電工鋼硅鋼片：同一產(chǎn)品在磁極化強(qiáng)度 1.5T、河南平頂山同城頻率 50Hz 或 60Hz 條件下，按 GB/T 13789 單片法所測(cè)得的比總損耗值，參照 GB/T 13789-2008 附錄 C 中指定的關(guān)系式 C.2a 向方圈法數(shù)據(jù)轉(zhuǎn)換，兩種檢測(cè)方法所得比總損耗轉(zhuǎn)換因子δP 的擬合關(guān)系可參照 GB/T 13789-2008 附錄 C 關(guān)系式 C.3a，式中擬合有效區(qū)間為1.0T～1.8T，且該轉(zhuǎn)換關(guān)系只適用于 0.23mm 及以上厚度規(guī)格激光刻痕產(chǎn)品，0.20mm 及以下厚度規(guī)格激光刻痕產(chǎn)品的轉(zhuǎn)換關(guān)系根據(jù)實(shí)際檢測(cè)、河南平頂山同城應(yīng)用對(duì)比實(shí)驗(yàn)結(jié)果進(jìn)行專項(xiàng)規(guī)定。當(dāng)供應(yīng)商和用戶協(xié)商對(duì) P1.5/50 和 P1.5/60有明確要求時(shí)，轉(zhuǎn)換后的 P1.5/50和 P1.5/60應(yīng)符合表 3、河南平頂山同城表 4、河南平頂山同城表 5、河南平頂山同城表 6、河南平頂山同城表 7、河南平頂山同城表 8 和表 9 的規(guī)定。7.1.7 其他測(cè)試條件下，轉(zhuǎn)換系數(shù) Fc 可由供應(yīng)商和用戶協(xié)商確定。7.1.8 當(dāng)需要提供磁化曲線時(shí)，按 GB/T 13789 單片法所測(cè)得數(shù)據(jù)參照 GB/T 13789-2008 附錄 C 關(guān)系式轉(zhuǎn)換。注1：多年來習(xí)慣上采用磁感應(yīng)強(qiáng)度，實(shí)際上愛潑斯坦方圈和單片測(cè)試儀測(cè)量的是磁極化強(qiáng)度。 磁感應(yīng)強(qiáng)度與磁極化強(qiáng)度的關(guān)系：J＝B-μ0H ，H＝800A/m條件下，B和J的差異約為0.001T

電工鋼硅鋼片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