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诚信商家不会出售劣质产品，主营产品 甘肃酒泉汽车大梁钢。公司可接大批量订单直接让利给消费者。品质保障：做工材质均选用优良材料，每道工序都严格准确把控。工艺精良：产品都是厂家生产严格按照标准执行，直供货源物，物美价廉。贴心服务生产、加工、销售、售后一条龙服务，严苛质检和效果测试，确保使用无忧。
电工钢硅钢片：宽度产品的公称宽度 W 范围为 750mm＜W≤1270mm。切边供货的产品母卷宽度允许偏差应为＋00.5mm。用户有特殊要求时，通过协议可以按毛边状态交货，其宽度允许偏差由供需双方通过协议另行约定。7.3.3 镰刀弯产品镰刀弯的检测适用于宽度不小于 150mm 的切边材料，任意 1000mm 长度的产品镰刀弯应不超过0.50mm。供方如能保证，可不进行该试验。7.3.4 不平度和浪高产品不平度的检测适用于宽度不小于 150mm 的材料，其不平度应不超过 1.0％，浪高应不超过 2.5mm。7.3.5 残余曲率根据需方要求，并在合同中注明，宽度不小于 150mm 的产品可检测残余曲率，其测试钢片的底边和支撑板间的距离应不超过 10mm。供方如能保证，可不进行该试验。7.3.6 毛刺高度切边产品的剪切毛刺高度应不超过 0.020mm。
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
