Advanced Aluminium Oxide (Al2O3): Kuthandizira Kugwiritsa Ntchito Zaukadaulo Wapamwamba Molondola Ndi Kudalirika
Chidule
Aluminiyamu okusayidi (Al2O3), yomwe imadziwika kuti alumina, ndi chinthu chopangidwa ndi ceramic chomwe chimagwiritsidwa ntchito kwambiri m'mafakitale ambiri apamwamba chifukwa cha mphamvu zake zapadera za dielectric, kukhazikika kwa kutentha, kusakhala ndi mphamvu kwa mankhwala, komanso kuuma kwa makina. Pepalali likufotokoza za makhalidwe ofunikira, ntchito, ndi ukadaulo wa alumina woyera kwambiri, poganizira kwambiri ntchito yake yofunika kwambiri pakuyika ma semiconductor ndi zokutira za batri ya lithiamu-ion. Kuphatikiza apo, likuwonetsa luso lopanga ndi kupereka la UrbanMines Tech., wopanga wamkulu waku China wodzipereka pantchito zabwino, zosintha, komanso ntchito zodalirika zotumizira kunja.
1. Chiyambi
Alumina si chinthu chongopangira aluminiyamu yokha; ndi maziko a zinthu zamakono zamakono zopangira zinthu zamakono. Kuyambira pa ma microelectronics ndi malo osungira mphamvu mpaka ma optics, catalysis, ndi zophimba zoteteza, kuphatikiza kwapadera kwa alumina kumapangitsa kuti ikhale yofunika kwambiri. Chifukwa cha kufunikira kwakukulu kwa miniaturization, kugwiritsa ntchito mphamvu moyenera, komanso kudalirika kwambiri m'makina amagetsi ndi mphamvu, kufunikira kwa alumina wopangidwa bwino kwambiri sikunakhalepo kwakukulu kuposa kale lonse.
2. Katundu ndi Mafotokozedwe a Zinthu
Alumina woyeretsedwa kwambiri amagawidwa m'magulu malinga ndi gawo lake, mulingo wa chiyero, kufalikira kwa tinthu tating'onoting'ono, ndi kuchuluka kwa zodetsa, gawo lililonse limapangidwa kuti ligwirizane ndi zofunikira zinazake zogwiritsidwa ntchito.
2.1 Kulamulira Chiyero ndi Chidetso
- Magiredi Oyera Kwambiri: 4N (99.99%), 5N (99.999%), ndi 6N (99.9999%) alumina ndi ofunikira kwambiri pa ntchito zodziwika bwino monga semiconductor encapsulation ndi zigawo za kuwala.
- Kuchepa kwa Alpha-Ray Emission: Chofunika kwambiri pakupanga ma semiconductor kuti tipewe zolakwika zofewa muzipangizo zosungiramo zinthu. Ma specifications nthawi zambiri amafuna kuchuluka kwa Uranium (U) ndi Thorium (Th) pansi pa 3 ppb, ndi kuipitsidwa kochepa kwa Fe, Na, ndi Cl.
- Chitsanzo Chachidule:
- Al₂O₃ zomwe zili: ≥ 99.7%
- SiO₂: <0.15%, Fe₂O₃: <0.1%, Na₂O: <0.1%
- Chinyezi: < 0.1%, Kutayika pa kuyatsa: < 0.1%
2.2 Kukula kwa Tinthu ndi Kapangidwe kake
Mapulogalamu ogwiritsira ntchito amalamula granulometry yolondola:
- Spherical Alumina: Masayizi a D50 kuyambira 1 µm mpaka 45 µm (monga, 2.8 µm, 5.8 µm kuti pakhale kuchulukana kwabwino kwa ma packing mu ma semiconductors).
- Alumina Yosazungulira: D50 kuchokera pa 1.5–10.5 µm, yogwiritsidwa ntchito popanga zokutira ndi zinthu zina zomwe zimakhala ndi malo enaake pamwamba ndi kukhuthala kobiriwira ndizofunikira.
- Malo Ozungulira a BET: Kawirikawiri < 1.5 m²/g ya zokutira kuti zitsimikizire kuti matope ndi omamatira bwino.
2.3 Kapangidwe ka Gawo ndi Makristalo
Alfa-phase alumina (α-Al2O3) ndiye mawonekedwe okhazikika kwambiri pa thermodynamics, omwe amapereka kuuma kwapamwamba, kutentha kopitilira muyeso, komanso kutchinjiriza magetsi. Kukula kwa makristalo a 2–3 µm nthawi zambiri kumafotokozedwa kuti ndi koyenera kuwotcha komanso kapangidwe kake komaliza.
