矽钢片B50A1300

电工钢硅钢片从2008年5月15日，宝钢 卷合格取向电工钢成功下线以来，宝钢取向电工钢品种迅速拓展至普通型、青海当地高磁感型和细化磁畴高磁感型三大类。本手册综合介绍了宝钢取向电工钢的牌号、青海当地品种、青海当地规格、青海当地应用范围、青海当地电磁性能、青海当地力学性能、青海当地尺寸板形公差、青海当地相关的使用技术及广泛的应用业绩，使用户对宝钢取向电工钢产品能进一步了解，进而充分利用宝钢电工钢产品特性，生产出更加优良的下游产品。宝钢可以提供从变压器铁心设计材料选择到变压器制造，包括：核心设计中的材料选择，以控制性能和成本；从成本和性能角度优化钢材和结构；为核心制造提供技术支持，以确保 性能；新产品和新技术，提高变压器产品的竞争力。工作经验：40多年前从事晶粒取向电工钢，具有完整的研发、青海当地制造和应用能力产品：产品种类繁多，包括对流、青海当地高磁导率、青海当地畴细化、青海当地低磁致伸缩和无铬酸盐涂层晶粒取向电工钢等级：铁损P1.7/50低于0.55W/kg的 级能力：中国有史以来 家开发出具有制造100％优质晶粒取向电工钢。晶粒取向电工钢产量居世界 。宝钢不断更新和改进性能变压器用产品数据库，为自定义ers提供一系列来自机械性能的全套数据和基本磁性能下的特殊性质工作条件根据不同的要求，宝钢可以为客户提供性能数据原始曲线和其他形式的数据。GB20052-2020新能源效率一级产品S15-M-200/10、青海当地S15-M-400/10变压器成功投产用高等级GO电工钢B18R055制造，B20R060，其空载损耗和负载损耗均满足新的1级变压器的要求。宝钢高级晶粒取向电工钢B27R090成功应用于双百万变压器的制造ODFPS-1000000/1000用于超高压交流输电项目包括空载损耗在内的所有变压器特性，空载电流和噪声符合设计要求。宝钢优质晶粒取向硅钢B23R075已成功应用于转炉生产昌吉-古泉±1100kV特高压直流输电变压器 电网项目。空载损耗、青海当地空载电流和噪音变压器的各项性能完全符合技术要求。 无机涂层，S/T2 涂层为磷酸盐和二氧化硅为主的无机成分混合物。该涂层具有较高的耐热性，在干的氮气或者干的氮氢混合保护气氛中可以承受 850℃应力退火。对绝缘油、青海当地清漆、青海当地机械油、青海当地制冷气体等有高耐腐性。 无 Cr 环保涂层,H,涂层成分中不含 Cr 元素

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. Specific total loss (iron loss) is the total power consumed per unit mass of material when the magnetic polarization waveform remains sinusoidal, with a specific peak and frequency. The specific total loss is represented by the symbol P (Jm/f), in W/kg. Example: P1.5/50 represents the specific total loss at a maximum magnetic polarization intensity of 1.5T and a frequency of 50Hz. 3.2 Magnetic Polarization Q/BQB 480-20212 Magnetic polarization intensity refers to the peak magnetic polarization intensity of a specific magnetic field intensity when a sample is subjected to alternating magnetization. Its symbol is J (H), and the unit is T (Tesla). Example: J5000 represents the peak magnetic polarization intensity corresponding to a magnetic field intensity peak of 5000A/m. The material grades in this document are classified based on the nominal maximum specific total loss P1.5/50 (W/kg) at a magnetic polarization strength of 1.5T and a frequency of 50Hz, as well as the nominal thickness of the material. They are further divided into three categories based on product characteristics: ordinary type, stress relief annealing type, and high-efficiency type. Example 1: B35A210 represents a common non oriented electrical steel with a nominal thickness of 0.35mm, and the maximum nominal specific total loss value P1.5/50 is 2.10W/kg； Example 2: B35AR300 represents a stress relieved annealed non oriented electrical steel with a nominal thickness of 0.35mm, and the maximum nominal specific total loss value P1.5/50 is 3.00W/kg； Example 3: B35AH230 represents an efficient non oriented electrical steel with a nominal thickness of 0.35mm, and the maximum nominal specific loss value P1.5/50 is 2.30W/kg. Example 4: 35WW210 represents a normal type WW non oriented electrical steel with a nominal thickness of 0.35mm, and the maximum nominal specific loss value P1.5/50 is 2.10W/kg. Example 5: 35WH230 represents an efficient WH non oriented electrical steel with a nominal thickness of 0.35mm, and the maximum nominal specific loss value P1.5/50 is 2.30W/kg. The classification and code of insulation coatings shall comply with the provisions of Table 2. Table 2 Classification and Code of Insulation Coatings Type Code Characteristics of Insulation Coatings Semi organic Thin Coating A Improves Punching Performance and Has Good Weldability Semi organic Thick Coating H has Good Punching Performance and High Interlayer Resistance Semi organic Chromium Free Thin Coating K does not contain chromium and has good weldability Semi organic Chromium Free Thick Coating M does not contain chromium and has good insulation performance Semi organic Chromium Free Extreme Thick Coating J does not contain chromium and has excellent insulation performance Semi organic Chromium Free Ultra Thick Coating L does not contain chromium and has extremely high insulation performance Self adhesive Coating

电工钢硅钢片本文件按照 GB/T 1.1—2020《标准化工作导则 部分：标准化文件的结构和起草规则》的规定起草。本文件参考 IEC 60404-8-8:2017 进行编制。本文件代替 Q/BQB 481－2018。本文件与 Q/BQB 481－2018 相比，主要修改内容如下：——新增高强度型 AHV-M 产品；——新增高强度型 AHS 产品；——删除表 2 半有机无铬极厚涂层；——新增表 3 高强度型、青海本地高强度型二类产品磁性能和技术特性；——新增表 3 0.25mm 厚度规格产品；——删除表 3 型 B15AHV1000、青海B35AHV1900 牌号产品、青海高磁感型 B35APV1900 牌号产品；——新增表 3 高磁感型 B15APV1000、青海B20APV1200 牌号产品；——提高了表 3 部分牌号产品的磁极化强度标准；——新增表 4 高强度型和高强度型二类产品的力学性能标准；——修改绝缘涂层附着性评价级别代码；——加严了表 5 纵向厚度偏差标准；——加严了不平度标准；——删除内应力检测项目；——附录 A 删除了半有机无铬极厚涂层；——修订了附录 B；——修订附录 D 部分牌号产品的磁性能和力学性能典型值；——新增附录 D 高强度型和高强度型二类产品的磁性能和力学性能典型值；——修订附录 F 本文件与宝钢股份原薄规格牌号对照表