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一、目前鞍钢主要耐火材料的使用情况和国外这些耐火材料的最近发展趋势(一)平炉用耐火材料1.炉顶为了不断地适应平炉采取强化冶炼的需要,近年来各工业先进国家都在迅速推广碱性炉顶,至1960年,苏联采用碱性炉顶已有95%,日本81.5%,美国22%。我国在1955年就试用了镁铬炉顶,1958年又试制和试用了镁铝炉顶砖,目前全国的大型碱性平炉都采用了碱性炉顶。几年来,经过一系列的实验研究和管理上的改进,炉顶寿命迅速上升,1963年上半年炉顶平均寿命达372炉,其中第二季度为395炉,在第四季度出现622炉。因此通过实际的考验证明镁铝砖完全可以
First, the current use of Anshan Iron and steel refractories and the recent development trend of these refractories (A) refractory materials used in open hearth 1. In order to continue to adapt to the hearth furnace to take the need to strengthen the smelting, in recent years, all advanced industrial countries are rapidly The promotion of basic roof, to 1960, the Soviet Union has adopted 95% of the basic roof, Japan 81.5%, the United States 22%. China in 1955 tried the magnesia chrome roof, in 1958 trial and trial of magnesia furnace roof brick, the country’s large alkaline furnace are used alkaline roof. Over the past few years, after a series of experimental and managerial improvements, the roof life rapidly increased. In the first half of 1963, the average roof life reached 372 furnaces, with 395 furnaces in the second quarter and 622 furnaces in the fourth quarter. Therefore, the actual test proved that magnesium aluminum brick can be completely