硅钢资料

提出了一种基于爱泼斯坦方圈族(包括标准25cm爱泼斯坦方圈、缩比的17.5cm和20cm爱泼斯坦方圈)和二级加权处理方法对爱泼斯坦测试数据,包括有效磁路长度、比损耗、励磁功率,进行处理的晶粒取向电工钢磁性能扩展模拟方法。详细地考察了励磁频率、试样剪切角度和环境温度对爱泼斯坦方圈测量结果的影响。研究结果表明,利用本文提出的爱泼斯坦方圈组合以及二级加权处理技术,可以有效地建立取向电工钢损耗模拟模型,从而更加准确地确定了取向电工钢的损耗,改善并提高了爱泼斯坦磁性能测试数据的应用价值。 The extended modeling of the magnetic properties of GO(grain oriented) electrical steel is presented in this paper which is based on a set of standard and scaled-down Epstein frames and a proposed two-level weighted processing of Epstein data, including the mean magnetic path length, specific magnetization loss and exciting power. The effects of excitation frequency, strip angle and ambient temperature on the results obtained from the Epstein frames are investigated. It is shown that using the p... 

利用场发射电镜及能谱仪研究了取向电工钢薄、厚板坯铸锭中不同区域的析出相差异,确定了MnS、AlN及Fe3C的析出顺序和形貌特征。结果表明AlN以先析出的MnS为形核核心,形成粗大微米级的复合析出相。针状Fe3C既可以在复合析出相表面形成也可以在基体中单独出现,主要受冷却速度的影响。在1250℃保温1～2 h,AlN、Fe3C均可完全回溶,但部分MnS仍不回溶。MnS尺寸随着保温时间延长而增大。导致热轧板中沿轧向分布的粗大MnS,减弱了粒子钉扎力。 Precipitates in thin and thick slabs of electrical silicon steel were investigated by means of field emission SEM and EDS analysis.The precipitation sequence and the morphology of MnS,AlN and Fe3C particles were identified.AlN particles are observed to be nucleated on surface of MnS forming micron-meter-sized complex particles.Acicular Fe3C can precipitate on surface of the complex MnS/AlN particles or directly from matrix depending on cooling rate of the slabs.After holding at 1250 ℃ for 1-2 h,... 

本发明公开了一种超薄取向硅钢用的半有机绝缘涂料。该半有机绝缘涂料，按质量百分比计，包括以下组分：10～25％磷酸盐，1～10％含有环氧基的硅烷耦合剂，0.2～2.0％有机硅烷，1～10％铬酐，1.5～6％二氧化硅粒子，0.3～5％碱，余量为水；其中二氧化硅粒子的粒径为100～300nm。该半有机绝缘涂料应用于超薄取向硅钢表面时，既提高了涂层与基体的附着性，又保证了涂层的绝缘性和耐热性，涂层附着性为A级，叠片系数大于0.96，可耐900℃高温，并且涂层较薄(小于1μm)时，钢板的绝缘电阻大于30Ω·cm2/片，绝缘性能优异，可满足超薄取向硅钢的应用需求。

本实用新型属于冷轧硅钢技术领域的一种冷轧硅钢无压回水自动控制设备，包括底座，底座外表面的上端固定连接有工作台，工作台外表面上端的两侧分别固定连接有固定柱和压辊主体，工作台外表面上端的中部滑动连接有移动架，压辊主体的下端设置有集水槽，集水槽的内表面设置有浮球液位传感器。液压杆工作推动移动架位移到合适的位置，再通过气缸使伸缩管发生位移，使出水口接近钢板，设置的水箱高于出水口所以水可以在重力的作用下流淌，流出的水流到集水槽内，水流在集水槽内聚集，水流使浮球液位传感器的浮球上升，上升到合适的位置时，浮球液位传感器通过电缆发生电信号至控制器，此设置可以实现设备的自动控制，省去人工进行操作。

【作者】 陶永根； ...

