Ịghọta ihe ọmụma ihe magnetik
2022-01-11
1. Gịnị mere magnetik ji eme ihe?
Ihe ka ọtụtụ n'ime ihe mejupụtara bụ ụmụ irighiri ihe mejupụtara atom bụ nke n'aka nke ya bụ nuclei na electrons. N'ime atom, electrons na-atụgharị ma na-atụgharị gburugburu oghere, nke abụọ na-emepụta magnetism. Ma n'ọtụtụ okwu, ndị electrons na-agagharị n'ụdị ntụziaka ọ bụla, na mmetụta magnetik na-akagbu ibe ha. Ya mere, ọtụtụ ihe anaghị egosipụta magnetism n'okpuru ọnọdụ nkịtị.
N'adịghị ka ihe ferromagnetic dị ka ígwè, cobalt, nickel ma ọ bụ ferrite, ihe na-agbagharị electron nke dị n'ime nwere ike kwụ n'ahịrị n'otu oge na obere mpaghara, na-eme mpaghara magnetization na-enweghị onwe nke a na-akpọ ngalaba magnetik. Mgbe magnetized ihe ferromagnetic, ngalaba ndọta ha dị n'ime ha na-ahazi nke ọma na n'otu ụzọ ahụ, na-ewusi magnetism ike ma na-akpụ magnet. Usoro magnetization nke magnet bụ usoro magnetization nke ígwè. Ígwè magnetized na magnetik nwere mmasị dị iche iche nke polarity, na ígwè ahụ na-ejikọta ya na magnet.
2. Kedu ka esi akọwapụta arụmọrụ nke magnet?
Enwere oke arụmọrụ atọ iji chọpụta arụmọrụ magnet:
Remanent Br: Mgbe magnetized na-adịgide adịgide ka magnetized na saturation teknụzụ wee wepụ oghere ndọta dị n'èzí, a na-akpọ Br ahụ ejidere residual magnetik induction intensity.
Mmakọ Hc: Iji wedata B nke magnet na-adịgide adịgide magnetized na saturation teknụzụ ka ọ bụrụ efu, ike ndọta azụ nke achọrọ ka a na-akpọ mmanye magnetik, ma ọ bụ mmanye maka mkpụmkpụ.
Ngwaahịa ike ndọta BH: na-anọchi anya njupụta ike magnetik guzobe na oghere ikuku (ohere dị n'etiti ogwe magnetik abụọ nke magnet), ya bụ, ike magnetik static kwa otu olu nke oghere ikuku.
3. Kedu ka esi akọwapụta ihe ndọta ígwè?
A na-ekewa ihe ndọta ọla n'ime ihe ndọta na-adịgide adịgide na ihe ndọta dị nro. Ọtụtụ mgbe, a na-akpọ ihe ndị nwere coercivity intrinsic karịa 0.8kA/m ihe magnetik na-adịgide adịgide, na ihe nwere ike ime ihe na-erughị 0.8kA/m ka a na-akpọ ihe ndọta dị nro.
4. Ntụnyere ike ndọta dị iche iche nke ihe ndọta a na-ejikarị eme ihe
Ike ndọta site na nnukwu ruo obere nhazi: Ndfeb magnet, samarium cobalt magnet, aluminum nickel cobalt magnet, ferrite magnet.
5. Mmekọahụ valence ntụnyere nke ihe ndọta dị iche iche?
Ferrite: arụmọrụ dị ala na nke ọkara, ọnụahịa kacha ala, njirimara okpomọkụ dị mma, nguzogide corrosion, oke ọnụahịa arụmọrụ dị mma
Ndfeb: arụmọrụ kachasị elu, ọnụahịa ọkara, ike dị mma, adịghị eguzogide okpomọkụ dị elu na corrosion
Samarium cobalt: arụmọrụ dị elu, ọnụahịa kachasị elu, kenkuwa, njirimara okpomọkụ dị mma, nguzogide corrosion
Aluminium nickel cobalt: arụmọrụ dị ala na nke ọkara, ọnụahịa ọkara, njirimara okpomọkụ dị mma, nguzogide corrosion, nguzogide ndabichi adịghị mma
Enwere ike ime Samarium cobalt, ferrite, Ndfeb site na ijikọ na usoro njikọ. The sintering magnetik ihe onwunwe dị elu, akpụ adịghị mma, na bonding magnet dị mma na arụmọrụ na-ebelata nke ukwuu. Enwere ike ịrụpụta AlNiCo site na nkedo na ụzọ ịmegharị ihe, ndọta ndọta nwere ihe dị elu na usoro adịghị mma, na magnetik nwere ihe ndị dị ala na nhazi ka mma.
