硅钢资料

涂层技术在高磁感取向硅钢生产中起着重要的作用.根据生产实践,介绍了高磁感取向硅钢生产中涂层的种类和作用、涂料的成分和对产品性能的影响、涂层工艺质量控制要点和检验方法等,并提出了通过优化涂层工艺改善高磁感取向硅钢性能和外观质量的方法. Surface coating technique plays an important role in producing high magnetic inductivity grain-oriented silicon steel.Based on production practice,this paper describes the types and function of the coating,the composition of the coating and its effect on the product performance,the quality control and inspection method for the coatings,as well as proposes ways to improve the magnetic property and surface quality of the steel by optimizing the coating process. 

用于层叠铁芯的电磁钢板为一种电磁钢板，其在母材钢板(2)的表面，具有涂布电磁钢板用涂布组合物而成的绝缘被膜(3)，所述电磁钢板用涂布组合物含有环氧树脂、环氧树脂固化剂、以及弹性体改性酚醛树脂，所述弹性体改性酚醛树脂的含量相对于所述环氧树脂100质量份，为10质量份以上100质量份以下。

用Gleeble1500D模拟试验机在变形温度为950～1 200℃、应变速率为0.01～8s-1、最大变形程度为60%的条件下,对硅钢50A1300做单道次压缩试验,首先分析了不同参数对流变应力的影响,然后用回归法确定了应力模型中的变形激活能及材料常数,得到硅钢50A1300在峰值应力条件和稳态应力条件下的变形激活能分别为270.360和91.557kJ/mol,同时得到了流变峰值应力模型,模型的相关系数为0.997。最后通过作lnθ-ε图的方法找到了硅钢50A1300发生动态再结晶的临界应变量,并回归得到峰值应变量、临界应变量与参数Z/C的关系式。 To analyze the effects of different parameters on the flow stress and critical strain of the dynamic recrystallization,single-pass compression experiments were carried out with silicon steel 50A1300 specimens using a Gleeble1500D thermal simulator at a temperature range of 950-1 200 ℃ and strain rate range of 0.01-8 s-1 under the condition of maximum deformation of 60%.The average deformation activation energy is respectively 270.360 and 91.557 kJ/mol under the peak stress and steady-state stres... 

电动汽车电机在高速旋转时承受离心力和电磁力的作用,在进行电机转子设计时,既要考虑电磁性能,还要考虑机械性能。对电机转子受力情况进行了综述,分析了转子用电工钢疲劳性能参数的重要性,详细阐述了试样抛光、表面处理、试样的对中和安装对测试结果的影响。 The motor of electric vehicle bears big force for high speed rotors,mainly including centrifugal and electromagnetic forces.The magnetic and mechanical aspects of the electrical steel are crucial to machine design.In this paper,the forces applied on the motor were summarized and importance of fatigue properties was analyzed.The influence of specimen polish,surface treatment,alignment and installation on fatigue testing result were represented in detail. 

本发明涉及一种用于控制硅钢毛刺状厚度波动的工艺，包括如下步骤；将连铸坯送入加热炉中进行加热，连铸坯入炉温度为400‑680℃，连铸坯在炉时间为185‑220min；将加热后的连铸坯进行热轧，轧辊偏心量为0‑0.025mm，将热轧后的带钢进行卷取；将卷取后的带钢酸洗后进行冷轧，冷轧操作模式由多次阶段升降速模式调整为一次性升降速模式，且在一次性升降速阶段将MN‑AGC增益系数增大；将冷轧后的带钢进行卷取，退火后得到硅钢片成品。本发明所公开的用于控制硅钢毛刺状厚度波动的工艺，该工艺对加热、热轧、卷取及冷轧各工序进行优化协调，能够有效解决硅钢毛刺状厚度波动的问题，实现无取向硅钢全长厚度控制精度的提升，而且无需进行设备和系统改造，容易实现，易于推广。

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... 

