.944. 工程科学学报，第40卷，第8期 随着增氨压力的升高，真空处理时钢中气泡密度升 液中显微非金属夹杂物.工程科学学报，2015,37(9)：1124) 高，可以提升气泡粘附夹杂物的数量，促进夹杂物的 [8]Bradshaw A V.Kinetic aspects of vacuum refining / 上浮去除 Conferencepleniere presentee au Congres Internationalsur les Applica- tions des Techniques du Vide la Metallurgie.Strasbourg,1967 4结论 [9]Li K W,Liu J H,Zhang J,et al.Theoretical analysis of bubble nucleation in molten steel supersaturated with nitrogen or hydro- (1)增氨析氨法对硅锰脱氧钢中的夹杂物及 gen.Metall Mater Trans B,2017,48(4):2136 T[0]有良好的去除效果.经过增氨析氨法处理后， [10]Liu J H,Li K W,Shen S B,et al.Numerical analysis of bubble 硅锰脱氧的SWRH82B钢中T[O]、T[N]均控制在 growth in a molten steel/(N2,H2)supersaturation system.Chin JEng,2016,38(5):630 1×10-5以内，夹杂物去除率均为40%以上. (刘建华，李康伟，沈少波，等.钢液/(N,、H,)过饱和体系 (2)随着增氨压力的增加，夹杂物及T[0]去除 中气泡生长的数值分析.工程科学学报，2016,38(5)：630) 率均增加.当增氨时间为20min、真空处理时间为 [11]Zhang H W,Li Y X.Study on bubble nucleation in liquid met- 30min、增氮压力为0.08MPa的条件下，T[0]及夹 al.Acta Phys Sin,2007,56(8):4864 杂物去除效果达到最好，T[0]及夹杂物去除率分别 (张华伟，李言祥.金属熔体中气泡形核的理论分析.物理 学报，2007,56(8)：4864) 为89.2%、87.4%. [12]Tumbull D.Formation of crystal nuclei in liquid metals.J Appl (3)增氮压力的提高可以使气泡形核更加容 Phs,1950,21(10):1022 易，增加气泡临界形核深度及气泡自发形核深度，有 [13]Cui Z Y,Qin Y C.Metallography and Heat Treatment.2nd Ed. 助于提升夹杂物去除效果.在实际生产过程中，应 Beijing:China Machine Press,2011 适当提高增氨压力，去除钢液深度较大处的夹杂物， (崔忠圻，覃耀春.金属学与热处理.2版.北京：机械工业 出版社，2011) 提高钢液洁净度 [14]Tiller WA,Jackson K A,Rutter J W,et al.The redistribution (4)随着增氨压力的升高，钢中气泡数量及气 of solute atoms during the solidification of metals.Acta Metall, 泡密度均有增加，提升了气泡粘附夹杂物的数量，促 1953,1(4):428 进夹杂物的上浮去除. [15]Huang X H.Principal of /ron and Steel Metallurgy.3rd Ed.Bei- jing:Metallurgical Industry Press,2002 参考文献 (黄希祜.钢铁治金原理.3版.北京：冶金工业出版社， [1]Zhong S S,Wang C S.Bearing Steel.Beijing:Metallurgical In- 2002) dustry Press,2000 [16]Li H B,Jiang Z H.Thermodynamic calculation model of nitrogen (钟顺思，王昌生.轴承钢.北京：治金工业出版社，2000) solubility in molten stainless steel.I Northeastern Unir Nat Sci [2]Matsuno H,Kikuchi Y,Komatsu M,et al.Development of a new 2007,28(5):672 deoxidation technique for RH degassers.fron Steelmaker,1993, (李花兵，姜周华.不锈钢熔体中氮溶解度的热力学计算模 20(7):35 型.东北大学学报（自然科学版），2007,28(5)：672) [3]Wang L H,Lee H G.Hayes P.A new approach to molten steel [17]Xue Z L,Wang Y F,Wang L T,et al.Inclusion removal from refining using fine gas bubbles.IS/J Int,1996,3(1):17 molten steel by attachment small bubbles.Acta Metall Sin, [4]Zhang L,Taniguchi S.Fundamentals of inclusion removal from 2003.39(4):431 liquid steel by bubble flotation.Int Mater Rev,2000,45(2):59 (薛正良，王义芳，王立涛，等.用小气泡从钢液中去除夹杂 [5]Wang L,Lee H G.Hayes P.Prediction of the optimum bubble 物颗粒.