新能源汽车驱动电机用无取向硅钢应用现状和性能调控研究进展  

Research Progress on Application Status and Property Control of Non-oriented Silicon Steel for Traction Motor of New Energy Vehicles

作　　者：朱诚意 鲍远凯[1,2] 汪勇 马江华 李光强[1,3] ZHU Chengyi;BAO Yuankai;WANG Yong;MA Jianghua;LI Guangqiang(The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China;Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]省部共建耐火材料与冶金国家重点实验室,武汉430081 [2]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,武汉430081 [3]武汉科技大学钢铁冶金新工艺湖北省重点实验室,武汉430081

出　　处：《材料导报》2021年第23期23089-23096,共8页Materials Reports

基　　金：国家自然科学基金重点支持项目(U1860205)。

摘　　要：汽车和钢铁是我国的支柱产业。新能源汽车可以缓解汽车对化石燃料的依赖,降低温室气体排放量,减少环境污染,具有广阔的应用前景。驱动电机是新能源汽车的动力中心,铁芯是驱动电机实现能量转换的关键部件。无取向硅钢是目前性价比最高、商业化应用最普遍的铁芯材料。开发高频下低铁损、高磁感、高强度的驱动电机用无取向硅钢,是实现新能源汽车产业高质量发展的前提。高品质无取向硅钢可以提升新能源汽车驱动电机能量转换效率、输出功率,延长其使用寿命,并降低材料成本,因而倍受行业关注。本论文从满足铁芯加工装配、保证能量转换效率、降低制备和使用成本、适应电机工作环境变化四个方面归纳出新能源汽车驱动电机对无取向硅钢性能的特殊要求;评价了国内外驱动电机用无取向硅钢主要生产企业的技术开发现状和不同规格产品的铁损、磁感、强度指标;综述了国内外通过优化合金成分体系设计、组织结构调控、制备工艺及产品规格来提高新能源汽车驱动电机用无取向硅钢性能和产品性能评价方面的研究进展;分析了目前驱动电机用无取向硅钢制备和使用过程中存在的问题;指出了未来新能源汽车驱动电机用无取向硅钢的发展趋势,以期为我国新能源汽车驱动电机用高强度无取向硅钢的研发和低成本制造提供参考。Automobile and steel are both the pillar industries in our country.The dependence of vehicles on petrifaction fuel will be remitted,and greenhouse gas emissions will be reduced with less environmental pollution after new energy vehicles are put into use widely.The application prospect of new energy vehicles is broad.Traction motors are the power center of the new energy vehicles,and the core is the key component to realize the energy conversion of the traction motor.Non-oriented silicon steel has been the most cost-effective core material in commercial application up to now.Developing non-oriented silicon steel for traction motor with low iron loss,high magnetic properties and high strength at high frequency working conditions is the premise to realize the high quality development of new energy vehicle industry.High quality non-oriented silicon steels used in traction motor of new energy vehicles will improve the output power,energy conversion efficiency,life of the motor and reduce the production cost,which is highlighted focused.In this paper,the special requirements for the new energy vehicle traction motor on the performance of non-oriented silicon steel are summarized from four aspects,including meeting processing and assembly requirement for the core,ensuring the energy conversion efficiency,reducing the cost of manufacture and use,and adapting to changing work environment of the new energy vehicles.The current technological development situation and the indexes including iron loss,magnetic induction and strength of different specification pro-ducts used at home and abroad are evaluated.This paper reviews the research progress of properties improvement of the non-oriented silicon steel used in the drive motor of new energy vehicles domestic and abroad,by optimizing alloy composition design,microstructure and texture adjustment and control,manufacture process and specification,as well as properties testing.The problems existing in the manufacture and application process of the above non-oriented silicon stee

关 键 词：新能源汽车驱动电机 高强度无取向硅钢 合金化 组织结构 性能 

分 类 号：TG142.7[一般工业技术—材料科学与工程]