6. Njirimara nke Ndfeb magnet
Ndfeb ihe ndọta na-adịgide adịgide bụ ihe ndọta na-adịgide adịgide dabere na ngwakọta intermetallic Nd2Fe14B. Ndfeb nwere nnọọ elu magnetik ike ngwaahịa na ike, na uru nke elu ume njupụta na-eme ka ndFEB na-adịgide adịgide magnet ihe ọtụtụ-eji na oge a ụlọ ọrụ na electronic technology, nke mere na ngwá, electroacoustic Motors, magnetik nkewa magnetization akụrụngwa miniaturization, ìhè arọ, mkpa ghọọ. kwere omume.
Ihe eji eme ihe: Ndfeb nwere uru nke arụmọrụ dị elu, nke nwere njirimara ọrụ dị mma; Ihe ọghọm ya bụ na ebe okpomọkụ Curie dị ala, njirimara okpomọkụ adịghị mma, ọ dịkwa mfe iji powdery corrosion, n'ihi ya, a ghaghị imeziwanye ya site n'ịgbanwe ihe mejupụtara kemịkalụ ya na ịnakwere ọgwụgwọ elu iji mezuo ihe achọrọ nke ngwa bara uru.
Usoro nrụpụta: Nrụpụta nke Ndfeb site na iji ntụ ntụ metallurgy usoro.
Usoro eruba: batching â † 'na-agbaze ingot na-eme â†' ntụ ntụ na-eme â†'' ịpị â†' sintering tempering â†' nchọpụta magnetik â†' egweri â † 'pin ịkpụ â†' electroplating â†' Emechara ngwaahịa.
7. Gịnị bụ magnet otu akụkụ?
Magnet nwere okporo osisi abụọ, ma n'ọnọdụ ụfọdụ, ọ dị mkpa ka ọ bụrụ ihe ndọta otu pole, ya mere, anyị kwesịrị iji ígwè mee ihe na magnet, ígwè n'akụkụ akụkụ magnetik, na site na ntụgharị n'akụkụ nke ọzọ nke efere magnet, mee nke ọzọ. N'akụkụ ihe ndọta ndọta, a na-akpọkọta ihe ndọta dị otú ahụ dị ka otu magnetik ma ọ bụ ihe ndọta. Ọnweghị ihe dị ka ezigbo magnetik akụkụ.
Ihe eji eme magnetik otu akụkụ bụ n'ozuzu arc ígwè mpempe akwụkwọ na Ndfeb ike magnet, ọdịdị nke otu akụkụ magnet maka ndFEB ike magnet bụ n'ozuzu gburugburu udi.
8. Kedu ihe eji ndọta nwere otu akụkụ?
(1) A na-eji ya eme ihe na ụlọ ọrụ obibi akwụkwọ. Enwere ndọta nwere otu akụkụ na igbe onyinye, igbe ekwentị mkpanaaka, igbe ụtaba na igbe mmanya, igbe ekwentị mkpanaaka, igbe MP3, igbe achịcha ọnwa na ngwaahịa ndị ọzọ.
(2) A na-eji ya eme ihe na ụlọ ọrụ ngwaahịa akpụkpọ anụ. Akpa, akpa akpa, akpa njem, akpa ekwentị mkpanaaka, obere akpa na ngwa akpụkpọ anụ ndị ọzọ nwere ihe ndọta nwere otu akụkụ.
(3) A na-ejikarị ya eme ihe na ụlọ ọrụ na-ede akwụkwọ. Ihe ndọta nwere otu akụkụ dị na akwụkwọ ndetu, bọtịnụ ọcha, nchekwa, akara aha magnet na ihe ndị ọzọ.
9. Gịnị ka a ga-aṅa ntị n'oge njem nke magnet?
Lezienụ anya na iru mmiri dị n'ime ụlọ, nke a ga-edobe na ọkwa akọrọ. Agafela okpomọkụ ụlọ; Ojii mgbochi ma ọ bụ ọnọdụ oghere nke nchekwa ngwaahịa nwere ike kpuchie ya nke ọma na mmanụ (mmanụ zuru oke); Ngwaahịa eletrọnịkị kwesịrị ịbụ ihe mkpuchi oghere ma ọ bụ nchekwa dịpụrụ adịpụ, iji hụ na nguzogide corrosion nke mkpuchi; Ekwesịrị ijikọta ngwaahịa magnetik ọnụ ma chekwaa ya n'ime igbe ka ọ ghara ịmịpụta ahụ ọla ndị ọzọ; Ekwesịrị ịchekwa ngwaahịa magnetik na diski magnetik, kaadị magnetik, teepu magnetik, ihe nleba anya kọmputa, elekere na ihe ndị ọzọ nwere mmetụta. Ekwesịrị ichebe steeti magnetization magnet n'oge njem, ọkachasị ụgbọ njem ikuku ga-echekwarịrị kpamkpam.
