Maginito abwera mtunda wautali kuyambira masiku a unyamata wanu mukamakhala nthawi yayitali amakonza zowoneka bwino za pulasitiki za amayi anu. Maginito a lero ndi olimba kuposa kale ndipo mitundu yawo imawapangitsa kukhala othandiza pazosiyanasiyana.
Zochitika Padziko Lapansi ndi Ceramic Maginito - makamaka zazikulu kwambiri zamatsenga - zidasinthiratu mafakitale ambiri ndi mabizinesi pokulitsa kuchuluka kwa mapulogalamu kapena kupanga mapulogalamu omwe alipo omwe ali othandiza kwambiri. Ngakhale kuti eni bizinesi ambiri amadziwa zamatsenga, kumvetsetsa zomwe zimawapangitsa kukhala osiyana ndi osokoneza. Nayi kusiyana pakati pa kusiyana pakati pa mitundu iwiri ya maginito, komanso ma synopsis a maubwino awo ndi zovuta zawo:
Dziko lapansi
Maginitsi olimba kwambiriwa amatha kupangidwa ndi Nentymium kapena Samarium, zonse ziwiri za zinthu za lantanide. Samarium adagwiritsidwa ntchito koyamba mu 1970s, ndi maginerani a ku Newdymium omwe akubwera kudzagwiritsa ntchito m'ma 1980s. Onse a ku Nonenera ndi Samarium ndi olimba kwambiri padziko lapansi ndipo amagwiritsidwa ntchito m'mafakitale ambiri kuphatikizapo ma turbines amphamvu kwambiri kuphatikizapo ma turbines amphamvu kwambiri komanso mapulogalamu komanso ntchito zasayansi.
Newdyoum
Nthawi zina amatchedwa Nedfeb Maginito a zinthu zomwe ali nawo - Niroddium, chitsulo ndi boron, kapena Nib - matsenga a Nib - maginito olimba kwambiri omwe alipo. Mphamvu yayikulu kwambiri (BHMAX) ya maginito awa, omwe akuimira mphamvu yayikulu, imatha kukhala yoposa 50mgoe.
BHMAX WA BHMAX - pafupifupi nthawi 10 kuposa maginito a ceramic - zimawapangitsa kukhala abwino pazogwiritsa ntchito zina, koma pali njira yothandizirana ndi magwiridwe antchito, zomwe zikutanthauza kuti ikapitilira kutentha kwina, idzataya mphamvu yake. Mapako a ku NEdymium a Newdymium maginisi ndi 150 madigiri a Celsius, pafupifupi theka la samarium cobat kapena ceramic. (Dziwani kuti matenthedwe omwe amataya mphamvu atataya mphamvu mukamatha kutentha amatha kusintha zina zochokera ku Alloy.)
Maginitsi amathanso kufananizidwa kutengera TCurie awo. Makulidwe akamatenthetsa kutentha kwambiri tmax yawo, nthawi zambiri amatha kuchira; TCurie ndi kutentha kopitilira muchira komwe sikungachitike. Kwa maginito a Newwymium, Tcurie ndi 310 digiri Celsius; Matsenga a Newdymium amatenthedwa kapena kupitirira pamenepo kutentha sikutha kubwezeretsa magwiridwe antchito akakhazikika. Onse a Samarium ndi ceramium maginito ali ndi matayala apamwamba, omwe amawapangitsa kusankha bwino kwa mapulogalamu apamwamba.
Maginito a Nine
Sarium cobalt
Samorium cobalt, kapena sacno, magnets adapezeka mu 1970s, ndipo kuyambira pamenepo, agwiritsidwa ntchito pazosiyanasiyana. Ngakhale osalimba ngati Newdmium Magnetnet - ma cobalt amatsenga amakhala ndi BHMAX ya pafupifupi 26 - Maginitsi awa ali ndi mwayi wotha kupirira kutentha kwambiri kuposa ma newdymium maginitsi. Ma Tmax a magibala a samalar cobalt ndi madigiri 300 Celsius, ndipo Tcurie amatha kukhala ochuluka ngati madigiri 750 Celsius. Mphamvu zawo zimaphatikizidwa ndi kuthekera kwawo kolimba kwambiri kutentha kwambiri kumawapangitsa kukhala abwino pakugwiritsa ntchito kutentha kwambiri. Mosiyana ndi ma newddium maginito, ma sabomaum cobarti amatsenga amakhala ndi kukana bwino kuvunda; Amakonda kukhala ndi mtengo wapamwamba kuposa ma nedymium maginitsi.
Choumbudwa
Zopangidwa ndi barium Ferrite kapena strontium, Maginiki a matenda a ceramium akhala pafupi kutalika kuposa magetsi apadziko lapansi ndipo adagwiritsidwa ntchito koyamba mu 1960s. Maginito nthawi zambiri amakhala otsika mtengo kuposa macani adziko lapansi koma alibe mphamvu ndi BHmax wazaka pafupifupi 3.5 - pafupifupi gawo limodzi kuposa a NAdymium kapena magibalame a cobalt.
Ponena za kutentha, maginito a ceratic amakhala ndi tmax ya madigiri 300 ndipo, monga magiliyoni amatsenga, a Samariya, Tcurie wa madigiri 460 Celsius. Maginito a ceramic amalimbana kwambiri ndi kutuka ndipo nthawi zambiri safuna kuyanjana. Ndiosavuta kumavulaza komanso kutsika mtengo wotsika mtengo kuposa ma nedymium kapena mamarium cobalt amatsenga; Komabe, maginiki a ceratic ndi opanda pake kwambiri, kuwapangitsa kuti azisankha bwino ntchito zomwe zimaphatikizapo kusinthasintha kapena kupsinjika. Maginito a ceramic nthawi zambiri amagwiritsidwa ntchito powonetsera makalasi komanso kugwiritsa ntchito mafakitale amphamvu ndi bizinesi, monga majerezati otsika kapena ma turbine. Amathanso kugwiritsidwa ntchito pazinthu zapanyumba komanso kupanga ma sheet ndi chizindikiro.
Post Nthawi: Mar-09-2022
