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MAGNET

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(주)에스제이정밀의 마그넷 사업부를 안내합니다.

주요고객사  보유설비  기술자료 

컨텐츠 영역

SmCo 자석 (Sintered)

Process Flow Chart for Samarium Cobalt Magnet

  • Raw
    Material
  • Melting
    & Alloying
  • Coase
    Pulverizing
  • Fine
    Pulverizing
  • Pressing in
    Magnetic
    Field
  • Sintering
  • Machining
  • SmCo
  • Magnetization

Typical Magnetic Performance for Samarium Cobalt Magnet

This special SmCo Magnets mainly apply to magnetic suspension bearings, precision sensor, special motors, instruments and microwave electron tube, etc.

  • Sm2Co17
    • Curie Temperature
    • 800 ~ 850℃
    • Density
    • 8.4 g/㎤
    • Thermal expansion coefficient
    • C//8×10-6 ℃, Cㅗ 11×10-6
    • Thermal conductivity
    • 10 kcal/mhr℃
    • Specific heat
    • 8×10-2 Cal/g ℃
    • Specific resistivity
    • 8.6×10-5 Ω.㎝
    • Deflection strength
    • 15 ㎏/㎟
    • Compressive strength
    • 82 ㎏/㎟
    • Tensile strength
    • 3.6 ㎏/㎟
    • Vickers hardness
    • 500 ~ 600 Hv
  • Sm2Co5
    • Curie Temperature
    • 700 ~ 750℃
    • Density
    • 8.3 g/㎤
    • Thermal expansion coefficient
    • C//6×10-6 ℃, Cㅗ 13×10-6
    • Thermal conductivity
    • 11 kcal/mhr℃
    • Specific heat
    • 9×10-2 Cal/g ℃
    • Specific resistivity
    • 5.3×10-5 Ω.㎝
    • Deflection strength
    • 18 ㎏/㎟
    • Compressive strength
    • 102 ㎏/㎟
    • Tensile strength
    • 4.1 ㎏/㎟
    • Vickers hardness
    • 450 ~ 500 Hv

Typical Magnetic Characteristics for SmCo Magnets

Sm2Co17
  • Br
  • Hcb
  • Hcj
  • BHmax
Grade Br T (kGs) Hcb KA/m (kOe) Hcj KA/m (kOe) Bhmax KJ/m3 (MGOe)
XG 22/25 0.97±0.03(9.7) 752±32(9.4) ≥2000(≥25) ≥176(≥22)
22/30 ≥2240(≥28)
22/35 ≥2560(≥32)
XG 24/25 1.03±0.03(10.3) 768±32(9.6) ≥2000(≥25) ≥192(≥24)
24/30 ≥2240(≥28)
24/35 ≥2560(≥32)
XG 26/10 1.06±0.03(10.60) 640±40(8) ≥800(≥10) ≥200(≥25)
26/16 ≥1120(≥14)
26/20 ≥1440(≥18)
26/25 1.08±0.03(10.8) 784±40(9.8) ≥1760(≥22)
26/30 ≥2080(≥26)
26/35 ≥2560(≥32)
XG 28/16 1.10±0.03(11) 800±48(10) ≥1040(≥13) ≥216(≥27)
28/20 ≥1360(≥17)
28/25 ≥1760(≥22)
28/30 ≥2080(≥26)
28/35 ≥2560(≥32)
XG 30/12 1.13±0.03(11.3) 760±48(9.5) ≥800(≥10) ≥232(≥29)
30/15 ≥1040(≥13)
30/18 ≥1280(≥16)
30/20 ≥1440(≥18)
XG 32/12 1.15±0.03(11.5) 760±48(9.5) ≥800(≥10) ≥248(≥31)
32/15 ≥1040(≥13)
32/18 ≥1200(≥15)
Sm2Co5
  • Br
  • Hcb
  • Hcj
  • BHmax
Grade Br T (kGs) Hcb KA/m (kOe) Hcj KA/m (kOe) Bhmax KJ/m3 (MGOe)
XG 18/18 0.86±0.03(8.6) 664±24(8.3) ≥1360 (≥17) ≥136(≥17)
18/20 ≥1520(≥19)
18/25 ≥2000(≥25)
XG 20/18 0.90±0.03(9.0) 688±24(8.6) ≥1360 (≥17) ≥152(≥19)
20/20 ≥1520(≥19)
20/25 ≥2000(≥25)
XG 22/15 0.95±0.03(9.5) 720±32(9.0) ≥1120(≥14) ≥168(≥21)
22/18 ≥1280(≥16)
22/20 ≥1520(≥19)
XG 24/15 1.00±0.03(10) 760±32(9.5) ≥1040(≥13) ≥184(≥23)
24/18 ≥1200(≥15)