Research on Sulfur Migration with Pulsed Electric Field Imposed on Slag-metal Interface
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摘要: 在Fe-C-S系合金与CaO-MgO-Al2O3溶渣体系间施加电压为2 V的脉冲电场,研究了改变脉冲电场的处理时间对S在渣金两相间分布和迁移特性的影响。试验结果表明,随着脉冲处理时间加长,渣中的硫含量逐渐升高,S在Fe-C-S金属基体上下表面分布趋于均匀,当电场处理时间为60 s时,渣中的硫含量为0.891%,△wS=0.001%,并且金属表面夹杂物明显细化。Abstract: Pulsed electric field has been imposed on interface between Fe-C-S alloy and CaO-MgO-Al2O3 slag for different durations to study sulfur distribution and migration between metal and slag.The experimental result shows that with the extension of imposing time,sulfur in the slag gradually increases,and evenly distributes on the upper and lower surfaces of Fe-C-S metallic matrix;in addition,inclusions on the metal surface are obviously refined at the same time.The sulfur content in the slag is 0.891 percent and △wS is 0.001 percent when pulsed electric field imposing time is 60 seconds.
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Key words:
- slag-metal reaction /
- pulsed electric field /
- sulfur migration /
- inclusion
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