Ultrasonic testing of the residual stress of the cathode roll of the titanium cylinder of a 2.7 m lithium battery copper foil integrated machine
-
摘要: 随着绿色新能源汽车的发展，锂电铜箔的需求量越来越大，高质量的电解铜箔厚度较薄，其质量受阴极辊表面状态和内部应力影响较大。针对国产化锂电铜箔一体机铜箔质量提升的需求，对其核心部件阴极辊的残余应力进行了超声检测，采用盲孔法对测试点进行了验证，比较了焊接、旋压等工艺处理的阴极辊表面残余应力分布的差异，指出3种阴极辊表面存在不同的压应力状态，为产品设计提供了重要借鉴。最后为评价振动阴极辊的消应力工艺，采用超声法对阴极辊振动消除残余应力的效果进行了测试与评价。Abstract: With the development of green new energy vehicles, the demand for lithium battery copper foil is increasing. High-quality electrolytic copper foil is rather thin, and its quality is greatly affected by the surface state and internal stress of the cathode roller. In response to the need to improve the quality of copper foil of the domestic lithium battery copper foil integrated machine, the residual stress of its core component cathode roller was ultrasonically tested, the test point was verified by the blind hole method, and the welding, spinning and other process treatments were compared. The difference in the residual stress distribution on the surface of the cathode roll indicates that the three types of cathode rolls have different compressive stress states, which provides an important reference for product design. At the same time, in order to evaluate the stress relief process of the vibrating cathode roller, the ultrasonic method was used to test and evaluate the effect of vibration elimination of the residual stress on the cathode roller.
-
Keywords:
- cathode roll /
- residual stress /
- ultrasonic /
- titanium cylinder
-
-
[1] 许俊如, 吉毅松.对电解铜箔装备发展的思考[J].原材料与设备,2015(6):43-47. [2] 许俊如, 吉毅松,蔡瑞,等.生箔机设计中的关键技术[J].原材料与设备,2016(5):43-48. [3] 张永清, 吉毅松,孙丽红.国内外电解生箔机及铜箔发展情况的介绍[J].河北建筑工程学院学报,2013,31(4):80-82. [4] 任利娜, 张建勋,鞠鹤.钛焊接阴极辊接头及母材均晶化研究[J].热加工工艺,2015,44(17):32-35. [5] 任利娜, 侯智敏,牛靖,等.电解铜箔用阴极辊的研究进展及发展趋势[J].精密成形工程,2020,12(2):84-92. [6] LU H,LIU X S,YANG J G,et al.Ultrasonic stress evaluation on welded plates with Lcr wave[J].Science and Technology of Welding and Joining,2008,13(1):70-74.
[7] LU H, MA Z Q, LIU X S, et al. Ultrasonic residual stress measurement of 300 km/h high speed train body[J].Transactions of the China Welding Institution, 2010, 31(8):29-32.
[8] 路浩, 刘雪松,杨建国,等.激光全息小孔法验证超声波法残余应力无损测量[J].焊接学报,2008,29(8):77-79,117. [9] 路浩, 刘雪松,孟立春,等.高速列车车体服役状态残余应力超声波法无损测量及验证[J].焊接学报,2009,30(4):81-83,117. [10] 路浩, 马子奇,刘雪松,等.300 km/h高速列车车体残余应力超声波法无损测量[J].焊接学报,2010,31(8):29-32. [11] 路浩, 李军.箱型搅拌摩擦焊结构残余应力超声波法测量[J].焊接,2014(3):27-30,70. [12] 路浩. 铝合金静止轴肩搅拌摩擦焊残余应力超声波法测量[J].焊接,2015(1):25-28,70. [13] 路浩. 焊接残余应力场声弹性不稳定性分析[J].焊接学报,2015,36(2):105-108,118. [14] 路浩. 基于全包络权重算法的超声波法残余应力无损测量系统[J].焊接学报,2015,36(3):101-104. [15] 路浩, 邢立伟,邢敬伟.超声波法焊接残余应力测量技术[J].焊管,2019,42(8):50-55. [16] 路浩, 朱政,邢立伟.高钢级管道残余应力超声波法检测及小孔法验证[J].油气储运,2021,40(5):533-538.
计量
- 文章访问数: 7
- HTML全文浏览量: 8
- PDF下载量: 2
下载:
