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电工钢硅钢片:磁性能7.1.1 在 6.3 条件下提供的冷轧取向电工钢的特性应符合表 3、山东济南表 4、山东济南表 5、山东济南表 6、山东济南表 7、山东济南表 8 和表 9的规定,时效试样也应满足这些特性。对带有涂层的产品,绝缘涂层的质量应被计算在内。7.1.2 表 3、山东济南表 4 和表 6 中的普通型、山东济南高磁极化强度型、山东济南耐热刻痕磁畴细化型产品的磁性能应该按 GB/T3655 测试,在测试前,试样应在制造方提供的条件下进行应力退火(通常应力退火温度的范围为 800℃±20℃,退火时间为 2h,退火后随炉冷却);但表 5 中的非耐热磁畴细化法(如激光刻痕)生产的产品磁性能应按照 GB/T 13789 测试,试样在测试前不需要进行应力退火。经供需双方协商,表 3、山东济南表 4 和表 6 中产品的磁性能也可按照 GB/T 13789 测试。7.1.3 表 7、山东济南表 8 和表 9 中各系列产品的磁性能检测方法,按产品类型对照本文件第 7.1.2 条款的规定执行。7.1.4 在磁场强度 H = 800 A/m 条件下测试所得的磁极化强度 J800应符合表 3、山东济南表 4、山东济南表 5、山东济南表 6、山东济南表 7、山东济南表 8 和表 9 的规定,其中,同一产品按 GB/T 13789 方法所测得的磁极化强度值 J800比 GB/T 3655 方法所测得的磁极化强度值偏低。7.1.5 同一产品在磁极化强度 1.7T、山东济南同城频率 50Hz 或 60Hz 条件下,按 GB/T 13789 方法所测得的 50Hz 和60Hz 条件下比总损耗值,参照 IEC 6040-8-7 Edition 5.0 2020-09 中规定的转换系数 Fc=0.925 进行转换,转换后的 P1.7/50和 P1.7/60应符合表 3、山东济南同城表 4、山东济南同城表 5、山东济南同城表 6、山东济南同城表 7、山东济南同城表 8 和表 9 的规定
电工钢硅钢片电工钢板的磁感应强度高,铁芯的激磁电流(也称空载电流)降低,铜损和铁损都下降,可节省电能。当电机和变压器功率不变时,磁感应强度高,设计Bm可提高,铁芯截面积可缩小,这使铁芯体积减小和重量减轻,并节省电工钢板、山东济南导线、山东济南绝缘材料和结构材料用量,可降低电机和变压器的总损耗和制造成本,并且有利于大变压器和大电机的制造、山东济南安装和运输。硅钢性能的要求主要是:1、山东济南铁损低,这是硅钢片质量的重要指标。各国都根据铁损值划分牌号,铁损愈低,牌号愈高。2、山东济南较强磁场下磁感应强度(磁感)高,这使电机和变压器的铁芯体积与重量减小,节约硅钢片、山东济南铜线和绝缘材料等。3、山东济南表面光滑、山东济南平整和厚度均匀,可以提高铁芯的填充系数。4、山东济南冲片性好,对制造微型、山东济南小型电动机更为重要。5、山东济南表面绝缘膜的附着性和焊接性良好,能防蚀和改善冲片性
鹿程国际贸易有限公司自建立以来,一直从事设计、生产制造及销售、安装 山东济南汽车大梁钢的综合性企业,具有二十多年的生产历史,凭借先进的生产工艺、雄厚的技术力量、完善的售后服务,获得了广大 山东济南汽车大梁钢用户的好评及回单。
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