電工鋼硅鋼片：產(chǎn)品的牌號是按照下列給出的次序組成：B公稱厚度(mm)的 100 倍用于表示無取向電工鋼類型的字符，其中A、天津本地WW：普通型AR：應(yīng)力退火型AH、天津WH：型（注：普通型 WW、天津型 WH 產(chǎn)品牌號可以使用至2025 年底） 比總損耗名義值 P1.5/50(W/kg)的100 倍寶鋼英文名稱 Baosteel 的首字母（可缺?。㏎/BQB 480－20213示例 1：B35A210 表示公稱厚度為 0.35mm 的普通型無取向電工鋼， 比總損耗名義值P1.5/50為2.10W/kg；示例 2：B35AR300 表示公稱厚度為 0.35mm 的應(yīng)力退火型無取向電工鋼， 比總損耗名義值P1.5/50為3.00W/kg；示例 3：B35AH230 表示公稱厚度為 0.35mm 的型無取向電工鋼， 比損耗名義值P1.5/50為2.30W/kg。示例 4：35WW210 表示公稱厚度為 0.35mm 的普通型 WW 無取向電工鋼， 比損耗名義值P1.5/50為2.10W/kg。示例 5：35WH230 表示公稱厚度為 0.35mm 的型 WH 無取向電工鋼， 比損耗名義值P1.5/50為2.30W/kg

電工鋼硅鋼片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:

電工鋼硅鋼片對硅鋼性能的要求主要是：1、天津同城鐵損低，這是硅鋼片質(zhì)量的重要指標(biāo)。各國都根據(jù)鐵損值劃分牌號，鐵損愈低，牌號愈高。2、天津同城較強(qiáng)磁場下磁感應(yīng)強(qiáng)度（磁感）高，這使電機(jī)和變壓器的鐵芯體積與重量減小，節(jié)約硅鋼片、天津同城銅線和絕緣材料等。3、天津同城表面光滑、天津同城平整和厚度均勻，可以提高鐵芯的填充系數(shù)。4、天津同城沖片性好，對制造微型、天津同城小型電動機(jī)更為重要。5、天津同城表面絕緣膜的附著性和焊接性良好，能防蝕和改善沖片性。絕緣涂層將硅鋼板加工成鐵芯時，為改善其加工性能并防止相當(dāng)于鋼板厚度自乘的渦電流損失，采用連續(xù)涂鍍設(shè)備，在鋼板上下面噴射絕緣涂液