在基质中引入9%特级矾土的基础上再引入2%的尖晶石后，干式料的抗渣渗透性能最佳。
The dry vibration material with the matrix composition of 9% super-grade bauxite and 2% spinel has the best penetration resistance.
其制备方法为：以铝型材厂污泥和碱式碳酸镁为主原料，将原料混合压制成型，经高温反应，反应产物经冷却，得到制备的镁铝尖晶石材料。
The method comprises: mixing the raw materials, pressing for shaping, reacting at high temperatures, and cooling the product to obtain magnesium aluminate spinel material.
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