Otu esi eme magnet neodymium

Anyị ga-akọwa etu o si meeIgwe ndọta NdFeBe ji nkọwa dị mfe mee ya. Magnetị neodymium bụ magnet na-adịgide adịgide nke e ji neodymium, iron, na boron mee iji mepụta nhazi kristal tetragonal nke Nd2Fe14B. A na-eji vacuum kpoo obere ihe ndị dị n'ime ọkụ dị ka ihe ndị e ji eme ihe. Mgbe anyị nwetasịrị ihe ndị e ji eme ihe, anyị ga-eme usoro itoolu iji mepụta magnet NdFeB ma mechaa mepụta ngwaahịa emechara.

Kwadebe ihe maka imeghachi omume, ịgbaze, igwepịa, ịpịa ihe, ime ka ihe dị ọcha, ime ihe, itinye ihe mkpuchi, ime ka magnetization na inyocha.

Kwadebe ihe maka mmeghachi omume

Ụdị kemịkalụ nke magnet neodymium bụ Nd2Fe14B.

Magnet na-abụkarị ọgaranya na Nd na B, magnet ndị emechara emecha na-enwekarị ebe Nd na B na-abụghị magnetik n'ime ọka, nke nwere nnukwu mkpụrụ Nd2Fe14B. magnetik. Enwere ike itinye ọtụtụ ihe ndị ọzọ dị ụkọ n'ụwa iji dochie neodymium: dysprosium, terbium, gadolinium, holmium, lanthanum, na cerium. Enwere ike itinye ọla kọpa, cobalt, aluminom, gallium na niobium iji melite ihe ndị ọzọ nke magnet. Ọ bụ ihe a na-ejikarị eme ihe ma Co na Dy ọnụ. A na-etinye ihe niile iji mepụta magnet nke ọkwa ahọpụtara n'ime ọkụ induction vacuum, kpoo ọkụ ma gbazee iji mepụta ihe alloy.

Agbaze

A chọrọ ka agbaze ihe ndị e ji mee ihe ndị a n'ime ọkụ induction vacuum iji mepụta ihe mgbakwunye Nd2Fe14B. A na-ekpo ọkụ ngwaahịa a site n'ịmepụta vortex, ihe niile dị n'okpuru oghere iji gbochie mmetọ ịbanye na mmeghachi omume ahụ. Ihe ikpeazụ nke nzọụkwụ a bụ mpempe akwụkwọ rịbọn dị gịrịgịrị (mpempe akwụkwọ SC) nke ejiri kristal Nd2Fe14B otu mee. A ghaghị ime usoro ịgbaze ahụ n'ime obere oge iji zere oke oxidation nke ọla ala dị ụkọ.

Ịkụ ihe

A na-eji usoro igwe egweri nke nwere nzọụkwụ abụọ eme ihe n'ọrụ mmepụta ihe. Nzọụkwụ mbụ, nke a na-akpọ hydrogen detonation, gụnyere mmeghachi omume dị n'etiti hydrogen na neodymium na alloy ahụ, na-agbaji flakes SC ka ọ bụrụ obere ihe. Nzọụkwụ nke abụọ, nke a na-akpọ jet milling, na-eme ka ụmụ irighiri ihe Nd2Fe14B bụrụ obere ihe, nke dị na dayameta site na 2-5μm. Igwe egweri jet na-ebelata ihe si na ya pụta ka ọ bụrụ ntụ ntụ nke obere nha ụmụ irighiri ihe. Nkezi nha ụmụ irighiri ihe dị ihe dị ka microns 3.

Ịpị

A na-etinye ntụ ntụ NdFeB n'ime ihe siri ike n'ụdị achọrọ n'ime ebe ndọta siri ike. Ihe siri ike a kpọchiri akpọchi ga-enweta ma nọgide na-enwe ebe ndọta a họọrọ. N'usoro a na-akpọ die-upsetting, a na-etinye ntụ ntụ ahụ n'ime ihe siri ike n'ime ihe ndọta na ihe dị ka 725°C. A na-etinye ihe siri ike ahụ n'ime ebu nke abụọ, ebe a na-agbanye ya n'ụdị sara mbara, ihe dị ka ọkara nke ịdị elu mbụ ya. Nke a na-eme ka ntụziaka ndọta a họọrọ yie nke na-adakọ na ntụziaka mwepụta. Maka ụfọdụ ụdị, enwere ụzọ ndị gụnyere ihe njide nke na-emepụta ebe ndọta n'oge ịpị iji dozie ihe ndị ahụ.

Sintering

A ga-etinye ihe siri ike NdFeB a pịrị apị ka ha wee mepụta ihe mgbochi NdFeB. A na-apịachi ihe ahụ n'okpomọkụ dị elu (ruo 1080°C) n'okpuru ebe agbaze ihe ahụ ruo mgbe ihe ndị ahụ na-arapara n'ahụ ibe ha. Usoro ịgbaze ihe ahụ nwere usoro atọ: ịgbaze mmiri, ịgbaze mmiri na ịgbaze mmiri.

Ịrụ ọrụ igwe

A na-eji usoro ịkpụcha ihe na-eme ka magnet ndị a kpụọ n'ụdị na nha achọrọ. Ọ naghị adịkarị mfe, a na-emepụta ụdị ndị dị mgbagwoju anya a na-akpọ ọdịdị ndị na-adịghị mma site na iji igwe eletriki (EDM). N'ihi oke ọnụ ahịa ihe, a na-ebelata mfu ihe onwunwe n'ihi igwe. Teknụzụ Huizhou Fullzen dị mma nke ukwuu n'ịmepụta magnet ndị na-adịghị mma.

Ịkwado/Mkpuchi

NdFeB nke a na-ekpuchighị ekpuchi na-emebi emebi nke ukwuu ma na-efunahụ magnetism ya ngwa ngwa mgbe mmiri dị mmiri. Ya mere, magnet neodymium niile dị maka azụmahịa chọrọ mkpuchi. A na-ekpuchi magnet nke ọ bụla n'ime akwa atọ: nickel, ọla kọpa na nickel. Maka ụdị mkpuchi ndị ọzọ, biko pịa "Kpọtụrụ Anyị".

Ịmegharị magnet

A na-etinye magnet ahụ n'ime ihe nkwụnye ọkụ nke na-ekpughe magnet ahụ na ebe ndọta siri ike ruo obere oge. N'ụzọ bụ isi, ọ bụ nnukwu eriri e ji kechie magnet. Ngwaọrụ magnet na-eji capacitor bank na voltaji dị elu iji nweta ọkụ eletrik siri ike n'ime obere oge.

Nnyocha

Lelee ịdị mma nke magnet ndị a na-enweta maka njirimara dị iche iche. Ihe ngosi nha dijitalụ na-enyocha nha. Sistemụ nha ọkpụrụkpụ mkpuchi site na iji teknụzụ X-ray fluorescence na-enyocha ọkpụrụkpụ nke mkpuchi. Nnwale mgbe niile na nnwale mmiri nnu na nrụgide na-egosikwa arụmọrụ nke mkpuchi ahụ. Maapụ hysteresis na-atụ usoro BH nke magnet ndị ahụ, na-akwado na ha nwere magnet zuru oke, dịka a tụrụ anya ya maka klas magnet.

N'ikpeazụ, anyị nwetara ngwaahịa magnet zuru oke.