Mu ntchito zamafakitale zotentha kwambiri, kufunikira kwa zipangizo zolimba komanso zosatentha sikungatheke kukambirana. Kuyambira ng'anjo zopangira zitsulo mpaka ma uvuni a simenti, zida zomwe zimakhudzidwa ndi kutentha kwambiri, kukokoloka kwa mankhwala, komanso kuwonongeka kwa makina zimafuna chitetezo chodalirika kuti zitsimikizire kuti ntchito zikuyenda bwino komanso kuti zikhale ndi moyo wautali. Apa ndi pomwecorundum yotayikaimadziwika bwino ngati chinthu chosintha zinthu, chopereka magwiridwe antchito osayerekezeka omwe amakwaniritsa miyezo yokhwima kwambiri yamafakitale.
Corundum castable ndi chinthu chosasunthika chomwe chimapangidwa makamaka ndi corundum (aluminium oxide, Al₂O₃) monga chophatikiza ndi matrix, chophatikizidwa ndi zomangira zapamwamba komanso zowonjezera. Makhalidwe ake apadera amachokera ku mawonekedwe a corundum, omwe ali ndi malo osungunuka opitilira 2000°C, kukhazikika kwabwino kwa kutentha, komanso mphamvu yapamwamba yamakina. Mosiyana ndi zida zachikhalidwe zosasunthika, corundum castable imapereka kusakanikirana kwapadera komanso kulimba—mtundu wake wothira madzi umalola kuyika mosavuta m'mawonekedwe ndi nyumba zovuta, pomwe kapangidwe kake kolimba kamalimbana ndi kuphulika, kusweka, ndi kuukira kwa mankhwala kuchokera ku slags, acids, ndi alkalis.
Chimodzi mwa ubwino waukulu wa corundum castable ndi kusinthasintha kwake m'mafakitale osiyanasiyana. Mu makampani opanga zitsulo, imagwiritsidwa ntchito kwambiri m'ma ladle, ma tundishes, ndi ma blast furnace linings, komwe imapirira kutentha kwachitsulo chosungunuka komanso kusokonekera kwamphamvu kwa slag. Opanga zitsulo amadalira corundum castable kuti achepetse nthawi yogwira ntchito chifukwa cha kulephera kwa zinthu, chifukwa nthawi yayitali yogwirira ntchito imapangitsa kuti zinthu zisamayende bwino komanso kuchepetsa ndalama zogwirira ntchito. Kwa makampani opanga simenti, corundum castable imagwiritsidwa ntchito m'malo osinthira simenti ndi m'ma tertiary air ducts, yomwe imapirira kutentha kwambiri komanso simenti yolimba. Kukana kwake kutentha kumatsimikizira kuti zinthuzo zimakhalabe bwino ngakhale kutentha kusinthasintha kwambiri, vuto lofala popanga simenti.
Kupatula chitsulo ndi simenti, corundum castable imagwira ntchito bwino kwambiri mu metallurgy yopanda chitsulo, kupanga magalasi, ndi mafakitale owotcha zinyalala. Mu mafakitale osungunula opanda chitsulo (monga mkuwa, aluminiyamu), imalimbana ndi dzimbiri kuchokera ku zitsulo zosungunuka ndi ma fluxes, kuteteza zida zofunika kwambiri monga uvuni wosungunula ndi zophikira. Mafakitale agalasi amagwiritsa ntchito corundum castable m'ma regenerator ndi ma ports a uvuni, komwe imasunga umphumphu wa kapangidwe kake pansi pa kutentha kwakukulu komanso kuwonetsedwa ndi mankhwala kuchokera ku galasi losungunuka. Makampani otenthetsera zinyalala amapindula ndi kukana kwake ku mpweya woopsa ndi kusweka kwa phulusa, kukulitsa moyo wa zingwe zotenthetsera ndikuchepetsa zoopsa zachilengedwe.
Chinthu china chochititsa chidwi cha corundum castable ndi momwe imagwirira ntchito mosavuta. Opanga amatha kusintha kapangidwe ka corundum (monga corundum yoyera, corundum yofiirira, corundum yozungulira) ndi zowonjezera kuti zigwirizane ndi zosowa za ntchito inayake. Mwachitsanzo, corundum castable yokhala ndi aluminiyamu wambiri (Al₂O₃ ≥ 90%) imapereka kukana kutentha kwambiri m'malo otentha kwambiri, pomwe simenti yotsika kapena simenti yotsika kwambiri imawongolera kuchulukana ndikuchepetsa ma porosity, kuchepetsa kulowa kwa slag. Kuphatikiza apo, mitundu yopepuka ya corundum castable imapereka kutchinjiriza kutentha popanda kuwononga mphamvu zamakanika, yoyenera mapangidwe amafakitale osunga mphamvu.
Posankha corundum castable, ndikofunikira kugwirizana ndi wogulitsa wodalirika amene amatsatira miyezo yapadziko lonse lapansi ya khalidwe (monga ISO, ASTM). Corundum castable yapamwamba kwambiri imayendetsedwa bwino kwambiri, kuonetsetsa kuti ikugwira ntchito bwino, kapangidwe ka mankhwala kokhazikika, komanso malo odalirika oyika. Ogulitsa omwe ali ndi luso laukadaulo angaperekenso chithandizo pamalopo, kuphatikiza malangizo osankha zinthu, malangizo osakaniza, ndi malangizo okonza pambuyo poyika, zomwe zimapangitsa kuti ndalama zanu ziwonjezeke kwambiri.
Mu mafakitale ampikisano masiku ano, kuchepetsa nthawi yogwira ntchito, kuchepetsa ndalama zokonzera, komanso kukonza bwino ntchito ndizofunikira kwambiri. Corundum castable imapereka njira yothandiza kwambiri, yotsika mtengo komanso yokhalitsa pakugwiritsa ntchito kutentha kwambiri. Kukana kutentha, kukana dzimbiri, komanso kusinthasintha kwake kumapangitsa kuti ikhale chinthu chofunikira kwambiri kwa mafakitale omwe akufuna kupititsa patsogolo kupanga ndi kudalirika.
Kaya mukugwiritsa ntchito mphero yachitsulo, fakitale ya simenti, fakitale yagalasi, kapena malo otenthetsera zinyalala, corundum castable ingasinthe ntchito zanu zotentha kwambiri. Gwiritsani ntchito ndalama mu corundum castable yabwino lero ndikuwona kusiyana kwa magwiridwe antchito a zida, moyo wautali, komanso zotsatira zabwino. Lumikizanani ndi gulu lathu la akatswiri otsutsa kuti mudziwe zambiri za njira zathu zosinthira corundum castable zomwe mwasankha ndikutenga gawo loyamba pakukonza njira zanu zamafakitale.
Nthawi yotumizira: Novembala-14-2025
