Umthelela wokwengezwa kwe-graphite ekusebenzeni kwe isitini sekhabhoni ye-magnesia

Ngokuvamile, inani le-graphite elengezwe ezitini ze-MgO-C kufanele libe phakathi kuka-15% no-20%. Lapho inani lokwengezwa liphezulu, ukuchithwa kwezitini ze-MgO-C kuvame ukwanda. Lokhu kungenxa yokuthi lapho okuqukethwe kwe-graphite kwanda, ukwakheka kwesitini se-decarburized kuba mahhadla. Ngenxa yalokho, ukuguguleka kwe-slag ngeyunithi ngayinye umthamo wezitini ukwanda, okwenza i-MgO incibilike Inani lokulahlekelwa ku-slag liyasheshisa; ngesikhathi esifanayo, njengoba inani le-graphite landa, inani lomlotha olethwayo liyanda, ngaleyo ndlela linciphisa ukumelana nokugqwala kwesitini. Ngaphezu kwalokho, uma inani le-graphite elingeziwe liningi kakhulu, kunzima ukwenza ngesikhathi sokukhiqiza, futhi umkhiqizo kulula uku-oxidize ngesikhathi sokusetshenziswa. Ku-carbon-bonded refractory material, uma okuqukethwe kwekhabhoni kungaphansi kuka-10%, inethiwekhi ye-carbon eqhubekayo ayikwazi ukwakhiwa emkhiqizweni, futhi izinzuzo zekhabhoni azikwazi ukusetshenziswa ngempumelelo; ngokombono wokuzinza kokushaqeka okushisayo, inani le-graphite elengeziwe lingaphansi kuka-10% ~ 15%, ukumelana nokushaqeka okushisayo kwesitini kuyancipha kakhulu.