1. Na ituvatuva ni iyaya kei na itovo ni ituvatuva
1.1 Alumina na lewena kei na karisitala ni iwasewase ni veisau
( Biriki ni icurucuru ni alumina)
Alumina lining blocks are thick, crafted refractory ceramics mainly composed of aluminum oxide (Al two O SIX), with content typically varying from 50% to over 99%, directly influencing their efficiency in high-temperature applications.
The mechanical strength, vorata na korosi, and refractoriness of these bricks enhance with higher alumina focus as a result of the advancement of a durable microstructure dominated by the thermodynamically secure α-alumina (diamond) ivakatagedegede.
During manufacturing, precursor products such as calcined bauxite, integrated alumina, or artificial alumina hydrate go through high-temperature shooting (1400 ° C– 1700 ° C), advertising stage transformation from transitional alumina kinds (c, d) to α-Al Two O THREE, which displays phenomenal solidity (9 on the Mohs range) and melting factor (2054 ° C).
The resulting polycrystalline structure contains interlocking corundum grains embedded in a siliceous or aluminosilicate glassy matrix, the make-up and quantity of which are thoroughly regulated to balance thermal shock resistance and chemical toughness.
Small ingredients such as silica (SiO 2), titania (TiO 2), or zirconia (ZrO ₂) may be introduced to change sintering habits, boost densification, or enhance resistance to certain slags and fluxes.
1.2 Microstructure, Porosi, and Mechanical Integrity
The efficiency of alumina lining blocks is seriously dependent on their microstructure, especially grain size distribution, pore morphology, and bonding phase attributes.
Optimum bricks display great, consistently distributed pores (closed porosity chosen) and very little open porosity (
Kabani ni tekinolaji ni alumina., Ltd vakanamata ki na vakadidike kei na veivakatorocaketaki ., buli kei na volitaki ni pauta ni aluminium oxide, iyaya ni okisaiti ni aluminiumi, tavaya okisaiti ni aluminiumi, kei na so tale., veiqaravi ena iyaya vakalivaliva, seramiki, kemikali kei na so tale na bisinisi. Me tekivu mai na kena tauyavutaki ena […] 2005, na kabani sa vakadeitaka me vakarautaka vei ira na kasitama na ivoli vinaka duadua kei na veiqaravi .. Kevaka o vakasaqara tiko na ivakatagedegede cecere . alumina al2o3., Kerekere mo ni veitaratara kei keda.
Tagi: Biriki ni icurucuru ni alumina, alumina, okisidi ni alumina
Na itukutuku kece kei na iyaloyalo e tiko ena Initaneti .. Kevaka e tiko eso na leqa ni dodonu ni taukeni ., yalovinaka veitaratara kei keda ena gauna me bokoci ..
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