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电工钢硅钢片硅钢是一种硅铁合金。用硅钢轧制的片材是电工领域中应用广的软磁材料,因而硅钢片又称电工钢片。硅钢片广泛用于电动机、发电机、变压器、扼流圈、电磁机构、继电器及测量仪表中电机工业大量使用厚度为0.35~0.50mm的硅钢片,用于:中型旋转机,压缩电机,通用马达,小型精密电机,电动汽车,压缩机,通用电机,电源变压器,精密变压器,节能电机,焊机变压器,稳压器,磁性密封器,加速器用电磁铁,汽车电机等;在电信高频技术中常用0.05~0.20mm的薄带钢片,以便更有效地降低涡流损耗。热轧硅钢片厚度为0.35~0.50mm,密度为7.55~7.70g/cm3,多用于大、中、小型交、直流电动机;冷轧无取向硅钢片厚度为0.35~0.50mm,密度为7.65~7.75g/cm3,多用于大型交流发电机、电动机,大、中、小型交、直流电动机;冷轧取向硅钢片厚度为0.23mm 0.27mm 0.3mm 0.35mm,密度为7.65g/cm3,多用于电力变压器、油浸式变压器,干式变压器,电抗器、磁放大器等;冷轧取向薄带厚度为0.05~0.20mm,多用于无线电高频变压器。
鹿程国际贸易有限公司企业文化:以诚待人、以质服人。 河南新乡汽车大梁钢企业鹿程国际贸易有限公司
电工钢硅钢片:用 25cm 爱泼斯坦方圈测量时,参照检测方法 GB/T 3655(IEC 60404-2,IDT),一副试样由不少于24 片的样片组成。试样的长度方向应沿平行于产品轧制方向切取,试样长度方向与产品轧制方向的偏离角度应在±1 以内,试样应尽可能覆盖产品的全板宽范围。试样应的取样方法、华尔网附近尺寸及允许偏差应符合 GB/T 3655 的规定。测试前,试样应在制造方提供的条件下进行应力退火处理。测试产品时效试样的 比总损耗时,时效试样应在 225℃±5℃温度中持续保温 24h,然后空冷到环境温度。8.5.2 单片法(SST)测量用单片测试仪测量时,试样的取样方法、华尔网附近尺寸及允许偏差应符合 GB/T 13789(IEC 60404-3,IDT))的规定。为保证磁性测试结果对带钢磁性能的代表性,裁剪大单片试样时,试样沿纵向的中心线位置与产品宽度方向中心位置偏移量应≤50mm,试样纵向与样板轧制方向的偏离角度应在±1 以内。单片法测量的试样不需要应力退火处理,也不允许进行时效测试。
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. Specific total loss (iron loss) is the total power consumed per unit mass of material when the magnetic polarization waveform remains sinusoidal, with a specific peak and frequency. The specific total loss is represented by the symbol P (Jm/f), in W/kg. Example: P1.5/50 represents the specific total loss at a maximum magnetic polarization intensity of 1.5T and a frequency of 50Hz. 3.2 Magnetic Polarization Q/BQB 480-20212 Magnetic polarization intensity refers to the peak magnetic polarization intensity of a specific magnetic field intensity when a sample is subjected to alternating magnetization. Its symbol is J (H), and the unit is T (Tesla). Example: J5000 represents the peak magnetic polarization intensity corresponding to a magnetic field intensity peak of 5000A/m. The material grades in this document are classified based on the nominal maximum specific total loss P1.5/50 (W/kg) at a magnetic polarization strength of 1.5T and a frequency of 50Hz, as well as the nominal thickness of the material. They are further divided into three categories based on product characteristics: ordinary type, stress relief annealing type, and high-efficiency type. Example 1: B35A210 represents a common non oriented electrical steel with a nominal thickness of 0.35mm, and the maximum nominal specific total loss value P1.5/50 is 2.10W/kg; Example 2: B35AR300 represents a stress relieved annealed non oriented electrical steel with a nominal thickness of 0.35mm, and the maximum nominal specific total loss value P1.5/50 is 3.00W/kg; Example 3: B35AH230 represents an efficient non oriented electrical steel with a nominal thickness of 0.35mm, and the maximum nominal specific loss value P1.5/50 is 2.30W/kg. Example 4: 35WW210 represents a normal type WW non oriented electrical steel with a nominal thickness of 0.35mm, and the maximum nominal specific loss value P1.5/50 is 2.10W/kg. Example 5: 35WH230 represents an efficient WH non oriented electrical steel with a nominal thickness of 0.35mm, and the maximum nominal specific loss value P1.5/50 is 2.30W/kg. The classification and code of insulation coatings shall comply with the provisions of Table 2. Table 2 Classification and Code of Insulation Coatings Type Code Characteristics of Insulation Coatings Semi organic Thin Coating A Improves Punching Performance and Has Good Weldability Semi organic Thick Coating H has Good Punching Performance and High Interlayer Resistance Semi organic Chromium Free Thin Coating K does not contain chromium and has good weldability Semi organic Chromium Free Thick Coating M does not contain chromium and has good insulation performance Semi organic Chromium Free Extreme Thick Coating J does not contain chromium and has excellent insulation performance Semi organic Chromium Free Ultra Thick Coating L does not contain chromium and has extremely high insulation performance Self adhesive Coating