金属学报，2003,39(4)：431) size for inclusion removal from molten steel by flotation.IS//Int, [18]Zhang L,Taniguchi S.Fundamentals of inclusion removal from 1996,36(1):7 liquid steel by bubble flotation.Int Mater Rer,2000,45(2):59 [6]Tang F P,Li Z,Wang X F,et al.Technical investigation on the [19]Yang H L.Study on the Technology of Inclusion Remoral in High fine inclusion removal due to the dispersed in-situ phase induced Quality Special Steel with Microbubble Filtration Dissertation]. by the composite ball explosion reaction.Iron Steel,2010,45(8): Shenyang:Northeastern University,2014 28 (杨虎林.高品质特殊钢中微气泡快速过滤去除夹杂物技术 (唐复平，李镇，王晓峰，等.反应诱发微小异相去除钢液中 研究[学位论文].沈阳：东北大学，2014) 细小夹杂物技术研究.钢铁，2010,45(8)：28) [20]Mourtada-Bonnefoi CC,Laporte D.Kinetics of bubble nuclea- [7]Li K W,Liu J H,Zhou J B,et al.Micro non-metallic inclusion tion in a rhyolitic melt:an experimental study of the effect of as removal from molten steel with gas bubbles generated by the nitro- cent rate.Earth Planet Sci Lett,2004,218(3-4):521 gen absorbing and releasing method.Chin Eng,2015,37 (9): [21]Toramaru A.Numerical study of nucleation and growth of bubbles 1124 in viscous magmas.JGeophys Res Solid Earth,1995,100(B2): (李康伟，刘建华，周剑波，等.增氮析氨法生成气泡去除钢 1913工程科学学报,第 40 卷,第 8 期 随着增氮压力的升高,真空处理时钢中气泡密度升 高,可以提升气泡粘附夹杂物的数量,促进夹杂物的 上浮去除. 4 结论 (1)增氮析氮法对硅锰脱氧钢中的夹杂物及 T[O]有良好的去除效果. 经过增氮析氮法处理后, 硅锰脱氧的 SWRH82B 钢中 T[O]、T[N]均控制在 1 伊 10 - 5以内,夹杂物去除率均为 40% 以上. (2)随着增氮压力的增加,夹杂物及 T[O]去除 率均增加. 当增氮时间为 20 min、真空处理时间为 30 min、增氮压力为 0郾 08 MPa 的条件下,T[O]及夹 杂物去除效果达到最好,T[O]及夹杂物去除率分别 为 89郾 2% 、87郾 4% . (3)增氮压力的提高可以使气泡形核更加容 易,增加气泡临界形核深度及气泡自发形核深度,有 助于提升夹杂物去除效果. 在实际生产过程中,应 适当提高增氮压力,去除钢液深度较大处的夹杂物, 提高钢液洁净度. (4)随着增氮压力的升高,钢中气泡数量及气 泡密度均有增加,提升了气泡粘附夹杂物的数量,促 进夹杂物的上浮去除. 参 考 文 献 [1] Zhong S S, Wang C S. Bearing Steel. Beijing: Metallurgical In鄄 dustry Press, 2000 (钟顺思, 王昌生. 轴承钢. 北京: 冶金工业出版社, 2000) [2] Matsuno H, Kikuchi Y, Komatsu M, et al. Development of a new deoxidation technique for RH degassers. Iron Steelmaker, 1993, 20(7): 35 [3] Wang L H, Lee H G, Hayes P. A new approach to molten steel refining using fine gas bubbles. ISIJ Int, 1996, 36(1): 17 [4] Zhang L, Taniguchi S. Fundamentals of inclusion removal from liquid steel by bubble flotation. Int Mater Rev, 2000, 45(2): 59 [5] Wang L, Lee H G, Hayes P. Prediction of the optimum bubble size for inclusion removal from molten steel by flotation. ISIJ Int, 1996, 36(1): 7 [6] Tang F P, Li Z, Wang X F, et al. Technical investigation on the fine inclusion removal due to the dispersed in鄄situ phase induced by the composite ball explosion reaction. Iron Steel, 2010, 45(8): 28 (唐复平, 李镇, 王晓峰, 等. 反应诱发微小异相去除钢液中 细小夹杂物技术研究. 