3. Ntchito Zofunika Kwambiri mu Makampani Aukadaulo Wapamwamba
3.1 Kupaka Ma Semiconductor
Alumina yozungulira ya alpha-alpha imagwiritsidwa ntchito ngati chodzaza mu epoxy molding compounds (EMCs) kuti iwonjezere kutentha, kuchepetsa kuchuluka kwa kutentha (CTE), komanso kupereka chitetezo cha radiation. Kugawa kwa tinthu tating'onoting'ono (monga bimodal 2.8 µm ndi 5.8 µm) kumakonzedwa bwino kuti pakhale kulongedza kwakukulu komanso kukhuthala kochepa.
3.2 Zophimba Zolekanitsa Ma Battery a Lithium-Ion
α-alumina yoyera kwambiri (D50 < 4 µm) imagwiritsidwa ntchito ngati chophimba cha ceramic pa zolekanitsa za polima. Imathandizira kukhazikika kwa kutentha, imaletsa kulowa kwa dendrite, komanso imathandizira kunyowa kwa electrolyte, motero imawonjezera chitetezo cha batri ndi moyo wanthawi zonse. Zipangizozo zimasakanizidwa ndi zomangira kuti zipange matope okhazikika kuti zigwirizane.
3.3 Ntchito Zina Zapamwamba
- Ma capacitor: Monga chotchinga cha dielectric chifukwa cha mpata waukulu wa band.
- Kukonza ndi Kusakaniza: Alumina ya pamalo okwera ngati chothandizira kapena chotsukira.
- Zoumba za Kapangidwe: Mu zophimba zosatha kutha, zoyikamo za biomedical (monga, zosinthira chiuno), ndi machitidwe a zida.
- Kupukuta ndi Kupukuta: Ultrafine alumina (Diamantine) yopukutira bwino kwambiri mu optics ndi kupanga mawotchi.
- Chotetezera Kutentha Kwambiri: Monga zophimba zopingasa mu uvuni.
4. UrbanMines Tech.: Mnzanu Wodalirika wochokera ku China
Pamene kufunikira kwa alumina yapadera padziko lonse lapansi kukukula, UrbanMines Tech. imadziwika ngati kampani yodalirika yokhala ndi ukadaulo wozama komanso njira yoganizira makasitomala.
4.1 Ubwino Wopanga Zinthu
- Mizere yathu yopangira zinthu mkati mwa dziko la China ili ndi zida zopangira alumina yoyera kwambiri, yotsika kwambiri komanso yowongolera bwino kwambiri.
- Timapereka kukula kosinthika kwa batch—kuyambira zitsanzo za R&D mpaka kupanga kwathunthu—kutsimikizira nthawi yochepa yoperekera zinthu komanso kupezeka kwa zinthu nthawi yomweyo.
4.2 Kutha Kusintha
- Timasintha mawonekedwe a kuyera, kukula kwa tinthu, mawonekedwe (ozungulira/osakhala ozungulira), ndi ma profiles odetsedwa kuti akwaniritse zofunikira zenizeni za makasitomala.
- Thandizo laukadaulo limaperekedwa kuti lithandize kusankha zinthu ndi kuphatikiza.
4.3 Kudalirika Kotsimikizika ndi Ukatswiri Wotumiza Zinthu Kunja
- Ndi zaka 16 zaukadaulo, tapanga ubale wa nthawi yayitali; makasitomala athu opitilira 60% akhala ogwirizana kwa zaka zoposa 5.
- Tili ndi zilolezo zonse zofunikira zotumizira kunja, kuphatikizapo za zinthu zopezeka m'malo osowa, kuonetsetsa kuti zinthu zapadziko lonse lapansi zikuyenda bwino komanso mogwirizana.
4.4 Ubwino wa "Yopangidwa ku China"
- Mafakitale okhwima ku China amapereka ubwino wopikisana pakupeza zinthu zopangira, ukadaulo wapamwamba wopangira zinthu, komanso kupanga zinthu zomwe zingathe kukulitsidwa.
- UrbanMines Tech. imagwiritsa ntchito mphamvu zimenezi pamene ikutsatira miyezo yapadziko lonse lapansi ya khalidwe (ISO, RoHS, REACH).
5. Mapeto
Aluminiyamu yoyera kwambiri ndi chinthu chofunikira kwambiri chomwe chimapangitsa kuti pakhale zatsopano pa zamagetsi, kusungira mphamvu, ndi zinthu zadothi zapamwamba. Kukwaniritsa zofunikira zolimba za ntchito zamakono sikufuna sayansi yapamwamba yokha komanso unyolo wodalirika komanso wosavuta kupereka. UrbanMines Tech. imaphatikiza zinthu zogulitsa zapamwamba komanso zosintha zomwe zimagwira ntchito bwino komanso ntchito zodalirika zotumizira kunja, zomwe zimapangitsa kuti ikhale mnzawo wabwino kwa makasitomala apadziko lonse lapansi omwe akufuna mayankho abwino a alumina.
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