10. Olee otú iji nweta ndọta kewapụrụ?
Naanị ihe nwere ike ijikọ na magnet nwere ike igbochi oghere magnetik, na ihe dị arọ karị, ka mma.
11. Kedu ihe ferrite na-eduzi ọkụ eletrik?
Arọ magnetik ferrite bụ nke magnetik conductivity ihe, kpọmkwem elu permeability, elu resistivity, n'ozuzu eji na elu ugboro, tumadi eji na electronic nkwurịta okwu. Dị ka kọmputa na TVS anyị na-emetụ kwa ụbọchị, e nwere ngwa n'ime ha.
Ferrite dị nro na-agụnye manganese-zinc na nickel-zinc wdg. Manganese-zinc ferrite magnetik conductivity dị ukwuu karịa nke nickel-zinc ferrite.
Gịnị bụ Curie okpomọkụ nke magnet ferrite na-adịgide adịgide?
A na-akọ na okpomọkụ Curie nke ferrite dị ihe dịka 450℃, na-adịkarị karịa ma ọ bụ nhata 450℃. Isi ike bụ ihe dịka 480-580. Okpomọkụ Curie nke Ndfeb magnet bụ isi n'etiti 350-370℃. Ma ojiji okpomọkụ nke Ndfeb magnet enweghị ike iru Curie okpomọkụ, okpomọkụ bụ ihe karịrị 180-200℃ magnetik onwunwe attenuated a otutu, magnetik ọnwụ bụkwa nnọọ nnukwu, furu efu ojiji uru.
13. Gịnị bụ paramita dị irè nke isi magnetik?
Cores magnetik, ọkachasị ihe ferrite, nwere akụkụ geometric dị iche iche. Iji mezuo ihe dị iche iche chọrọ imewe, a na-agbakọkwa nha nke isi ka ọ dabara na njikarịcha chọrọ. Ihe ndị a bụ isi nke dị na-agụnye parampat anụ ahụ dị ka ụzọ magnetik, mpaghara dị irè na olu dị irè.
14. Gịnị mere radius nkuku ji dị mkpa maka ikuku ikuku?
Oghere angular dị mkpa n'ihi na ọ bụrụ na nsọtụ nke isi dị oke nkọ, ọ nwere ike imebi mkpuchi nke waya n'oge usoro ikuku ziri ezi. Jide n'aka na akụkụ ndị dị na ya dị larịị. Ferrite cores bụ ihe ebu nwere ọkọlọtọ okirikiri okirikiri, na cores ndị a na-egbu maramara na deburred iji belata ịdị nkọ nke akụkụ ha. Tụkwasị na nke ahụ, a na-ese ọtụtụ cores ma ọ bụ kpuchie ọ bụghị nanị iji mee ka akụkụ ha na-agafe agafe, kamakwa iji mee ka elu ha na-ekugharị dị larịị. Isi ntụ ntụ nwere radius nrụgide n'otu akụkụ yana ọkara okirikiri n'akụkụ nke ọzọ. Maka ihe ferrite, a na-enye ihe mkpuchi ihu ọzọ.
15. Kedu ụdị isi ihe ndọta kwesịrị ekwesị maka ime mgbanwe?
Iji gboo mkpa nke isi ihe ntụgharị kwesịrị inwe ike ndọta dị elu n'otu aka ahụ, n'aka nke ọzọ iji mee ka okpomọkụ ya dị elu n'ime oke ụfọdụ.
Maka inductance, ihe ndọta magnetik kwesịrị inwe ụfọdụ oghere ikuku iji hụ na ọ nwere ọkwa nke permeability n'ihe banyere elu DC ma ọ bụ AC mbanye, ferrite na isi nwere ike ịbụ ọgwụgwọ ikuku ikuku, isi ntụ ntụ nwere oghere ikuku nke ya.
16. Kedu ụdị isi magnetik kacha mma?
Ekwesịrị ịsị na ọ nweghị azịza maka nsogbu ahụ, n'ihi na a na-ekpebi nhọrọ nke isi magnetik dabere na ngwa ngwa na ngwa ngwa, wdg, nhọrọ ihe ọ bụla na ihe ndị ahịa ga-atụle, dịka ọmụmaatụ, ụfọdụ ihe nwere ike ịhụ na ịrị elu okpomọkụ dị ntakịrị, ma ọnụahịa dị oke ọnụ, ya mere, mgbe ịhọrọ ihe megide oke okpomọkụ, ọ ga-ekwe omume ịhọrọ oke ibu ma ihe nwere ọnụ ala dị ala iji mezue ọrụ ahụ, ya mere nhọrọ nke ihe kachasị mma na ngwa chọrọ. maka inductor ma ọ bụ ihe ntụgharị mbụ gị, site na nke a, ugboro ole na-arụ ọrụ na ọnụ ahịa bụ ihe ndị dị mkpa, dị ka nhọrọ kachasị mma nke ihe dị iche iche na-adabere na ngbanwe ugboro ugboro, okpomọkụ na njupụta magnetik.
