B50AR500E型电工钢

电工钢硅钢片绝缘涂层取向电工钢产品表面均涂以一层无机绝缘涂层，该涂层具有优异的涂层特性：层间电阻高—层间电阻高，确保良好的层间绝缘性。冲片性能优—涂层与底层紧密结合，具有良好的附着性，可防止加工时涂层脱落。 叠片系数高—表面涂层均匀且薄，具有优异的叠片性能。耐热性能好—涂层能承受800℃退火，且不被损坏。耐蚀性能好—涂层与冷却油、同城绝缘油、同城机械油及氟里昂、同城防冻油等不相容，免受侵蚀。电工钢主要分为晶粒取向电工钢和晶粒无取向电工钢两大

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

电工钢硅钢片：取向电工钢产品表面涂层种类及特征绝缘涂层种类 代号 特征无机涂层 S涂层为磷酸盐和二氧化硅为主的无机成分混合物。该涂层具有较高的耐热性，在干的氮气或者干的氮氢混合保护气氛中可以承受 850℃应力退火。对绝缘油、同城清漆、同城机械油、同城制冷气体等有高耐腐性。无 Cr 环保涂层 H 涂层成分中不含 Cr 元素无涂层 — 表面没有玻璃膜底层和绝缘涂层，适用于直接轧制晶粒取向电工钢极薄带。6 一般要求6.1 生产工艺产品的生产工艺和化学成分由制造方决定。