硅钢资料

采用双辊连铸工艺制备了硅的质量分数分别为0.5%,1.0%,3.0%,4.5%的硅钢薄带,用光学显微镜观察其组织,并研究了后处理工艺对薄带组织和性能的影响。结果表明:硅含量为0.5%和1.0%的薄带适合采用一次冷轧+850～950℃退火的后处理工艺,而硅含量在3.0%以上的薄带适合采用二次冷轧+950℃退火的后处理工艺;硅含量为3.0%和4.5%的薄带在冷轧并950℃退火后,其磁性能最佳,铁芯损耗约为4.30 W·kg^-1,磁感应强度约为1.68T。 Silicon steel thin strips with silicon content of 0.5wt%,1.0wt%,3.0wt%and 4.5wt%were prepared by twin-roll continuous casting process,and the microstructure of the strips were observed by means of optical microscopy,and on the basis,the effect of post-treatment process on microstructure and properties of the strips was studied.The results show that the post-treatment process of one-time cold rolling and annealing between 850—950℃was suitable for the strips with silicon content of 0.5wt%and 1.0wt... 

本发明提出了一种控制磁畴结构来降低铁损的取向性电磁钢板的制造方法中，即使在实施了去应力退火的情况下，也能够保持铁损降低效果，并且在磁畴控制处理后磁通密度不会降低的方法。本发明的制造方法中，在取向性电磁钢板的表面，沿与钢板的轧制方向交叉的方向线状地照射周边比中心低的环状的强度分布的激光。

1.本外观设计产品的名称：硅钢片。;2.本外观设计产品的用途：多片硅钢片用来共同组成马达的转子的其中一个部件。;3.本外观设计产品的设计要点：在于本外观设计产品的形状。;4.最能表明设计要点的图片或照片：立体图。;

本实用新型涉及硅钢片铁芯性能测试技术领域，公开了CD型硅钢片铁芯性能测试工装，包括：机台，上部后侧固定有竖直向上的后侧板；托板，水平设置在所述机台上方；夹持机构，设置在所述机台上，所述夹持机构包括：第二气缸，其驱动杆端部固定套接有夹持块，夹持块外端部固定有橡胶缓冲块；橡胶垫，固定在所述托板右侧上部。本实用新型通过设置第一气缸驱动连接于托板，可以先根据硅钢片的厚度，通过操作气缸控制器控制第一气缸工作带动托板在机台上进行升降高度，从而调整托板与夹持块的高度差，提高装置的实用性和广泛性，较为实用，适合广泛推广和使用。

本申请提供了一种取向硅钢铸坯的制备方法及铸坯系统，该制备方法用于对精炼后的钢水进行连铸处理，所述连铸处理包括以下步骤：进行凝固处理，以使所述精炼后的部分钢水凝固形成坯壳；凝固处理时，进行电磁搅拌，以使所述精炼后的剩余钢水最终形成铸坯，其中，所述电磁搅拌的位置和结晶器出口的间距为0.3～1.5m，所述电磁搅拌的电流范围为0A～900A。上述制备方法通过调节电磁搅拌的位置和电流大小来调节电磁搅拌的强度，进而通过电磁搅拌的强度来调节等轴晶的生成量，扩大等轴晶率的范围。

对RH法(真空循环脱气法)生产的冷轧硅钢的脱硫原理及影响因素进行了分析研究。研究表明:降低顶渣中FeO、MnO的含量,提高钢液温度,增加脱硫剂的加入量并延长其循环时间有利于提高脱硫效率。 The principles of desulfurization and its influence factors of cold rolling silicon steel during RH process have been studied in this paper.The result indicated that reducing contents of FeO and MnO,rising temperature of the liquid steel,increasing quantity of desulfurizer,lengthening cycle time of desulfurzer are benefit for desulfurization. 

研究了应用电感耦合等离子体质谱法(ICP-MS)测定硅钢中痕量铜和镍的分析方法。采用硝酸分解样品,通过内标校正和基体匹配消除了基体干扰的影响,同时根据测量时存在的质谱干扰情况,选择同位素65Cu和60Ni作为测定元素和通过调节仪器参数使双电荷离子的产率最低,以减少带来的干扰。该方法用于硅钢中痕量铜和镍的测定,所得的结果与ICP-AES法测定结果完全吻合,各元素测定结果的RSD值小于5%,加标回收率为97.3%～100.3%。 A method for the determination trace copper and nickel in silicon steel by inductively coupled plasma mass spectrometry(ICP-MS) was studied.The samples were dissolved in HNO3.The effect of matrix interference was eliminated by internal standard correction and matrix matching.Meanwhile,according to the mass spectral interferences in determination,the isotopes including 65Cu and 60Ni were used as measuring elements.The yield of double-charge ions were minimized by adjusting instrumental parameters... 

