Izitini ze-Magnesia chromeziyizinto ezibalulekile zokuphikisa ama-oven ashisa kakhulu, asetshenziswa kabanzi kuma-oven ajikelezayo esimende, kuma-oven okwenza insimbi, kuma-oven angena-ferrous metallurgy kanye nama-oven engilazi. Ukusebenza kwawo kunquma ngqo impilo yesevisi yesitofu, ukusebenza kahle kanye nokuphepha kokukhiqiza. Ukuze ukhethe izitini ze-magnesia chrome ezifanele, kufanele uvumelanise ngokugcwele izakhiwo zazo nezici zokusebenza kwesitofu—lesi yisihluthulelo sokunciphisa izindleko zokulungisa kanye nokwandisa izinzuzo zokusebenza.
Okokuqala, gxila ekushiseni kokusebenza kwesitofu. Ama-oven ahlukene anezidingo zokushisa ezihlukene: izindawo zokushisa zesitofu esijikelezayo sikasimende zifinyelela ku-1500–1650°C, kuyilapho ama-oven kagesi okwenza insimbi engadlula ku-1700°C. Izitini ze-magnesia chrome ezisezingeni eliphezulu kufanele zibe nokuthamba okungaphezu kuka-2000°C kanye nokushisa okuthambisa umthwalo okungaphezu kuka-1550°C ukuze kugcinwe ubuqotho besakhiwo ngaphansi kwamazinga okushisa aphezulu isikhathi eside. Kuma-oven ashisa kakhulu, khetha izitini ze-magnesia chrome ezihlanganisiwe ezihlanganisiwe ezinokuqina okuhle kakhulu kokushisa okuphezulu.
Okwesibili, cabanga ngendawo yamakhemikhali yesitovu. Izinto zokucubungula i-alkaline (njenge-cement clinker) zidinga izitini ezinokumelana okuqinile kwe-alkali, kuyilapho lezo eziphatha insimbi encibilikisiwe noma i-asidi slag zidinga ukumelana okuhle nokugqwala kwe-asidi. I-Magnesia (MgO) ezitini ze-magnesia chrome inikeza ukumelana kwe-alkali, kuyilapho i-chromium oxide (Cr₂O₃) ithuthukisa ukumelana ne-asidi, okwenza zifanelekele izindawo eziyinkimbinkimbi zamakhemikhali. Kumasitovu anokuguguleka kwe-slag okuvamile, khetha izitini ezine-porosity ephansi (porosity <20%) ukuvimbela ukungena kwe-slag.
Okwesithathu, hlola ukumelana nokushaqeka kokushisa ngokusekelwe ekushintsheni kwezinga lokushisa. Izitsha zokushisa ezinemijikelezo evamile yokuqala nokuma (njengezitofu zokuncibilikisa ezingenayo insimbi) zidinga izitini ezingamelana nokushintsha kwezinga lokushisa okusheshayo ngaphandle kokuqhekeka. Izitini ze-chrome ze-magnesia ezihlanganisiwe kancane zinikeza ukumelana okuhle kakhulu nokushaqeka kokushisa, okwenza zibe zilungele izimo ezinjalo, kuyilapho izinhlobo ezihlanganisiwe ngqo zilinganisela ukusebenza kanye nezindleko zama-kiln anokushisa okuzinzile.
Ngaphezu kwalokho, fanisa uhlobo lwezitini nezindawo ezithile ze-oven. Ezindaweni ezivame ukuguguleka njengemilomo ye-oven noma imigqa ye-slag, khetha izitini ezinamandla aphezulu ezinamandla okuchoboza abandayo angu-≥35MPa. Ezindaweni ezihlala njalo, izitini ze-common magnesia chrome ezingabizi kakhulu zisebenza kahle, kuyilapho izindwangu zokusebenza eziyinhloko zidinga izinhlobo eziqondile noma ezihlanganisiwe ezisebenza kahle kakhulu.
Ukukhetha izitini ze-magnesia chrome ezifanele akukhona nje kuphela ngekhwalithi yezinto ezibonakalayo—kumayelana nokuhambisana kahle nezici ze-oven. Izitini zethu ze-magnesia chrome ezisezingeni eliphezulu, ezitholakala ngezinhlobo ezahlukene nosayizi abakhelwe ngokwezifiso, zenzelwe ukuhlangabezana nezidingo ze-oven ezahlukahlukene, ukuqinisekisa impilo yenkonzo ende nokusebenza okuzinzile. Xhumana nathi namuhla ukuthola ikhambi elenzelwe wena le-oven yakho.
Isikhathi sokuthunyelwe: Ephreli-08-2026
