摘要
研究了普通取向硅钢(/%:0.03～0.05C、3.0Si、0.065～0.080Mn、0.004～0.007P、0.018～0.025S、0.02Cu)2.20～2.30mm热轧板经二次冷轧和中间退火生产0.30mm板的工艺过程。重点分析了化学成分(C、Mn、S、P)、加热温度(1350～1400℃,1200～1320℃)、常化工艺、二次冷轧压下率(56%～62%)和二次再结晶温度(900～1000℃)对普通取向硅钢铁损P_(17)和磁感应强度B_8的影响。结果表明,化学成分,加热温度和二次再结晶温度对普通取向硅钢的磁性能影响较大,常化工艺和中间板厚对钢的磁性影响不显著;普通取向硅钢合适的主要成分的范围为(/%):0.03～0.05C、2.9～3.1Si、0.05～0.10Mn、0.015～0.03S,热轧加热温度～1380℃,终轧930～960℃,二次再结晶温度～950℃。
The process for 0. 30 mm sheet of conventional grain-oriented silicon steel （/% ： 0. 03 - 0. 05C, 3.0Si, 0.065 - 0. 080Mn, 0.004 - 0. 007P, 0.018 - 0. 025S, 0.02Cu） produced by two-stage cold rolling and interannealing from 2. 20 - 2. 30 mm hot rolled plate has been studied to focus analysis on the effect of chemical composition （ C, Mn, S, P） , heating temperature （ 1 350 - 1 400 ℃ and 1 200 - 1 320 ℃ ） , use of normalizing process, second cold rolling reduc- tion （56% -62% ） and secondary recrystallization temperature （900 -1 000 ℃ ） on iron loss P17 and magnetic induction Bs of conventional grain-oriented silicon steel. Results show that the effect of chemical composition, heating temperature and secondary recrystallization temperature on magnetic properties of conventional grain-oriented silicon steel is obvious, and the normalization process and cold rolling process plate thickness on magnetic properties of steel is not appreciable ; for conventional grain-oriented silicon steel the suitable range of chemical composition is （/% ： ） 0. 03 - 0. 05C, 2. 9 - 3. 1Si, 0. 05 -0. 10Mn, 0. 015 -0. 03S, the heating temperature for hot rolling is - 1 380 ℃ , finishing rolling at 930 -960 ℃, secondary recrvstallization temperature -950 ℃.
出处
《特殊钢》
北大核心
2012年第2期29-32,共4页
Special Steel
基金
山西省科技攻关项目计划基金资助项目(编号2007031123-01)
关键词
普通取向硅钢化学成分二次再结晶温度磁性能
Conventional Grain-Oriented Silicon Steel, Chemical Composition, Secondary Recrystallization Tem-perature, Magnetic Properties
