電工鋼硅鋼片 電工鋼板通常是以鐵芯損耗和磁感應(yīng)強度作為產(chǎn)品磁性保證值[1] [2] 。對電工鋼板性能的要求如下：鐵芯損耗（PT）低鐵芯損耗是指鐵芯在≥50Hz交變磁場下磁化時所消耗的無效電能，簡稱鐵損，也稱交變損耗，其單位為W/kg。這種由于磁通變化受到各種阻礙而消耗的無效電能，通過鐵芯發(fā)熱既損失掉電能，又引起電機和變壓器的溫升。電工鋼的鐵損（PT）包括磁滯損耗、成都蒲江本地渦流損耗（Pe）和反常損耗（Pa）三部分。電工鋼板鐵損低，既可節(jié)省大量電能，又可延長電機和變壓器工作運轉(zhuǎn)時間，并簡化冷卻裝置。由于電工鋼板的鐵損所造成的電量損失占各國全年發(fā)電量的2.5％~4.5％，因此各國生產(chǎn)電工鋼板總是千方百計設(shè)法降低鐵損，并以鐵損作為考核產(chǎn)品磁性的重要指標(biāo)，按產(chǎn)品的鐵損值作為劃分產(chǎn)品牌號的依據(jù)。冷軋取向電工鋼：冷軋取向電工鋼是電工鋼中的高端產(chǎn)品，與冷軋無取向電工鋼相比，磁性具有強烈的方向性；在易磁化的軋制方向上具有優(yōu)越的高磁導(dǎo)率與低損耗特性。取向鋼帶在軋制方向的鐵損僅為橫向的1/3，磁導(dǎo)率之比為6：1。用途：冷軋取向硅鋼帶主要的用途是用于變壓器制造。

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(lǐng)域中應(yīng)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(gòu)、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(zhuǎn)機，壓縮電機，通用馬達(dá)，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(shù)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。