Tukwanen Alumina wani nau'in tukwanen injiniya ne, kuma amfani da kayayyakin yumbu na yau da kullun ya bambanta sosai. Tukwanen Alumina kuma ana kiransu tukwanen da ke jure lalacewa, saboda yana da juriyar lalacewa mai kyau, juriyar tsatsa, juriyar zafin jiki mai yawa, don haka ana amfani da shi sosai a cikin ƙarfe, kwal, hakar ma'adinai, siminti, sinadarai da sauran masana'antu, kyakkyawan zaɓi ne don juriyar lalacewa na masana'antu.
Tsarin yin yumburan alumina gabaɗaya an raba shi zuwa matakai da dama: shirya foda, matsewa, da kuma yin sintering.
Domin yin yumbu masu jure lalacewa tare da kyakkyawan aiki, ya zama dole a zaɓi foda mai kyau na alumina, wanda girman barbashi yawanci shine 1μm ko ƙasa da haka. A cikin tsarin shirya foda, ya kamata a ƙara ƙarin abubuwa daban-daban don shirya foda mai halaye daban-daban.
Ana iya ƙirƙirar yumburan Alumina ta hanyoyi daban-daban. Hanyoyin da aka fi amfani da su sune busasshen matsi, grouting molding, extrusion, isostatic mapping molding, hanyar allura, hanyar birgima, hanyar matsi mai zafi, hanyar gel, da sauransu. Samar da gyale shine mabuɗin shirya yumbu masu jure lalacewa mai ƙarfi. Gabaɗaya, yumburan alumina da aka yi ta hanyar busasshen matsi da tsarin matsi mai isostatic suna da ƙarfi da juriya ga lalacewa.
Yin amfani da yumbun alumina shi ma muhimmin mataki ne. Daga cikinsu, kula da zafin sintering shine babban abin da ke ƙayyade yawan yumbu, tsari da tsawon lokacin aiki.
Kowace mataki na samar dayumburan aluminayana buƙatar kulawa da gano ƙwararru, domin samun kyakkyawan yumbu mai jure lalacewa.
Lokacin Saƙo: Afrilu-17-2023