新能源汽车锂电池用3003铝合金退火工艺研究  

Research on Annealing Process of 3003 Aluminum Alloy for Lithium Battery of New Energy Vehicle

作　　者：李永欣 Li Yongxin(Tianjin Zhongwang Aluminum Co.,Ltd.,Tianjin 301700)

机构地区：[1]天津忠旺铝业有限公司,天津301700

出　　处：《汽车工艺与材料》2024年第11期22-26,共5页Automobile Technology & Material

摘　　要：为研究退火工艺对新能源汽车锂电池用3003铝合金性能与组织的影响,利用电子万能试验机、硬度计、杯突试验机、成形试验机与光学显微镜等,研究了新能源汽车锂电池用3003铝合金在不同温度(150~500℃)下保温3 h试验炉退火后的室温力学性能、硬度值、杯突值、制耳率与显微组织的演变特性,确定了3003铝合金较优的试验退火工艺。结果表明,3003铝合金在退火温度为400℃、保温时间为3 h时,获得了力学性能、成形性能与显微组织的最佳组合,将该退火工艺应用于生产现场的箱式退火炉,结果与试验结果相吻合。In order to explore the effect of annealing process on the properties and microstructure of 3003 aluminum alloy for lithium battery of new energy vehicle,the evolution characteristics of room temperature mechanical properties,hardness,cupping value,earing rate and microstructure of 3003 aluminum alloy for lithium battery of new energy vehicle after annealing at different temperatures(150~500℃)and holding for 3 h are studied by means of electronic universal testing machine,hardness tester,cupping test machine,forming test machine and optical microscope.The preferred experimental annealing process of 3003 aluminum alloy is determined.The results show that the best combination of mechanical properties,formability and microstructure of 3003 aluminum alloy is obtained when the annealing temperature is 400℃and the holding time is 3 h.This annealing process is applied to the box-type annealing furnace on the production site for verification,which is in good agreement with the test results.

关 键 词：锂电池 铝合金 退火工艺 显微组织 

分 类 号：TG146.2[一般工业技术—材料科学与工程] U465.2[金属学及工艺—金属材料]