Chromium Corundum Refractory Products
bayanin samfurin
Danyen kayan da aka yi amfani da su a cikin jerin samfuran chromium corundum shine ingantaccen bayani wanda aka haɗa ta wurin narke mai zafi na alumina da chromium oxide a cikin wani yanki.Babban albarkatun kasa shine babban bauxite (ko masana'antu alumina) ta ƙara adadin chromite da ya dace da rage shi.Ana narkar da wakili a cikin matsanancin zafin jiki a cikin tanderun lantarki, kuma a zuba narkakkar chromium a cikin kwandon a sanyaya a hankali, sannan a yi shi bayan an cire shi..
Chromium corundum refractory kayayyakin haɗe-haɗen simintin gyaran kafa chrnmecorundum refrac-tory kuma ana kiransa Fused cast chrnmecorundum refrac-tory.Samfuran da aka haɗa da simintin simintin gyare-gyare wanda ya ƙunshi ingantaccen bayani na alumina da chromium oxide da ƙaramin adadin spinel, wanda ya ƙunshi 60% zuwa 87% na alumina da 30% na chromium oxide.Girman girma shine 3.2-3.9g / cm3;, ƙarfin zafin jiki ya fi girma, idan aka kwatanta da sauran nau'in corundum refractories, juriya na lalata gilashin gilashi shine mafi karfi.Ana iya amfani da shi azaman rufin kiln wanda ke cikin hulɗa kai tsaye tare da narkakkar gilashin.
Chromium corundum refractories ana amfani da ko'ina a cikin rufi na kwal-ruwa slurry pressurized gasifier, ladle refining makera da carbon baki reactor rufi, petrochemical masana'antu slag gasification makera rufi da gilashin narkewa tanderu rufi, da dai sauransu, kuma za a iya amfani da dumama The Chrome. corundum dandali tubali ga makera abu ne na makawa a cikin high zafin jiki masana'antu.
AL203 da Cr2O3 suna cikin tsarin corundum, radius na Cr3+ shine 0.620, kuma radius na AL3+ shine 0.535.Bisa ga dabarar ƙwaƙƙwaran:
Tun da bambanci tsakanin Cr3 + da AL3 + ion radii kasa da 15%, Cr ions iya ci gaba da kuma mara iyaka maye gurbin AL a cikin AL203 lattice, forming wani mara iyaka m maye m bayani.
Tsarin crystal na Cr203 da AL203 iri ɗaya ne, kuma radius na ionic ya bambanta da 13.7%.Saboda haka, Cr203 da AL203 na iya samar da ingantaccen bayani mara iyaka a babban zafin jiki.Daga hangen nesa na layin lokaci mai ƙarfi, tare da haɓaka abun ciki na Cr203, yanayin zafin da yanayin ruwan ya fara bayyana shima yana tashi.Sabili da haka, ƙara adadin da ya dace na Cr203 zuwa AL203 na iya inganta haɓaka kayan aikin injiniyoyi da ayyukan sabis na zafin jiki na corundum refractories.
Cr203 na iya samar da wani babban fili mai narkewa ko eutectic tare da mafi girman zafin jiki mai narkewa tare da yawancin oxides na kowa.Alal misali, FeO · Cr203 spinel samar da Cr203 da Feo yana da wani narkewa batu kamar yadda 2100 ℃;Cr203 da AL203 na iya samar da ingantaccen bayani mai ci gaba.Bugu da ƙari, Cr203 na iya ƙara yawan danko na slag da kuma rage yawan ruwa na slag, don haka rage lalata na slag zuwa refractory.Sabili da haka, ƙara adadin da ya dace na Cr203 zuwa kayan haɓakawa zai iya rage girman tsarin tsarin kayan rufin tanderun da ke haifar da lalatawar slag.Babu wani tabbataccen daidaituwa tsakanin iyawar lalatawar slag zuwa chromium corundum refractories da asali na slag.
Bulo na chromium corundum da aka yi da kayan chromium corundum refractory yana cikin tanderun.Lokacin da tushen slag shine 2, tubalin chromium corundum yana da mafi kyawun juriya ga lalata slag baƙin ƙarfe;lokacin da asali na slag shine 0.2, zurfin lalata na jan karfe zuwa tubalin chromium corundum Mafi ƙanƙanta;lokacin da tushen slag ya kasance 0.35, zurfin lalatar tin slag zuwa bulo na corundum na chrome shine mafi ƙanƙanta;lokacin da tushen slag gubar shine 0.3, kauri daga cikin ragowar shine mafi girma kuma zurfin matakin amsawa, da yashwa Layer da shigar ciki Layer shine mafi ƙanƙanta.Lokacin da alkalinity slag shine 0.37, juriya na lalata tubalin chrome corundum shine mafi kyau.
