Iimagnethi zeNeodymium zezona magnethi zingcono kakhulu ezithengiswayo, naphi na emhlabeni, ukumelana ne-demagnetization xa kuthelekiswa neemagnethi zeferrite, alnico kwane-samarium-cobalt.
✧ Iimagnethi zeNeodymium vs iimagnethi zeFerrite eziqhelekileyo
Iimagnethi zeFerrite ziimagnethi zezinto ezingezizo ezesinyithi ezisekelwe kwi-triiron tetroxide (umlinganiselo ozinzileyo wobunzima be-iron oxide kwi-ferrous oxide). Eyona ngxaki iphambili yezi magnethi kukuba azinakudalwa ngokuthanda kwazo.
Iimagnethi zeNeodymium azinawo nje amandla agqwesileyo emagnethi, kodwa zikwanazo neempawu ezilungileyo zoomatshini ngenxa yokudibana kweentsimbi, kwaye zinokucutshungulwa ngokulula zibe ziimo ezahlukeneyo ukuze zihambelane neemfuno ezahlukeneyo. Ingxaki kukuba iimonomers zesinyithi kwiimagnethi zeNeodymium kulula ukuzigqwala kwaye zonakale, ngoko ke umphezulu udla ngokugqunywa yi-nickel, i-chromium, i-zinc, i-tin, njl.njl. ukuthintela ukugqwala.
✧ Ukwakheka kwemagnethi ye-neodymium
Iimagnethi zeNeodymium zenziwe nge-neodymium, isinyithi kunye ne-boron ezidityaniswe kunye, zihlala zibhalwa njenge-Nd2Fe14B. Ngenxa yokwakheka okuzinzileyo kunye nokukwazi ukwenza iikristale ze-tetragonal, iimagnethi ze-neodymium zinokuthathwa nje ngokwembono yeekhemikhali. Ngo-1982, uMakoto Sagawa weSumitomo Special Metals wavelisa iimagnethi ze-neodymium okokuqala. Ukususela ngoko, iimagnethi zeNd-Fe-B ziye zasuswa kancinci kwiimagnethi ze-ferrite.
✧ Zenziwa njani iimagnethi ze-neodymium?
INYATHELO 1- Okokuqala, zonke izinto zokwenza umgangatho okhethiweyo wemagnethi zifakwa kwi-vacuum cleaner induction furnace, zifudunyezwe kwaye zinyibilikiswe ukuze kuphuhliswe imveliso ye-alloy. Lo mxube uyapholiswa ukuze kuphuhliswe ii-ingots ngaphambi kokuba ucolwe ube ziinkozo ezincinci kwi-jet mill.
INYATHELO 2- Emva koko umgubo ocolekileyo kakhulu ucinezelwa kwisikhunta kwaye kwangaxeshanye amandla emagnethi asetyenziswa kwisikhunta. Imagnethi ivela kwikhoyili yentambo esebenza njengemagnethi xa umbane udlula kuyo. Xa isakhelo se-particle yemagnethi sihambelana nemiyalelo yemagnetism, oku kubizwa ngokuba yimagnethi ye-anisotropic.
INYATHELO 3- Asikokuphela kwenkqubo, endaweni yoko, okwangoku izinto ezisebenzisa imagnethi azinamagnethi kwaye ngokuqinisekileyo ziya kuba nemagnethi kamva ngelixa kusenziwa njalo. Inyathelo elilandelayo kukuba izinto zifudunyezwe, phantse zide zinyibilike kwinkqubo ebizwa ngokuba yi-Inyathelo elilandelayo kukuba imveliso ifudunyezwe, phantse ide ifikelele kwinqanaba lokunyibilika kwinkqubo ebizwa ngokuba yi-sintering eyenza ukuba iibhithi zemagnethi ezicoliweyo zihlangane. Le nkqubo yenzeka kwindawo engenaoksijini, engenamandla.
INYATHELO 4- Phantse apho, izinto ezishushu zipholiswa ngokukhawuleza kusetyenziswa indlela eyaziwa ngokuba kukucima. Le nkqubo yokuphola ngokukhawuleza inciphisa iindawo ezinemagnethi embi kwaye ikwanyusa ukusebenza.
INYATHELO 5- Ngenxa yokuba iimagnethi ze-neodymium ziqinile, nto leyo eyenza ukuba zibe sengozini yokonakalisa, kufuneka zigqunywe, zicocwe, zomiswe, kwaye zifakwe ipleyiti. Kukho iintlobo ngeentlobo zokugqiba ezisetyenziswa kwiimagnethi ze-neodymium, enye yezona ziqhelekileyo yi-nickel-copper-nickel mix kodwa zinokugqunywa ngezinye izinyithi kunye nerabha okanye i-PTFE.
INYATHELO 6- Nje ukuba iplastiwe, imveliso egqityiweyo iphinda itshatiswe ngokuyifaka ngaphakathi kwikhoyili, ethi, xa umbane udlula kuyo ivelise amandla emagnethi anamandla aphindwe kathathu kunobunzima obufunekayo bemagnethi. Le yinkqubo esebenzayo kangangokuba ukuba imagnethi ayigcinwanga kwindawo yayo inokuphoswa kwikhoyili njengembumbulu.
I-AH MAGNET ngumvelisi ovunyiweyo yi-IATF16949, ISO9001, ISO14001 kunye ne-ISO45001 weentlobo ngeentlobo zeemagnethi ze-neodymium ezisebenza kakuhle kunye neendibano zemagnethi ezinamava angaphezu kweminyaka engama-30 kweli candelo. Ukuba unomdla kwiimagnethi ze-neodymium, nceda unxibelelane nathi!
Ixesha lokuthumela: Novemba-02-2022