电工钢反复弯曲次数是电工钢性能检验的重要指标之一,直接影响到用户在使用电工钢过程的机加工性能。主要分析了试样宽度、试样张力、晶粒取向、反复弯曲设备等因素对电工钢反复弯曲试验的影响,并对各个因素的影响程度进行量化以及原因探讨,从而归纳形成各影响因素的基本规律,以便为电工钢实际生产、用户使用提供科学指导。结果表明:试样宽度增加,反复弯曲次数也会不断增加,晶粒位向对取向电工钢的反复弯曲次数影响较大,当支座顶部到拨杆底部的距离减小或拉紧力增加时,反复弯曲次数会不断减小,但当拉紧力达到60N以上时,对反复弯曲次数影响不大,试样经退火后,反复弯曲次数略有上升。 The reverse bend number is an important performance of electrical steels′capabilities,affecting the machining performance directly when the customers used.It investigated some factors,such as sample′s width,sample′s tension load,grain orientation and equipment,how to effect the reverse bend test for electrical steel,measured the influence degree,and discussed the reason,in order to form basic rules which could be guided the manufacturing and using for electrical steel.Results showed that the rev... 

本发明是改善硅钢边缘裂边的工艺，包括：S1：对普通取向硅钢卷进行放卷、活套、清洗、加热、冷却；S2：对硅钢进行收卷，收卷张力系数为3‑9kg/mm2；S3：对硅钢卷用收紧带收紧打包，打包带张力为3‑8kg；S4：罩式炉进行炉底板检测，炉底板不平度＜2mm；S5：将收紧打包后的硅钢卷送入罩式炉内进行高温退火处理；本发明的优点：通过调整取向硅钢材料生产过程中对CA线收卷张力的控制、CA收紧带的使用与控制、罩式炉炉底板的平整度，实现1200mm以上宽度材料平均不良切边宽度≤45mm，边部裂边尺寸减少40％。有效提高了加工材料成材率，提高了纵剪材料使用率，降低了吨钢成本，减少了纵剪生产停顿，提高了效率。

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,... 

本发明公开了一种硅钢与碳钢混合生产条件下提高钢带表面清洁度的方法，硅钢与碳钢混合冷轧轧制条件下，通过控制冷轧乳化液指标，轧机工作辊表面粗糙度，退火工序氢气吹扫流量，平整及重分卷工序钢带涂油量等措施，能够提高钢带表面清洁度。

对冷轧无取向硅钢在冶炼过程中各个工序的顶渣进行了检测,分析了顶渣变化原因,并得出结论:硅钢生产宜采用复吹转炉,以降低吹炼终点渣中TFe含量,进而减轻对精炼的压力;使用低S、低Al2O3含量中间包覆盖剂;RH脱氧及合金化顺序采用先加硅铁后加铝;首罐宜经LF提温并降低渣中TFe。 The top-surface slag used for the various production processes in smelting coldrolled non-oriented electrical steel is tested and based on tested results the cause of the top surface slag change is analyzed.So it is concluded that the combined blown converter is more suitable to be used for smelting electrical steel in order to reduce the content of TFe in slag at blow end point and then much better results can be achieved during the period of refining.Secondly the tundish flux contenting low co... 

本发明公开了一种低磁致伸缩取向硅钢的制造方法，其包括步骤：(1)在硅钢基板上进行单面激光刻痕，其中进行激光刻痕的表面为第一表面，第一表面的背向一侧表面为第二表面；(2)基于激光刻痕的功率确定第一表面和第二表面的挠度差；(3)基于挠度差获得第一表面和第二表面所涂覆的绝缘涂层的涂覆量差；(4)基于涂覆量差，在第一表面和第二表面上涂覆绝缘涂层，其中第二表面的绝缘涂层涂覆量大于第一表面的绝缘涂层涂覆量。相应地，本发明还公开了采用上述制造方法所制得的低磁致伸缩取向硅钢，其第一表面和第二表面的磁致伸缩偏差≤2db(A)，并且所述低磁致伸缩取向硅钢的平均磁致伸缩≤55db(A)。