【作者】 李丰功； 战东平； 张佩灿； 姜周华； 王博； 张思勋； 韩文习；

【Author】 Li Fenggong~(1,2),Zhan Dong-ping~1,Zhang Peican~1,Jiang Zhou-hua~1,Wang Bo~2,Zhang Sixun~(1,2),Han Wenxi~(1,2) (1 School of Materials & Metallurgy,Northeastern University,Shenyang 110004,China; 2 Research Center,Laiwu Iron & Steel Co.,Ltd.,Laiwu,Shandong,China)

【机构】 东北大学材料与冶金学院； 莱芜钢铁集团公司技术研发中心；

【摘要】 在1873K条件下采用Φ70mm×100mm MgO坩埚在MoSi₂电阻炉上开展了3炉含1.5%Al的高铝钢脱氧实验。实验炉次获得了较高的脱氧率和较低的终点全氧含量。Mn+Nb-Ti-Al-Ca脱氧工艺获得了最高的脱氧率和最低的全氧含量,分别为84.1%和0.0007%。在Al加入钢水中后,夹杂物平均直径和数量均迅速增大。在终点钢中夹杂物均以尺寸为0～3μm的含Al₂O₃的复合夹杂物为主,大部分夹杂物外围包裹CaS或MnS。更多还原

【Abstract】 Deoxidation and non-metallic inclusion controlling experiments of 3 heats with different deoxidation process at a steel bearing 1.5%Aluminum were done in a MoSi₂ furnace withΦ70mm×100mm MgO at 1873K.The test heats get the high deoxidation ratio and the low terminal total oxygen content. The maximum deoxidation ratio is 84.1%and the minimum total oxygen content is 0.0007%in the process of Mn + Nb-Ti-Al-Ca.After the Aluminum were put into the molten steel,the diameter and number of the inclusions become bigger.In the terminal steels,most of the inclusions are compound bearing Al₂O₃,their outside are coated by CaS or MnS.The diameter of them are 0-3μm.更多还原