硅钢资料

为了确定普通冷轧取向硅钢最优的中间完全脱碳退火工艺,在其一次冷轧后进行5种不同工艺的脱碳退火处理,借助扫描电镜及电子背散射衍射技术研究了不同工艺脱碳退火后的组织、织构和脱碳效果。结果表明:经5种工艺脱碳退火处理后,初次再结晶的平均晶粒尺寸均约为19μm,且不随退火温度和时间的变化而变化;经840℃×10min工艺退火后的晶粒最均匀,高斯织构位向更准确,高斯织构面积分数最多,为3.1%,可将碳脱至0.003 5%。 In order to determine the optimal intermediate complete decarburizing annealing processes for common grain-oriented(CGO)silicon steel,five kinds of intermediate decarburizing annealing processes were conducted,the microstructure,texture and decarbonization after different decarburizing annealing processes were studied by scanning electron microscopy and electro back-scattered diffraction(EBSD)technology.The results show that the average grains sizes of primary recrystallization were about 19μm a... 

主要研究了0.7%Si无取向电工钢退火试样的组织、晶粒尺寸和织构对其磁性能的影响。结果表明,随着退火温度的升高,晶粒尺寸逐渐增大,组织的均匀性得到改善;ɑ取向线上的纤维织构多集中于{114}<110>和{223}<110>附近,再结晶结束后,织构含量变化不大。{111}<110>织构取向密度值随温度升高而下降,{112}<111>织构与{111}<110>织构变化相反。晶粒尺寸增大对磁感强度的影响较小,而对铁损的影响较大。 Influences of microstructure,grain size and texture on the magnetic properties of 0.7% Si non-oriented electrical steels annealed samples were studied.The results show that with annealing temperature increasing the average grain size is increased gradually.Uniformity of the microstructure is improved;the textures of ɑ-fiber gathered in the vicinity of the { 114} < 110 > and { 223 } < 110 > texture.After recrystallization,the volume fraction of texture changes small.{ 111} < 110 &g... 

一种电工钢切片用导向装置，涉及电工钢生产装置技术领域，包括导向台、支撑腿、安装块、转轴、辊体、电动机、安装板、滑杆、移动板和导向板；支撑腿设置在导向台底部；安装块设置有两个，两个安装块均设置在导向台横向一侧，两个安装块沿纵向分布；转轴转动设置在两个安装块之间；辊体设置在转轴上，辊体位于两个安装块之间，辊体位于导向台上方；电动机设置在安装块上，电动机与转轴驱动连接；安装板设置有两个，两个安装板分别设置在导向台纵向两侧上部；滑杆设置有两个，两个滑杆均设置在两个安装板之间，两个滑杆沿横向分布。本实用新型能够在电工钢的钢带切片之前进行导向限位工步，使得电工钢切割时不会被切割歪，切片的精度高。

采用SEM、EDS和XRD对不同加热温度下W470连铸坯氧化铁皮的微观形貌及相结构进行研究。结果表明,W470氧化铁皮难以除去的原因是氧化铁皮熔化,液相包裹着FeO,凝固时发生共晶反应,生成FeO/Fe2SiO4共晶混合物,并深嵌入基体。降低加热炉的加热温度,使连铸坯全程在FeO/Fe2SiO4共晶混合物熔点(1177℃)以下加热,可降低氧化铁皮与基体的结合力,能够有效解决W470除鳞困难问题。 The microstructure and phase structure of iron scale of W470 continuous casting billet at different heating temperatures were investigated by SEM,EDS,and XRD.The results show that the reason why the iron scale of W470 removes hardly is that iron scale is melted and the FeO is surrounded by the liquid phase,which forms FeO / Fe2SiO4eutectic mixture and is embedded into the matrix after solidification.Lowering the heating temperature and keeping the continuous casting billet heating under the melt... 

