多晶氧化铝纤维制品在均热炉砂封上的应用

Application of polycrystal alumina fibre products for sand seal in soaking pit

以８０％氧化铝纤维为主要原料，加入其它原料和结合剂制成多晶氧化铝纤维砖及用８０％氧化铝纤维和高铝纤维制成混合纤维毡，代替均热炉砂封．密封炉口，应用效果良好。

As sand seal in soaking pit, the materials consists of polycrystal alumina fibre block (made from 80% alumina fibre with other materials and binder) and the blended fibre blanket (with 80% alumina fibre). Good application results have been obtained.