電工鋼硅鋼片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

電工鋼硅鋼片電工鋼亦稱硅鋼片，是電力、四川涼山本地電子和軍事工業(yè)不可缺少的金屬材料，亦是產(chǎn)量 的功能性材料，主要用作各種電機(jī)、四川涼山本地發(fā)電機(jī)和變壓器的鐵芯。（電工鋼簡介）既然是功能性材料，其性能檢測也是圍繞“功能”展開，這些指標(biāo)在貿(mào)易和加工過程中會被經(jīng)常提到，有一個簡略的認(rèn)識能幫助大家更好地開展工作。電工鋼性能檢測主要分為以下幾個方面：磁性檢驗(yàn)、四川涼山本地疊裝系數(shù)檢驗(yàn)、四川涼山本地涂層附著性檢驗(yàn)、四川涼山本地反復(fù)彎曲檢驗(yàn)、四川涼山本地尺寸形狀表面檢驗(yàn)和常規(guī)力學(xué)性能檢驗(yàn)等電工鋼除上表品種類別外，還有一些特殊用途的電工鋼板，如0.15和0.20mm厚3％Si冷軋無取向硅鋼薄帶和0.025、四川涼山本地0.05及0.1mm厚3％Si冷軋取向硅鋼薄帶，用作中、四川涼山本地高頻電機(jī)和變壓器以及脈沖變壓器等；繼電器和電力開關(guān)用的0.7mm厚3％Si高強(qiáng)度冷軋無取向硅鋼板；新型高轉(zhuǎn)速電機(jī)轉(zhuǎn)子用的高強(qiáng)度冷軋電工鋼板；醫(yī)用核磁共振斷層掃描儀等磁屏蔽和高能加速器電磁鐵用的低碳電工鋼熱軋厚板和冷軋板；高頻電機(jī)和變壓器以及磁屏蔽用的4.5％~6.5％Si高硅鋼板等。

電工鋼硅鋼片：比總損耗(鐵損)specific total loss (iron loss)比總損耗是指在磁極化波形保持正弦，其峰值和頻率為特定值時，單位質(zhì)量材料所消耗的總功率，比總損耗用符號 P(Jm/f)表示，單位為 W/kg。例：P1.0/400表示在 磁極化強(qiáng)度為 1.0T、四川涼山頻率為 400Hz 時的比總損耗。Q/BQB 481－202123.2 磁極化強(qiáng)度 magnetic polarization磁極化強(qiáng)度是指試樣受交變磁化時，特定磁場強(qiáng)度峰值的磁極化強(qiáng)度峰值，其符號為 J(H)，單位為 T(特斯拉)。例：J5000表示對應(yīng)于磁場強(qiáng)度峰值為 5000A/m 下的磁極化強(qiáng)度峰值。4 分類本文件的材料的等級是根據(jù)磁極化強(qiáng)度在1.0T、四川涼山頻率在400Hz下的 比總損耗值P1.0/400、四川涼山材料公稱厚度進(jìn)行牌號分類，并按產(chǎn)品特性細(xì)分為普通型、四川涼山型、四川涼山高強(qiáng)度型、四川涼山高磁感型和高強(qiáng)度型五類。