供应B30APV1500

电工钢硅钢片硅钢按Si质量分数分类分为Si＜0.5％的电工钢和0.5~4.5％Si的硅钢两类，两者通称为电工钢板。前者在制造电磁性能要求不高的民用小型电器领域有着广泛的需求，此类硅钢片的特点在于硅含量明显低于常规电工钢，制备工艺流程简单，成本较低，与普碳钢类似。后者包含的种类、附近牌号极为复杂。高硅钢是指4.5％~6.7％Si的Si-Fe合金，具有在高频下铁损明显降低、附近 磁导率高、附近矫顽力低、附近磁性能极为优异的特点，主要用来制造高频电机、附近高频变压器、附近扼流线圈和高频磁屏蔽等。但由于Si含量过高，室温条件下塑性极差，无法轧制成形。6.5％Si因为其独特的磁性能而自成体系，目前仅有少量通过渗硅工艺制备的无取向6.5％Si-Fe合金材料可以成卷供应，更具性能优势的取向6.5％Si-Fe合金制备则更为困难。

电工钢硅钢片：比总损耗(铁损)specific total loss (iron loss)比总损耗是指磁极化强度按正弦变化，其峰值和频率为特定值时，单位质量材料所吸收的总功率，比总损耗用符号 P (Jm/f)表示，单位为 W/kg（或 W/lb）。例：P1.7/50表示在磁极化强度在 1.7T、当地频率在 50Hz 下测得的单位 kg（或 lb）试样的比总损耗；P1.7/60表示在磁极化强度在 1.7T、当地频率在 60Hz 下测得的单位 kg（或 lb）试样的比总损耗。3.2 磁极化强度(磁感应强度)magnetic polarization (magnetic induction)磁极化强度是指试样受交变磁场磁化时，特定磁场强度峰值的磁极化强度峰值，其符号为 J(H)，单位为 T(特斯拉)。例：J800表示对应于磁场强度 H 为 800A/m（用峰值表示）下的磁极化强度。3.3 比视在功率 specific apparent power对于设定的磁极化强度和频率值，磁化单位质量的铁芯所消耗的交流电源总功率为比视在功率，其符号为 Ss，单位为 VA/kg。例：Ss1.7/50表示磁极化强度在 1.7T、当地频率在 50Hz 下测得的单位 kg 试样的比视在功率。3.4 A 计权磁致伸缩速度水平 A-weighted magnetostriction velocity level,LVA 当磁极化强度随时间按正弦规律变化，其峰值为某一标定值，变化频率为某一标定频率时，单位长度电工钢片（带）沿磁化方向上发生磁致伸缩所引起的表面振动声压水平为 A 计权磁致伸缩速度水平。

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. 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