M400-50A 0.5*1250高频电工钢

电工钢硅钢片硅钢按Si质量分数分类分为Si＜0.5％的电工钢和0.5~4.5％Si的硅钢两类，两者通称为电工钢板。前者在制造电磁性能要求不高的民用小型电器领域有着广泛的需求，此类硅钢片的特点在于硅含量明显低于常规电工钢，制备工艺流程简单，成本较低，与普碳钢类似。后者包含的种类、甘肃张掖附近牌号极为复杂。高硅钢是指4.5％~6.7％Si的Si-Fe合金，具有在高频下铁损明显降低、甘肃张掖附近 磁导率高、甘肃张掖附近矫顽力低、甘肃张掖附近磁性能极为优异的特点，主要用来制造高频电机、甘肃张掖附近高频变压器、甘肃张掖附近扼流线圈和高频磁屏蔽等。但由于Si含量过高，室温条件下塑性极差，无法轧制成形。6.5％Si因为其独特的磁性能而自成体系，目前仅有少量通过渗硅工艺制备的无取向6.5％Si-Fe合金材料可以成卷供应，更具性能优势的取向6.5％Si-Fe合金制备则更为困难。

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

电工钢硅钢片：比总损耗(铁损) specific total loss (iron loss)比总损耗是在磁极化波形保持正弦，其峰值和频率为特定值时，单位质量材料所消耗的总功率，比总损耗用符号 P(Jm/f)表示，单位为 W/kg。例：P1.5/50表示在 磁极化强度为 1.5T、甘肃张掖当地频率为 50Hz 时的比总损耗。3.2 磁极化强度 magnetic polarizationQ/BQB 480－20212磁极化强度是指试样受交变磁化时，特定磁场强度峰值的磁极化强度峰值，其符号为J(H)，单位为 T(特斯拉)。例：J5000表示对应于磁场强度峰值为 5000A/m 下的磁极化强度峰值。4 分类本文件的材料的等级是根据磁极化强度在1.5T、甘肃张掖当地频率在50Hz下的 比总损耗名义值P1.5/50(W/kg)、甘肃张掖当地材料公称厚度进行牌号分类，并按产品特性细分为普通型、甘肃张掖当地应力退火型和型三类。