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Mullite castable base formula

Mullite castable base formula

The basic formula of mullite castable is 68.0% of 7~0mm pyrocarbides, 23.0% of alumina micropowder, 3.7% of silica micropowder, 5% of calcium aluminate cement, 02% of compound water reducing agent and 0.1% of anti-cracking fiber. The basic formula is recorded as 0# formula. On the basis of 0# formula, 2.5%, 5.0%, 7.5% and 10% of silicon carbide are introduced respectively, and the dosage of alumina micropowder is reduced accordingly, respectively recorded as 1#~ 4# formula.

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