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概述了无抑制剂法生产取向电工钢的特性及其用途;总结无抑制剂生产取向电工钢的原理及工艺方案.重点讨论了成分方案,即元素对磁性能的影响和最终高温退火方案对二次再结晶的影响.研究结果表明,无抑制剂取向硅钢化学成分范围没有普通取向硅钢和高磁感取向硅钢严格,提高了成材率;最终高温退火决定了二次再结晶的好坏,从而最终决定成品磁性能,最佳的高温退火温度在850~950℃之间. This article provides an overview on the characteristics and uses of inhibitorless process producing grain-oriented electrical steels.The mechanism of inhibitorless process and technology programs were discussed.The results show that the chemical composition and final annealing were determined according to magnetic properties.The inhibitor-free grain oriented silicon steel has loose range of chemical composition;Secondary recrystallization occurs mainly in the final annealing and the best anneal... 
2012-04-28 189 5.8

本发明公开了一种带有紧固硅钢带的非晶合金铁心制造方法,包括以下步骤:步骤(1):切割非晶带材片和紧固硅钢带;步骤(2):对所述非晶带材片和紧固硅钢带进行套装与成型,每组非晶带材片两端搭接,紧固硅钢带设置于非晶带材片之间,得到成型铁心;步骤(3):对所述成型铁心进行磁场热处理;步骤(4):对所述成型铁心进行表面涂封。通过本发明提供的方法生产非晶合金铁心,操作方便、提升非晶合金铁心的结构稳定性,并且进一步降低铁心因磁致伸缩产生的噪声。
2020-12-18 203 6.8

【机构】 中国金属学会电工钢分会; ...
2011-06-28 142 5.8

研究了CSP工艺流程生产的硅含量为1.5%的无取向电工钢在不同常化温度下对磁性能的变化。研究结果表明:随着常化温度的提高,热轧板的晶粒尺寸增大,且组织均匀性提高;此外成品的有利织构组分{100}<0vw>、α、η增强,不利织构组分减弱;铁损P1.5/50呈下降趋势,磁感B50上升平缓。在常化工艺为970℃×2.5min下,对应的铁损P1.5/50<3.4W/kg,磁感B50>1.74T。 The effect of normalizing temperature on the magnetic properties of non-oriented electrical steel containing 1.5%silicon produced by CSP process was studied.The results show that with increasing normalizing temperature,the average grain size of hot-rolled plate increases and the microstructure uniformity is improved.Furthermore,the texture components of finished products are improved through enhancing of{100}<0vw>,αandηtextures and weakening of{111}<112>texture;the core loss P1.5/50 ... 
2014-03-28 176 5.8

针对马钢无取向电工钢孔洞缺陷的分布规律及形貌特征,对缺陷样进行了显微分析,并利用生产实绩数据分析了该缺陷产生的原因。结合热轧生产过程,主要通过避免带钢撞击导卫以及降低导卫结瘤的产生等措施,可有效抑制热卷异物压入产生,从而降低冷轧工序孔洞的产生。 In viewing of the distribution and morphology characteristics of the hole defect of non-oriented electrical steel in Maanshan Iron and Steel Co.,Ltd.,the causes of the defect were analyzed by micro analysis of the defect sample and the production data.Combined with the production process of hot rolling,by avoiding the impact of strip steel on the guide and reducing the nodule formation on the guide,the pressing of foreign bodies in hot coiling could be effectively suppressed,thus reducing the fo... 
2022-01-28 194 5.8

采用双辊薄带连铸工艺试制了2.6 mm厚5.28%Si-1.11%Al高硅钢薄带,对比了1050℃×5 min正火及不正火铸带280℃冷轧至0.5 mm后,再经900~1100℃退火的磁性能。结果表明,高硅钢铸带显微组织为等轴晶组织,正火后铸带边部晶粒长大,中心层晶粒变化较小。成品中析出物主要为较粗大的AlN和AlN+MnS复合析出物,尺寸为0.5~2.5μm。与不正火试样相比,正火试样成品铁损大幅降低,磁感小幅下降;随退火温度的升高,两种工艺下铁损和磁感都是先降低后升高,在1050℃出现最低值。 2.6 mm thickness 5.28% Si-1.11% Al non-oriented high silicon steel was produced by twin roll thin strip casting.Magnetic property of the strip un-normalized and normalized at 1050 ℃×5 min was contrasted after cold rolled to 0.5 mm at 280 ℃ and 900-1100 ℃ final annealing.The results show that microstructure of the strip is equiaxed crystal.The surface grain is coarsened and the center layer grain has little change of the normalized strip.The main precipitates are AlN and MnS+AlN with 0.5-2.5 μm s... 
2013-06-28 179 5.8

