坦克电机用30RK105

电工钢硅钢片：比总损耗(铁损)specific total loss (iron loss)比总损耗是指磁极化强度按正弦变化，其峰值和频率为特定值时，单位质量材料所吸收的总功率，比总损耗用符号 P (Jm/f)表示，单位为 W/kg（或 W/lb）。例：P1.7/50表示在磁极化强度在 1.7T、河南当地频率在 50Hz 下测得的单位 kg（或 lb）试样的比总损耗；P1.7/60表示在磁极化强度在 1.7T、河南当地频率在 60Hz 下测得的单位 kg（或 lb）试样的比总损耗。3.2 磁极化强度(磁感应强度)magnetic polarization (magnetic induction)磁极化强度是指试样受交变磁场磁化时，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：J800表示对应于磁场强度 H 为 800A/m（用峰值表示）下的磁极化强度。3.3 比视在功率 specific apparent power对于设定的磁极化强度和频率值，磁化单位质量的铁芯所消耗的交流电源总功率为比视在功率，其符号为 Ss，单位为 VA/kg。例：Ss1.7/50表示磁极化强度在 1.7T、河南当地频率在 50Hz 下测得的单位 kg 试样的比视在功率。3.4 A 计权磁致伸缩速度水平 A-weighted magnetostriction velocity level,LVA 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。

电工钢硅钢片In addition to the types 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, used for medium and high-frequency motors, transformers, and pulse transformers； 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 [1] [2]. The requirements for the performance of electrical steel plates are as follows:Low core loss (PT)Iron core loss refers to the ineffective electrical energy consumed by an iron core when magnetized in an alternating magnetic field of ≥ 50Hz, abbreviated as iron loss, also known as alternating loss, and its unit is W/kg. The ineffective electrical energy consumed due to various obstacles caused by magnetic flux changes not only loses electrical energy through the heating of the iron core, but also causes temperature rise of the motor and transformer. The iron loss (PT) of electrical steel includes three parts: hysteresis loss, eddy current loss (Pe), and anomalous loss (Pa). Electrical steel plates have low iron loss, which can save a lot of electricity, prolong the operating time of motors and transformers, and simplify cooling devices. Due to the iron loss of electrical steel plates, which accounts for 2.5％ to 4.5％ of the annual electricity generation in various countries, countries always try their best to reduce iron loss in the production of electrical steel plates, and use iron loss as the most important indicator to assess the magnetic properties of products. The iron loss value of products is used as the basis for classifying product grades. Cold rolled oriented electrical steel: Cold rolled oriented electrical steel is a high-end product in the field of electrical steel. Compared with cold rolled non oriented electrical steel, its magnetism has strong directionality； It has superior high magnetic permeability and low loss characteristics in the direction of easy magnetization rolling. The iron loss of oriented steel strip in the rolling direction is only 1/3 of that in the transverse direction, and the ratio of magnetic permeability is 6:1. Application: The main purpose of cold-rolled oriented silicon steel strip is for transformer manufacturing.Full process cold rolled non oriented silicon steel coating: The surface of the full process cold rolled silicon steel is coated with a semi transparent insulation coating, which has different codes in different standards. Taking Baosteel‘s Q/BQB 480 2014 as an example:

电工钢硅钢片2 供货形式6.2.1 产品以卷供货，简称钢卷。钢卷的重量应符合订货要求，卷重一般3～10 吨，特殊卷重应在订货时协商并在合同中注明。6.2.2 钢卷通常以切边状态交货。用户有特殊要求时，应在订货时协商并在合同中注明。6.2.3 钢卷内径应在 500mm～520mm 范围内，推荐钢卷内径为 508mm。6.2.4 钢卷应由同一宽度的钢带连续、河南附近紧密卷绕，卷的侧面应尽量平直，自重下不塌卷。6.3 交货状态钢带以终退火并两面涂敷绝缘涂层的状态交货。6.4 表面质量6.4.1 钢带表面应光滑清洁，无油脂，无锈渍，无影响使用的缺陷。6.4.2 钢带表面允许存在不影响材料正常使用的在厚度偏差允许范围内的基板缺欠、河南本地绝缘涂层缺欠，如轻微划伤、河南本地色差、河南本地辊印、河南本地斑纹等缺欠。