本发明属于涂料技术领域，具体涉及一种用于硅钢水性无机绝缘涂料的助剂及其制备方法，用于硅钢水性无机绝缘涂料的助剂，包括以下质量份配比的材料：磷酸二氢铝溶液10‑40份、氧化镁0.1‑5份、增稠剂0.01‑5份和水1‑80份。本发明还提供了上述助剂的制备方法，通过向磷酸二氢铝溶液中加入氧化镁悬浮液，得到铝镁混合液备用，然后在室温及搅拌条件下，向铝镁混合液中加入增稠剂预溶胶得到所需助剂，利用本申请的助剂制备了无机物料，结果表明，本发明提供的助剂适用于硅钢水性无机绝缘涂料，能改善涂料的稳定性，有效提高硅钢绝缘涂层的附着力和耐腐蚀性，改善硅钢涂层的综合性能。

分别采用传统冷轧轧制液和纳米TiO₂的冷轧轧制液,对无取向硅钢板进行了四辊冷轧实验.重点研究两种冷轧轧制液的轧制润滑性能和对轧后硅钢薄带表面质量和耐蚀性能的影响.通过场发射电子显微镜和能谱仪对使用两种轧制液轧后得到的硅钢薄带表面形貌和成分进行了分析.给出了轧制液中TiO₂纳米粒子在轧制过程中的抗磨减摩机理.在轧制载荷较高时,纳米TiO₂轧制液具有优良的轧制润滑性能并能显著改善轧后硅钢薄带的表面质量.同时在高载荷作用下,TiO₂纳米粒子被压入硅钢薄带基体,形成一个滑动系来支撑载荷,从而使润滑膜的耐磨性提高. Non-oriented silicon steel strips were rolled on a four-high cold rolling mill lubricated by a traditional cold rolling liquid and a nano-TiO₂ cold rolling liquid,with emphasis on studying the rolling lubrication performance of both the liquids and their effect on the surface quality and corrosion resisting property of the silicon steel strips.The surface micrograph and composition of the silicon steel strips after being rolled with both the liquids were characterized by field emissio... 

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... 

本实用新型公开了一种新型嵌线结构的硅钢片组件，包括硅钢片组和骨架，硅钢片组由若干相同形状的硅钢片堆叠而成，硅钢片为倒U型的薄片体，骨架由一限位框架和两固定杆组成，限位框架由一矩形框架和位于矩形框架四角的限位凸块组成，硅钢片组卡设在矩形框架上，限位凸块对硅钢片组进行限位，两固定杆平行设置在硅钢片组的上方，且固定杆的两末端分别与限位凸块相固定。本实用新型具有装配简单、不易变形的优点。

双辊连铸技术是冶金及材料领域内的一项前沿技术,对于生产高品质硅钢具有独特优势.本实验研究了一种双辊铸轧w[Si]=4.5%的无取向硅钢,考察其铸态和常化处理后样品的组织、织构及析出相尺寸特征.结果表明:铸带组织以与铸带法向成5~20(°)倾角的柱状晶为主,晶内存在少量0.3~0.4μm的AlN析出相,铸带织构以λ(<001>//ND)织构为主,表层织构漫散.950℃/10 min常化处理后,析出相尺寸增大,表层λ织构增强. As an advanced technique of metallurgy and material science,twin- roll strip casting has unique advantages for producing high quality silicon steel. The present study was aimed at a 4. 5% Si non- oriented electrical steel for analyzing the structure,texture and the size of precipitates at the initial and normalized state. The results revealed that the initial structure mainly consisted of columnar grains with 5 ~ 20( °) angle to the normal of cast strip,and some AlN precipitates of 0. 3 ~ 0. 4 μ... 

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... 

通过实验室25 kg真空感应炉冶炼和锻轧研究了0.26%～0.95%Al含量对0.5 mm 2.2%Si无取向硅钢冷轧板组织、织构和磁性能的影响。试验结果表明,0.26%～0.81%Al含量时,随钢中Al含量的增加,成品退火钢板的晶粒尺寸增加同时铁损减少;当Al含量大于0.81%时,随Al含量增加,钢板的晶粒尺寸减小,同时铁损增加。Al含量对硅钢板磁感的影响没有明显的规律。2.2%Si无取向硅钢的合适Al含量为0.48%～0.81%。 The effect of 0.26%～0.95%Al content on structure,texture and magnetic performance of 0.5 mm cold rolled sheet of 2.2%Si non-oriented silicon steel has been studied by a 25 kg vacuum induction furnace smelting,and forging -rolling in laboratory.Results show that as 0.26%～0.81%Al,with increasing Al content in steel the grain size of annealed finished sheet increases while iron loss of sheet decreases,and as Al content in steel is more than 0.81%,the grain size of sheet decreases while iron loss in...