一种在取向硅钢中获得沿晶断口的方法：将取向硅钢样品加工成俄歇电子能谱仪标准试样；对标准试样进行表面清理；充氢：将标准试样所设定的预设断口处放入充氢装置的含硫脲溶液中，并使取向硅钢样品为阴极；将铂片置入并作为阳极；阴极充氢电流为1.25～1.35A，充氢电流密度在0.1～0.8A/m2，充氢时间在12～50h，充氢电压为36～39V；进行表面分析。本发明不仅工艺简单，便于操作，用时短，所用毒化剂是硫脲，从而避免了采用剧毒的三氧化二砷作为毒化剂，对人体健康有极大威胁的问题，且所获得的取向硅钢断口均为典型沿晶断口，适用于取向硅钢晶界偏聚行为以及晶界微区成分分析。

本发明公开了一种电力变压器硅钢片自动叠片生产设备，包括支撑板和叠片立板，其中一组所述支撑板的表面安装有叠片立板，另一组所述支撑板的顶部安装有检测立板；所述叠片立板的背面安装有连杆，所述连杆的尾端连接有限位环，所述限位环的内部等距贯穿安装有第一电动伸缩杆，所述第一电动伸缩杆的尾端表面套接有橡胶套，所述叠片立板的背面设有滑槽，所述滑槽的底壁安装有缓冲弹簧，所述滑槽的顶壁安装有第二电动伸缩杆，所述第二电动伸缩杆的尾端连接有拦截条，两组所述支撑板的顶部均安装有立块。本发明通过设置有叠片立板、限位环、拦截条以及缓冲弹簧的配合，可简化本叠片设备的整体占地面积，简化叠片加工程序。

本发明公开了一种提高薄板坯连铸生产高铝无取向硅钢可浇性的方法，在保证生产顺行、质量稳定的基础上，能使高铝无取向硅钢连浇炉数由10炉提高至16炉，在提高小时产量、降低生产成本方面效果显著。

试验研究了退火温度(850~950℃)和时间(5~18 min)对2.3 mm热轧硅钢板(/%:0.036C,3.15Si,0.21Mn,0.005P,0.007S,0.032A1)6道次轧制的0.35 mm冷轧板组织和织构的影响。结果表明,退火温度越高,晶粒平均尺寸越大,900℃5 min退火时平均晶粒尺寸41.39μm,试样织构主要集中在γ取向线上的{111}<112>织构组分和{111}<110>织构组分;900℃18 min退火时平均晶粒尺寸为48.08μm,试样的{111}面织构和{112}面织构密度都明显减弱,{001}面织构增强,磁性能较优。 The effect of annealing temperature(850 ~950 ℃) and holding time(5 ~ 18 min) on structure and texture of 0.35 mm sheet by 6 passes cold-rolling from 2.3 mm hot-rolled plate of silicon steel(/%:0.036 C,3.15 Si,0.21 Mn,0.005 P,0.007 S,0.032A1) has been tested and studied.Results show that the higher the annealing temperature the coarser the average grain size;As annealing at 900 ℃ for 5 min the average grain size of steel sheet is 41.39 μm,and the texture in sample is mainly concentrated in y orie... 

冷轧中中低牌号的无取向硅钢多采用万能凸度轧机(Universal crown mill,UCM)生产,其板形好坏受制于UCM轧机板形调节手段的协调使用。为掌握UCM轧机的板形控制特点,建立基于二维变厚度有限元的辊系弹性变形和基于三维差分的轧件塑性变形的六辊轧机耦合模型,对UCM轧机的板形调控性能进行详尽的分析,包括工作辊和中间辊弯辊、中间辊窜辊的调控功效、辊间接触压力分布等。在此基础上,提出可用指导生产的板形控制策略,指出UCM轧机在横向厚差控制方面的不足。针对工业生产中UCM轧机轧制无取向硅钢横向厚差大的问题,在大量仿真计算的基础上,开发具有高次曲线函数的边部变凸度(Edge variable crown,EVC)的工作辊。采用该工作辊后,各种品种的无取向硅钢的横向厚差不大于10μm的百分比由24%提高到99%,横向厚差的均值小于6μm,远小于之前的13μm。 Medium-low grade non-oriented silicon steel is rolled often by universal crown mill(UCM) during cold rolling.Its shape quality is dependent on the coordinated control of several shape adjustment devices of UCM.In order to understand the shape control characteristics of UCM,coupling model of six-high rolling mill,based on two-dimensional varying thickness finite element rolls elastic deformation model and three-dimensional finite difference strip plastic deformation model,is setup for the detaile... 