本实用新型公开了一种变压器铁芯用硅钢片成型铁测量平台,包括游标测量尺及定位台;定位台包括基架、操作台及至少两根的定位销,操作台I及操作台II分别设置于基架的横向两端,且操作台I及操作台II之间留有宽度a的间距区,操作台II上设置有至少一组的沿横向均匀分布的定位孔组,且至少两根的定位销能够与该定位孔组的定位孔配合,游标测量尺设置于基架上间距区处。在操作台II上设置有至少一组的沿横向均匀分布的定位孔组,且至少两根的定位销能够与定位孔配合,以将该硅钢片成型铁定位区域限定在操作台II台面上,采用多个定位孔和定位销配合结构,同时能够沿横向调整硅钢片成型铁定位位置,以便测量各个区域尺寸。
2021-12-29 225 6.8

针对川威950的工艺现状,结合无取向低硅钢SGG生产的工艺特点,主要从控制其钢坯加热和轧制以及终轧温度和卷曲温度几方面入手,进行无取向低硅钢生产的工艺控制研究。同时根据近6000吨的生产实践表明,该工艺措施能很好的满足该钢种的需要。 950 process Chuanwei status quo,with non-oriented silicon steel production process features low,mainly from the control of billet heating and rolling and finish rolling temperature and coiling temperature of several aspects,for non-oriented silicon steel production process of low control at the same time According to nearly 6,000 tons of production practice shows that the process measures could well meet the needs of the steel. 
2011-01-28 215 5.8

对无取向电工钢中的夹杂进行了系统的分析。利用小样电解,采取不同电解液,不同的分离方法对无取向电工钢中稳定和不稳定夹杂物进行了提取、分离和收集。利用扫描电镜(SEM)、X-射线衍射、ICP等对电解分离收集的夹杂物进行了定性和定量分析。 The inclusion analysis of the non-oriented electrical steel has been investigated.By using small sample electrolytic analysis,with different electrolytes and different separation ways,the stable inclusions and unstable inclusions was drew,separated,and collected.With utilizing the methods of SEM,X-ray and ICP,the qualitative and quantitative analysis of inclusions in the non-oriented electrical steel was obtained. 
2023-05-09 242 5.8

本发明的一种超低碳含钇取向硅钢及其制备方法,化学组成及质量百分比为Si:2.0~4.5%,C:≤0.003%,Y:0.001~0.1%,Mn:0.1~0.25%,Al:0.01~0.02%,Cu:0~0.3%,S:0.02~0.035%,N:0.009~0.011%,其余为Fe和不可避免的杂质元素。生产工艺为:连铸、铸坯加热、热轧、常化、冷轧、初次再结晶退火、二次再结晶退火。本发明采用超低碳的成分,取消了常规取向硅钢脱碳退火工艺,简化了生产流程。通过稀土微合金化解决了因超低碳成分导致的单向铁素体组织抑制剂析出困难的技术难题。本发明制备的含钇取向硅钢厚度为0.2~0.35mm,磁感应强度B8为1.85~1.94T,铁损P17/50为0.9~1.2W/kg,可以用于变压器的铁芯材料,制备流程更为简洁。
2021-12-02 230 6.8

本发明的一种方式的无取向性电磁钢板用热轧钢板,以质量%计含有:C:0.0050%以下、Si:0.5%以上3.5%以下、Mn:0.1%以上1.5%以下、Al:0.1%以上1.5%以下、Cu:0.01%以上0.10%以下、Sn:0.01%以上0.20%以下;剩余部分由Fe和杂质构成;在从表面到深度10μm的范围内,具有0.12%以上的Cu的浓度峰值。
2021-02-19 152 6.8

本发明涉及一种高压电机用无取向硅钢50SBW600的制备方法,包括,S1,将装有精炼钢水的钢包运至回转台,回转台转到浇铸位置后,将钢水注入中间包;S2,中间包通过水口将所述钢水分配至若干个结晶器中,所述结晶器中设置有浸入式水口,S3,钢水在结晶器内生成晶核,结晶器将带有晶核的钢水下放至通道;S4,通道上设有第二电磁搅拌器,第二电磁搅拌器对通道内钢水进行电磁搅拌,所述钢水在通道中逐步转换为钢坯;S5,拉矫辊将的所述钢坯拉出通道并对钢坯进行形态矫正;S6,切断装置所述钢坯进行切割。本发明通过在无取向硅钢50SBW600制备过程中设置双电磁搅拌装置,充分保证连铸过程中钢坯中的等轴晶数量,保障了产品表面缺陷质量。
2021-04-13 154 6.8

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