上海新能源电工钢卷材服务为先

电工钢硅钢片 优异的电磁性能 的设备、山东青岛同城先进的制造工艺以及严格的管理确保了宝钢取 向电工钢电磁性能的优良、山东青岛同城稳定。 出色的加工性能 高精度尺寸与优异的力学性能便于用户分条、山东青岛同城剪切与叠片。 卓越的尺寸精度 宝钢先进的设备和制造技术，确保取向电工钢良好的板形,表 面平滑、山东青岛同城厚度均匀、山东青岛同城同板差小、山东青岛同城叠片系数高。 优良的表面涂层性能 宝钢取向电工钢具有均匀的表面涂层，良好的附着性，防止 加工时的涂层脱落；层间绝缘性能良好。 更多的宽度选择 宝钢取向电工钢的板宽900-1200mm，用户可以从中选择，提 高材料的利用率。

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

电工钢硅钢片叠装系数产品的叠装系数应符合表 3、山东青岛附近表 4 的规定。供方如能保证，可不进行该试验。仲裁时，适用于无绝缘涂层状态。7.4.3 弯曲次数弯曲次数是指用肉眼在基板上观测到 次出现贯穿试样厚度的裂纹(或听到产生裂纹的声音)前的 反复弯曲次数，它表示材料的延展性。弯曲次数应符合表 3、山东青岛附近表 4 的规定。供方如能保证，可不进行该试验。7.4.4 内应力产品应尽可能量避免出现内应力。内应力的检验不适用于宽度小于或等于150mm 的钢带（纵切分条后的钢带）。缝隙测量值应不超过 2mm。供方如能保证，可不进行该试验。8 检验和试验8.1 检验批次产品应按批验收，每个检验批应由不大于20吨的同牌号、山东青岛附近同规格、山东青岛附近同热处理状态、山东青岛附近同绝缘涂层的钢带组成。对于重量大于20吨的钢带，每个钢卷组成一个检验批。