Cov hlau nplaum neodymium yog cov hlau nplaum zoo tshaj plaws uas tsis rov qab tau uas muag hauv khw, txhua qhov chaw hauv ntiaj teb. Nws tiv taus demagnetisation thaum piv rau ferrite, alnico thiab txawm tias samarium-cobalt hlau nplaum.
✧ Neodymium hlau nplaum VS cov hlau nplaum ferrite
Ferrite hlau nplaum yog cov hlau nplaum uas tsis yog xim hlau raws li triiron tetroxide (tsawg loj piv ntawm hlau oxide rau ferrous oxide). Lub ntsiab qhov tsis zoo ntawm cov hlau nplaum no yog tias lawv tsis tuaj yeem forged ntawm lub siab nyiam.
Neodymium hlau nplaum tsis tsuas yog muaj lub zog sib nqus zoo heev, tab sis kuj muaj cov khoom siv kho tshuab zoo vim yog cov fusion ntawm cov hlau, thiab tuaj yeem ua tau yooj yim ua ntau yam duab kom haum rau ntau yam kev xav tau. Qhov tsis zoo yog tias cov hlau monomers hauv cov hlau nplaum neodymium yog ib qho yooj yim rau xeb thiab deteriorate, yog li qhov saum npoo kuj feem ntau plated nrog npib tsib xee, chromium, zinc, tin, thiab lwm yam los tiv thaiv xeb.
✧ Kev sib xyaw ntawm neodymium hlau nplaum
Neodymium hlau nplaum yog ua los ntawm neodymium, hlau thiab boron fused ua ke, feem ntau yog sau li Nd2Fe14B. Vim yog qhov ruaj khov muaj pes tsawg leeg thiab muaj peev xwm tsim cov tetragonal muaju, cov hlau nplaum neodymium tuaj yeem txiav txim siab los ntawm cov tshuaj lom neeg pom. 1982, Makoto Sagawa ntawm Sumitomo Tshwj Xeeb Hlau tsim neodymium hlau nplaum thawj zaug. Txij thaum ntawd los, Nd-Fe-B hlau nplaum tau maj mam tshem tawm ntawm cov hlau nplaum ferrite.
✧ Cov hlau nplaum neodymium ua li cas?
KAUJ RUAM 1- Ua ntej tshaj plaws, txhua yam khoom siv los ua qhov zoo ntawm cov hlau nplaum raug muab tso rau hauv lub tshuab nqus tsev induction, cua sov thiab yaj kom tsim cov khoom sib xyaw. Cov khoom sib xyaw no tom qab ntawd txias kom tsim cov ingots ua ntej raug zom ua cov noob me me hauv lub tshuab cua.
KAUJ RUAM 2- Cov hmoov zoo heev ces raug nias rau hauv pwm thiab tib lub sijhawm lub zog sib nqus tau siv rau pwm. Kev sib nqus los ntawm ib lub kauj ntawm cov xov hlau uas ua haujlwm ua lub hlau nplaum thaum lub zog hluav taws xob hla dhau nws. Thaum lub cev ntawm cov hlau nplaum phim cov lus qhia ntawm kev sib nqus, qhov no hu ua hlau nplaum anisotropic.
KAUJ RUAM 3- Qhov no tsis yog qhov kawg ntawm cov txheej txheem, hloov pauv, lub sijhawm no cov khoom siv hlau nplaum yog demagnetized thiab yuav raug magnetised tom qab thaum ua li ntawd. Cov kauj ruam tom ntej yog rau cov khoom yuav tsum tau rhuab mus, xyaum mus txog melting point nyob rau hauv ib tug txheej txheem hu ua Cov nram qab no kev txiav txim yog rau cov khoom yuav tsum tau rhuab, yuav luag txog thaum melting point nyob rau hauv ib tug txheej txheem hu ua sintering uas ua rau cov hmoov hlau nplaum fuse ua ke. Cov txheej txheem no tshwm sim hauv qhov chaw tsis muaj oxygen, tsis muaj zog.
KAUJ RUAM 4- Zoo nyob ntawd, cov khoom siv cua sov tau txias sai heev uas siv txoj kev hu ua quenching. Txoj kev ua kom txias sai sai no txo qhov chaw ntawm cov hlau nplaum tsis zoo thiab tseem ua rau muaj kev ua tau zoo.
KAUJ RUAM 5- Vim tias cov hlau nplaum neodymium nyuaj heev, ua rau lawv muaj kev cuam tshuam rau kev puas tsuaj thiab kev puas tsuaj, lawv yuav tsum tau coated, ntxuav, qhuav tawm, thiab kuj plated. Muaj ntau ntau hom kev ua tiav uas tau siv los ntawm cov hlau nplaum neodymium, ib qho ntawm feem ntau yog npib tsib xee-tooj liab-nickel mix tab sis lawv tuaj yeem coated rau lwm cov hlau thiab roj hmab lossis PTFE.
KAUJ RUAM 6- sai li sai tau plated, cov khoom tiav yog re-magnetised los ntawm muab tso rau hauv ib lub kauj, uas, thaum hluav taws xob tam sim no mus los ntawm nws generates ib tug hlau nplaum peb zaug ntau zog tshaj qhov tsim nyog toughness ntawm hlau nplaum. Qhov no yog ib txoj hauv kev zoo uas yog tias cov hlau nplaum tsis khaws cia rau hauv qhov chaw nws tuaj yeem cuam tshuam los ntawm lub kauj-zoo li lub mos txwv.
AH MAGNET yog IATF16949, ISO9001, ISO14001 thiab ISO45001 chaw tsim tshuaj paus ntawm txhua yam kev ua haujlwm siab neodymium hlau nplaum thiab sib nqus sib nqus nrog ntau tshaj 30 xyoo ntawm kev paub hauv kev ua haujlwm. Yog tias koj txaus siab rau neodymium hlau nplaum, thov koj xav tiv tauj peb!
Post lub sij hawm: Nov-02-2022