正在加载图片...
·36· 工程科学学报,第38卷,增刊1 1) w[Ca]控制在0.00007%-0.0030%. (4)在1873K下,当钢中w[A1]为0.030%时,钢 0.0025 a01,0 0=0.(0017% 中S]含量控制在0.0006%~0.0019%,既能使钢中 0.0020 Al,0夹杂得到较好变性,同时又可以减少CaS生成. 12a(7A10 0.0015 0=0.0008元 参考文献 0.0010 3Ca0-ALO ·0=0.0005% [Lin L,Bao Y P,Liu J H,et al.An analysis on modification 0.0005 effect of non-metallic inclusions in pipeline steel X80 by RH-feed- ing wire calcium treatment.Spec Steel,2010.31 (5):51 0 0.01 0.02 0.03 0.04 0.05 0.06 (林路,包燕平,刘建华,等.RH-喂线钙处理的管线钢X80非 叫A经 金属夹杂物变性效果分析.特殊钢,2010,31(5):51) 图31873K下不同夹杂物中A0平衡 Yang LL,Bao Y P,Liu J H.Investigations in non-metallic inclu- Fig.3 Al-0 equilibrium curves of different inclusions at 1873 K sions modification effects of calcium treatment in steel.Steelmak- ing,2009,25(4):35 0.0030 (杨伶俐,包燕平,刘建华.钙处理对钢中非金属夹杂物变性 0.0025 Ca=0.0030% 效果分析.炼钢,2009,25(4):35) 3Ga0-ALO. B]Liu J H,Wu HJ,Bao Y P,et al.Evaluation standard of calcium 0.0020 treatment in high grade pipeline steel.Univ Sci Technol Beijing, 2010,32(3):312 0.0015 (刘建华,吴华杰,包燕平,等.高级别管线钢钙处理效果评价 0.0010 12a0-7Al,0 标准.北京科技大学学报,2010,32(3):312) 、eCa-0.0010段 4] Wang X H,Li X G,Li Q,et al.Control of string shaped non-me- 0.0005 Cao-ALO, yr0a=0.0007% tallic inclusions of Ca0-Al2O3 system in X80 pipeline stee plates.Acta Metall Sin,2013,49(5):553 0 0.01 0.020.030.040.050.06 (王新华,李秀刚,李强,等.X80管线钢板中条串状C0一 n叫/cg A山20,系非金属夹杂物的控制.金属学报,2013,49(5):553) 图41873K下不同夹杂物中Al-Ca平衡 [5] Yang J,Wang X H,Jiang M,et al.Effect of calcium treatment Fig.4 Al-Ca equilibrium curves of different inclusions at 1873 K on non-metallic inclusions in utraow oxygen steel refined by high 0.020 basicity high Al2O3 slag.J Iron Steel Res Int,2011,18(7):8 0.018 Gao-ALO. [6]Bielefeldt W V,Vilela A C F.Study of inclusions in high sulfur, 0.016 Al-killed Catreated steel via experiments and thermodynamic cal- 0.014 culations.Steel Res Int,2015,86(4):375 0.012 3a010 He SP,Chen GJ,Guo Y T,et al.Morphology control for Al2O inclusion without Ca treatment in high-aluminum steel.Metall Ma- 0.008 ter Trans B,2015,46(2):585 0.06 S]=0.0019g 12Ca0)-7AL,O 8] Sun G D,Sui Y F,Wang C G,et al.Thermodynamic calculation 0.004 Sl=0.0006% 0.002 3C小A on calcium treatment for 26CrMo4S/2 steel /Proceedings of the Seventeenth National Steelmaking Meeting.Hangzhou,2013:348 0.01 0.02 0.03 0.04 0.05 0.06 (孙国栋,隋亚飞,王灿国,等.26CMo4S2钢钢液喂钙处理热 dAlVer 力学分析1/第十七届全国炼钢学术会议论文集.杭州,2013: 图51873K下不同夹杂物中AS平衡 348) Fig.5 Al-$equilibrium curves of different inclusions at 1873 K 9]Ye GZ,Jonsson P,Lund T.Thermodynamics and kinetics of the modification of AlO inclusions.IS//Int,199,36(Suppl): Mg0-AL,0,CaS类复合夹杂物 S105 (2)钢中氧化物夹杂发生如下转变:Al,03→Mg0一 [10]Yang G W,Wang X H.Inclusion evolution after calcium addi- A山0,→A山,0,Mg0Ca0(CaS).精炼结束后大部分氧 tion in low carbon Al-illed steel with ultra low sulfur content 1SJ1mt,2015,55(1):126 化物夹杂熔点较高,钙处理效果不理想. [11]Guo J.Cheng S S,Cheng Z J.Mechanism of non-metallic inclu- (3)为将L,0,变性为液态钙铝酸盐12Ca0·7AL,0, sion formation and modification and their deformation during com 达到理想钙处理效果,在1873K下,当钢中w[]为 pact strip production (CSP)process for aluminum-illed steel. 