The main raw materials for the production of mullite sillimanite bricks are synthetic mullite and sillimanite materials, which are obtained by high-temperature sintering. The product is divided into two grades: MG-65, MG-70, and MG-65 with Al2O3 65% and MG-70 with Al2O3 70%. The Fe2O3 content of the product is low, ranging from 0.8% to 1.0%, with high compressive strength above 1600 ℃, low rate of change in the firing line, 1500 ℃ * 2h 0~+0.5%, good thermal shock stability, and water cooling at 1100 ℃>20 puta. Najvažnija značajka proizvoda je njegova jaka otpornost na trošenje i otpornost na taloženje ugljika. Uglavnom se koristi u gornjim i srednjim dijelovima okna visokih peći i drugih visokotemperaturnih industrijskih peći za otpornost na brzo hlađenje i zagrijavanje, otpornost na habanje i druga područja.
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