17. Gịnị bụ mgbanaka magnetik mgbochi nnyonye anya?
Mgbanaka ndọta mgbochi nnyonye anya ka a na-akpọkwa mgbanaka magnetik ferrite. Oku isi iyi mgbochi nnyonye anya magnetik mgbanaka, bụ na ọ nwere ike na-arụ ọrụ nke mgbochi nnyonye anya, ka ihe atụ, eletrọnịkị ngwaahịa, site n'èzí nsogbu mgbaàmà, mbuso agha nke electronic ngwaahịa, electronic ngwaahịa natara n'èzí nsogbu mgbaama nnyonye anya, ọ bụghị e. ike na-agba ọsọ nkịtị, na mgbochi nnyonye anya magnetik mgbanaka, dị nnọọ nwere ike inwe ọrụ a, ọ bụrụhaala na ngwaahịa na mgbochi nnyonye anya magnetik mgbanaka, ọ nwere ike igbochi n'èzí nsogbu mgbaàmà n'ime electronic ngwaahịa, Ọ nwere ike ime ka ngwá electronic na-agba ọsọ nkịtị na na-egwu mmetụta mgbochi nnyonye anya, ya mere a na-akpọ ya mgbanaka magnetik mgbochi.
A na-akpọkwa mgbanaka magnetik na-egbochi nnyonye anya dị ka mgbanaka magnetik ferrite, n'ihi na mgbanaka magnetik ferrite bụ nke ígwè oxide, nickel oxide, zinc oxide, ọla kọpa oxide na ihe ndị ọzọ ferrite, n'ihi na ihe ndị a nwere ihe ndị ferrite, na ihe ferrite mepụtara site na ngwaahịa dị ka mgbanaka, yabụ ka oge na-aga, a na-akpọ ya mgbanaka magnetik ferrite.
18. Olee otú demagnetize magnetik isi?
Usoro a bụ itinye ihe ntụgharị nke 60Hz na isi ka nke mbụ ịkwọ ụgbọ ala zuru ezu iji mejupụta njedebe dị mma na nke na-adịghị mma, wee jiri nwayọọ nwayọọ belata ọkwa ịkwọ ụgbọ ala, ugboro ugboro ugboro ugboro ruo mgbe ọ dara na efu. Nke ahụ ga-eme ka ọ laghachi azụ n'ọnọdụ mbụ ya.
Kedu ihe bụ magnetoelasticity (magnetostriction)?
Mgbe magnetized ihe magnetik, obere mgbanwe na geometry ga-eme. Mgbanwe a na nha kwesịrị ịdị n'usoro nke akụkụ ole na ole kwa nde, nke a na-akpọ magnetostriction. Maka ụfọdụ ngwa, dị ka ultrasonic generators, a na-ewere uru nke ihe onwunwe a iji nweta nrụrụ igwe site na magnetostriction nwere obi ụtọ. N'ebe ndị ọzọ, ụzụ na-efe efe na-eme mgbe ọ na-arụ ọrụ n'ogo a na-anụ ụda. Ya mere, a pụrụ itinye ihe ndị na-ebelata magnetik dị ala na nke a.
20. Gịnị bụ ndọta ekwekọghị?
Ihe omume a na-eme na ferrite ma mara ya site na mbelata nke permeability nke na-eme mgbe isi na-emebi emebi. Nke a demagnetization nwere ike ime mgbe okpomọkụ na-arụ ọrụ dị elu karịa Curie point okpomọkụ, na ngwa nke ọzọ nke ugbu a ma ọ bụ n'ibu vibration ji nwayọọ nwayọọ na-ebelata.
N'ihe a na-eme, mwepu ahụ na-ebu ụzọ na-abawanye ruo ọkwa mbụ ya wee na-agbada ngwa ngwa. Ọ bụrụ na enweghị ọnọdụ pụrụ iche a na-atụ anya site na ngwa ahụ, mgbanwe nke permeability ga-adị ntakịrị, n'ihi na ọtụtụ mgbanwe ga-eme na ọnwa ndị na-esote mmepụta. Okpomọkụ dị elu na-eme ka mbelata nke permeability a dịkwuo elu. A na-emegharị dissonance magnetik mgbe ọ bụla demagnetization na-aga nke ọma na ya mere dị iche na ịka nká.
