高炉铁口内壁由出铁造成泥料损耗和新充填泥料而形成孔壁的平衡来维持。因此,新充填的泥料与铁口内旧泥料的良好粘结是必要的。本次进行了泥料成分中SiO_2含量对粘结性的影响实验。结果弄清了SiO_2含量增多的泥料粘结性能优良的事实。 1 实验方法在SiO_2—Al_2O_3系列的泥料中,用SiO_2质原料置换AL_2O_3质的原料后,粘结性的评 The inner wall of the blast-furnace iron mouth is maintained by the balance of pore walls caused by tapping loss caused by tapping and fresh filling of mud. Therefore, a good bond between the newly filled mud and the old mud in the taphole is necessary. The experiment carried out the influence of the content of SiO 2 in the clay material on the cohesiveness. As a result, it was clarified that the clay material with an increased content of SiO 2 has excellent bonding properties. 1 Experimental method In the SiO_2-Al_2O_3 series of mud, with SiO_2 raw material replacement of AL_2O_3 quality of the material, the adhesive evaluation