钢铁, 2010, 45(8): 28) [7] Li K W, Liu J H, Zhou J B, et al. Micro non鄄metallic inclusion removal from molten steel with gas bubbles generated by the nitro鄄 gen absorbing and releasing method. Chin J Eng, 2015, 37(9): 1124 (李康伟, 刘建华, 周剑波, 等. 增氮析氮法生成气泡去除钢 液中显微非金属夹杂物. 工程科学学报, 2015, 37(9): 1124) [8] Bradshaw A V. Kinetic aspects of vacuum refining / / Conf佴rencepl佴ni侉re pr佴sent佴e au Congr侉s Internationalsur les Applica鄄 tions des Techniques du Vide la M佴tallurgie. Strasbourg, 1967 [9] Li K W, Liu J H, Zhang J, et al. Theoretical analysis of bubble nucleation in molten steel supersaturated with nitrogen or hydro鄄 gen. Metall Mater Trans B, 2017, 48(4): 2136 [10] Liu J H, Li K W, Shen S B, et al. Numerical analysis of bubble growth in a molten steel / (N2 ,H2 ) supersaturation system. Chin J Eng, 2016, 38(5): 630 (刘建华, 李康伟, 沈少波, 等. 钢液 / (N2 、H2 )过饱和体系 中气泡生长的数值分析. 工程科学学报, 2016, 38(5): 630) [11] Zhang H W, Li Y X. Study on bubble nucleation in liquid met鄄 al. Acta Phys Sin, 2007, 56(8): 4864 (张华伟, 李言祥. 金属熔体中气泡形核的理论分析. 物理 学报, 2007, 56(8): 4864) [12] Turnbull D. Formation of crystal nuclei in liquid metals. J Appl Phys, 1950, 21(10): 1022 [13] Cui Z Y, Qin Y C. Metallography and Heat Treatment. 2nd Ed. Beijing: China Machine Press, 2011 (崔忠圻, 覃耀春. 金属学与热处理. 2 版. 北京: 机械工业 出版社, 2011) [14] Tiller W A, Jackson K A, Rutter J W, et al. The redistribution of solute atoms during the solidification of metals. Acta Metall, 1953, 1(4): 428 [15] Huang X H. Principal of Iron and Steel Metallurgy. 3rd Ed. Bei鄄 jing: Metallurgical Industry Press, 2002 (黄希祜. 钢铁冶金原理. 3 版. 北京: 冶金工业出版社, 2002) [16] Li H B, Jiang Z H. Thermodynamic calculation model of nitrogen solubility in molten stainless steel. J Northeastern Univ Nat Sci, 2007, 28(5): 672 (李花兵, 姜周华. 不锈钢熔体中氮溶解度的热力学计算模 型. 东北大学学报(自然科学版), 2007, 28(5): 672) [17] Xue Z L, Wang Y F, Wang L T, et al. Inclusion removal from molten steel by attachment small bubbles. Acta Metall Sin, 2003, 39(4): 431 (薛正良, 王义芳, 王立涛, 等. 用小气泡从钢液中去除夹杂 物颗粒. 金属学报, 2003, 39(4): 431) [18] Zhang L, Taniguchi S. Fundamentals of inclusion removal from liquid steel by bubble flotation. Int Mater Rev, 2000, 45(2): 59 [19] Yang H L. Study on the Technology of Inclusion Removal in High Quality Special Steel with Microbubble Filtration [Dissertation]. Shenyang: Northeastern University, 2014 (杨虎林. 高品质特殊钢中微气泡快速过滤去除夹杂物技术 研究[学位论文]. 沈阳: 东北大学, 2014) [20] Mourtada鄄Bonnefoi C C, Laporte D. Kinetics of bubble nuclea鄄 tion in a rhyolitic melt: an experimental study of the effect of as鄄 cent rate. Earth Planet Sci Lett, 2004, 218(3鄄4): 521 [21] Toramaru A. Numerical study of nucleation and growth of bubbles in viscous magmas. J Geophys Res Solid Earth, 1995, 100(B2): 1913 ·944·