FIELD: metallurgy.
SUBSTANCE: invention relates to production of refractory materials. Charge contains, wt.%: cast iron chips 5.5-6.5; refractory clay 75.5-76.0; sillimanite 16.5-17.5; sulphite-yeast wash 1.0-1.5.
EFFECT: technical result is the improvement of strength of refractory materials.
1 cl, 1 tbl
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