电工钢硅钢片绝缘涂层取向电工钢产品表面均涂以一层无机绝缘涂层，该涂层具有优异的涂层特性：层间电阻高—层间电阻高，确保良好的层间绝缘性。冲片性能优—涂层与底层紧密结合，具有良好的附着性，可防止加工时涂层脱落。 叠片系数高—表面涂层均匀且薄，具有优异的叠片性能。耐热性能好—涂层能承受800℃退火，且不被损坏。耐蚀性能好—涂层与冷却油、安徽黄山同城绝缘油、安徽黄山同城机械油及氟里昂、安徽黄山同城防冻油等不相容，免受侵蚀。电工钢主要分为晶粒取向电工钢和晶粒无取向电工钢两大

电工钢硅钢片：超薄系列:B15AHT1000、安徽黄山附近B15AHT1200、安徽黄山附近B15AT1000、安徽黄山附近B15AT1200B15AT1500、安徽黄山附近B15AT1550、安徽黄山附近B20AHT1000、安徽黄山附近B20AHT1200、安徽黄山附近B20AT1000、安徽黄山附近 B20AT1200、安徽黄山附近B20AT1500、安徽黄山附近20WTG1200、安徽黄山附近20WTG1500 20WTG1550 B25AHV1200 B25AHV1300、安徽黄山附近B27AHV1400、安徽黄山附近B27AV1400、安徽黄山附近B30AHV1500 B30AHV1400、安徽黄山附近B35AV1700 B35AV1800 B35A1900能系列:B35AH300、安徽黄山附近B50AH300、安徽黄山附近50AH470、安徽黄山附近50AH600、安徽黄山附近50AH800、安徽黄山附近 B50AH470、安徽黄山附近B50AH600、安徽黄山附近B50AH800、安徽黄山附近B50AR300、安徽黄山附近B50AR600、安徽黄山附近 B50AR500、安徽黄山附近B50AR350、安徽黄山附近B20AT15000.35系列:B35A200、安徽黄山附近B35A210、安徽黄山附近B35A230、安徽黄山附近B35A250 B35A270、安徽黄山附近B35A300、安徽黄山附近B35A360、安徽黄山附近B35A440、安徽黄山附近B35A550、安徽黄山附近B35AH300、安徽黄山附近B35AR300 B35AY-10.5系列:B50A250、安徽黄山本地B50A270、安徽黄山本地B50A290 B50A310 B50A350 B50A400、安徽黄山本地B50A470、安徽黄山本地B50A600、安徽黄山本地B50A700、安徽黄山本地B50A800、安徽黄山本地B50A1000 B50A13000.65系列:B65A470、安徽黄山本地B65A530、安徽黄山本地B50A600B65A700、安徽黄山本地B65A800 B65A1000、安徽黄山本地B65A1300超厚系列:70WK340、安徽黄山本地75WK400、安徽黄山本地80WK420、安徽黄山本地85WK450、安徽黄山本地10W800 WFC-100A、安徽黄山本地 硅钢片性能： A铁损低。质量的重要指标，各国都以铁损值划分牌号，铁损越低，牌号越高，质量也高。B、安徽黄山本地磁感应强度高。在相同磁场下能获得高磁感的硅钢片，用它制造的电机或变压器铁芯的体积和重量较小，相对而言可节省硅钢片、安徽黄山本地铜线和绝缘材料等。C、安徽黄山本地叠装系数高。硅钢片表面光滑，平整和厚度均匀，制造铁芯的叠装系数提高。D、安徽黄山本地冲片性好。对制造小型、安徽黄山本地微型电机铁芯，这点更重要。E、安徽黄山本地表面对绝缘膜的附着性和焊接性好。

电工钢硅钢片Intro of iron core of automobile driving motor。At present, the motor technology of high-speed punching of stator and rotor iron core at home and abroad has developed rapidly. With the development of stamping equipment, new equipment with high quality, high efficiency and high precision has been provided for the production of motor punching pieces of high-speed punching of stator and rotor iron core at home and abroad, which has brought the motor punching process technology. Therefore, the design technology of new technology and equipment suitable for it has become a new research topic. The simultaneous separation of stator punching groove and stator punching groove of motor high-speed punching stator rotor iron core the simultaneous cutting of air gap between rotor punching and rotor punching groove is a new technological scheme applied to high-speed punching machine. This scheme has been widely used in foreign countries and has just begun research and application in domestic motor industry. Therefore, some discussions are made to realize the design technology of this technology according to the required technological equipment.The influence of motor high-speed punching of stator and rotor iron core: the influence of motor punching process technology of motor high-speed punching of stator and rotor iron core in new product development the traditional process of motor punching in our country is two categories: double punching and single punching, which are analyzed as follows:1) the process scheme of double punching groove: this scheme has good groove shape and uniformity, few processes and few tooling, but the tooling is complex and requires high precision, good equipment conditions, long tooling manufacturing cycle and Cheng Bengao, which is only suitable for mass production and is not conducive to new product development and small batch trial production.2) single-type punching process scheme: this scheme has poor groove shape, many processes, many tooling, many equipments, simple tooling, unstable quality, long production cycle and