对两种硅钢水溶性极厚绝缘涂层进行了不同温度的热老化实验。通过TG-DTA,GDS,FT-IR,SEM和光泽度仪等测试方法对老化的涂层进行分析表征,提出了评估硅钢水溶性极厚绝缘涂层热老化性能的合理温度区间,探讨了涂层热老化行为,并分析了两种涂层热老化性能的差异。结果表明,涂层附着性随着老化时间的延长逐渐下降。FT-IR表征结果显示,热老化过程中,涂料交联形成的化学键未发生断裂,交联剂氨基树脂的三嗪环被破坏是聚合物三维网络结构坍塌的主要原因。 Thermal aging expriments at different temperature were carried out on two types of water-soluble and extra-thick insulation coatings for non-oriented silicon steel,and a series of test methods such as glossmeters,TG-DTA,FT-IR,GDS,SEM were applied in analysis.For evaluating the thermal aging effect of this kind of insulation coating,the proper temperature range was proposed.The difference of aging performance between two coatings was been investigated and the related behaviors were been discussed... 

本发明涉及硅钢技术领域，尤其涉及一种硅钢连退炉辊除瘤方法及装置。包括连杆、手柄、磨削片、密封盖、端盖与套筒；磨削片垂直固接在连杆一端的外壁上，手柄固接在连杆的另一端，手柄与磨削片处于同一平面上；连杆套接在套筒内，连杆能沿套筒轴向移动，套筒固接在端盖上；硅钢连退炉辊下方的炉墙设有与连杆及磨削片相应的磨辊孔，端盖或密封盖固接在磨辊孔处。1)确定结瘤炉辊；2)确定结瘤在碳套辊上的位置；3)插入除瘤装置；4)磨削；5)抽出。本发明降低废品量，提高成材率；减少停炉处理结瘤时间，降低能耗，提高生产率；提高难磨瘤辊的修复率，降低炉辊成本。

目的提高硅钢的磁性能。方法采用多弧离子镀技术,在普通取向硅钢薄板两面沉积高硅FeSi合金层制得高硅梯度硅钢,并进行热处理,观察其显微组织,测量磁性能。结果退火态高硅梯度硅钢表面的高硅FeSi合金层与基底结合紧密,均匀致密。高硅梯度硅钢中硅含量呈梯度分布,最表层硅质量分数为11.0%,随着深度增加,硅含量逐渐降低,在距表面20μm处硅质量分数仍能达到6.5%。沉积态高硅梯度硅钢的电阻率ρ、低频铁损P10/50、高频铁损P10/1k及磁感应强度B8分别为68.6μΩ·cm,0.82W/kg,83.3 W/kg和1.73 T,退火后分别为63.1μΩ·cm,0.44 W/kg,54.38 W/kg和1.89 T。结论由于表层高硅FeSi合金层的存在,梯度高硅钢的低频磁学性能良好,但高频损耗需进一步改善。 Objective To improve the magnetic properties of silicon steel. Methods FeSi alloy coatings with high-silicon content were deposited on the surface of common grain-oriented silicon steel by cathodic arc plasma evaporation,and then a kind of high silicon gradient steel was prepared. The morphologies,content and magnetic properties of the samples were tested. Results FeSi alloy coatings were featured with compact microstructures and excellent adhesive quality with the substrates. The silicon conten...