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

電工鋼硅鋼片硅鋼是一種硅鐵合金。用硅鋼軋制的片材是電工領域中應用廣的軟磁材料，因而硅鋼片又稱電工鋼片。硅鋼片廣泛用于電動機、發(fā)電機、變壓器、扼流圈、電磁機構、繼電器及測量儀表中電機工業(yè)大量使用厚度為0.35～0.50mm的硅鋼片,用于：中型旋轉機，壓縮電機，通用馬達，小型精密電機，電動汽車，壓縮機，通用電機，電源變壓器，精密變壓器，節(jié)能電機，焊機變壓器，穩(wěn)壓器，磁性密封器，加速器用電磁鐵，汽車電機等；在電信高頻技術中常用0.05~0.20mm的薄帶鋼片,以便更有效地降低渦流損耗。熱軋硅鋼片厚度為0.35～0.50mm，密度為7.55～7.70g/cm3,多用于大、中、小型交、直流電動機；冷軋無取向硅鋼片厚度為0.35～0.50mm，密度為7.65～7.75g/cm3，多用于大型交流發(fā)電機、電動機，大、中、小型交、直流電動機；冷軋取向硅鋼片厚度為0.23mm 0.27mm 0.3mm 0.35mm，密度為7.65g/cm3,多用于電力變壓器、油浸式變壓器，干式變壓器，電抗器、磁放大器等；冷軋取向薄帶厚度為0.05～0.20mm，多用于無線電高頻變壓器。

電工鋼硅鋼片硅鋼以鐵芯損耗(簡稱鐵損)和磁感應強度(簡稱磁感)作為產(chǎn)品磁性保證值。硅鋼鐵損低可節(jié)省大量電能，延長電機和變壓器工作運轉時間和簡化冷卻系統(tǒng)。由于硅鋼鐵損造成的電量損失占全年發(fā)電量的2.5％～4.5％，其中變壓器鐵損約占50％，1～100kW小型電機約占30％，日光燈鎮(zhèn)流器約占15％。硅鋼磁感高，鐵芯的激磁電流降低，也節(jié)省電能。硅鋼磁感高可使設計的 磁感(Bm)高、寧夏銀川本地鐵芯體積小、寧夏銀川本地重量輕，節(jié)省硅鋼、寧夏銀川本地導線、寧夏銀川本地絕緣材料和結構材料等，既使電機和變壓器損耗和制造成本降低，又便于組裝和運輸。由帶齒圓形沖片疊成鐵芯的電機在運轉狀態(tài)下工作。要求硅鋼板為磁各向同性，用無取向硅鋼制造。由條片疊成鐵芯或由條帶卷繞成鐵芯的變壓器在靜止狀態(tài)下工作，用磁各向異性大的冷軋取向硅鋼制造。此外，要求硅鋼具有好的沖剪性，表面光滑平整和厚度均勻，好的絕緣膜和磁時效小。