IF钢非稳态连铸坯洁净度分析

doi:10.13228/j.boyuan.issn1005-4006.20220005

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Abstract In order to study the effect of unsteady casting on the cleanliness of IF steel slabs, the steady-state and unsteady-state casting of IF steel slabs produced by BOF-RH-CC process were compared by means of oxygen-nitrogen analysis, Aspex Explorer SEM and SLIME. The results show that the steady-state casting slab has higher cleanliness, the average w(T[O]) and w(N) is 14.5×10^-6and 9.5×10^-6, the average quantity density of micro-inclusions are 5.1/mm², and the mass of large inclusions are 3.34 mg/10 kg. In the non-steady state process, the cleanliness of the head slab is the worst, followed by the tail slab and the nozzle slab. The micro-inclusionsin different types of slabs are the same, but the unsteady-state slabs have more large inclusions due to mold flux entrapment than the normal slab.

Key words： IF steel unsteady continuous casting inclusion cleanliness continuous casting oxygen and nitrogen content

Received: 18 January 2022

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	Articles by authors
	LI Yu-di
	JANG Zhong-kuai

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LI Yu-di,JANG Zhong-kuai. Research on cleanliness in unsteady casting slabs of IF steel[J]. CONTINUOUS CASTING, 2022, 41(2): 89-94.

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http://www.chinamet.cn/Jweb_lz/EN/10.13228/j.boyuan.issn1005-4006.20220005 OR http://www.chinamet.cn/Jweb_lz/EN/Y2022/V41/I2/89

[1]	李晓军,张亮亮,史震.水冷工艺对IF钢热轧卷组织和力学性能的影响[J].河北冶金,2021(6):14.
[2]	张红奎.超低碳深冲钢基板SPHETi-3的生产实践[J].河北冶金,2021(9):44.
[3]	韩赟,邱木生,邹英,等.高塑性应变比Ti-IF钢组织性能及析出相[J].钢铁,2021,56(3):77.
[4]	刘自权,马子洋.高强IF钢热轧变形抗力热模拟试验研究[J].河北冶金,2020(8):32.
[5]	王林,于洋,王畅,等.IF钢加热和连退温度对成品质量影响分析[J].中国冶金,2020,30(8):64.
[6]	张立峰,李燕龙,任英.钢中非金属夹杂物的相关基础研究(Ⅰ)-非稳态浇铸中的大颗粒夹杂物及夹杂物的形核、长大、运动、去除和捕捉[J].钢铁,2013,48(11):1.
[7]	李光瀛,马鸣图.我国汽车板生产现状及展望[J].轧钢,2014,31(4):22.
[8]	高文芳.冷轧薄板表面缺陷研究[J].炼钢,2006,22(3):22.
[9]	鹏其春,田俊,尹会芳,等.冷轧板表面现状缺陷成因分析与探讨[J].武汉科技大学学报,2009,32(1):15.
[10]	张维维,李晓伟,吕春风.IF钢冷轧板表面条状缺陷[J].钢铁研究学报,2009,21(7):59.
[11]	袁方明,王新华,李宏,等.不同浇铸阶段IF钢连铸板坯洁净度[J].北京科技大学学报,2005,27(4):436.
[12]	张乔英,王新华,张立,等.拉速变化对IF钢铸坯非金属夹杂物含量的影响[J].炼钢,2006,22(6):21.
[13]	周力,王新华,姜敏,等.IF钢连铸过程洁净度分析[J].炼钢,2016,32(2):53.
[14]	刘彭,罗钢,徐刚军.IF钢夹杂物演变和头尾坯洁净度研究[J].连铸,2017 (6):36.
[15]	高攀,田志红,崔阳,等.IF钢非稳态浇铸铸坯洁净度分析[J].钢铁,2012,47(7):31.
[16]	李艳峰.IF钢非稳态浇铸铸坯洁净度分析[J].河南冶金,2019,27(154):16.
[17]	唐德池,高圣勇,崔阳,等.IF钢浇铸过程纯净度研究[J].钢铁钒钛,2013,34(5):39.
[18]	栗红,吕志升,康伟,等.超低碳IF钢头坯洁净度的研究[J].鞍钢技术,2018(2):24.
[19]	肖鹏程,朱立光,刘海春,等.IF钢非稳态连铸坯洁净度定量分析[J].钢铁钒钛,2017,38(3),111.
[20]	邓小旋,王新华,李林平,等.交换钢包过程对IF钢连铸板坯表层洁净度的影响[J].北京科技大学学报,2014,36(7):880.
[21]	崔衡,岳峰,包燕平,等.IF钢连铸头坯洁净度研究[J].钢铁,2010,45(3):38.
[22]	陈霄,包燕平,李任春,等.IF钢开浇阶段铸坯洁净度分析[J].钢铁研究学报,2017,29(4),281.
[23]	王新华.高品质冷轧薄板钢中非金属夹杂物控制技术[J].钢铁,2013,48(9):1.
[24]	杨鹤,王洋,崔衡.非稳态浇铸条件下IF钢铸坯中大型夹杂物分析[J].连铸,2017(2):39.
[25]	朱国森,王新华,邓小旋,等.非稳态连铸坯洁净度的定量研究[J].炼钢,2013,29(6):41.
[26]	殷瑞钰.钢的质量现代进展[M].北京:冶金工业出版社,1995.
[27]	包燕平,王敏.中间包冶金技术发展趋势[J].连铸,2021(5):2.
[28]	刘逸波,杨健.中间包流场控制技术的进展[J].连铸,2021(5):12.
[29]	张硕,刘建华,苏晓峰,等.中间包微气泡冶金技术发展[J].连铸,2021(5):34.
[30]	张杰,郑淑国,朱苗勇.加热功率对感应加热中间包影响的数值模拟[J].中国冶金,2021,31(10):68.
[31]	张仕骏,凌友峰,刘增勋,等.IF钢连铸坯夹杂物示踪试验研究[J].铸造技术,2018,39(7):1524.
[32]	罗衍昭,田志红,李向奎,等.超低碳IF钢夹杂物来源的示踪分析[J].中国冶金,2019,29(9):56.
[33]	吴豪,蔡兆镇,牛振宇,等.薄板坯连铸结晶器铜板热/力行为[J].中国冶金,2021,31(12):79.
[34]	刘文祥,任磊.浸入式水口倾角对宽幅连铸结晶器内流动行为的影响[J].钢铁,2022,57(1):83.
[35]	李献峰,王振鹏,姜丽梅,等.超低碳钢连铸结晶器液面波动原因分析及改进[J].河北冶金,2021(10):66.
[36]	郭银涛.包晶钢结晶器液面波动的原因及控制[J].河北冶金,2021(3):51.
[37]	杨英明.结晶器在线调宽速度曲线算法研究与仿真[J].河北冶金,2021(7):32.