采用3000 kg级氩气氛保护电渣炉分别对H13钢(w[O] =45×10-6)进行气氛保护重熔和气氛保护加金属铝重熔.实验结果表明,不加金属铝的情况下,重熔钢中氧含量(质量分数)可降至18×10-6；加铝后重熔钢中氧含量可降至10×10-6；钢中各粒度级非金属夹杂物的数量随钢中氧含量的减少而减少,而重熔过程能够有效去除钢中大尺寸(＞15 μm)非金属夹杂物；不加金属铝重熔的钢中氧化物夹杂主要成分为SiO2-Al2O3,与原电极中氧化物夹杂相似,加金属铝重熔的钢中氧化物夹杂主要成分为Al2O3；最后对重熔前后钢中氧化物夹杂的变化进行了热力学分析.
参考文献
| [1] | 周德光,徐卫国,王平,傅杰,徐君浩,王昌生,徐明德.轴承钢电渣重熔过程中氧的控制及作用研究[J].钢铁,1998(03):0. |
| [2] | C. Bertrand;J. Molinero;S. Landa .Metallurgy of plastic inclusions to improve fatigue life of engineering steels[J].Ironmaking & Steelmaking: Products and applications,2003(2):165-169. |
| [3] | H. Lachmund;Y. Xie .High purity steels: a challenge to improved steelmaking processes[J].Ironmaking & Steelmaking: Products and applications,2003(2):125-129. |
| [4] | Lifeng Zhang;Jun Aoki;Brian G. Thomas .Inclusion Removal by Bubble Flotation in a Continuous Casting Mold[J].Metallurgical and Materials Transactions, B. Process metallurgy and materials processing science,2006(3):361-379. |
| [5] | Masamitsu WAKOH;Nobuo SANO .Behavior of Alumina Inclusions Just after Deoxidation[J].ISIJ International,2007(5):627-632. |
| [6] | Cheng-Bin Shi;Xi-Chun Chen;Han-Jie Guo .Assessment of Oxygen Control and Its Effect on Inclusion Characteristics during Electroslag Remelting of Die Steel[J].Steel Research International,2012(5):472-486. |
| [7] | Lifeng ZHANG;Brian G. THOMAS .State of the Art in Evaluation and Control of Steel Cleanliness[J].ISIJ International,2003(3):271-291. |
| [8] | Kyoko WASAI;Kusuhiro MUKAI;Akifumi MIYANAGA .Observation of Inclusion in Aluminum Deoxidized Iron[J].ISIJ International,2002(5):459-466. |
| [9] | Kanae uzuki;Shiro Ban-Ya;Mitsutaka Hino .Deoxidation Equilibrium of Chromium Stainless Steel with Si at the Temperatures from 1 823 to 1 923 K[J].ISIJ International,2001(8):813-817. |
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