Cheng Bengao, and is only suitable for medium and small batch production.Requirements for high-speed punching of stator and rotor iron core of motor: 1. Positioning accuracy requirements. In this technological scheme, the two composite processes of punching groove separation and punching groove cutting air gap require the same positioning Benchmark, ensuring that the concentricity of the groove shape of the stator and rotor, the outer circular dove tail groove and shaft hole is not more than 0.02mm, the positioning of the center hole meets the technical requirements of concentricity, and the joint positioning of the small side hole and the center hole meets the requirements of circumferential orientation. 2. Precision requirements of composite process. Punching and groove separation compound process: This process has Groove-shaped convex mold and incision convex mold to complete the progressive blanking process. This process first punches and then cuts to separate the fixed and rotor punching pieces. The Two convex molds act synchronously on the same center track, and the central included angle between the two convex molds is one and a half times the central included angle of the groove. This process equipment is applied to high-speed punching machines, the groove-shaped indexing accuracy is guaranteed by the CAM stepping mechanism on the equipment；Electric vehicle is an economical and clean green vehicle based on electric drive,Environment and other aspects have ＊ competitiveness, and can conveniently use modern control technology to realize its electromechanical integration, with broad development prospects.The motor drive system of the iron core of the automobile drive motor is the power source of the electric vehicle, and is the main body and internal basis for determining various performance indexes of the automobile operation. At present, electric vehicle motors mainly include DC motors, induction motors, permanent magnet brushless motors and switched reluctance motors.Automobile drive motor iron core permanent magnet brushless motor can be divided into two categories: one is permanent magnet synchronous motor with sine wave current,The other is the BLDC motor with rectangular pulse wave current.Two kinds of motors, the rotor is magnet, the motor rotor does not need brush and excitation winding, through stator winding commutation to generate rotating torque. Because the rotor has no excitation winding, no copper consumption, small magnetic flux and very small iron consumption at low load, therefore, the permanent magnet brushless motor has a high "Power/mass" ratio and can run at high speed. At the same time, it is easy to cool down because there is no abrasion of the rotor and the stator winding is the main heat source.The characteristics of the iron core of the automobile driving motor； The permanent magnet brushless motor of the iron core of the automobile driving motor has high reliability and high output power. Compared with other motors with the same rotating speed, it has the characteristics of small volume, light weight, easy maintenance, high efficiency, high power factor, etc. The rotor has small electromagnetic time constant and good dynamic characteristics of the motor. Through adjustment and conduction angle, constant power operation can be realized, and the efficiency of the motor can also be optimized by optimizing control angle, thus obtaining wider constant power operation area and higher efficiency.Overview of motor high speed punching stator and rotor iron core