation magnetization kOe 10
    kA/m 800
    Temperature coefficient of remanence %/ -0.2
    Temperature coefficient of intrinsic coercivity %/ 0.3
    Tensile strength N/mm <100
    Transverse strength N/mm 300



  •  
  • Magnetic material Other party / square Remanence Coercive force Intrinsic coercive force The maximum magnetic energy product
    Br Br bHc bHc iHc iHc (BH) (BH)
    (mT) (Gs) (kA/m) (Oe) (kA/m) (Oe) max(KJ/m) max(MGOe)
    Y10 Isotropic 200-235 2,000-2,350 125-160 1,570-2,010 210-280 2,640-3,520 6.5-9.5 0.8-1.2
    Y25 Anisotropic 360-400 3,600-4,000 135-170 1,700-2,140 140-200 1,760-2,510 22.5-28.0 2.8-3.5
    Y30 Anisotropic 370-400 3,700-4,000 175-210 2,200-2,640 180-220 2,260-2,770 26.0-30.0 3.3-3.8
    Y30BH Anisotropic 380-400 3,800-4,000 230-275 2,890-3,460 235-290 2,950-3,650 27.0-32.5 3.4-4.1
    Y33 Anisotropic 410-430 4,100-4,300 220-250 2,770-3,140 225-255 2,830-3,210 31.5-35.0 4.0-4.4
    Y35 Anisotropic 400-420 4,000-4,200 160-190 2,010-2,380 165-195 2,070-2,450 30.0-33.5 3.8-4.2
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