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(dòng)機(jī)、發(fā)電機(jī)、變壓器、扼流圈、電磁機(jī)構(gòu)、繼電器及測(cè)量?jī)x表中電機(jī)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(jī)，壓縮電機(jī)，通用馬達(dá)，小型精密電機(jī)，電動(dòng)汽車，壓縮機(jī)，通用電機(jī)，電源變壓器，精密變壓器，節(jié)能電機(jī)，焊機(jī)變壓器，穩(wěn)壓器，磁性密封器，加速器用電磁鐵，汽車電機(jī)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(dòng)機(jī)；冷軋無(wú)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(jī)、電動(dòng)機(jī)，大、中、小型交、直流電動(dòng)機(jī)；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(wú)線電高頻變壓器。

電工鋼硅鋼片：本文件規(guī)定了公稱厚度為 0.15mm、廣東云浮0.20mm、廣東云浮當(dāng)?shù)?.25mm、廣東云浮當(dāng)?shù)?.27mm、廣東云浮當(dāng)?shù)?.30mm 和 0.35mm 全工藝?yán)滠堉蓄l無(wú)取向電工鋼帶的術(shù)語(yǔ)和定義、廣東云浮當(dāng)?shù)胤诸惡痛?hào)、廣東云浮當(dāng)?shù)匾话阋?、廣東云浮當(dāng)?shù)丶夹g(shù)要求、廣東云浮當(dāng)?shù)貦z驗(yàn)和試驗(yàn)、廣東云浮當(dāng)?shù)匕b、廣東云浮當(dāng)?shù)貥?biāo)志及檢驗(yàn)文件等要求。本文件適用于寶山鋼鐵股份有限公司生產(chǎn)的、廣東云浮當(dāng)?shù)赜糜陬l率在 100Hz-10000Hz 磁路結(jié)構(gòu)的、廣東云浮當(dāng)?shù)匾越K退火狀態(tài)交貨的全工藝?yán)滠垷o(wú)取向電工鋼帶產(chǎn)品(以下簡(jiǎn)稱產(chǎn)品)。2 規(guī)范性引用文件下列文件中的內(nèi)容通過(guò)文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文件，僅該日期對(duì)應(yīng)的版本適用于本文件；不注日期的引用文件，其 版本（包括所有的修改單）適用于本文件。GB/T 228.1-2010 金屬材料拉伸試驗(yàn) 第 1 部分：室溫實(shí)驗(yàn)法GB/T 2521.1 全工藝?yán)滠堧姽や?第 1 部分:晶粒無(wú)取向鋼帶(片)GB/T 2522GB/T 2791電工鋼片（帶）表面絕緣電阻、廣東云浮當(dāng)?shù)赝繉痈街詼y(cè)試方法粘結(jié)劑 T 剝離強(qiáng)度試驗(yàn)方法 撓性材料對(duì)撓性材料GB/T 2900.60 電工術(shù)語(yǔ) 電磁學(xué)GB/T 3655 用愛(ài)潑斯坦方圈測(cè)量電工鋼片(帶)磁性能的方法GB/T 4340.1 金屬材料維氏硬度試驗(yàn) 第 1 部分：試驗(yàn)方法GB/T 8170 數(shù)值修約規(guī)則與極限數(shù)值的表示和判定GB/T 9637GB/T 10129電工術(shù)語(yǔ)磁性 材料與元件電工鋼片（帶）中頻磁性能測(cè)量方法GB/T 17505 鋼及鋼產(chǎn)品交貨一般技術(shù)要求GB/T 18253 鋼及鋼產(chǎn)品檢驗(yàn)文件的類型GB/T 19289 電工鋼片（帶）的密度、廣東云浮當(dāng)?shù)仉娮杪屎童B裝系數(shù)的測(cè)量方法YB/T 4292 電工鋼帶（片）幾何特性測(cè)試方法Q/BQB 400-2020 冷軋產(chǎn)品的包裝、廣東云浮當(dāng)?shù)貥?biāo)志及檢驗(yàn)文件IEC 60404-8-8 Specifications for individual materials –Thin electricalsteel strip and sheet for use at medium frequencies