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Kiln Furniture & Refractories Filter for Molten Aluminium

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White filter characteristic table

Bond type

M bondG bond91 bond
PurposeHigh purifyGeneralGeneral
Chemical composition Al2O3-B2O3-MgO Al2O3-B2O3-MgO-SiO2 Al2O3-B2O3-MgO-CaO-SiO2
FormCrystalline
(9Al2O32B2O3)
Crystalline
(9Al2O32B2O3)+Glass
Crystalline
(9Al2O32B2O3)+Glass
Length of crystal30µ10µ10µ
B typeC typeD type
Permeability (l/min)1850±1501600±1001450±100
Max. pore size450µ370µ320µ
Average pore size200µ160µ120µ
Porosity37±3%37±3%37±3%

*The G bond permeability is 50 L/min higher.

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