摘要
介绍了利用非水溶液电解法提取薄带连铸低碳钢中氧化物夹杂的方法,采用带有EDS系统的扫描电镜（SEM）研究了氧化物夹杂的三维形貌和化学成分,并通过热力学计算获得控制低熔点夹杂物生成所需成分范围。结果表明：低熔点Al2O3-Si O2-Mn O类夹杂物三维形貌为球形;随着钢液中酸溶铝含量的增加,夹杂物中Al2O3含量相应地增加,当钢液中[%C]=0.10、[%Si]=0.35、[%Mn]=0.90、夹杂物的熔点控制在1 200℃范围时,要求钢液中的酸溶铝含量很低,需控制在（1~5）×10-6。
The method of non-aqueous solution electrolysis was used to extract oxide inclusion from the low carbon thin-strip steel substrate. Scanning Electron Microscope （SEM） with Energy Dispersive Spectrometer （EDS） was used to analyze the three-dimensional morphology and chemical composition of the extracted inclusions, and thermodynamics was used to calculate the element content for the formation of low melting point inclusion. The results showed that the three-dimensional morphology of low melting point A1203-SiO2-MnO inclusion was spherical. With the increase of acid- soluble aluminum in molten steel, the content of A1203 in inclusion increased. When [ % C] =0.10, [ % Si ] = 0.35, [ % Mn ] = 0.90 and the melting point of inclusion was around 1 200 ℃, the content of acid-soluble aluminum in molten steel should be controlled as low as （1 -5 ） x 10-6.
出处
《上海金属》
CAS
北大核心
2015年第4期52-55,60,共5页
Shanghai Metals
基金
国家自然科学基金(No.51104099)
关键词
薄带连铸
低熔点
夹杂物
非水溶液电解
Thin-Strip Continuous Casting, Low Melting Point, Inclusion, Non-Aqueous Solution Electrolysis
