Industrial Refractory Archives - RS Kiln Refractory Bricks
2021-4-1u2002·u2002However, when magnesia-alumina spinel is added to magnesia materials, it can well prevent the permeability of alkaline residues to refractory materials. And as the amount of magnesia-alumina spinel added increases, the penetration resistance will gradually become stronger, but the additional amount should not exceed 20%.
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