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张乐辰等:TP347H精炼渣二次氧化控制及夹杂物变性处理 ·7· 35☑火杂物中10质量分数 2011,33(Supp1):165 丝30 脱氧后 ,吹10吧 月吊包前 (陈天明,杨素波,王新华.齿轮钢氧含量及夹杂物控制技术 研究.北京科技大学学报,2011,33(增刊1):165) 30 [7]Jin LL,Wang H T.Xu Z B,et al.Composition control of a Cao- SiO,-Al,O:-MnO system in tire cord steel.J Univ Sci Technol 15 Beng,2007,29(4):377 10 (金利玲,王海涛,诈中波,等.帘线钢Ca0-SiO2-Al20g-Mn0 N 系夹杂物的成分控制.北京科技大学学报,2007,29(4): 377) 、))精炼过程 8] Wu K,Xia F C.Zheng Y.Control of the molten steel end-point 图11VOD精炼各阶段夹杂物中Mg0含量 carbon-oxygen equilibrium incombined blow converter.Steelmak Fig.11 Mgo content of inclusions during VOD process ing,2010,26(4):8 (吴康,夏富春,郑毅.复吹转炉钢水终点碳氧积的控制炼钢, (2)精炼渣中Fe0和SiO,将造成钢液的二次氧 2010,26(4):8) 化,控制精炼渣中F0质量分数小于0.14%,四元碱 9]Li P H,Bao Y P,Yue F,et al.BOF end-point control of ultra 度大于l.3有利于钢液洁净度的控制.减少渣中FO low carbon steel.fron Steel,2011,46(10):27 更有利于防止钢液二次氧化的发生. (李朋欢,包燕平,岳峰,等.超低碳钢的转炉终点控制.钢铁, (3)当钢液温度为1600℃,钢中溶解铝质量分数 2011,46(10):27) [10]Taniguchi Y,Morita K,Sano N.Activities of Feo in Ca0-Al,0- 为0.015%时,控制钢液中溶解Ca质量分数高于13.5 ×106,可使夹杂物达到变性效果,夹杂中镁铝尖晶石 SiO2-Fe0 and Cao-Al2O:-CaF2-Fe0 slags.ISIJ Int,1997,37 (10):956 含量下降,夹杂物熔点可控制在1500℃以下. [11]Liu S,Fruehan R J,Morales A,et al.Measurement of Fe0 ac- tivity and solubility of Mgo in smelting slags.Metall Mater Trans 参考文献 B,2001,32(1):31 [Lee B S,Oh Y J,Yoon J H,et al.J-R fracture properties of [12]Bjorklund J,Andersson M,Jonsson P.Equilibrium between SA508-1a ferritic steels and SA312-TP347 austenitic steels for slag,steel and inclusions during ladle treatment:comparison pressurized water reactor's (PWR)primary coolant piping.Nucl with production data.Ironmaking Steelmaking,2007,34(4): Eng Des,2000,199(1/2):113 312 Dhers J,Thivard B,Genta A.Improvement of steel wire for cold [13]Li Q,Wang X H,Li H B,et al.Modification of non-metallic in- heading.Wire J Int,1991,25(10):73 clusions in high-strength low-alloy steel.Univ Sci Technol Bei- B]Bertrand C,Molinero J,Landa S,et al.Metallurgy of plastic in- mg,2012,34(11):1262 clusions to improve fatigue life of engineering steels.Ironmaking (李强,王新华,李海波,等.低合金高强钢中非金属夹杂物 Steelmaking.2003,30(2):165 的改性.北京科技大学学报,2012,34(11):1262) [4]Peng S T,Chen JY,Luo T W.Research on the reason for crack- [14]Yang S F,Li J S,Zhu L G,et al.Status quo of research on ing of billet TP347H.Special Steel Technol,2005,10(1):7 MgAl2O spinel inclusion in steeland trend of its development. (彭声通,陈晋阳,罗通伟.TP347H管坯轧制开裂的工艺研 Steelmaking,2010,26(1)74 究.特钢技术,2005,10(1):7) (杨树峰,李京社,朱立光,等。钢中镁铝尖晶石夹杂物研究 [5]Zhang J,Yu H X,Wang X H,et al.Effect of refining slag com- 现状及发展.炼钢,2010,26(1):74) position on non-metallic inclusions in high-strengthlow-alloy steel. 05] Wei P Y,Jiang M,Yang D,et al.Behavior of nonmetallic in- JUnir Sci Technol Beijing,2011,33 (7)828 clusions in ultra-ow oxygen steel 25CrMoVNi for high speed rail (张静,于会香,王新华,等.精炼渣成分对高强度低合金钢中 axles during RH refining process.Special Steel,2015,36(3):1 非金属夹杂物影响.北京科技大学学报,2011,33(7):828) (魏鹏远,姜敏,杨叠,等.高速铁路车轴用25 CrMoVNi超低 [6]Chen T M,Yang S B,Wang X H.Control technology for oxygen 氧钢RH精炼过程非金属夹杂物的行为.特殊钢,2015,36 content and inclusions of gear steel.J Unie Sci Technol Beijing, (3):1)张乐辰等: TP347H 精炼渣二次氧化控制及夹杂物变性处理 图 11 VOD 精炼各阶段夹杂物中 MgO 含量 Fig. 11 MgO content of inclusions during VOD process ( 2) 精炼渣中 FeO 和 SiO2 将造成钢液的二次氧 化,控制精炼渣中 FeO 质量分数小于 0. 