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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:
鹿程国际贸易有限公司成立以来凭着严格的 河南开封新能源电工钢产品质量、合理的交易价格、优质的销售服务、诚实的商业信誉、完善的销售网络及售后服务，在广大 河南开封新能源电工钢客户群体中赢得了口碑。公司全体员工将不懈努力，执着追求质量和品牌形象，奉行“质量是生命、服务是灵魂”的企业经营理念来满足市场及客户的需求。
电工钢硅钢片硅钢是一种硅铁合金。用硅钢轧制的片材是电工领域中应用广的软磁材料，因而硅钢片又称电工钢片。硅钢片广泛用于电动机、发电机、变压器、扼流圈、电磁机构、继电器及测量仪表中电机工业大量使用厚度为0.35～0.50mm的硅钢片,用于：中型旋转机，压缩电机，通用马达，小型精密电机，电动汽车，压缩机，通用电机，电源变压器，精密变压器，节能电机，焊机变压器，稳压器，磁性密封器，加速器用电磁铁，汽车电机等；在电信高频技术中常用0.05~0.20mm的薄带钢片,以便更有效地降低涡流损耗。热轧硅钢片厚度为0.35～0.50mm，密度为7.55～7.70g/cm3,多用于大、中、小型交、直流电动机；冷轧无取向硅钢片厚度为0.35～0.50mm，密度为7.65～7.75g/cm3，多用于大型交流发电机、电动机，大、中、小型交、直流电动机；冷轧取向硅钢片厚度为0.23mm 0.27mm 0.3mm 0.35mm，密度为7.65g/cm3,多用于电力变压器、油浸式变压器，干式变压器，电抗器、磁放大器等；冷轧取向薄带厚度为0.05～0.20mm，多用于无线电高频变压器。
电工钢硅钢片硅钢以铁芯损耗(简称铁损)和磁感应强度(简称磁感)作为产品磁性保证值。硅钢铁损低可节省大量电能，延长电机和变压器工作运转时间和简化冷却系统。由于硅钢铁损造成的电量损失占全年发电量的2.5％～4.5％，其中变压器铁损约占50％，1～100kW小型电机约占30％，日光灯镇流器约占15％。硅钢磁感高，铁芯的激磁电流降低，也节省电能。硅钢磁感高可使设计的 磁感(Bm)高、河南开封本地铁芯体积小、河南开封本地重量轻，节省硅钢、河南开封本地导线、河南开封本地绝缘材料和结构材料等，既使电机和变压器损耗和制造成本降低，又便于组装和运输。由带齿圆形冲片叠成铁芯的电机在运转状态下工作。要求硅钢板为磁各向同性，用无取向硅钢制造。由条片叠成铁芯或由条带卷绕成铁芯的变压器在静止状态下工作，用磁各向异性大的冷轧取向硅钢制造。此外，要求硅钢具有好的冲剪性，表面光滑平整和厚度均匀，好的绝缘膜和磁时效小。
电工钢硅钢片：如有，则为产品特性代表性字符，其中LM：低噪声系列（Low Magnetostriction series）NC：无涂层系列（Non-Coat series）比总损耗名义值 P1.7/50(W/kg)的 100 倍如有，则为产品特定用途，其中T：特高压变压器专用型（Special for UHV Transformer）D：配电变压器专用型（Special for Distribution Transformer）取向电工钢的类型，其中G、河南开封本地Q：普通型（Conventional Grain-oriented grades）P、河南开封本地QG：高磁极化强度型（High-Permeability grades）R、河南开封本地RK：磁畴细化型（Domain-Refined grades）HS：耐热刻痕磁畴细化型（Heatproof Scribed domain-refinedgrades）（注：普通型 Q、河南开封本地高磁极化强度型 QG、河南开封本地磁畴细化型 RK 产品牌号可以使用至 2025 年底）材料公称厚度(mm)的 100 倍宝钢英文名称 Baosteel 的首字母（可缺省）
