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Permanent maginito zipangizo (maginito) chidziwitso kutchuka

Pakali pano, wamba okhazikika maginito zipangizo ndi ferrite maginito, NdFeb maginito, SmCo maginito, Alnico maginito, maginito a rabara ndi zina zotero. Izi ndizosavuta kugula, ndi magwiridwe antchito wamba (osati miyezo ya ISO) yosankha. Iliyonse mwa maginito omwe ali pamwambawa ali ndi mawonekedwe ake komanso magawo osiyanasiyana ogwiritsira ntchito, zomwe zafotokozedwa mwachidule ndi izi.

Neodymium maginito

NdFeb ndi maginito omwe amagwiritsidwa ntchito kwambiri komanso akukula mwachangu.

Maginito a Neodymium amagwiritsidwa ntchito kwambiri kuyambira pomwe adapangidwa mpaka pano, komanso zaka zopitilira 20. Chifukwa cha kuchuluka kwa maginito komanso kukonza kosavuta, ndipo mtengo wake siwokwera kwambiri, chifukwa chake gawo logwiritsira ntchito likukula mwachangu. Pakali pano, malonda NdFeb, mankhwala ake maginito mphamvu akhoza kufika 50MGOe, ndipo 10 nthawi ferrite.

NdFeb ndi mankhwala a ufa zitsulo ndipo kukonzedwa mofanana ndi samarium cobalt maginito.

Pakalipano, kutentha kwakukulu kwa ntchito ya NdFeb ndi kuzungulira 180 digiri Celsius. Pazogwiritsa ntchito movutikira, zimalimbikitsidwa kuti musapitirire madigiri 140 Celsius.

NdFeb ndi dzimbiri mosavuta. Chifukwa chake, zinthu zambiri zomalizidwa ziyenera kukhala ndi electroplated kapena zokutira. Mankhwala ochiritsira pamwamba amaphatikizapo nickel plating (nickel-copper nickel), zinc plating, aluminium plating, electrophoresis, etc. Ngati mumagwira ntchito pamalo otsekedwa, mungagwiritsenso ntchito phosphating.

Chifukwa mkulu maginito zimatha NdFeb, nthawi zambiri, izo ntchito m'malo zipangizo zina maginito kuchepetsa buku la mankhwala. Ngati mumagwiritsa ntchito maginito a ferrite, kukula kwa foni yamakono, ndikuwopa osachepera theka la njerwa.

Maginito awiriwa ali ndi ntchito yabwino yopangira. Chifukwa chake, kulolerana kwapang'onopang'ono kwa mankhwalawa ndikwabwinoko kuposa kwa ferrite. Kwa mankhwala ambiri, kulolerana kungakhale (+/-) 0.05mm.

Samarium Cobalt maginito

Samarium cobalt maginito, zosakaniza zazikulu ndi samarium ndi cobalt. Chifukwa mtengo wazinthu ndi wokwera mtengo, maginito a samarium cobalt ndi amodzi mwa mitundu yodula kwambiri.

Mphamvu yamaginito yamagetsi ya samarium cobalt imatha kufikira 30MGOe kapena kupitilira apo. Kuphatikiza apo, maginito a cobalt a samarium ndi okakamiza kwambiri komanso osagwirizana ndi kutentha, ndipo angagwiritsidwe ntchito pa kutentha mpaka madigiri 350 Celsius. Kotero kuti ndi yosasinthika mu ntchito zambiri

Samarium cobalt maginito ndi ya ufa metallurgy mankhwala. Opanga zinthu zonse molingana ndi kukula ndi mawonekedwe azofunikira zomalizidwa, amawotchedwa mopanda kanthu, kenako amagwiritsa ntchito tsamba la diamondi kuti adule kukula kwa chinthu chomalizidwa. Chifukwa samarium cobalt ndi magetsi, imatha kudulidwa molunjika. Mwachidziwitso, samarium cobalt ikhoza kudulidwa mu mawonekedwe omwe amatha kudulidwa mzere, ngati magnetization ndi kukula kwakukulu sikuganiziridwa.

Maginito a Samarium cobalt ali ndi kukana kwa dzimbiri ndipo nthawi zambiri safuna anti-corrosion plating kapena zokutira. Kuphatikiza apo, maginito a cobalt samarium ndizovuta, zimakhala zovuta kupanga zinthu zazing'ono kapena makoma owonda.

Alnico maginito

Alnico maginito ali ndi kuponyera ndi sintering njira ziwiri zosiyana. Zogulitsa zam'nyumba zotulutsa Alnico. The maginito mankhwala a Alnico maginito akhoza mpaka 9MGOe, ndipo ali mbali yaikulu ndi kuti ndi kukana kutentha, ntchito kutentha kufika madigiri 550 Celsius. Komabe, Alnico maginito ndi yosavuta kuti demagnetize mu inverted maginito munda. Mukakankhira mitengo iwiri ya maginito ya Alnico mbali imodzi (ma N awiri kapena ma S awiri) palimodzi, gawo la imodzi mwa maginito lidzabwezedwa kapena kusinthidwa. Choncho, si koyenera kugwira ntchito mu inverted magnetic field (monga galimoto).

Alnico ndi yolimba kwambiri ndipo imatha kudulidwa ndi kudula mawaya, koma pamtengo wokwera. General kotunga yomalizidwa mankhwala, pali mitundu iwiri ya akupera zabwino kapena ayi akupera.

Ferrite maginito / Ceramic maginito

Ferrite ndi mtundu wa zinthu zopanda maginito zomwe zimadziwikanso kuti maginito ceramics. Timasiyanitsa wailesi wamba, ndipo maginito a nyanga mmenemo ndi ferrite.

The maginito zimatha ferrite si mkulu, panopa maginito mphamvu mankhwala (imodzi mwa magawo kuyeza ntchito maginito) akhoza kuchita 4MGOe apamwamba pang'ono. Zakuthupi zili ndi mwayi waukulu wokhala wotsika mtengo. Panopa, imagwiritsidwabe ntchito kwambiri m’madera ambiri

Ferrite ndi ceramic. Chifukwa chake, magwiridwe antchito amafanana ndi a ceramic. Maginito a Ferrite amapanga nkhungu, akutuluka. Ngati kuli kofunika kukonza, kugaya kosavuta kokha kungatheke.

Chifukwa cha zovuta za kukonza makina, kotero ambiri a mawonekedwe a ferrite ndi osavuta, ndi kukula kulolerana ndi lalikulu. Zogulitsa za square shape ndi zabwino, zimatha kupukutidwa. Zozungulira, nthawi zambiri akupera ndege ziwiri zokha. Zololera zina zowoneka bwino zimaperekedwa ngati kuchuluka kwa miyeso yodziwika.

Chifukwa maginito a ferrite akhala akugwiritsidwa ntchito kwa zaka zambiri, opanga ambiri amakhala ndi mphete zokonzeka, mabwalo ndi zinthu zina zamawonekedwe wamba ndi makulidwe oti asankhe.

Chifukwa ferrite ndi zinthu za ceramic, palibe vuto la dzimbiri. Zotsirizidwa sizifuna chithandizo chapamwamba kapena zokutira monga electroplating.


Nthawi yotumiza: Nov-22-2021