0.030%时,0[0]控制在0.0005%~0.0017%, 1SJt,2013,53(12):2142工程科学学报,第 38 卷,增刊 1 图 3 1873 K 下不同夹杂物中 Al--O 平衡 Fig. 3 Al--O equilibrium curves of different inclusions at 1873 K 图 4 1873 K 下不同夹杂物中 Al--Ca 平衡 Fig. 4 Al--Ca equilibrium curves of different inclusions at 1873 K 图 5 1873 K 下不同夹杂物中 Al--S 平衡 Fig. 5 Al--S equilibrium curves of different inclusions at 1873 K MgO--Al2O3 --CaS 类复合夹杂物. ( 2) 钢中氧化物夹杂发生如下转变: Al2O3→MgO-- Al2O3→Al2O3 --MgO--CaO( CaS) . 精炼结束后大部分氧 化物夹杂熔点较高,钙处理效果不理想. ( 3) 为将 Al2O3变性为液态钙铝酸盐 12CaO·7Al2O3, 达到理想钙处理效果,在 1873 K 下,当钢中 w[Al]为 0. 030% 时,w[O]控制在 0. 0005% ~ 0. 0017% , w[Ca]控制在 0. 00007% ~ 0. 0030% . ( 4) 在 1873 K 下,当钢中 w[Al]为 0. 030% 时,钢 中[S]含量控制在 0. 0006% ~ 0. 0019% ,既能使钢中 Al2O3夹杂得到较好变性,同时又可以减少 CaS 生成. 参 考 文 献 [1] Lin L,Bao Y P,Liu J H,et al. An analysis on modification effect of non-metallic inclusions in pipeline steel X80 by RH-feed￾ing wire calcium treatment. Spec Steel,2010,31( 5) : 51 ( 林路,包燕平,刘建华,等. RH--喂线钙处理的管线钢 X80 非 金属夹杂物变性效果分析. 特殊钢,2010,31( 5) : 51) [2] Yang L L,Bao Y P,Liu J H. Investigations in non-metallic inclu￾sions modification effects of calcium treatment in steel. Steelmak￾ing,2009,25( 4) : 35 ( 杨伶俐,包燕平,刘建华. 钙处理对钢中非金属夹杂物变性 效果分析. 炼钢,2009,25( 4) : 35) [3] Liu J H,Wu H J,Bao Y P,et al. Evaluation standard of calcium treatment in high grade pipeline steel. J Univ Sci Technol Beijing, 2010,32( 3) : 312 ( 刘建华,吴华杰,包燕平,等. 高级别管线钢钙处理效果评价 标准. 北京科技大学学报,2010,32( 3) : 312) [4] Wang X H,Li X G,Li Q,et al. Control of string shaped non-me￾tallic inclusions of CaO-- Al2O3 system in X80 pipeline steel plates. Acta Metall Sin,2013,49( 5) : 553 ( 王新 华,李秀刚,李 强,等. X80 管 线 钢 板 中 条 串 状 CaO-- Al2O3 系非金属夹杂物的控制. 金属学报,2013,49( 5) : 553) [5] Yang J,Wang X H,Jiang M,et al. Effect of calcium treatment on non-metallic inclusions in ultra-low oxygen steel refined by high basicity high Al2O3 slag. J Iron Steel Res Int,2011,18( 7) : 8 [6] Bielefeldt W V,Vilela A C F. Study of inclusions in high sulfur, Al-killed Ca-treated steel via experiments and thermodynamic cal￾culations. Steel Res Int,2015,86( 4) : 375 [7] He S P,Chen G J,Guo Y T,et al. Morphology control for Al2O3 inclusion without Ca treatment in high-aluminum steel. Metall Ma￾ter Trans B,2015,46( 2) : 585 [8] Sun G D,Sui Y F,Wang C G,et al. Thermodynamic calculation on calcium treatment for 26CrMo4S /2 steel / / Proceedings of the Seventeenth National Steelmaking Meeting. Hangzhou,2013: 348 ( 孙国栋,隋亚飞,王灿国,等. 26CrMo4S /2 钢钢液喂钙处理热 力学分析/ /第十七届全国炼钢学术会议论文集. 杭州,2013: 348) [9] Ye G Z,Jnsson P,Lund T. Thermodynamics and kinetics of the modification of Al2O3 inclusions. ISIJ Int,1996,36 ( Suppl) : S105 [10] Yang G W,Wang X H. Inclusion evolution after calcium addi￾tion in low carbon Al-killed steel with ultra low sulfur content. ISIJ Int,2015,55( 1) : 126 [11] Guo J,Cheng S S,Cheng Z J. Mechanism of non-metallic inclu￾sion formation and modification and their deformation during com￾pact strip production ( CSP) process for aluminum-killed steel. ISIJ Int,2013,53( 12) : 2142 · 63 ·
<<向上翻页
©2008-现在 cucdc.com 高等教育资讯网 版权所有