|
|
Influence of secondary cooling water distribution optimization on quality of titanium microalloyed casting slab |
SUN Fengjie1, HUANG Weili2,3, CHEHN Wei1, WANG Xingjuan1, LI Yao1, NIU Yuewei2,3 |
1. School of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063000, Hebei,China; 2. Technology Center of Delong Steel Co., Ltd., Xingtai 054009,Hebei,China; 3. Hebei Hot Rolled Strip Technology Innovation Center, Xingtai 054009,Hebei,China |
|
|
Abstract Based on the problems of center crack, triangle crack and product elongation deficiency of DL350 billet of titanium microalloy steel of Delong Company, the heat transfer model of billet was established by the optimization system of secondary cooling water distribution combined with the metallurgical limit criterion, and the optimization of secondary cooling water distribution was studied. ANSYS simulation was used to simulate the temperature of different specific water volume at 0.9-1.2 m/min. The results show that the simulation and experiment are in good agreement, and the quality of casting billet with specific water volume is improved after optimization. According to the drawing speed correlation water distribution method, the optimal specific water volume of 0.9, 1.0, 1.1, 1.2 m/min at different drawing speeds are 0.68, 0.73, 0.77, 0.80 L/kg. In production, the correctness of the simulation is also verified. From the morphology of the low magnification for billet produced after optimization, the defects of the billet great elimination, the surface and internal quality of the billet meet the needs of rolling technology, and finally the elongation of the product is improved and the production needs are met.
|
Received: 30 September 2022
|
|
|
|
[1] |
杨洪波,王豪,赵旭,等. 微合金高强钢纳米相间析出行为研究进展[J]. 钢铁,2021,56(12):10.
|
[2] |
RAHNAMA A, CLARK S, SRIDHAR S. Machine learning for predicting occurrence of interphase precipitation in hsla steels[J].Computational Materials Science,2018,154:169.
|
[3] |
陈建超, 庞洪轩, 温超, 等. 终轧温度对加Ti低合金Q355B钢板组织性能的影响[J]. 中国冶金, 2021, 31(10): 30.
|
[4] |
ZHAO F, HE G N, LIU Y Z, et al. Effect of titanium microalloying on microstructure and mechanical properties of vanadium microalloyed steels for hot forging[J].Journal of Iron and Steel Research International,2022,29(2):295.
|
[5] |
刘阳春,白凤霞,徐彬,等. 钛含量对0.17C-0.30Si-1.40Mn钢组织与力学性能的影响[J]. 钢铁钒钛,2022,43(3):139.
|
[6] |
郑万,寇锦荣,李烈军,等. 微钛固氮降低含铌钢皮下裂纹敏感性的机理[J]. 钢铁,2022,57(8):94.
|
[7] |
程晓,张卫攀,刘红艳.高级别管线钢X80冶炼生产实践[J].河北冶金,2022(2):41.
|
[8] |
朱苗勇. 新一代高效连铸技术发展思考[J]. 钢铁,2019,54(8):21.
|
[9] |
张磊,翟冰钰,王万林. 薄板坯连铸及其铸坯表面缺陷的形成机理[J]. 连铸,2020(4):22.
|
[10] |
LEE Y S, KIM S, JANG D W, et al. Mechanism of crack initiation and propagation in high-alloy steel slabs during the cooling and scarfing processes after the continuous casting process[J].Mechanics of Materials,2022,166:104240.
|
[11] |
王红飞. 钢铁大方坯连铸机活动段气雾喷嘴改进设计[D].昆明: 昆明理工大学, 2020.
|
[12] |
ALI N, ZHANGL, ZHOU H, et al. Elucidation of void defects by soft reduction in medium carbon steel via ebsd and x-ray computed tomography[J].Materials and Design,2021,209:109978.
|
[13] |
张富强,李超,姜振生,等. 连铸板坯中心裂纹和三角区裂纹的成因及防止[J]. 钢铁,2004,39(10):20.
|
[14] |
JIANG D, ZHANG L, ZHU M. Center segregation evolution in slab continuous casting with mechanical reduction: A 3D simulation[J].Steel Research International,2022,97(5):2100569.
|
[15] |
李杰,孙彦辉,郑京辉,等. 板坯动态二冷配水控制模型改进和应用[J]. 连铸,2020(2):27.
|
[16] |
陈伟,和保民,郭高翔,等. Q235b连铸二冷配水分析[J]. 铸造技术,2019,40(2):213.
|
[17] |
陈伟,张玉柱,王宝祥,等. 连铸二冷参数的优化和控制研究[J]. 钢铁,2007,42(3):25.
|
[18] |
张福君,杨树峰,王勇,等. 精冲钢板坯表面质量控制[J]. 连铸,2022(2):20.
|
[19] |
邓勇,杨利彬,汪成义. 马钢低碳钢板坯高拉速连铸技术的应用[J]. 连铸,2022(1):72.
|
[20] |
王亚涛,朱小勇,阎建武. 板坯连铸机二次冷却水分配策略分析[J]. 连铸,2022(1):67.
|
[21] |
李伟,谈正军,程锦君,等. 基于二冷优化的高拉速方坯质量改善及实践[J]. 连铸,2022(2):95.
|
[22] |
王水根,冯科,韩志伟,等. 连铸二次冷却控制技术的发展[J]. 工业加热,2012,41(2):32.
|
[23] |
徐蕊,孙彦辉,曾亚南,等. 含Nb-Ti微合金钢第三脆性区铸坯缺陷[J]. 钢铁研究学报,2014,26(11):45.
|
[24] |
冯永平,郑娜,唐磊,等. 薄板坯连铸结晶器内钢水凝固传热数值模拟[J]. 连铸,2021(6):44.
|
[25] |
朱立光,张彩军,韩毅华,等. 包晶钢矩形坯二冷配水制度优化研究[J]. 河南冶金,2013,21(1):1.
|
[1] |
XIAO Yuehua1,2,PENG Bo2,FAN Aiqin3,JIANG Suihe2,WANG Xianzhen4. Synergistic precipitation behavior and strengthening mechanism of Fe-Ni-Al ultrastrong dual phase steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2023, 35(7): 873-880. |
[2] |
FAN Bin, LIU Li, ZHANG Siyuan, LI Haoqiu, LIU Xiaoming, WANG Qiang. Macro segregation control of gear steel 20CrMnTiH continuous casting large round bloom[J]. CONTINUOUS CASTING, 2023, 42(4): 23-28. |
[3] |
Chun-feng Bai, Bo Wang, Jie Ma, Jie-yu Zhang, Wan-ping Pan. Modeling effect of cooling conditions on solidification process during thermal cycle of rollers in twin-roll strip casting[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(1): 64-73. |
[4] |
ZHANG Xiao-wei, BAI Xiao-lu, SHI Lei, KANG Xin-lei, ZHANG Chao-jie, ZHANG Li-qiang. Numerical simulation of solidification temperature field of SWRH72B-S wire steel continuous casting billet[J]. CONTINUOUS CASTING, 2023, 42(1): 18-23. |
[5] |
LI Jie, ZHANG Kun, LI Qiang, ZHANG Kang-hui, HUANG Zhu-ping. Analysis and optimization of quality defects of HRB400 ribbed steel bar[J]. CONTINUOUS CASTING, 2023, 42(1): 55-60. |
[6] |
WEN Yongyue. Cause analysis of unqualified elongation of
track shoe and improvement measures [J]. PHYSICS EXAMINATION AND TESTING, 2022, 40(3): 49-53. |
|
|
|
|