电工钢硅钢片-【新能源硅钢】本地厂家值得信赖

电工钢硅钢片：本文件规定了公称厚度为 0.15mm、河北承德0.20mm、河北承德当地0.25mm、河北承德当地0.27mm、河北承德当地0.30mm 和 0.35mm 全工艺冷轧中频无取向电工钢带的术语和定义、河北承德当地分类和代号、河北承德当地一般要求、河北承德当地技术要求、河北承德当地检验和试验、河北承德当地包装、河北承德当地标志及检验文件等要求。本文件适用于宝山钢铁股份有限公司生产的、河北承德当地用于频率在 100Hz-10000Hz 磁路结构的、河北承德当地以终退火状态交货的全工艺冷轧无取向电工钢带产品(以下简称产品)。2 规范性引用文件下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其 版本（包括所有的修改单）适用于本文件。GB/T 228.1-2010 金属材料拉伸试验 第 1 部分：室温实验法GB/T 2521.1 全工艺冷轧电工钢 第 1 部分:晶粒无取向钢带(片)GB/T 2522GB/T 2791电工钢片（带）表面绝缘电阻、河北承德当地涂层附着性测试方法粘结剂 T 剥离强度试验方法 挠性材料对挠性材料GB/T 2900.60 电工术语 电磁学GB/T 3655 用爱泼斯坦方圈测量电工钢片(带)磁性能的方法GB/T 4340.1 金属材料维氏硬度试验 第 1 部分：试验方法GB/T 8170 数值修约规则与极限数值的表示和判定GB/T 9637GB/T 10129电工术语磁性 材料与元件电工钢片（带）中频磁性能测量方法GB/T 17505 钢及钢产品交货一般技术要求GB/T 18253 钢及钢产品检验文件的类型GB/T 19289 电工钢片（带）的密度、河北承德当地电阻率和叠装系数的测量方法YB/T 4292 电工钢带（片）几何特性测试方法Q/BQB 400-2020 冷轧产品的包装、河北承德当地标志及检验文件IEC 60404-8-8 Specifications for individual materials –Thin electricalsteel strip and sheet for use at medium frequencies

电工钢硅钢片：取样应从每一个验收组批上切取。8.2.2 产品的内圈和外圈应视为包装材，不代表整个钢卷的质量，试样不应从这部分截取。试样应避开焊缝和接带区域。8.2.3 取样位置距产品头尾两端不小于 3m，距产品边部不小于 15mm 处截取。对大单片磁性能、河北承德同城绝缘涂层附着性等有特殊取样要求的检测项目，则按照附录 A 的规定取样。8.2.4 通过合理地安排测试顺序，同一副试样可以用于测试多种特性。8.3 表面外观检查产品的表面外观质量用肉眼检查。8.4 尺寸和外形的测量8.4.1 尺寸和外形应采用合适的测量工具测量。测量位置距产品头尾两端不小于 3m。8.4.2 厚度的测量切边钢带的厚度应在距边部不小于 15mm 的任意位置处测量。测量所采用的千分尺精度应为0.001mm。8.4.3 不平度(波浪度)的测量

电工钢硅钢片Electrical steel, also known as silicon steel sheet, is an indispensable metal material in the power, electronics, and military industries, and is also the largest functional material in production. It is mainly used as the iron core for various motors, generators, and transformers. Since it is a functional material, its performance testing also revolves around "function". These indicators are often mentioned in trade and processing processes, and a brief understanding can help everyone better carry out their work. The performance testing of electrical steel mainly includes the following aspects: magnetic inspection, stacking coefficient inspection, coating adhesion inspection, repeated bending inspection, size and shape surface inspection, and conventional mechanical property inspection. In addition to the types of products listed above, there are also some special purpose electrical steel plates, such as 0.15 and 0.20mm thick 3％ Si cold-rolled non oriented silicon steel strips and 0.025, 0.05, and 0.1mm thick 3％ Si cold-rolled oriented silicon steel strips, which are used as intermediate and intermediate grade High frequency motors and transformers, as well as pulse transformers, etc； 0.7mm thick 3％ Si high-strength cold-rolled non oriented silicon steel plate for relays and power switches； High strength cold-rolled electrical steel plate for new high-speed motor rotors； Low carbon electrical steel hot-rolled thick and cold-rolled plates for magnetic shielding and high-energy accelerator electromagnets such as medical magnetic resonance tomography scanners； 4.5％ to 6.5％ Si high silicon steel plates for high-frequency motors, transformers, and magnetic shielding. Generally, motors, transformers, and other electrical components are required to have high efficiency, low power consumption, small size, and light weight. Electrical steel plates are usually guaranteed to have magnetic properties based on core loss and magnetic induction strength. Magnetic induction strength is the number of magnetic lines passing through a unit cross-sectional area of the iron core, also known as magnetic flux density. It represents the material‘s magnetization ability, measured in T. The magnetic induction strength of electrical steel plates is high, and the excitation current (also known as no-load current) of the iron core is reduced. Copper and iron losses are also reduced, which can save electrical energy. When the power of the motor and transformer remains constant, the magnetic induction intensity is high, and the design Bm can be increased. The cross-sectional area of the iron core can be reduced, which reduces the volume and weight of the iron core, and saves the amount of electrical steel plates, wires, insulation materials, and structural materials used. This can reduce the total loss and manufacturing cost of the motor and transformer, and is beneficial for the manufacturing, installation, and transportation of large transformers and motors. The main requirements for the performance of silicon steel are: 1. Low iron loss is the most important indicator of the quality of silicon steel sheets. Various countries classify grades based on iron loss values, with the lower the iron loss, the higher the grade. 2. Under strong magnetic fields, the magnetic induction intensity (magnetic induction) is high, which reduces the volume and weight of the iron core of the motor and transformer, saving silicon steel sheets, copper wires, and insulation materials. 3. The surface is smooth, flat, and the thickness is uniform, which can improve the filling coefficient of the iron core. 4. Good lamination performance is more important for manufacturing micro and small electric motors. 5. The adhesion and weldability of the surface insulation film are good, which can prevent corrosion and improve the punching performan