钾/钠在钢铁中的应用

APPLICATION OF POTASSIUM/SODIUM IN IRON AND STEEL

自作者1981年发现钾/钠可使白口铁中碳化物团球化以来,在实验与生产应用中,对钾/钠在多种钢铁中的作用进行了一系列的研究。本文叙述研究结果,对冶金专业文献中钾/钠脱氧能力的评价同普通化学中论述相矛盾的现象提出了看法,并粗略地讨论了钾/钠在钢铁中的作用机理。认为钾/钠具有很强的脱氧作用,因而碳化物球团化应归功于脱氧,加入钾/钠后,液态铸铁结膜温度明显降低亦脱氧所致。文中还列出了各变质剂在铁水中脱氧作用的测试结果。

Since Auther discovered that the carbide in white iron may be transformed from netted structure into nodular form by the inoculant potassium/sodium(K/Na), the effect of the inoculart on a series of iron and steel materials was studied both experimentally and industrially. The studied result is described, the contradictory on evaluting deoxidization ability of K/Na in chemistry books and relative metallurgy references is analyzed, and the action of K/Na on iron and steel is discussed roughly. Considers that the K/Na possesses strong deoxidization ability, so the carbide spherodizing should be attributied to deoxidizing, the film-forming temperature of liquid iron was obviously decreased with K/Na. Deoxidizing efficient of defferent inoculants was practically measured and compared.