14% ,四元碱 度大于 1. 3 有利于钢液洁净度的控制. 减少渣中 FeO 更有利于防止钢液二次氧化的发生. ( 3) 当钢液温度为 1600 ℃,钢中溶解铝质量分数 为 0. 015% 时,控制钢液中溶解 Ca 质量分数高于 13. 5 × 10 - 6,可使夹杂物达到变性效果,夹杂中镁铝尖晶石 含量下降,夹杂物熔点可控制在 1500 ℃以下. 参 考 文 献 [1] Lee B S,Oh Y J,Yoon J H,et al. J--R fracture properties of SA508--1a ferritic steels and SA312--TP347 austenitic steels for pressurized water reactor’s ( PWR) primary coolant piping. Nucl Eng Des,2000,199( 1 /2) : 113 [2] Dhers J,Thivard B,Genta A. Improvement of steel wire for cold heading. Wire J Int,1991,25( 10) : 73 [3] Bertrand C,Molinero J,Landa S,et al. Metallurgy of plastic in￾clusions to improve fatigue life of engineering steels. Ironmaking Steelmaking,2003,30( 2) : 165 [4] Peng S T,Chen J Y,Luo T W. Research on the reason for crack￾ing of billet TP347H. Special Steel Technol,2005,10( 1) : 7 ( 彭声通,陈晋阳,罗通伟. TP347H 管坯轧制开裂的工艺研 究. 特钢技术,2005,10( 1) : 7) [5] Zhang J,Yu H X,Wang X H,et al. Effect of refining slag com￾position on non-metallic inclusions in high-strengthlow-alloy steel. J Univ Sci Technol Beijing,2011,33( 7) : 828 ( 张静,于会香,王新华,等. 精炼渣成分对高强度低合金钢中 非金属夹杂物影响. 北京科技大学学报,2011,33( 7) : 828) [6] Chen T M,Yang S B,Wang X H. Control technology for oxygen content and inclusions of gear steel. J Univ Sci Technol Beijing, 2011,33( Suppl1) : 165 ( 陈天明,杨素波,王新华. 齿轮钢氧含量及夹杂物控制技术 研究. 北京科技大学学报,2011,33( 增刊 1) : 165) [7] Jin L L,Wang H T,Xu Z B,et al. Composition control of a CaO-- SiO2 --Al2 O3--MnO system in tire cord steel. J Univ Sci Technol Beijing,2007,29( 4) : 377 ( 金利玲,王海涛,许中波,等. 帘线钢 CaO--SiO2--Al2 O3--MnO 系夹杂物的成分控制. 北京科技大学学报,2007,29 ( 4) : 377) [8] Wu K,Xia F C,Zheng Y. Control of the molten steel end-point carbon-oxygen equilibrium incombined blow converter. Steelmak￾ing,2010,26( 4) : 8 ( 吴康,夏富春,郑毅. 复吹转炉钢水终点碳氧积的控制炼钢, 2010,26( 4) : 8) [9] Li P H,Bao Y P,Yue F,et al. BOF end-point control of ultra low carbon steel. Iron Steel,2011,46( 10) : 27 ( 李朋欢,包燕平,岳峰,等. 超低碳钢的转炉终点控制. 钢铁, 2011,46( 10) : 27) [10] Taniguchi Y,Morita K,Sano N. Activities of FeO in CaO--Al2O3 -- SiO2--FeO and CaO--Al2O3--CaF2--FeO slags. ISIJ Int,1997,37 ( 10) : 956 [11] Liu S,Fruehan R J,Morales A,et al. Measurement of FeO ac￾tivity and solubility of MgO in smelting slags. Metall Mater Trans B,2001,32( 1) : 31 [12] Bjrklund J,Andersson M,Jnsson P. Equilibrium between slag,steel and inclusions during ladle treatment: comparison with production data. Ironmaking Steelmaking,2007,34 ( 4 ) : 312 [13] Li Q,Wang X H,Li H B,et al. Modification of non-metallic in￾clusions in high-strength low-alloy steel. J Univ Sci Technol Bei￾jing,2012,34( 11) : 1262 ( 李强,王新华,李海波,等. 低合金高强钢中非金属夹杂物 的改性. 北京科技大学学报,2012,34( 11) : 1262) [14] Yang S F,Li J S,Zhu L G,et al. Status quo of research on MgAl2 O4 spinel inclusion in steeland trend of its development. Steelmaking,2010,26( 1) : 74 ( 杨树峰,李京社,朱立光,等. 钢中镁铝尖晶石夹杂物研究 现状及发展. 炼钢,2010,26( 1) : 74) [15] Wei P Y,Jiang M,Yang D,et al. Behavior of nonmetallic in￾clusions in ultra-low oxygen steel 25CrMoVNi for high speed rail axles during RH refining process. Special Steel,2015,36( 3) : 1 ( 魏鹏远,姜敏,杨叠,等. 高速铁路车轴用 25CrMoVNi 超低 氧钢 RH 精炼过程非金属夹杂物的行为. 特殊钢,2015,36 ( 3) : 1) ·7·
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