宝钢取向硅钢卷M155-35S5

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、华尔网当地新技术的应用，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、华尔网当地高转矩、华尔网当地高性以及小体积等优点。宝钢产品具有低铁损、华尔网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、华尔网当地高强度特点； 系列：具有低铁损、华尔网当地高磁感特点；高强度系列：磁感、华尔网当地铁损、华尔网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、华尔网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、华尔网当地0.20mm、华尔网当地0.25mm、华尔网当地0.27mm、华尔网当地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、华尔网当地分类和代号、华尔网当地一般要求、华尔网技术要求、华尔网检验和试验、华尔网包装、华尔网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、华尔网用于频率在

电工钢硅钢片电工钢钢板经冲片、华尔网同城剪切、华尔网附近弯曲会引入残余应力，导致磁性能劣化。应力退火（SRA）可以残余应力对磁畴移动与转动的阻碍作用，恢复电磁性能。E.2 在钢板或铁心叠片的状态下进行应力退火的注意事项如下。1)、华尔网附近避免氧化和渗碳为了防止氧化应力退火应该在保护气氛下进行，通常是 10％以下氢气（H2）和 90％以上氮气（N2）、华尔网附近100％氮气（N2）或者氨分解气氛的非爆炸性保护气氛，露点控制在 0℃以下。冲压加工过程引入的冲压油在退火前应完全去除，防止在退火中发生渗碳，劣化产品磁性。2)、华尔网附近退火温度及保持时间退火温度指材料温度，750℃为宜。为使得钢板或铁心叠片各部分退火均匀，需要调整温度与保持时间。温度太低不足以残余应力的影响，温度太高会破坏涂层绝缘性。3)、华尔网附近冷却时间应当避免急剧冷却使材料产生应力应变。冷却时间根据电工钢退火数量进行调整。对于退火小吨位数量时，可按每小时不超过 25℃ 的冷却速度冷却到 350℃,以避免冷却过程中产生应力应变。对于退火大吨位数量时，应采取更加缓慢的冷却速率，以期获得 效果。

电工钢硅钢片In addition to the types 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, used for medium and high-frequency motors, transformers, and pulse transformers； 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 [1] [2]. The requirements for the performance of electrical steel plates are as follows:Low core loss (PT)Iron core loss refers to the ineffective electrical energy consumed by an iron core when magnetized in an alternating magnetic field of ≥ 50Hz, abbreviated as iron loss, also known as alternating loss, and its unit is W/kg. The ineffective electrical energy consumed due to various obstacles caused by magnetic flux changes not only loses electrical energy through the heating of the iron core, but also causes temperature rise of the motor and transformer. The iron loss (PT) of electrical steel includes three parts: hysteresis loss, eddy current loss (Pe), and anomalous loss (Pa). Electrical steel plates have low iron loss, which can save a lot of electricity, prolong the operating time of motors and transformers, and simplify cooling devices. Due to the iron loss of electrical steel plates, which accounts for 2.5％ to 4.5％ of the annual electricity generation in various countries, countries always try their best to reduce iron loss in the production of electrical steel plates, and use iron loss as the most important indicator to assess the magnetic properties of products. The iron loss value of products is used as the basis for classifying product grades. Cold rolled oriented electrical steel: Cold rolled oriented electrical steel is a high-end product in the field of electrical steel. Compared with cold rolled non oriented electrical steel, its magnetism has strong directionality； It has superior high magnetic permeability and low loss characteristics in the direction of easy magnetization rolling. The iron loss of oriented steel strip in the rolling direction is only 1/3 of that in the transverse direction, and the ratio of magnetic permeability is 6:1. Application: The main purpose of cold-rolled oriented silicon steel strip is for transformer manufacturing.Full process cold rolled non oriented silicon steel coating: The surface of the full process cold rolled silicon steel is coated with a semi transparent insulation coating, which has different codes in different standards. Taking Baosteel‘s Q/BQB 480 2014 as an example: