Ntev Samarium Cobalt lub tog raj kheej hlau nplaum muab lub siab -coercivity tsis tshua muaj -lub ntiaj teb kev daws rau siab- kub thiab hnyav-ib puag ncig cov rooj sib txoos uas cov pa Neodymium lwm txoj kev raug kev txom nyem los ntawm thermal flux poob. Fabricated siv high -purity Samarium thiab Cobalt raw cov ntaub ntawv, cov elongated magnetic Cheebtsam tswj cov qauv thiab sib nqus kev ncaj ncees mus txog 350 degree.
Alloy Classifications:Muaj nyob rau hauv SmCo5 (1: 5 series) rau siab intrinsic coercivity thiab Sm2Co17 (2:17 series) rau siab tshaj plaws zog khoom ntawm siab kub.
Lub hnab ntawv Dimensional:Txoj kab uas hla los ntawm 2 mm mus rau 50 mm nrog ntev configurations ncua mus txog 100 mm (nam piv ntau tshaj 4: 1).
Field Orientation:Txheem axial lossis kev cai diametrical magnetization profiles ua raws li siab -tesla sib nqus nias.
Technical Specifications
|
Khoom / Parameter |
SmCo5 (Standard Qib) |
Sm2Co17 (High - Qib Kev Ua Haujlwm) |
|
Piv txwv Qib |
YXG-24, YXG-28 |
YXG-28H, YXG-30H, YXG-32H |
|
Residual Induction (Br) |
9.0 - 10.5 kGs (0.90 - 1.05 T) |
10.5 - 12.0 kGs (1.05 - 1.20 T) |
|
Kev coercivity (Hcb) |
>= 8.0 kOe (640 kA/m) |
>= 9.5 kOe (756 kA/m) |
|
Intrinsic Coercivity (Hcj) |
>= 15.0 kOe (1194 kA/m) |
>= 25.0 kOe (1989 kA/m) |
|
Max. Zog Khoom (BH) max |
20 - 28 MGOe (160 - 223 kJ/m3) |
28 - 34 MGOe (223 - 270 kJ/m3) |
|
Max. Ua haujlwm kub |
250 degree |
300℃- 350 degree |
|
Temp. Coefficient ntawm Br (alpha) |
-0.045% / degree |
-0.030% / degree |
|
Qhov ntom |
8,4g 3 |
8,4g 3 |
Ntsiab nta
Reversible kub coefficient ntawm Br ua hauj lwm mus txog 350℃yam tsis tas mus li structural flux degradation.
Cobalt- nplua nuj matrix yuav tsum tsis muaj npib tsib xee- tooj liab-nickel plating rau cov av qis lossis ntsev- huab cua xa tawm.
High Hcj resists demagnetization teb los ntawm siab -frequency opposing rog.
2-Tesla teb nias tiv thaiv kev sib nqus axis sib txawv thoob plaws lub tog raj kheej ntev.
Daim ntawv thov
Aerospace Actuators:High - kub brushless DC motors thiab linear actuators.
Traveling -Wave Tubes (TWTs):Microwave amplification khoom.
Magnetic Couplings:Hermetically kaw twj tso kua mis rau aggressive chemical kua.
Downhole Drilling Sensors (MWD):Cov cuab yeej sau npe tshaj 200℃kev khiav hauj lwm profiles.
Kev kho kom haum
Dimensional Tolerances:
Centerless av sab nraud diameters (+/- 0.02 mm); ntev kam rau ua (+/- 0.05 mm).
Flux Calibration:
Qhib -circuit Gauss qhov pib sib piv (+/- 1% correlation).
Surface Finishes:
Unplated, Ni-Cu-Ni, los yog Parylene txheej rau siab- lub tshuab nqus tsev outgassing tswj.
Lub Xeev:
Ua ntej- magnetized los yog unmagnetized (pulse field charging fixtures muab los ntawm kev thov).
Manufacturing & Quality Control
Kev ua haujlwm ntau lawm
• Induction Vacuum Melting: Alloy formulation los ntawm siab -purity ingots.
• Nitrogen Jet Milling: Hmoov particle loj txo (3 - 5 um).
• Isostatic Pressing: 2-Tesla magnetic teb hmoov sib dhos.
• Sintering & Aging: Densification ntawm 1100℃- 1200℃tom qab los ntawm ntau-theem thermal aging.
• Precision Machining: Pob zeb diamond- lub log sib tsoo thiab xaim -EDM txiav.
Quality Verification Protocol
• Permeameter Test: Hysteresis daim duab pov thawj ntawm 20℃thiab 200℃(Br, Hcb, (BH) max).
• Laser Micrometer Screening: Concentricity thiab runout soj ntsuam.
• Flux Mapping: Internal micro- kev tshuaj ntsuam tsis muaj dab tsi (<= 1% flux density drop tolerance).
Ntim & Cov ntaub ntawv
Siab -permeability steel shielding ntim ua raws li IATA DGR txwv.
Lub tes tsho HDPE tus kheej nrog tsis yog -magnetic spacers.
Material Test Report (MTR), Certificate of Analysis (CoA), thiab Rare -Earth MSDS.
FAQ
Cim npe nrov: Tuam Tshoj ntev samarium cobalt lub tog raj kheej hlau nplaum, Tuam Tshoj ntev samarium cobalt lub tog raj kheej hlau nplaum manufacturers, lwm tus neeg, Hoobkas
