Tee ɗin ƙarfe mai jure wa lalacewa sosai na Alumina mai lanƙwasa: Manyan Kayayyaki da Aikace-aikacen Masana'antu

Babban layin aiki na tea ɗin ƙarfe mai jure lalacewa na alumina shine rufin yumbu wanda aka yi da alumina mai tsarki (α-Al₂O₃). Wannan kayan yana da tsarin kristal mai ƙarfi na corundum, tare da taurin kai har zuwa HRA 85 ko sama da haka (taurin Vickers HV 1000-1600) da kuma yawan 3.6-3.9 g/cm³. Babban aikin rufin yumbu na alumina shine juriya ga mummunan lalacewar ƙwayoyin cuta a wuraren juyawa da haɗuwa na bututun. An gwada juriyar lalacewa ta dakin gwaje-gwaje don ya ninka na ƙarfe manganese sau 266 da kuma sau 171.5 na ƙarfe mai yawan chromium. Bayanan aikace-aikacen masana'antu sun nuna cewa wannan rufin zai iya tsawaita rayuwar bututu fiye da sau goma. Bugu da ƙari, alumina tana da daidaito a fannin sinadarai kuma tana da tsaka tsaki, tana ba da juriya ga acid, alkalis, gishiri, da kafofin watsa labarai na halitta a cikin takamaiman zafin jiki da yawan taro.

Ana amfani da tees ɗin ƙarfe masu jure lalacewa na alumina a sassa daban-daban na masana'antu masu yawan lalacewa. A cikin tsarin wutar lantarki na zafi, ana amfani da su a cikin bututun jigilar foda na kwal, tsarin niƙa, bututun cire toka, da tsarin cire ƙura. A cikin masana'antar haƙar ma'adinai, sun dace da jigilar slurry, jigilar wutsiya, jigilar tattarawa, da kuma tsaftace bututun jigilar kwal a cikin manyan masana'antun shirya kwal. A cikin filin ƙarfe da ƙarfe, ana amfani da su a cikin tsarin cire ƙurar tanderu, layukan jigilar slag, da jigilar kayan aiki yayin ayyukan narkar da su. A cikin masana'antar siminti, ana amfani da su a cikin tsarin jigilar iska ta iska don abinci mai ɗanɗano, clinker, da tokar tashi. A cikin ɓangaren sinadarai, sun dace da bututun da ke jigilar kayan lalata da gogewa. A tashoshin tashar jiragen ruwa, ana amfani da su don jigilar slurry da laka. Bugu da ƙari, ana iya amfani da wannan samfurin don aikace-aikace na musamman kamar jigilar aluminum mai narkewa.

A lokacin zaɓe, dole ne a yi la'akari da abubuwa kamar matsakaicin halaye, girman barbashi, zafin isar da kaya, da kusurwar tasiri don tantance kauri na layin yumbu (yawanci 4-20mm), tsarkin alumina, da hanyar haɗin bututun waje (mai lanƙwasa, walda, da sauransu). Kodayake jarin farko don wannan dacewa ya fi na bututun ƙarfe na yau da kullun, tsawon lokacin sabis ɗinsa da raguwar farashi mai yawa a cikin lokacin aiki da farashin kulawa sun sa ya zama mafita mai inganci ga yanayin lalacewa da tsatsa mai tsanani.