Vim li cas thiaj xaiv Tabular Alumina rau Kev Ua Haujlwm Zoo Tshaj Plaws?

Tabular alumina yog ib qho ntshiab, tag nrho ntom ntom sintered alpha-alumina cov khoom uas tsis muaj additives. Los ntawm siab -kub sintering saum toj no 1900 degree, cov ntsiav tshuaj loj-zoo li alpha-alumina crystals daim ntawv, tsim ib tug tshwj xeeb microstructure yam ntxwv los ntawm kaw intra-crystalline pores. This dense internal matrix gives the material high thermal shock resistance, low water absorption, and high mechanical strength under extreme temperatures.

Tshuaj purity yog ib qho tseem ceeb uas yuav tsum tau muaj rau siab -kev ua tau zoo refractory aggregates.HUAOmuab tabular alumina nrog siab Al₂O₃ cov ntsiab lus (Ntau dua lossis sib npaug li 99.2%) thiab ultra-Na₂O qib qis (tsawg dua lossis sib npaug li 0.4%), tiv thaiv kev tsim qis - melting- cov theem ntawm qhov kub siab. Cov yam ntxwv no ua rau nws zoo tshaj rau fused alumina nyob rau hauv daim ntawv thov uas yuav tsum tau thermal shock resistance, yaig tsis kam, thiab cov yam ntxwv stability.

Nyob rau hauv kev lag luam kev siv, tabular alumina ua hauj lwm raws li ib tug thawj aggregate nyob rau hauv unshaped refractories thiab zoo li tus cib. Nws yog dav siv hauv steel ladle pururges, nruam casting swb rooj vag, cement kiln preheaters, thiab siab - kub petrochemical reactors. Nws cov thermal creep kuj txo cov qauv deformation, txuas ntxiv lub neej kev sib tw thiab txo cov nqi kho.