水冷陶瓷增殖包层第一壁电子束焊接的模拟分析

doi:10.16568/j.0254-6086.202303007

核工业西南物理研究院 ›› 2023, Vol. 43 ›› Issue (3): 290-297.DOI: 10.16568/j.0254-6086.202303007

水冷陶瓷增殖包层第一壁电子束焊接的模拟分析

张勇1, 2, 3，吴杰峰*1, 4，刘松林1 ，雷明准1 ，王万景1 ，马建国1, 4

(1. 中国科学院合肥物质科学研究院等离子体物理研究所，合肥 230031； 2. 中国科学技术大学，合肥 230022； 3. 比亚迪汽车工业有限公司，深圳 518118； 4. 淮南新能源研究中心，淮南 232000)

收稿日期:2021-03-26 修回日期:2023-03-15 出版日期:2023-09-15 发布日期:2023-08-31
作者简介:张勇(1991-)，男，甘肃定西人，博士研究生，主要从事低活化铁素体/马氏体钢的电子束焊接研究。
基金资助:
国家磁约束核聚变能发展研究专项(2017YFE0300604、2017YFE0300503)

Simulation analysis on the first wall electron beam welding of water cooled ceramic breeder blanket

ZHANG Yong1, 2, 3, WU Jie-feng1, 4, Liu Song-lin1 , LEI Ming-zhun1 , WANG Wan-jing1 , MA Jian-guo 1, 4

(1. Institute of Plasma Physics, Hefei Institute of material science, Chinese Academy of Sciences, Hefei 230031; 2. University of Science and Technology of China, Hefei 230026; 3. BYD Auto Automobile Industry Co., Ltd, Shenzhen 518118 4. Huainan New Energy Research Center, Huainan 232000)

Received:2021-03-26 Revised:2023-03-15 Online:2023-09-15 Published:2023-08-31

摘要/Abstract

摘要： 作为中国聚变工程试验堆(CFETR)的候选包层的水冷陶瓷增殖包层(WCCB)的结构材料为低活化铁素体/马氏体钢(LAFM)，WCCB 采用电子束焊接(EBW)技术实现连接。第一壁(FW)是 WCCB 的重要组成部分，在 FW 的 EBW 过程中，有多种焊接工艺可供选择。通过有限元模拟，比较了两种不同焊接工艺(第一种为每条焊缝的第一次焊接从 FW 的同一侧开始，第二种为每条焊缝的第一次焊接从前一次焊接完成的一侧开始)下 WCCB 的等效应力和变形情况。结果表明，第一种焊接工艺下的等效应力为 1289MPa，第二种的等效应力为 1286MPa。在焊缝表面上，第一种焊接工艺下沿焊缝的和垂直焊缝的变形量大于第二种下对应的变形量，这为 FW 焊接工艺的确定、工装设计等提供了有利依据。

关键词: 真空电子束焊接, 等效应力, 焊接变形, 有限元分析

Abstract: Water cooled ceramic breeder blanket (WCCB) is one of the candidate blankets for China Fusion Engineering Test Reactor (CFETR). The structural material of WCCB is low activation ferrite/martensite (LAFM) steels, which is connected by electron beam welding (EBW). The first wall (FW) is an important part of WCCB. In the EBW process of FW, there are many welding processes to be chosen. Through finite element simulation, the equivalent stress and deformation of WCCB were compared under two different welding processes, namely the first welding process where the first welding of each weld starts from the same side of FW and the second welding process where the first welding of each weld starts from the side of the previous welding. The results show that the equivalent stress of the first welding process is 1289MPa, and that of the second welding process is 1286MPa. Deformations along and perpendicular to the welding seam on the welding surface in the first welding process are greater than those in the second one. This study provides a favorable basis for the determination of FW welding process and fixture design.

Key words: Vacuum electron beam welding, Equivalent stress, Welding deformation, Finite element analysis

中图分类号:

U467.1+ 3

张勇, 吴杰峰, 刘松林, 雷明准, 王万景, 马建国. 水冷陶瓷增殖包层第一壁电子束焊接的模拟分析[J]. 核工业西南物理研究院, 2023, 43(3): 290-297.

ZHANG Yong, WU Jie-feng, Liu Song-lin , LEI Ming-zhun , WANG Wan-jing , MA Jian-guo. Simulation analysis on the first wall electron beam welding of water cooled ceramic breeder blanket[J]. Nuclear Fusion and Plasma Physics, 2023, 43(3): 290-297.

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水冷陶瓷增殖包层第一壁电子束焊接的模拟分析

Simulation analysis on the first wall electron beam welding of water cooled ceramic breeder blanket

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