Ihe ka ọtụtụ n'ime ihe mejupụtara bụ ụmụ irighiri ihe mejupụtara atom bụ nke n'aka nke ya bụ nuclei na electrons. N'ime atom, electrons na-atụgharị ma na-atụgharị gburugburu oghere, nke abụọ na-emepụta magnetism. Ma n'ọtụtụ okwu, ndị electrons na-agagharị n'ụdị ntụziaka ọ bụla, na mmetụta magnetik na-akagbu ibe ha. Ya mere, ọtụtụ ihe anaghị egosipụta magnetism n'okpuru ọnọdụ nkịtị.
N'adịghị ka ihe ferromagnetic dị ka ígwè, cobalt, nickel ma ọ bụ ferrite, ihe na-agbagharị electron nke dị n'ime nwere ike kwụ n'ahịrị n'otu oge na obere mpaghara, na-eme mpaghara magnetization na-enweghị onwe nke a na-akpọ ngalaba magnetik. Mgbe magnetized ihe ferromagnetic, ngalaba ndọta ha dị n'ime ha na-ahazi nke ọma na n'otu ụzọ ahụ, na-ewusi magnetism ike ma na-akpụ magnet. Usoro magnetization nke magnet bụ usoro magnetization nke ígwè. Ígwè magnetized na magnetik nwere mmasị dị iche iche nke polarity, na ígwè ahụ na-ejikọta ya na magnet.
2. Kedu ka esi akọwapụta arụmọrụ nke magnet?
Enwere oke arụmọrụ atọ iji chọpụta arụmọrụ magnet:
Remanent Br: Mgbe magnetized na-adịgide adịgide ka magnetized na saturation teknụzụ wee wepụ oghere ndọta dị n'èzí, a na-akpọ Br ahụ ejidere residual magnetik induction intensity.
Mmakọ Hc: Iji wedata B nke magnet na-adịgide adịgide magnetized na saturation teknụzụ ka ọ bụrụ efu, ike ndọta azụ nke achọrọ ka a na-akpọ mmanye magnetik, ma ọ bụ mmanye maka mkpụmkpụ.
Ngwaahịa ike ndọta BH: na-anọchi anya njupụta ike magnetik guzobe na oghere ikuku (ohere dị n'etiti ogwe magnetik abụọ nke magnet), ya bụ, ike magnetik static kwa otu olu nke oghere ikuku.
3. Kedu ka esi akọwapụta ihe ndọta ígwè?
A na-ekewa ihe ndọta ọla n'ime ihe ndọta na-adịgide adịgide na ihe ndọta dị nro. Ọtụtụ mgbe, a na-akpọ ihe ndị nwere coercivity intrinsic karịa 0.8kA/m ihe magnetik na-adịgide adịgide, na ihe nwere ike ime ihe na-erughị 0.8kA/m ka a na-akpọ ihe ndọta dị nro.
4. Ntụnyere ike ndọta dị iche iche nke ihe ndọta a na-ejikarị eme ihe
Ike ndọta site na nnukwu ruo obere nhazi: Ndfeb magnet, samarium cobalt magnet, aluminum nickel cobalt magnet, ferrite magnet.
5. Mmekọahụ valence ntụnyere nke ihe ndọta dị iche iche?
Ferrite: arụmọrụ dị ala na nke ọkara, ọnụahịa kacha ala, njirimara okpomọkụ dị mma, nguzogide corrosion, oke ọnụahịa arụmọrụ dị mma
Ndfeb: arụmọrụ kachasị elu, ọnụahịa ọkara, ike dị mma, adịghị eguzogide okpomọkụ dị elu na corrosion
Samarium cobalt: arụmọrụ dị elu, ọnụahịa kachasị elu, kenkuwa, njirimara okpomọkụ dị mma, nguzogide corrosion
Aluminium nickel cobalt: arụmọrụ dị ala na nke ọkara, ọnụahịa ọkara, njirimara okpomọkụ dị mma, nguzogide corrosion, nguzogide ndabichi adịghị mma
Enwere ike ime Samarium cobalt, ferrite, Ndfeb site na ijikọ na usoro njikọ. The sintering magnetik ihe onwunwe dị elu, akpụ adịghị mma, na bonding magnet dị mma na arụmọrụ na-ebelata nke ukwuu. Enwere ike ịrụpụta AlNiCo site na nkedo na ụzọ ịmegharị ihe, ndọta ndọta nwere ihe dị elu na usoro adịghị mma, na magnetik nwere ihe ndị dị ala na nhazi ka mma.
