Tsarin Samar da Alumina da Mahimman Bayanan Fasaha

Alumina (Al₂O₃), muhimmin kayan yumbu na masana'antu, ana amfani dashi sosai a cikin kayan lantarki, injina, sinadarai, da sararin samaniya saboda girman taurin sa, kyakkyawan juriya, juriya mai zafi, da kwanciyar hankali sinadarai. Ayyukan samfuran alumina sun dogara ba kawai akan abubuwan sinadaran su ba har ma akan tsarin su. Tsarin tsari mai dacewa yana tabbatar da cewa jikin alumina kore yana da nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau’in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau‘in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau‘in nau'in) wanda aka tsara shi wanda aka tsara shi don tabbatar da cewa jikin alumina yana da ƙarfi mai kyau, da kuma madaidaicin madaidaicin madaidaicin sintepon na gaba.

A halin yanzu, manyan hanyoyin samar da alumina sun haɗa da busassun latsawa, latsawar isostatic, simintin simintin gyare-gyare, extrusion, da jefar da zafi mai zafi. Busassun busassun shine ɗayan hanyoyin da aka fi sani da su, wanda ya dace da abubuwan da aka haɗa tare da sifofi masu sauƙi da madaidaicin girman girma. Wannan tsari ya haɗa da haɗa foda alumina tare da ƙaramin adadin ɗaure sannan kuma yin amfani da matsa lamba (yawanci dubun zuwa ɗaruruwan MPa) a cikin ƙirar don samar da samfurin. Busassun latsawa yana da fa'idodin ingantaccen samarwa da kayan aiki masu sauƙi, amma yawan rarraba koren jiki na iya zama mara daidaituwa, musamman ga hadaddun abubuwa masu siffa-.

Isostatic latsa ya dace da aikace-aikacen da ke buƙatar babban koren iri iri ɗaya, kamar madaidaicin yumbun bearings da manyan na'urorin lantarki masu ƙarfi{{0}. Wannan tsari ya ƙunshi sanya alumina foda a cikin wani nau'in roba da kuma fallasa shi ga wani babban ruwa mai matsa lamba (kamar ruwa ko mai). Densification yana samuwa ta hanyar matsa lamba (yawanci 100-300 MPa) a duk kwatance. Isostatic latsa yana samar da jikin kore tare da babban ƙarfi da rarraba iri ɗaya, amma yana buƙatar saka hannun jari na kayan aiki da ƙimar samarwa.

Don hadaddun sifofi ko siraran ɓangarorin bango {{0}, zamewar simintin gyare-gyare da ɗigon ɗigon zafi yana ba da fa'ida. Simintin simintin gyare-gyare yana amfani da ruwa na alumina slurry, yana bawa slurry damar yin ƙarfi a hankali ta hanyar shayar da ruwa a cikin filasta. Wannan ya sa ya dace da manyan, sirara - sassan yumbura mai bango. Zafi mai zafi, a gefe guda, yana amfani da zafi don narkar da paraffin - tushen abin ɗaure, yana ƙyale foda alumina ya cika ƙura a ƙarƙashin matsin lamba. Wannan ya sa ya dace da ƙanana, hadaddun, da madaidaicin sassa.

Bugu da ƙari, yayin aikin gyaran alumina, zaɓin ɗaure, rarraba girman barbashi, da sarrafa matsa lamba duk suna da tasiri mai mahimmanci akan aikin samfurin ƙarshe. Tsarin bushewa da bushewa na gaba kuma suna da mahimmanci don tabbatar da koren jikin ya sami ƙimar da ake so da kayan injin bayan sintiri.

A taƙaice, zaɓin tsarin gyare-gyaren alumina yana buƙatar cikakken la'akari da abubuwa kamar siffar samfur, daidaiton girma, ingancin samarwa, da farashi. Tare da haɓaka kimiyyar kayan yumbura, fasahar gyare-gyaren ci gaba irin su gyare-gyaren allura da bugu na 3D sannu a hankali an yi amfani da su don samar da samfuran alumina, suna ƙara faɗaɗa wuraren aikace-aikacen sa.