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近半个世纪,铝在钢中有两个大不相同的脱氧常数,已由世界范围内的研究者用资料所反复证实。例如,在1600℃,Kd=(％Al)~2(％O)~3值经测定为10~(-14)或10~(-9),这取决于试验如何做。其中的第一个数据获得广泛的承认,是由于经过热力学计算和实验室的实验所确认。第二个常数,也是在模拟实际炼钢条件的长期实验中反复得到验证的。最近用定氧探头试验表明,后一个常数也许正是确的。于是,开始了对这“一段空白”的一种探索,以便用通常的
For nearly half a century, aluminum has two very different deoxidation constants in steel that have been repeatedly confirmed by researchers worldwide. For example, the Kd = (% Al) ~ 2 (% O) ~ 3 value is determined to be 10 ~ (-14) or 10 ~ (-9) at 1600 ° C, depending on how the test is done. The first of these data was widely recognized due to the thermodynamics calculations and lab experiments. The second constant is also repeatedly verified in long-term experiments that simulate actual steelmaking conditions. Recent experiments with oxygen probes show that the latter constant may be exact. Thus, an exploration of this “gap” began, so as to use the usual ones