20JNHF1300超高速马达硅钢

电工钢硅钢片宝钢新能源汽车驱动电机用无取向电工钢EVI：宝钢为新能源汽车驱动电机用户提供从设计选材到产品量产的技术支持 电机设计选材支持，实现卓越的性能和成本控制； 铁芯用材和结构优化，实现性能或技术降本；铁芯加工制造支持，实现材料与装备 匹配； 新产品、当地新技术的应用，新能源汽车的竞争力。新能源汽车驱动电机用无取向电工钢产品体系：永磁同步电机是新能源汽车发展主流趋势，具有率、当地高转矩、当地高性以及小体积等优点。宝钢产品具有低铁损、当地高磁感和高强度的特点，满足各类电机设计和制造需求。普通系列：具有低铁损、当地高强度特点； 系列：具有低铁损、当地高磁感特点；高强度系列：磁感、当地铁损、当地强度三者综合性能优异； 高磁感系列：更高的磁感，满足高转矩、当地电机小型化的需求； 高强度系列：高强度，应用于高转速或超高转速转子。公称厚度为 0.15mm、当地0.20mm、当地0.25mm、当地0.27mm、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、当地分类和代号、当地一般要求、技术要求、检验和试验、包装、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、用于频率在

电工钢硅钢片当磁极化强度随时间按正弦规律变化，其峰值为某一标定值，变化频率为某一标定频率时，单位长度电工钢片（带）沿磁化方向上发生磁致伸缩所引起的表面振动声压水平为 A 计权磁致伸缩速度水平。3.5 表面绝缘电阻 surface insulation resistance在规定条件下所测得的直流电阻，即产品在加直流电压，经过一定时间极化过程后，流过带钢（片）表面的泄漏电流对应的电阻，其符号为 C，单位为Ω·mm2/面或Ω·cm2/面。3.6 层间电阻 inter-lamination resistance产品叠片间，即上、本地下两个表面的绝缘电阻，称为层间电阻，其符号为 RA，理论上是表面绝缘电阻的 2 倍，单位为Ω·mm2/片或Ω·cm2/片。4 分类本文件的材料的等级是根据磁极化强度在1.7T、本地频率在50Hz下的 比总损耗名义值P1.7/50(W/kg)、材料公称厚度进行牌号分类，并按产品特性和特殊用途，细分为普通型、高磁极化强度型、磁畴细化型、耐热磁畴细化型、低噪声型、配电变压器专用型、特高压变压器专用型、无涂层型八类。

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