DIANET Vertical Magnetic Field Molding

OUTLINE

Manufactured by an integrated process extending from raw materials to finishing, our DIANET is a samarium-cobalt (SmCo) magnet offering high performance, accuracy, and quality.
DIANET used in stepping motors for wristwatches, but they are used in other, ever expanding, applications, including microelectronic parts for audio and
telecommunications devices; reflow-mounted thin, compact devices; and microelectromechanical systems (MEMS).

DIANET 縦磁場成形品  Molding Model Sample, Direction Of Magnetic Field

FEATURES

  • Superior heat resistance and reflow mountable
  • Superior corrosion resistance, without deterioration of magnetic properties
  • No processing-related deterioration of magnetic properties, thus ontributing to equipment downsizing and reduced energy consumption
  • Useful in applications having a dimensional tolerance on the scale of microns, made possible by our proprietary precision processing technology
  • Minimum magnetic characteristic variations, made possible by our proprietary manufacturing technology, thus contributing to device stabilization
  • Simple, ultra-precise compact shape, so cost performance is excellent, made possible by our proprietary near net shape processing technology

APPLICATIONS

  • Buzzer (ex: cellular phone)
  • Optical isolator
  • Inner phone
  • Receiver (ex: cellular phone)
  • Various sensors

SPECIFICATIONS

Spec Based SmCo5
1-5based
SmCo5
1-5based
SmCo5
1-5based
SmCo5
1-5based
Sm2Co17
2-17based
Magnet
(Note)
Designation DM-16 DM-18 DM-20 DM-22 DM-30
Residual magnet flux density Br(T) 0.77-0.82 0.81-0.87 0.84-0.90 0.87-0.94 1.06-1.13
Residual magnet flux density Br(G) 7700-8200 8100-8700 8400-9000 8700-9400 10600-11300
Coercive force bHc (kA/m) 597-653 621-684 629-708 637-732 477-796
Coercive force bHc (Oe) 7500-8200 7800-8600 7900-8900 8000-9200 6000-10000
Coercive force iHc (kA/m) > 716 > 696 > 676 > 637 > 557
Coercive force iHc (Oe) >9000 >8750 >8500 >8000 >7000
Maximum energy product max
BHmax(KJ/m3)
111-135 119-143 135-159 143-175 207-239
Maximum energy product max
BHmax(MGOe)
14-17 15-18 17-20 18-22 26-30
Reversible permeability (μr) 1.05 1.05 1.05 1.05 1.05
Machine Curie temperature (ºC) 700-750 700-750 700-750 700-750 800-850
Coefficient of thermal expansion
(X10-6/ºC)
8.0 8.0 8.0 8.0 9.8
Density (g/m3) 8.2-8.5 8.2-8.5 8.2-8.5 8.2-8.5 8.3-8.5
Hardness (HV) >530 >530 >530 >530 >550
Stiffness (Kg/mm2) 19±2 19±2 19±2 19±2 16±2
Electric Resistance (Ω•m) 0.8X10-6 0.8X10-6 0.8X10-6 0.8X10-6 0.8X10-6
Characteristic DM16 B-H DM18 B-H DM20 B-H DM22 B-H DM30 B-H

Note) Magnetic characteristics may be changed depending upon customer’s specified dimensions and shape.
For details, please contact us.