Embonini yokwenza insimbi, i-ladle yensimbi iwumkhumbi obalulekile othwala, obamba, futhi ophatha insimbi encibilikisiwe phakathi kwezinqubo ezahlukene zokukhiqiza. Ukusebenza kwayo kuthinta ngqo ikhwalithi yensimbi, ukusebenza kahle kokukhiqiza, nezindleko zokusebenza. Kodwa-ke, insimbi encibilikisiwe ifinyelela amazinga okushisa afinyelela ku-1,600 ° C noma ngaphezulu, futhi iphinde ihlangane nama-slags anolaka, ukuguguleka kwemishini, kanye nokushaqeka okushisayo—okuletha izinselele ezinkulu ezintweni eziphikisayo ezibekwe ku-ladle yensimbi. Lapha kulaphoizitini ze-magnesium carbon(Izitini ze-MgO-C) zigqama njengesixazululo esikhulu, ziletha ukuqina nokuthembeka okungenakuqhathaniswa kokusebenza kwe-ladle yensimbi.
Kungani Izitini Ze-Magnesium Ikhabhoni Zibaluleke Kakhulu Emazingeni Ensimbi
Izilebhu zensimbi zidinga izinto eziphikisayo ezingamelana nezimo ezibucayi ngaphandle kokuphazamisa ukusebenza. Izitini zendabuko eziphikisayo ngokuvamile ziyehluleka ukuhlangabezana nalezi zidingo, okuholela ekushintshweni njalo, ukuncipha kokukhiqiza, kanye nezindleko ezikhulayo. Izitini ze-Magnesium carbon, nokho, zihlanganisa amandla e-high-purity magnesia (MgO) kanye ne-graphite ukubhekana nayo yonke inselele ebalulekile ye-steel ladle lining:
1. Ukumelana Nezinga Lokushisa Eliphakeme Okungavamile
I-Magnesia, ingxenye ewumgogodla wezitini ze-MgO-C, inephuzu elincibilikayo elicishe libe ngu-2,800°C—elidlula kude izinga lokushisa eliphezulu lensimbi encibilikisiwe. Uma ihlanganiswe ne-graphite (into enokusimama okuhle kakhulu kwe-thermal), izitini zekhabhoni ye-magnesium zigcina ubuqotho bazo besakhiwo ngisho nangaphansi kokuchayeka isikhathi eside ku-1,600+°C yensimbi encibilikisiwe. Lokhu kumelana kuvimbela ukuthambisa kwezitini, ukuwohloka, noma ukuncibilika, okuqinisekisa ukuthi insimbi yensimbi ihlala iphephile futhi isebenza isikhathi eside.
2. I-Superior Slag Corrosion Resistance
Insimbi encibilikisiwe ihambisana nama-slags—byproducts ecebile ngama-oxides (njenge-SiO₂, Al₂O₃, ne-FeO) egqwala kakhulu kuzinza. I-Magnesia ekuzitini ze-MgO-C iphendula kancane ngalawa ma-slags, yenze ungqimba oluminyene, olungangeneli endaweni yezitini oluvimba ukungena okwengeziwe kwe-slag. Ngokungafani nezitini ze-alumina-silica, eziguguleka kalula ngama-slags ane-asidi noma ayisisekelo, izitini zekhabhoni ye-magnesium zigcina ukuqina kwazo, zinciphisa ingozi yokuvuza kwe-ladle.
3. Ukumelana Okumangalisayo Kwe-Thermal Shock.
Amaledi ensimbi ashiselwa ngokuphindaphindiwe (ukubamba insimbi encibilikisiwe) futhi azipholiswe (ngesikhathi sokunakekelwa noma izikhathi zokungenzi lutho)—inqubo ebangela ukushaqeka okushisayo. Uma izinto eziphikisayo zingakwazi ukumelana noshintsho olusheshayo lokushisa, zizoqhekeka, okuholela ekuhlulekeni ngaphambi kwesikhathi. I-graphite ezitini ze-magnesium carbon isebenza "njengesigcinalwazi," idonsa ingcindezi eshisayo futhi ivimbele ukwakheka kokuqhekeka. Lokhu kusho ukuthi izitini ze-MgO-C zingabekezelela amakhulukhulu emijikelezo yokushisisa ngaphandle kokulahlekelwa ukusebenza, inwebe impilo yesevisi yolayini lweladle yensimbi.
4. Izindleko Ezehlisiwe Zokugqoka Nezokunakekela
Ukugqokwa komshini okuvela ekunyakazeni kwensimbi encibilikisiwe, ukunyakaza kwe-ladle, nokukhuhla kwe-slag kungenye inkinga enkulu yezinqamuleli zensimbi yensimbi. Izitini zekhabhoni ye-Magnesium zinamandla amakhulu emishini nobulukhuni, ngenxa yokuhlangana phakathi kwezinhlamvu ze-magnesia ne-graphite. Lokhu kuqina kunciphisa ukuguga kwezitini, okuvumela i-ladle ukuthi isebenze isikhathi eside phakathi kwama-relinings. Ezimbonini zensimbi, lokhu kuhumusha ekunciphiseni isikhathi sokuphumula, izindleko eziphansi zabasebenzi zokushintshwa kwe-refractory, kanye namashejuli okukhiqiza angaguquki.
