电渣重熔10Ni3MnCuAl钢中Al元素的均匀性控制

Uniformity Control of Aluminum Element During Electroslagremelting of 10Ni3MnCuAl Steel

通过对10Ni3MnCuAI两组电渣重熔试验后的取样数据进行分析,钢锭头、尾部AI元素烧损严重且成分不均的主要原因在于渣料中的不稳定变价氧化物以及重熔过程中的气相传氧导致AI的氧化反应。冶金热力学计算表明,所引起AI元素烧损的化学反应均向右进行,通过在渣中及重熔过程中补加AI粉使得电极在重熔过程中AI元素烧损得到有效控制,钢锭中AI元素分布更加均匀。

Through the analysis on the data of sampling after two groups of Electroslagremelting experiment of 10Ni3MnCuAI Steel,the reasons for excessive burning loss of AI element and deviation of AI content both ends of the ingots are unstable oxides of changed valence in slag and AI of oxidation reaction for oxygen transfers during electroslagremelting,thermodynamics of metallurgy show that chemical formula with burning loss of AI element reacted from the left to the right,addition of an amount of AI power into slag and during electroslagremelting had been founded for controlling the excessive burning loss of AI element and decreasing the AI deviation of two ends of ingot.