6. Njirimara nke Ndfeb magnet
Ndfeb ihe ndọta na-adịgide adịgide bụ ihe ndọta na-adịgide adịgide dabere na ngwakọta intermetallic Nd2Fe14B. Ndfeb nwere nnọọ elu magnetik ike ngwaahịa na ike, na uru nke elu ume njupụta na-eme ka ndFEB na-adịgide adịgide magnet ihe ọtụtụ-eji na oge a ụlọ ọrụ na electronic technology, nke mere na ngwá, electroacoustic Motors, magnetik nkewa magnetization akụrụngwa miniaturization, ìhè arọ, mkpa ghọọ. kwere omume.
Ihe eji eme ihe: Ndfeb nwere uru nke arụmọrụ dị elu, nke nwere njirimara ọrụ dị mma; Ihe ọghọm ya bụ na ebe okpomọkụ Curie dị ala, njirimara okpomọkụ adịghị mma, ọ dịkwa mfe iji powdery corrosion, n'ihi ya, a ghaghị imeziwanye ya site n'ịgbanwe ihe mejupụtara kemịkalụ ya na ịnakwere ọgwụgwọ elu iji mezuo ihe achọrọ nke ngwa bara uru.
Usoro nrụpụta: Nrụpụta nke Ndfeb site na iji ntụ ntụ metallurgy usoro.
Usoro eruba: batching â † 'na-agbaze ingot na-eme â†' ntụ ntụ na-eme â†'' ịpị â†' sintering tempering â†' nchọpụta magnetik â†' egweri â † 'pin ịkpụ â†' electroplating â†' Emechara ngwaahịa.
7. Gịnị bụ magnet otu akụkụ?
Magnet nwere okporo osisi abụọ, ma n'ọnọdụ ụfọdụ, ọ dị mkpa ka ọ bụrụ ihe ndọta otu pole, ya mere, anyị kwesịrị iji ígwè mee ihe na magnet, ígwè n'akụkụ akụkụ magnetik, na site na ntụgharị n'akụkụ nke ọzọ nke efere magnet, mee nke ọzọ. N'akụkụ ihe ndọta ndọta, a na-akpọkọta ihe ndọta dị otú ahụ dị ka otu magnetik ma ọ bụ ihe ndọta. Ọnweghị ihe dị ka ezigbo magnetik akụkụ.
Ihe eji eme magnetik otu akụkụ bụ n'ozuzu arc ígwè mpempe akwụkwọ na Ndfeb ike magnet, ọdịdị nke otu akụkụ magnet maka ndFEB ike magnet bụ n'ozuzu gburugburu udi.
8. Kedu ihe eji ndọta nwere otu akụkụ?
(1) A na-eji ya eme ihe na ụlọ ọrụ obibi akwụkwọ. Enwere ndọta nwere otu akụkụ na igbe onyinye, igbe ekwentị mkpanaaka, igbe ụtaba na igbe mmanya, igbe ekwentị mkpanaaka, igbe MP3, igbe achịcha ọnwa na ngwaahịa ndị ọzọ.
(2) A na-eji ya eme ihe na ụlọ ọrụ ngwaahịa akpụkpọ anụ. Akpa, akpa akpa, akpa njem, akpa ekwentị mkpanaaka, obere akpa na ngwa akpụkpọ anụ ndị ọzọ nwere ihe ndọta nwere otu akụkụ.
(3) A na-ejikarị ya eme ihe na ụlọ ọrụ na-ede akwụkwọ. Ihe ndọta nwere otu akụkụ dị na akwụkwọ ndetu, bọtịnụ ọcha, nchekwa, akara aha magnet na ihe ndị ọzọ.
9. Gịnị ka a ga-aṅa ntị n'oge njem nke magnet?
Lezienụ anya na iru mmiri dị n'ime ụlọ, nke a ga-edobe na ọkwa akọrọ. Agafela okpomọkụ ụlọ; Ojii mgbochi ma ọ bụ ọnọdụ oghere nke nchekwa ngwaahịa nwere ike kpuchie ya nke ọma na mmanụ (mmanụ zuru oke); Ngwaahịa eletrọnịkị kwesịrị ịbụ ihe mkpuchi oghere ma ọ bụ nchekwa dịpụrụ adịpụ, iji hụ na nguzogide corrosion nke mkpuchi; Ekwesịrị ijikọta ngwaahịa magnetik ọnụ ma chekwaa ya n'ime igbe ka ọ ghara ịmịpụta ahụ ọla ndị ọzọ; Ekwesịrị ịchekwa ngwaahịa magnetik na diski magnetik, kaadị magnetik, teepu magnetik, ihe nleba anya kọmputa, elekere na ihe ndị ọzọ nwere mmetụta. Ekwesịrị ichebe steeti magnetization magnet n'oge njem, ọkachasị ụgbọ njem ikuku ga-echekwarịrị kpamkpam.
