Huachen Refractory

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Fused cast alumina block

The fused cast alumina block contains little impurities such as Fe2O3, TiO2, and have almost no matrix glass phase. Therefore, they rarely cause pollution to the glass melt.

Other name: Fused cast corundum block, α-β block

Model Number: HCR α-alumina block,HCR β-alumina block,HCR α-β alumina block

Certification: ISO9001-14001

Minimum Order Quantity: 5 MT

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Fused Cast Alumina Block

Description:

Fused cast alumina block also named fused cast corundum block, is a corundum refractory products with corundum as the main crystal phase and made by melt casting method. Including α-Al2O3, β-Al2O3 and α-β-Al2O3 three kinds of corundum products with different crystal phases.

Advantage:

Good high temperature volume stability, certain resistance to glass melt erosion and washout resistance

Application:

Glass melting furnace


Fused Cast Block Physical And Chemical


Itemα-corundumβ-corundumα-β corundum
Chemical   CompositionAl₂O₃ %98.5≥ 92≥ 95
SiO₂ %0.4≤ 0.5≤ 0.5
Na₂O %0.95.5-7.53.2-4.5
Crystalline Phaseα-corundum90-95-40-50
β-corundum5-10> 97.550-60
Glass   phase0-1< 1≤ 2
Bulk Density   g/cm³  (WS)≥ 3.6≥ 2.9≥ 3.4
Cold Crushing   Strength Mpa≥ 250≥ 30≥ 200
Therm.Exp   (1000℃) %0.880.650.7
Therm.Exp   (1500℃) %1.321.011.09



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