Influence of Adsorption Rod Material on Removal of Inclusions in the Nozzle
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摘要: 通过热态试验,研究了镁锆、镁铬、镁钙三种材质吸附杆在铝脱氧条件下对钢液中杂质的吸附效果。结果表明,从单位面积夹杂物个数、面积比率、吸附速度三方面,镁钙质吸附杆对钢液中夹杂物的吸附能力均强于镁锆质、镁铬质吸附杆。试样中部、边部单位面积夹杂物个数与原脱氧钢锭相比降低了29.66%、39.26%,面积比率降低了56.83%、64.33%,夹杂物附速度为0.34μm/s。Abstract: Through thermal experiments,the adsorption of impurities in molten steel under the condition of aluminum deoxidation was studied on the three kinds of adsorption rods,ie,magnesium-zirconium,magnesium-chromium and magnesium-calcium.The experimental results show that from the aspects of the number of inclusions,area ratio and adsorption rate per unit area,the adsorption capacity of magnesium calcium adsorption rods on inclusions in liquid steel is stronger than that of magnesium zirconium and magnesium chromium adsorption rods.The number of inclusions per unit area at the middle and edge of the sample reduced by 29.66% and 39.26% compared with the original deoxidized steel ingot,and the area ratio reduced by 56.83% and 64.33%.The inclusion absorption velocity was 0.34 μm/s.
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Key words:
- molten steel /
- Inclusions /
- adsorber rod material /
- adsorption rate
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