10. Olee otú iji nweta ndọta kewapụrụ?
Naanị ihe nwere ike ijikọ na magnet nwere ike igbochi oghere magnetik, na ihe dị arọ karị, ka mma.
11. Kedu ihe ferrite na-eduzi ọkụ eletrik?
Arọ magnetik ferrite bụ nke magnetik conductivity ihe, kpọmkwem elu permeability, elu resistivity, n'ozuzu eji na elu ugboro, tumadi eji na electronic nkwurịta okwu. Dị ka kọmputa na TVS anyị na-emetụ kwa ụbọchị, e nwere ngwa n'ime ha.
Ferrite dị nro na-agụnye manganese-zinc na nickel-zinc wdg. Manganese-zinc ferrite magnetik conductivity dị ukwuu karịa nke nickel-zinc ferrite.
Gịnị bụ Curie okpomọkụ nke magnet ferrite na-adịgide adịgide?
A na-akọ na okpomọkụ Curie nke ferrite dị ihe dịka 450℃, na-adịkarị karịa ma ọ bụ nhata 450℃. Isi ike bụ ihe dịka 480-580. Okpomọkụ Curie nke Ndfeb magnet bụ isi n'etiti 350-370℃. Ma ojiji okpomọkụ nke Ndfeb magnet enweghị ike iru Curie okpomọkụ, okpomọkụ bụ ihe karịrị 180-200℃ magnetik onwunwe attenuated a otutu, magnetik ọnwụ bụkwa nnọọ nnukwu, furu efu ojiji uru.
13. Gịnị bụ paramita dị irè nke isi magnetik?
Cores magnetik, ọkachasị ihe ferrite, nwere akụkụ geometric dị iche iche. Iji mezuo ihe dị iche iche chọrọ imewe, a na-agbakọkwa nha nke isi ka ọ dabara na njikarịcha chọrọ. Ihe ndị a bụ isi nke dị na-agụnye parampat anụ ahụ dị ka ụzọ magnetik, mpaghara dị irè na olu dị irè.
14. Gịnị mere radius nkuku ji dị mkpa maka ikuku ikuku?
Oghere angular dị mkpa n'ihi na ọ bụrụ na nsọtụ nke isi dị oke nkọ, ọ nwere ike imebi mkpuchi nke waya n'oge usoro ikuku ziri ezi. Jide n'aka na akụkụ ndị dị na ya dị larịị. Ferrite cores bụ ihe ebu nwere ọkọlọtọ okirikiri okirikiri, na cores ndị a na-egbu maramara na deburred iji belata ịdị nkọ nke akụkụ ha. Tụkwasị na nke ahụ, a na-ese ọtụtụ cores ma ọ bụ kpuchie ọ bụghị nanị iji mee ka akụkụ ha na-agafe agafe, kamakwa iji mee ka elu ha na-ekugharị dị larịị. Isi ntụ ntụ nwere radius nrụgide n'otu akụkụ yana ọkara okirikiri n'akụkụ nke ọzọ. Maka ihe ferrite, a na-enye ihe mkpuchi ihu ọzọ.
15. Kedu ụdị isi ihe ndọta kwesịrị ekwesị maka ime mgbanwe?
Iji gboo mkpa nke isi ihe ntụgharị kwesịrị inwe ike ndọta dị elu n'otu aka ahụ, n'aka nke ọzọ iji mee ka okpomọkụ ya dị elu n'ime oke ụfọdụ.
Maka inductance, ihe ndọta magnetik kwesịrị inwe ụfọdụ oghere ikuku iji hụ na ọ nwere ọkwa nke permeability n'ihe banyere elu DC ma ọ bụ AC mbanye, ferrite na isi nwere ike ịbụ ọgwụgwọ ikuku ikuku, isi ntụ ntụ nwere oghere ikuku nke ya.
16. Kedu ụdị isi magnetik kacha mma?
Ekwesịrị ịsị na ọ nweghị azịza maka nsogbu ahụ, n'ihi na a na-ekpebi nhọrọ nke isi magnetik dabere na ngwa ngwa na ngwa ngwa, wdg, nhọrọ ihe ọ bụla na ihe ndị ahịa ga-atụle, dịka ọmụmaatụ, ụfọdụ ihe nwere ike ịhụ na ịrị elu okpomọkụ dị ntakịrị, ma ọnụahịa dị oke ọnụ, ya mere, mgbe ịhọrọ ihe megide oke okpomọkụ, ọ ga-ekwe omume ịhọrọ oke ibu ma ihe nwere ọnụ ala dị ala iji mezue ọrụ ahụ, ya mere nhọrọ nke ihe kachasị mma na ngwa chọrọ. maka inductor ma ọ bụ ihe ntụgharị mbụ gị, site na nke a, ugboro ole na-arụ ọrụ na ọnụ ahịa bụ ihe ndị dị mkpa, dị ka nhọrọ kachasị mma nke ihe dị iche iche na-adabere na ngbanwe ugboro ugboro, okpomọkụ na njupụta magnetik.