Izicelo Ezibalulekile Zezitini Zekhabhoni Ye-Magnesium ku-Steel Ladles
Izitini zekhabhoni ye-Magnesium azisona isixazululo esilingana nosayizi owodwa-zifanelana nezingxenye ezahlukene zensimbi yensimbi ngokusekelwe emazingeni athile okucindezeleka:
I-Ladle Bottom nezindonga:Izindonga ezingezansi neziphansi ze-ladle zithintana ngokuqondile, isikhathi eside nensimbi encibilikisiwe nama-slags. Lapha, izitini zekhabhoni ze-magnesium ezixinene kakhulu (ezinokuqukethwe kwe-graphite okungu-10-20%) zisetshenziselwa ukumelana nokugqwala nokuguga.
I-Ladle Slag Line:Umugqa we-slag uyindawo esengozini kakhulu, njengoba ubhekene nokuchayeka okuqhubekayo kuma-slags agqwalayo kanye nokushaqeka okushisayo. Izitini ze-premium ze-magnesium carbon (ezinokuqukethwe okuphezulu kwe-graphite kanye nama-antioxidants angeziwe afana ne-Al noma i-Si) sitshalwe lapha ukuze kwandiswe impilo yesevisi.
I-Ladle Nozzle kanye ne-Tap Hole:Lezi zindawo zidinga izitini ezine-conductivity ephezulu yokushisa kanye nokumelana nokuguguleka ukuze kuqinisekiswe ukugeleza kwensimbi encibilikisiwe okubushelelezi. Izitini ezikhethekile ze-MgO-C ezine-magnesia ehlanjululwe kahle zisetshenziselwa ukuvimbela ukuvala nokwelula impilo ye-nozzle.
Izinzuzo Zezitshalo Zensimbi: Ngaphandle Kokuqina
Ukukhetha izitini ze-magnesium carbon for steel ladle linings kunikeza izinzuzo zebhizinisi ezibonakalayo kubakhiqizi bensimbi:
Ikhwalithi Yensimbi Ethuthukisiwe:Ngokuvimbela ukuguguleka kwemvelo, izitini ze-MgO-C zinciphisa ingozi yezinhlayiya eziphikisayo ezingcolisa insimbi encibilikisiwe—ukuqinisekisa ukwakheka kwamakhemikhali okungaguquki kanye nokukhubazeka okumbalwa emikhiqizweni yensimbi eqediwe.
Ukonga Amandla:Ukushisa okuphezulu kwe-graphite ezitini ze-MgO-C kusiza ukugcina ukushisa ku-ladle, kunciphisa isidingo sokushisisa kabusha insimbi encibilikisiwe. Lokhu kwehlisa ukusetshenziswa kukaphethiloli kanye nokukhishwa kwekhabhoni
Ukuphila Kwesevisi Ye-Ladle ende: Ngokwesilinganiso, izitini zezitini zekhabhoni ye-magnesium zihlala isikhathi eside ngokuphindwe ka-2-3 kunolwelwesi oluvamile lwe-refractory. Ngeladle yensimbi evamile, lokhu kusho ukuxhuma kanye kuphela ezinyangeni ezingu-6-12, uma kuqhathaniswa nezikhathi ezingu-2-3 ngonyaka nezinye izinto.
Khetha Izitini Zekhabhoni Ezisezingeni Eliphezulu Ze-Magnesium Yezinsimbi Zakho Zensimbi
Akuzona zonke izitini ze-magnesium carbon ezidalwe zilingana. Ukuze uthuthukise ukusebenza, bheka imikhiqizo enalokhu:
High-purity magnesia (95%+ MgO okuqukethwe) ukuqinisekisa ukumelana nokugqwala
I-graphite yekhwalithi ephezulu (okuqukethwe komlotha ophansi) ukuze kube ngcono ukumelana nokushaqeka okushisayo
Ama-bonding agents athuthukile kanye nama-antioxidants ukuthuthukisa amandla ezitini futhi avimbele i-graphite oxidation
At Shandong Robert Refractory, sisebenza ngokukhethekile ekukhiqizeni izitini zekhabhoni ze-magnesium ze-premium ezenzelwe izinhlelo zokusebenza ze-steel ladle. Imikhiqizo yethu ingaphansi kokulawulwa kwekhwalithi okuqinile—kusuka ekukhethweni kwezinto ezingavuthiwe kuye ekuhlolweni kokugcina—ukuqinisekisa ukuthi ihlangabezana nezindinganiso eziqine kakhulu zokwenza insimbi. Kungakhathaliseki ukuthi usebenzisa isigayo sensimbi esincane noma isitshalo esikhulu esihlanganisiwe, singakunikeza izixazululo ezenziwe ngokwezifiso zokunciphisa izindleko zakho futhi sithuthukise ukukhiqiza.
Xhumana nathi Namuhla
Ingabe usukulungele ukuthuthukisa i-steel ladle refractories ngezitini ze-magnesium carbon? Xhumana nethimba lethu lochwepheshe be-refractory ukuze uxoxe ngezidingo zakho, uthole isilinganiso esiqondene nawe, noma ufunde kabanzi mayelana nokuthi izitini ze-MgO-C zingayiguqula kanjani inqubo yakho yokwenza insimbi.
Isikhathi sokuthumela: Sep-05-2025
