Pali mitundu iwiri ya zipangizo zopangira aluminiyamu, imodzi ndi "fast ufa" yopangidwa ndi trialumina kapena Bayer stone, ndipo ina imapangidwa ndi aluminiyamu kapena aluminiyumu mchere kapena zonse nthawi imodzi.
X, ρ-aluminium ndi kupanga X, ρ-alumina
X, ρ-alumina ndiye chinthu chachikulu chopangira mipira ya aluminiyamu, kapena FCA mwachidule. Ku China, amatchedwa "fast release powder" chifukwa cha aluminiyamu ufa wopangidwa ndi njira yowonongeka mofulumira.
X,ρ-alumina inapezeka mu 1950 ndipo inatsimikiziridwa ndi ASTM mu 1960. M'zaka za m'ma 1970, x ndi Ulaya. Chinsinsi X, ρ -alumina luso mofulumira madzi m'thupi, kawirikawiri fluidized bedi riyakitala, kumene kutentha bedi amalamulidwa ndi kuyaka mpweya kapena madzi. Mu 1975-1980, Tianjin Institute of Chemical Makampani bwinobwino anayamba kuyimitsidwa Kutentha Kutentha kudya anavula luso kupanga ndi makhalidwe a luso Chinese. Anagwiritsa ntchito chuluni riyakitala, anawonjezera youma ndi wosweka aluminiyamu hydroxide, ndipo anapanga osakaniza X-alumina ndi ρ-alumina ndi kung'anima Kuwotcha 0.1 ~ 10s mu ng'anjo mofulumira kutaya madzi m'thupi.
Nthawi yotumiza: Apr-01-2023
