Makampani opanga zitsulo ndi maziko a zomangamanga padziko lonse lapansi, komabe amagwira ntchito m'malo otentha kwambiri padziko lonse lapansi. Kuyambira kutentha kwakukulu kwa chitsulo chosungunula mpaka kulondola kwa kupangira zitsulo, zida zofunika kwambiri monga ma converter, ma arc furnaces amagetsi, ndi ma blast furnaces amakumana ndi mavuto osatha: ayenera kupirira kutentha kosalekeza komwe nthawi zambiri kumapitirira 1,600°C, kuphatikiza ndi kukokoloka kwamphamvu kuchokera ku slag yosungunuka ndi chitsulo chotentha. Mikhalidwe yovuta kwambiri iyi imapangitsa kuti zinthu zosasinthika zikhale zofunikira kwambiri pa zinthu zoteteza - zigawo zoteteza zomwe zimateteza zida ku kuwonongeka - komanso pakati pa zosankha zonse,njerwa za magnesium-chromiumikubwera ngati yankho lodalirika komanso lomaliza.
Njerwa za magnesium-chromium zili ndi malo awo osayerekezeka mumakampani opanga zitsulo chifukwa cha zinthu zitatu zazikulu, zosagonjetseka zomwe zimathetsa mavuto onse akuluakulu opanga zitsulo zotentha kwambiri. Choyamba, kukana kwawo moto kwapadera kumasintha kwambiri chitetezo ndi magwiridwe antchito: ndi mphamvu yolimba kuposa 1,700°C, njerwa izi zimasunga mawonekedwe awo ngakhale m'zipinda zotentha kwambiri zopangira zitsulo. Mosiyana ndi zinthu zosalimba zomwe zingafewetse kapena kusungunuka kutentha kwambiri, njerwa za magnesium-chromium zimachotsa chiopsezo cha kulephera kwadzidzidzi kwa zida, zomwe zingayimitse mizere yopanga ndikupangitsa kuchedwa kokwera mtengo. Chachiwiri, kukana kwawo kwabwino kwambiri kwa slag kumathetsa mwachindunji vuto lalikulu kwambiri la kukonza zitsulo. Zopangidwa ndi magnesium oxide ndi chromium oxide yoyera kwambiri, njerwazi zimapanga chotchinga cholimba, chosalowa madzi chomwe chimaletsa slag za alkaline ndi acidic - zinthu zomwe zimapangidwa ndi zitsulo zomwe zimawononga slag zachikhalidwe. Kukana kumeneku kumawonjezera kwambiri moyo wa slag za ng'anjo ndi 30% kapena kuposerapo poyerekeza ndi slag zachizolowezi, kuchepetsa ndalama zosinthira nthawi zambiri ndikuchepetsa nthawi yogwira ntchito yosakonzekera. Chachitatu, kukhazikika kwawo kwa kutentha kumapangitsa kuti zinthu zizikhala bwino nthawi zonse. Pamene ng'anjo ikuyamba kapena kuzimitsa, kutentha kumatha kusinthasintha ndi madigiri mazana ambiri pakapita nthawi yochepa—kupsinjika komwe kumayambitsa njerwa zambiri kusweka kapena kuphulika. Komabe, njerwa za magnesium-chromium zimayamwa kusinthasintha kumeneku mosavuta, kusunga mipata yonse ndi kupanga bwino popanda zosokoneza.
Makhalidwe abwinowa amapangitsa njerwa za magnesium-chromium kukhala zofunika kwambiri pa gawo lililonse lofunika kwambiri popanga zitsulo, kuyambira kukonza zinthu zopangira mpaka kupangira komaliza. Mu ma converter ndi ma arc furnaces amagetsi, komwe chitsulo chimasungunuka ndikukonzedwa, njerwa zimazungulira makoma amkati, kupirira kukanda mwachindunji kuchokera ku chitsulo chosungunuka ndi slag yowononga. Chitetezo ichi chimalola ng'anjo kugwira ntchito bwino kwambiri kwa nthawi yayitali, ndikuwonjezera kutulutsa kwachitsulo tsiku ndi tsiku. Mu zidebe—zombo zazikulu zomwe zimanyamula chitsulo chosungunuka kuchokera ku ng'anjo kupita ku makina oponyera—njerwa za magnesium-chromium zimagwira ntchito ngati choyikapo champhamvu. Zimaletsa kutayika kwa kutentha komwe kungawononge ubwino wa chitsulo ndikuletsa kutuluka kwa madzi, kuonetsetsa kuti chitsulo chosungunukacho chikufika pagawo lotsatira bwino kwambiri kuti chigwiritsidwe ntchito pansi monga kugwedezeka kapena kupangira. Ngakhale mu ng'anjo zophulika, mtima wopanga chitsulo, njerwa izi zimateteza madera ofunikira apamwamba ndi otsika ku kuwukira kwa mpweya wotentha kwambiri (mpaka 2,000°C) ndi slag yosungunuka, zomwe zimapangitsa kuti ntchito yanthawi yayitali komanso yokhazikika yomwe ndi yofunika kwambiri kuti chitsulo chiperekedwe nthawi zonse.
Kwa opanga zitsulo omwe akuyesetsa kukweza zokolola, kuchepetsa ndalama zogwirira ntchito, komanso kukhala ndi mpikisano, kusankha njerwa zapamwamba za magnesium-chromium si njira yokhayo—ndi chinthu chofunikira. Njerwa zathu za magnesium-chromium zimapangidwa ndi njira zowongolera khalidwe, pogwiritsa ntchito zipangizo zapamwamba zomwe zimayesedwa mwamphamvu kuti zikwaniritse miyezo yapadziko lonse lapansi. Zogulitsa zathu, zodalirika ndi mafakitale otsogola achitsulo ku Asia, Europe, ndi North America, zili ndi mbiri yotsimikizika yopereka magwiridwe antchito okhazikika, ngakhale m'malo ovuta kwambiri opangira. Gwirizanani nafe lero, ndipo lolani yankho lathu lotsogola lopanda moto m'makampani likulimbikitse njira yanu yopangira zitsulo, kuchepetsa nthawi yogwira ntchito, ndikukuthandizani kuti mukwaniritse kukula kokhazikika komanso kwanthawi yayitali.
Nthawi yotumizira: Okutobala-22-2025
