Cov tsev neeg hlau nplaum tsawg hauv ntiaj teb suav nrog samarium cobalt hlau nplaum (SmCo hlau nplaum), uas yog cov hlau nplaum ruaj khov heev. Cov hlau nplaum neodymium muaj zog dua SmCo hlau nplaum, txawm li cas los xij SmCo cov hlau nplaum muaj qhov kub siab tshaj qhov kub thiab txias. Lawv tuaj yeem ua haujlwm hauv ib puag ncig kub li 525 degree F (300 degree). SmCo hlau nplaum kuj muaj zog heev tiv thaiv corrosion thiab demagnetization. Rau ntau yam kev thov, SmCo hlau nplaum muaj nyob rau hauv ntau qhov ntau thiab tsawg, duab, thiab qib.
Vim lawv cov coercivity siab heev, lub ntiaj teb tsis tshua muaj SmCo countersunk nplhaib hlau nplaum yog qhov nyuaj rau demagnetize. Lub peev xwm ntawm SmCo countersunk nplhaib hlau nplaum ua haujlwm ntawm qhov kub thiab txias li 350 degrees Celsius ua rau lawv paub zoo. Feem ntau, nws yog lub ntiaj teb tsis tshua muaj cov hlau nplaum uas muaj cov hlau nplaum muaj zog. Cov ntaub ntawv SmCo yog tawv, yog li nws yuav siv cov tshuab tshwj xeeb los ua cov nplhaib sib nqus SmCo hlau nplaum. SmCo kuj muaj xws li smco bar hlau nplaum, disc hlau nplaum, thaiv hlau nplaum, lub tog raj kheej hlau nplaum, thiab arc hlau nplaum ntxiv rau countersunk SmCo hlau nplaum.
Yog tias cov hlau nplaum raug tso cai sib tsoo nrog ib leeg lossis ib qho khoom nto, qhov nkig ntawm cov hlau tuaj yeem ua rau ya chips. Feem ntau ntawm cov chaw txais nyiaj tsis paub txog lub zog ntawm samarium cobalt hlau nplaum, uas tuaj yeem ua rau cov khoom puas lossis puas. Cov kev pheej hmoo cuam tshuam nrog kev tuav cov hlau nplaum no yuav tsum qhia meej rau txhua tus neeg ua haujlwm uas tuaj yeem cuam tshuam nrog cov khoom siv no. Yog tias tsis saib xyuas, cov hlau nplaum loj SmCo countersunk tuaj yeem tsim kev phom sij. Peb ceeb toom txhua tus ntawm peb cov neeg siv khoom kom ua tib zoo tuav cov hlau nplaum countersunk SmCo.
Lub cev muaj zog
|
Lub npe Parameter |
Chav tsev |
SmCo5 |
Sm2Co17 |
|
Qhov ntom |
g/m³ |
8.2 ~ 8.4 |
8.3 ~ 8.5 |
|
Curie Kub |
degree |
700 ~ 750 |
800 ~ 850 |
|
Max. Ua haujlwm kub |
degree |
250 |
350 |
|
Kub Coefficient ntawm Br |
feem pua / degree |
-0.05 |
-0.03 |
|
Vickers Hardness |
HV |
450 ~ 500 |
550 ~600 |
|
Electronic Resistivity |
Ω.cm 10(-5) |
5 ~ 6 x 10(-5） |
8 ~ 9 x |
|
Thermal conductivity |
W/mK |
12 |
13 |
Kev kho saum npoo
|
Nto |
Txoj kev |
Yam tsawg kawg nkaus txheej thickness rau kev tiv thaiv corrosion |
Xim |
Kev tiv thaiv |
TW (degree) |
Daim ntawv thov |
|
Epoxy |
Tsis siv neeg txau txheej |
>10μm |
Dub |
Huab cua huab cua, tshuaj tsuag tshuaj, kuaj roj lom |
<200 |
Linear motors |
|
Nickel |
Galvanic |
>10μm |
Nyiaj |
Humid huab cua, kuab tshuaj, txias lubricants |
<200 |
Linear motos, me me motors |
|
NiCuNi |
Galvanic |
>10μm |
Nyiaj |
Humid huab cua, kuab tshuaj, txias lubricants |
<200 |
Linear motos, me me motors |
|
Tin |
Galvanic |
>15μm |
Silver Bright |
Humid huab cua, cov kuab tshuaj |
<160 |
Motors, sensors |
Cim npe nrov: Tuam Tshoj samarium cobalt Countersunk hlau nplaum manufacturers, lwm tus neeg, Hoobkas
