Game da Magnets

Menene Neodymium Magnets

Neodymium maganadiso (taƙaice: NdFeb maganadiso) su ne mafi ƙarfi na dindindin maganadisu a kasuwa, a ko'ina cikin duniya. Suna bayar da matakan da ba a iya kwatanta su ba na maganadisu da juriya ga demagnetization idan aka kwatanta da Ferrite, Alnico da ma Samarium-cobalt maganadiso.
Neodymium maganadiso ana darajarsu bisa ga iyakar ƙarfin samfurin su, wanda ke da alaƙa da fitarwar maganadisu kowace juzu'i. Maɗaukakin ƙima suna nuna ƙaƙƙarfan maganadisu. Don maganadiso NdFeB mai sirƙira, akwai sanannen rarrabuwa na duniya. Ƙimar su ta tashi daga 28 zuwa 55. Harafin farko N kafin ƙimar gajeriyar neodymium, ma'ana sintered NdFeB maganadiso.
Neodymium maganadiso yana da mafi girma girma, mafi girma ƙarfi ƙarfi da makamashi samfurin, amma sau da yawa rage Curie zafin jiki fiye da sauran nau'in maganadiso. Musamman neodymium magnet alloys wanda ya hada da terbium da
An haɓaka dysprosium wanda ke da zafin jiki mafi girma na Curie, yana ba su damar jure yanayin zafi mafi girma. Teburin da ke ƙasa yana kwatanta aikin maganadisu na maganadiso neodymium tare da sauran nau'ikan maganadisu na dindindin.

Menene Magnet neodymium ake amfani dashi? Saboda neodymium maganadiso da karfi sosai, amfani da su ya yadu sosai. Ana samar da su don buƙatun ofis, kasuwanci da masana'antu, waɗanda ake amfani da su a cikin nau'ikan injin turbin iska,
lasifika, belun kunne da injina, makirufo, na'urori masu auna firikwensin, kula da lafiya, marufi, kayan wasanni, sana'a da filayen jirgin sama.

Menene Ferrite Magnets

Ferrite Magnets ban da ferrite maganadisu da taushin magana.
Hard ferrites suna da babban tilastawa, don haka suna da wahalar ragewa. Ana amfani da su don yin magneto na dindindin don aikace-aikace kamar firiji, lasifika, da ƙananan injinan lantarki da sauransu.

ferrites masu laushi suna da ƙananan ƙarfin ƙarfi, don haka suna sauƙin canza maganadisu kuma suna aiki azaman masu jagoranci na filayen maganadisu. Ana amfani da su a cikin masana'antar lantarki don yin ingantattun muryoyin maganadisu da ake kira ferrite cores don inductor mai girma, masu taswira da eriya, da kuma a cikin kayan aikin microwave daban-daban.

Abubuwan haɗin ferrite ba su da tsada sosai, ana yin su da yawancin ƙarfe oxide, kuma suna da kyakkyawan juriya na lalata.
Menene Alnico Magnets
Alnico maganadiso ne na dindindin maganadisu waɗanda aka fara yin su da haɗin aluminum, nickel da cobalt amma kuma suna iya haɗawa da jan karfe, ƙarfe da titanium.
Sun zo a cikin isotropic, mara-directional, ko anisotropic, guda-directional, tsari. Da zarar magnetized, suna da sau 5 zuwa 17 ƙarfin maganadisu na magnetite ko lodestone, waɗanda ke faruwa a zahiri abubuwan maganadisu waɗanda ke jan hankalin ƙarfe.
Alnico maganadiso yana da ƙarancin ƙarancin zafin jiki kuma ana iya ƙididdige shi don haɓakawa mai yawa don amfani a aikace-aikacen zafin jiki mai girma kamar 930°F ko 500°C. Ana amfani da su a inda juriya na lalata ya zama dole kuma don nau'ikan firikwensin daban-daban.

Menene Samarium-Cobalt Magnet (SmCo Magnet)

A samarium-cobalt (SmCo) maganadisu, wani nau'i na magnetin kasa-kasa, mai ƙarfi ne mai ƙarfi na dindindin wanda aka yi da abubuwa na asali guda biyu: Samarium da cobalt. ratings da mafi girma tilastawa.
Wasu halayen SmCo sune:
Samarium-cobalt maganadiso suna da matuƙar juriya ga demagnetization.
Wadannan maganadiso suna da kwanciyar hankali mai kyau na zafin jiki (mafi girman yanayin amfani da ke tsakanin 250 °C (523 K) da 550 °C (823 K); Curie zafin jiki daga 700 °C (973 K) zuwa 800 °C (1,070 K).
Suna da tsada kuma suna ƙarƙashin canjin farashi (cobalt yana da mahimmancin farashin kasuwa).
SmCo maganadiso da karfi juriya ga lalata da hadawan abu da iskar shaka juriya, yawanci ba sa bukatar da za a mai rufi kuma za a iya amfani da ko'ina a high zafin jiki da kuma matalauta aiki yanayi. Suna da rauni, kuma suna da saurin fashewa da guntuwa. Samarium-cobalt maganadisu suna da matsakaicin samfuran makamashi (BHmax) waɗanda ke tsakanin megagauss-oersteds 14 (MG·Oe) zuwa 33 MG·Oe, wato kusan. 112 kJ/m3 zuwa 264 kJ/m3; Iyakar ka'idar su shine 34 MG · Oe, kusan 272 kJ/m3.
Sauran amfani sun haɗa da:
1. High-karshen lantarki Motors amfani a cikin mafi m azuzuwan a slotcar racingTurbomachinery.
2. Tafiya-kalaman bututu filin maganadisu.
3. Aikace-aikace waɗanda zasu buƙaci tsarin aiki a yanayin zafi na cryogenic ko zafi mai zafi (fiye da 180 ° C).
4. Aikace-aikace a cikin abin da ake buƙatar aiki don dacewa da canjin zafin jiki.
5. Benchtop NMR spectrometers.
6. Rotary encoders inda yake yin aikin magnetic actuator.