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以下是:取向硅钢条料 0.3 B30P105-LM厂家直供的图文介绍
电工钢硅钢片当磁极化强度随时间按正弦规律变化，其峰值为某一标定值，变化频率为某一标定频率时，单位长度电工钢片（带）沿磁化方向上发生磁致伸缩所引起的表面振动声压水平为 A 计权磁致伸缩速度水平。3.5 表面绝缘电阻 surface insulation resistance在规定条件下所测得的直流电阻，即产品在加直流电压，经过一定时间极化过程后，流过带钢（片）表面的泄漏电流对应的电阻，其符号为 C，单位为Ω·mm2/面或Ω·cm2/面。3.6 层间电阻 inter-lamination resistance产品叠片间，即上、西藏林芝本地下两个表面的绝缘电阻，称为层间电阻，其符号为 RA，理论上是表面绝缘电阻的 2 倍，单位为Ω·mm2/片或Ω·cm2/片。4 分类本文件的材料的等级是根据磁极化强度在1.7T、西藏林芝本地频率在50Hz下的 比总损耗名义值P1.7/50(W/kg)、西藏林芝材料公称厚度进行牌号分类，并按产品特性和特殊用途，细分为普通型、西藏林芝高磁极化强度型、西藏林芝磁畴细化型、西藏林芝耐热磁畴细化型、西藏林芝低噪声型、西藏林芝配电变压器专用型、西藏林芝特高压变压器专用型、西藏林芝无涂层型八类。
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
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电工钢硅钢片根据生产方式可分为热轧电工钢和冷轧电工钢。热轧硅钢片因其性能落后近年已经逐步淘汰。根据晶体取向聚集程度将硅钢分为无取向和取向是为广泛接受的方法。冷轧无取向硅钢是指0.5％~4.0％(Si＋Al)的合金，冷轧至0.65mm、西藏林芝同城0.5mm和0.35mm后经退火涂层后制成。相比取向硅钢，其晶粒织构类型较为漫散，各个方向上具有较为均匀的磁性能，而且磁各向异性较低，主要用作各类型电机和发电机的铁芯叠片。冷轧产品厚度精度，尺寸公差等级，表面光滑度都达到较高水平，从而提高了产品叠片系数和材料的磁性能。冷轧无取向硅钢生产工艺流程图如图1所示。
