在钢材的生产过程中,从钢锭初轧到最后轧制成材,需要对坯料进行多次加热,而每次加热钢锭(坯)表面都会生成氧化铁皮而造成钢的损耗。一般情况下,钢在整个轧制成材过程中其总氧化率可达4～5％。我国1986年钢产量为5190万吨,若按5％的总氧化率计算,则氧化烧损量为260万吨,相当于一个中型钢铁厂的年钢产量。另外,钢在加热过程中的氧化,不仅增加了金属的损 In the process of steel production, from initial ingot to final rolled ingot, it is necessary to heat the ingot several times, and each time the surface of the ingot (slab) is heated, oxide scale will be formed and the steel will be lost. Under normal circumstances, the steel in the whole process of rolling the total oxidation rate of up to 4 ~ 5%. China’s steel output in 1986 was 51.9 million tons. If calculated at a total oxidation rate of 5%, the oxidation loss would be 2.6 million tons, equivalent to the annual steel output of a medium-sized steel plant. In addition, the oxidation of steel during heating not only increases the loss of the metal