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

電工鋼硅鋼片本文件規(guī)定了公稱厚度為 0.18mm、香港本地0.20mm、香港本地0.23mm、香港本地0.27mm、香港本地0.30mm 和 0.35mm 全工藝冷軋取向電工鋼帶的定義、香港本地分類和代號、香港本地尺寸、香港本地外形、香港本地重量、香港本地磁性能、香港本地檢驗和試驗、香港本地包裝、香港本地標志及質(zhì)量證明書等要求。本文件適用于寶山鋼鐵股份有限公司生產(chǎn)的以終退火狀態(tài)交貨的全工藝冷軋取向電工鋼帶（以下簡稱產(chǎn)品）。2 規(guī)范性引用文件下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文件，僅該日期對應(yīng)的版本適用于本文件；不注日期的引用文件，其 版本（包括所有的修改單）適用于本文件。GB/T 228.1 金屬材料拉伸試驗 部分：室溫實驗法GB/T 247 鋼板和鋼帶包裝、香港本地標志及質(zhì)量證明書的一般規(guī)定GB/T 2521.2 全工藝冷軋電工鋼 第 2 部分:晶粒取向鋼帶(片)GB/T 2522 電工鋼片（帶）表面絕緣電阻、香港本地涂層附著性測試方法GB/T 2900.60 電工術(shù)語 電磁學(xué)GB/T 3655 用愛潑斯坦方圈測量電工鋼片(帶)磁性能的方法GB/T 4340.1 金屬材料維氏硬度試驗 部分：試驗方法GB/T 8170 數(shù)值修約規(guī)則與極限數(shù)值的表示和判定GB/T 9637 電工術(shù)語磁性 材料與元件GB/T 13789 用單片測試儀測量電工鋼片(帶)磁性能測量方法GB/T 17505 鋼及鋼產(chǎn)品 交貨一般技術(shù)要求GB/T 18253 鋼及鋼產(chǎn)品檢驗文件的類型GB/T 19289 電工鋼片（帶）的密度、香港本地電阻率和疊裝系數(shù)的測量方法YB/T 4292 電工鋼帶（片）幾何特性測試方法Q/BQB 400 冷軋產(chǎn)品的包裝、香港本地標志及檢驗文件IEC 60404-8-7Magnetic materialsSpecifications for individual materials – Cold-rolled grain-orientedelectrical steel strip and sheet delivered in the fully-processed stateIEC/TR 62581-2010 Methods of measurement of the magnetostriction characteristics by meansof single sheet and Epstein test specimens3 術(shù)語和定義GB/T 2521.2、香港本地GB/T 2900.60、香港本地GB/T 9637 和 YB/T 4292 界定的以及下列術(shù)語適用于本文件。

電工鋼硅鋼片應(yīng)力退火電工鋼在剪切、香港同城沖片和彎曲加工等機械變形作用下，電磁性能將發(fā)生劣化。為此進行應(yīng)力退火，可以使電工鋼的電磁性能恢復(fù)至原來水平。應(yīng)力退火的條件和工藝將根據(jù)加工程度、香港同城退火爐況等有明顯不同，用戶務(wù)必注意如下幾點：(1) 加熱與冷卻速度電磁性能一般不受加熱和冷卻速度的影響，但用戶需確保材料不變形。(2)退火溫度與保溫時間取向電工鋼退火溫度在780-820℃之間較為適宜，為確保退火效果，退火材料應(yīng)均熱的保持，保溫時間應(yīng)根據(jù)鐵芯形狀、香港同城裝爐量等進行調(diào)整。(3)防止?jié)B碳與氧化由于滲碳及氧化會使電磁性能劣化，用戶應(yīng)充分注意爐內(nèi)氣體，并確保爐內(nèi)氣體的露點在較低狀態(tài)。另外，為防止在退火中發(fā)生滲碳，應(yīng)該在退火前，將鐵芯加工過程中潤滑油脂等有機化合物干凈。同時，為確保退火效果，建議與爐內(nèi)高溫接觸部分盡量采用低碳含量材料。有害物質(zhì)限定承諾 寶鋼的取向電工鋼產(chǎn)品符合RoHS、香港同城REACH有害物質(zhì)限定要求。