高牌号无取向硅钢CSP流程铸坯及热轧板的组织和夹杂物分析

特殊钢 ›› 2013, Vol. 34 ›› Issue (4): 59-61.

高牌号无取向硅钢CSP流程铸坯及热轧板的组织和夹杂物分析

马良^1,2, 荣哲², 项利², 仇圣桃², 赵沛²

钢铁研究总院1先进钢铁流程及材料国家重点实验室;2连铸技术国家工程研究中心，北京100081

收稿日期:2013-02-28 出版日期:2013-08-01 发布日期:2022-09-11
作者简介:马良( 1980-),男，博士生，高牌号无取向硅钢研究。
基金资助:
国家自然科学基金委员会与上海宝山钢铁股份有限公司联合资助项目(50934009)

An Analysis on Structure and Inclusions in CSP Casting Slab and Hot Rolled Plate of High Grade Non-Oriented Silicon steel

Ma Liang^1,2, Rong Zhe², Xiang Li², Qiu Shengtao², Zhao Pei²

1 State Key Laboratory of Advanced Iron and Steel Flow Sheet and Materials ； 2 National Engineering and Research
Center for Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081

Received:2013-02-28 Published:2013-08-01 Online:2022-09-11

摘要/Abstract

摘要： 2.9 mm热轧3%Si高牌号无取向硅钢板(/%:0.004 6C、3.04Si、0.32Mn、0.49Als、0.004S、0.013P、0.0042N)由CSP(Compact Strip Production紧凑式带材生产线)流程:120 t BOF-70 mm CC-热轧工艺生产。热轧终轧温度872℃,卷取温度683℃。铸坯及热轧板的组织和夹杂物的分析结果表明,铸坯组织为典型的贯穿柱状晶组织;热轧板边部为再结晶组织,中部为纤维组织带有少量再结晶晶粒;高牌号无取向硅钢的主要夹杂物为铸坯-Al₂O₃, AlN和Cu₂S+MnS;热轧板-Al₂O₃, AlN,AIN+MnS和Cu₂S+MnS。

Abstract: The 2. 9 mm hot rolled 3% Si high grade non-oriented silicon steel plate (/% ：0. 004 6 C, 3. 04Si, 0. 32Mn, 0. 49Als, 0. 004S, 0. 013P, 0. 004 2N) is produced by CSP ( Compact Strip Production) flow sheet i.e. 120 t BOF-70 nun CC-hot rolling process with end rolling at 872℃ and coiling at 683℃.The analysis results on structure and inclusions in casting slab and hot rolled plate show that the structure of slab is typical trans-columnar crystal, the structure of hot rolled plate at edge is recrystallized grain and in center of plate is fibrous structure with minor recrystallized grains ； and the main inclusions in high grade non-oriented silicon steel are A1₂O₃, AIN and Cu₂S + MnS in costing slab and A12O3, AIN, AIN + MnS and Cu₂S + MnS in hot rolled plate.

马良, 荣哲, 项利, 仇圣桃, 赵沛. 高牌号无取向硅钢CSP流程铸坯及热轧板的组织和夹杂物分析[J]. 特殊钢, 2013, 34(4): 59-61.

Ma Liang, Rong Zhe, Xiang Li, Qiu Shengtao , Zhao Pei. An Analysis on Structure and Inclusions in CSP Casting Slab and Hot Rolled Plate of High Grade Non-Oriented Silicon steel[J]. Special Steel, 2013, 34(4): 59-61.