17. Gịnị bụ mgbanaka magnetik mgbochi nnyonye anya?
Mgbanaka ndọta mgbochi nnyonye anya ka a na-akpọkwa mgbanaka magnetik ferrite. Oku isi iyi mgbochi nnyonye anya magnetik mgbanaka, bụ na ọ nwere ike na-arụ ọrụ nke mgbochi nnyonye anya, ka ihe atụ, eletrọnịkị ngwaahịa, site n'èzí nsogbu mgbaàmà, mbuso agha nke electronic ngwaahịa, electronic ngwaahịa natara n'èzí nsogbu mgbaama nnyonye anya, ọ bụghị e. ike na-agba ọsọ nkịtị, na mgbochi nnyonye anya magnetik mgbanaka, dị nnọọ nwere ike inwe ọrụ a, ọ bụrụhaala na ngwaahịa na mgbochi nnyonye anya magnetik mgbanaka, ọ nwere ike igbochi n'èzí nsogbu mgbaàmà n'ime electronic ngwaahịa, Ọ nwere ike ime ka ngwá electronic na-agba ọsọ nkịtị na na-egwu mmetụta mgbochi nnyonye anya, ya mere a na-akpọ ya mgbanaka magnetik mgbochi.
A na-akpọkwa mgbanaka magnetik na-egbochi nnyonye anya dị ka mgbanaka magnetik ferrite, n'ihi na mgbanaka magnetik ferrite bụ nke ígwè oxide, nickel oxide, zinc oxide, ọla kọpa oxide na ihe ndị ọzọ ferrite, n'ihi na ihe ndị a nwere ihe ndị ferrite, na ihe ferrite mepụtara site na ngwaahịa dị ka mgbanaka, yabụ ka oge na-aga, a na-akpọ ya mgbanaka magnetik ferrite.
18. Olee otú demagnetize magnetik isi?
Usoro a bụ itinye ihe ntụgharị nke 60Hz na isi ka nke mbụ ịkwọ ụgbọ ala zuru ezu iji mejupụta njedebe dị mma na nke na-adịghị mma, wee jiri nwayọọ nwayọọ belata ọkwa ịkwọ ụgbọ ala, ugboro ugboro ugboro ugboro ruo mgbe ọ dara na efu. Nke ahụ ga-eme ka ọ laghachi azụ n'ọnọdụ mbụ ya.
Kedu ihe bụ magnetoelasticity (magnetostriction)?
Mgbe magnetized ihe magnetik, obere mgbanwe na geometry ga-eme. Mgbanwe a na nha kwesịrị ịdị n'usoro nke akụkụ ole na ole kwa nde, nke a na-akpọ magnetostriction. Maka ụfọdụ ngwa, dị ka ultrasonic generators, a na-ewere uru nke ihe onwunwe a iji nweta nrụrụ igwe site na magnetostriction nwere obi ụtọ. N'ebe ndị ọzọ, ụzụ na-efe efe na-eme mgbe ọ na-arụ ọrụ n'ogo a na-anụ ụda. Ya mere, a pụrụ itinye ihe ndị na-ebelata magnetik dị ala na nke a.
20. Gịnị bụ ndọta ekwekọghị?
Ihe omume a na-eme na ferrite ma mara ya site na mbelata nke permeability nke na-eme mgbe isi na-emebi emebi. Nke a demagnetization nwere ike ime mgbe okpomọkụ na-arụ ọrụ dị elu karịa Curie point okpomọkụ, na ngwa nke ọzọ nke ugbu a ma ọ bụ n'ibu vibration ji nwayọọ nwayọọ na-ebelata.
N'ihe a na-eme, mwepu ahụ na-ebu ụzọ na-abawanye ruo ọkwa mbụ ya wee na-agbada ngwa ngwa. Ọ bụrụ na enweghị ọnọdụ pụrụ iche a na-atụ anya site na ngwa ahụ, mgbanwe nke permeability ga-adị ntakịrị, n'ihi na ọtụtụ mgbanwe ga-eme na ọnwa ndị na-esote mmepụta. Okpomọkụ dị elu na-eme ka mbelata nke permeability a dịkwuo elu. A na-emegharị dissonance magnetik mgbe ọ bụla demagnetization na-aga nke ọma na ya mere dị iche na ịka nká.
Nke gara aga:Ebee ka ebe bọọlụ ụgbọ ala dị?
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