用含钡合金对不锈钢脱氧、脱硫和还原脱磷  

Deoxidation, Desulfurization and Reductive Dephosphorization of Stainless Steel Using Barium Bearing Alloys

作　　者：李阳[1] 姜周华[1] 刘杨[1] 李花兵[1] 梁连科[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《钢铁研究学报》2006年第8期14-18,共5页Journal of Iron and Steel Research

基　　金：国家自然科学基金;上海宝山钢铁集团公司联合资助项目(50174012)

摘　　要：在MoSi2炉和MgO坩埚内进行了含钡合金处理316L不锈钢液的实验研究。实验选用的含钡合金为SiCaBa、SiAlBaCa和SiCaBaMg,并与SiCa和AlCa合金的处理结果进行了对比。实验中发现,使用含钡合金处理钢液时,钡在处理初期就参与了脱氧反应,生成含钡的复合氧硫化物夹杂,更易于上浮排除,全氧含量能够快速降低至较低的水平;在钙合金中添加钡、镁等元素后,合金的脱硫能力提高;SiCaBa合金的还原脱磷效果最佳,用SiAlBaCa合金处理钢液时未出现回磷现象。Molten 316L stainless steel treated by Ba bearing alloys was researched in MoSi2 furnace and MgO crucible. The SiCaBa, SiAIBaCa and SiCaBaMg alloys were used as Ba bearing alloy and the SiCa and AICa alloys were also used in order to a comparison between them. Ar was used to make the reductive atmosphere during the whole experiments process. The results show that Ba takes part in the deoxidation reaction at the beginning of the experiments and the compound oxide and sulfide inclusions are formed, which float up to the surface of molten steel easily. So, the total oxygen contents can be rapidly reduced to a very low level. The desulfurization capability of Ca bearing alloys will increase with the addition of Ba and Mg. The best reductive dephosphorization effect can be gained by using SiCaBa alloy and no rephosphorization is found during the course of using SiAIBaCa alloy.

关 键 词：含钡合金 不锈钢 脱氧 脱硫 还原脱磷 

分 类 号：TF764.1[冶金工程—钢铁冶金]