为了解决在纹理背景下冷轧硅钢表面缺陷的分割问题,提出了基于局部信息结构张量和活动轮廓模型的硅钢表面缺陷分割方法。将图像的局部信息引入到结构张量中;在结构张量提取的特征空间中,以KL距离作为区域的概率密度相似性度量建立分割图像的活动轮廓模型;采用Split-Bregman数值解法对模型进行求解。运用提出的分割方法对硅钢表面的一些常见缺陷如纵向划伤、横向划伤、异物和孔洞等进行分割实验。实验结果表明,该方法可以准确地分割出硅钢表面缺陷区域,验证了该方法的有效性。 In order to address the segmentation problem for cold rolled silicon steel surface defect based on the texture background,a novel method based on structure tensor and active contour model is proposed.Image local information is introduced to the structure tensor.In the extracted feature space of structure tensor,KL distance is treated as a regional similarity measure of the probability density to establish active contour model for image segmentation.The numerical solution of Split-Bregman is used... 

国元证券发布深度研究报告《变压器行业深度研究报告-海外变压器供需错配-国产厂商...

基于BOF→RH→CSP生产工艺,研究了RH精炼过程钢中夹杂物类型演变及MgO·Al2O3夹杂物形成规律,同时对MgO·Al2O3夹杂物的形成条件进行了热力学计算,借助CFD数值模拟软件研究了RH精炼过程卷渣行为。研究发现,RH精炼过程20和30 min时,w([MgO])/w([Al2O3])为0.005~0.020,未发现MgO·Al2O3夹杂物;RH出站后夹杂物w([MgO])/w([Al2O3])为0.3~0.5,且RH精炼结束后MgO·Al2O3夹杂物占夹杂物总量的58.4%;另外,RH精炼过程钢液表面速度CFD模拟结果为0.57 m/s,大于临界卷渣速度0.45 m/s,且顶渣成分与夹杂物成分相近,存在卷渣现象。热力学计算表明,钢液与炉渣平衡时钢中w([Al])为0.31%~0.37%,w([Mg])为0.00024%~0.00028%,在MgO·Al2O3生成区域之内。减少RH处理过程卷渣,浇铸过程下渣及控制顶渣和包衬相中MgO质量分数可抑制MgO·Al2O3夹杂物形成。 Based on the practical production of non-oriented silicon steel, the evolution of inclusion type and the formation of MgO·Al2O3inclusion were analyzed in the process of BOF→RH→CSP. The thermodynamic conditions for forming MgO·Al2O3inclusion were discussed and the behavior of slag entrapment of molten steel was also simulated by CFD software during RH refining. The results showed that the value of w([MgO])/w([Al2O3]) was in the range of 0.005-0.020 and no MgO · Al2O3 inclusion was observed at 20 ... 

本实用新型属于抛丸设备技术领域，具体涉及一种硅钢抛丸用耐磨抛丸头，包括壳体、进丸管、定向套、分丸轮、多块截面呈工字形的叶片和两块对称设置的护板，多块叶片沿护板的周向均匀分布，叶片安装在两块护板之间；叶片的左右两侧分别设有一组卡槽，一组卡槽包括两个卡槽，一组卡槽上滑动连接有能与叶片表面接触的耐磨板；叶片上设有用于固定耐磨板位置的固定件；壳体内可拆卸的安装有耐磨衬板。在本方案中，将耐磨板可拆除的安装在叶片中，耐磨板对叶片有保护的作用，能避免叶片被磨损；当耐磨板损坏后只需更换新的耐磨板，而不需更换叶片，能够有效节省成本。同样的耐磨衬板对壳体也有保护作用，能够在很大程度上减少壳体被磨损。

承钢采用铁水预处理(脱硫)→转炉提钒→转炉冶炼→RH精炼→连铸→轧制工艺,成功研发了无取向电工钢CGW800。试制的CGW800钢碳含量≤0.006 0%、氮含量<0.004 0%,热轧后的金相组织为铁素体和少量渗碳体,晶粒度5.5级,获得了较粗大、均匀的晶粒,钢板的成分和力学性能达到了标准要求。 In Cheng Steel,the CGW800 non- oriented electrical steel is successfully developed with process of hot metal pre- treating,vanadium extracting with converter,smelting with converter,RH refining,continuous casting and rolling. In the steel,the carbon content is not higher than 0. 006 0%,nitrogen less than0. 004 0%,the metallographic structure after hot rolling is ferrite and a little amount of cementite,grain size is 5. 5 degree,relative large and even grain got. The composition and mechanical pr...