|
|
|
| Study on the flanging technology with equal diameter and its application in the shell of gas insulated switchgear |
| LIU Nan, DENG Jianqing, ZHENG Yizheng |
| Xi'an XD Switchgear Co., Ltd, Xi'an 710077 |
|
|
|
|
Abstract For the equal diameter flanging shell in gas insulated switchgear, the theoretical calculation results of flanging mouth deviate from the actural processing results largely. A typical equal diameter flanging shell with ϕ 406mm diameter is studied. The flanging die is designed through numerical simulation, and then the shell is flanged in equal diameter with the aid of “flattening-sizing” tooling. It shows that the equivalent stress and loading variation et al. in the numerical simulation are close to the ones in the actual flanging process, and the numerical simulation results are almost consistent with the actual processing results. The size of flanging hole is proven to meet the requirements for the equal diameter flanging technology of ϕ 406mm shell. This process technology achieves the goal of equal diameter flanging for the shells in high-voltage electrical apparatuses, and avoids the subsequent manual correction process in the shell processing, and meanwhile the pass rate of ultrasonic flaw detection on the weld joint of flanging mouth increases from 70% to no less than 92%.
|
|
Received: 06 February 2023
|
|
|
|
| Cite this article: |
|
LIU Nan,DENG Jianqing,ZHENG Yizheng. Study on the flanging technology with equal diameter and its application in the shell of gas insulated switchgear[J]. Electrical Engineering, 2023, 24(3): 81-84.
|
|
|
|
| URL: |
|
http://dqjs.cesmedia.cn/EN/Y2023/V24/I3/81
|
[1] 吴迪, 陈仁刚, 崔勇, 等. 一起500kV GIS异响缺陷的检测分析与处理[J]. 电气技术, 2014, 15(11): 43-46.
[2] 孙恒彬, 赵俊美, 刘庆春. GIS四通壳体翻边成形工艺改进[J]. 金属加工(冷加工), 2020(1): 38-41.
[3] 黎斌. SF6高压电器设计[M]. 北京: 机械工业出版社, 2003.
[4] 张旸, 汪美珍. 252kV GIS分支母线壳体缩口工艺与模具设计[J]. 模具工业, 2016, 42(2): 33-36.
[5] 杨庆宇. 一种252kV罐式断路器焊接壳体的设计[J]. 科技视界, 2013(24): 102-103.
[6] 张建周, 杨俊朋, 李刚. GIS铝制筒体表面变形质量问题分析[J]. 电工电气, 2013(9): 55-56.
[7] 王刘芳, 程登峰, 宋东波, 等. 550kV GIS电流互感器气室外部导流排异常发热的分析[J]. 电气技术, 2017, 18(9): 111-113.
[8] 王孝培. 冲压手册[M]. 北京: 机械工业出版社, 1988.
[9] 刘建军, 卞超, 张建国, 等. GIS分支母线骑坐式焊接接头结构分析及应满足的技术要求[J]. 高压电器, 2012 48(7): 109-113.
[10] 金悦, 何大伟. 高压GIS用焊接壳体加工工艺的改进[J]. 黑龙江科技信息, 2014(30): 64.
[11] 刘芳, 程培元,马志魁. 基于Dyanform的锥形凸模圆孔翻边极限分析[J]. 锻压技术, 2012, 37(4): 170-172.
[12] 段剑, 张立群, 甄利, 等. 一起500kV断路器故障的分析和治理[J]. 高压电器, 2010, 46(7): 90-92.
[13] 刘天聪. 翻边成形件的常见缺陷及修正方法[J]. 模具技术, 2000(4): 70-73.
[14] 第四机械工业部标准化研究所. 冷压冲模设计[M]. 5版. 北京: 第四机械工业部标准化研究所, 1981.
[15] 刘楠, 赵向苹, 张大伟, 等. 高压电气用壳体翻边工艺过程分析及翻边口精度提升[J]. 高压电器, 2019, 55(5): 245-250. |
|
|
|
2023, Vol. 24 
