Key manufacturing technologies of the CFETR 1/8 vacuum vessel sector mockup

doi:10.1016/j.fusengdes.2020.112166

	Key manufacturing technologies of the CFETR 1/8 vacuum vessel sector mockup
	Ma, Jianguo 1,2; Wu, Jiefeng 1,2; Liu, Zhihong 1,2; Wang, Rui 1,2; Gu, Yongqi 2; Fan, Xiaosong 4; Ji, Haibiao 3,4
刊名	FUSION ENGINEERING AND DESIGN
	2021-02-01
卷号	163
关键词	CFETR 1/8 vacuum vessel sector Fabrication
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2020.112166
通讯作者	Ji, Haibiao(jhb@ipp.ac.cn)
英文摘要	This paper introduces key technologies and main advances in the development of the 1/8 vacuum vessel (VV) sector mockup of China fusion engineering test reactor (CFETR). The contour accuracy of each VV shell is controlled within +/- 2 mm through hot forming, solution treatment, and correction of each hyperboloid shell, and cold forming of the single-curved shell. The welding structure between the 1/8 sectors of CFETR VV on site is simulated by using the welding structure between two 1/16 VV sectors as a model. The narrow-gap TIG (NG-TIG) welding process is designed and explored in the sector welding of the 1/32 VV sector. Electron beam (EB) welding of the port stub is completed, and the weld quality meets the design requirement. The results of phased array ultrasonic testing (PAUT) technology reveal that the testing process meets RCC-MR technical requirements and solves the problems of full volume coverage (i.e., missed detection) and signal-to-noise ratio (i.e., misjudgment) of austenitic stainless steel welds. The automatic ray film arrangement trolley can achieve the automatic arrangement of the X-ray film between double shells when the VV is welded on-site. The measurement solution of three-dimensional complex space solves the problem of collimation positioning measurement during the welding, machining, and assembly of the 1/8 VV sector. The results of the study on the virtual assembly and reverse machining technology provide guidance for the actual assembly of the 1/8 VV sector. Finally, measurement and machining of the allowance are realized to solve the problem of numerical control machining of workpieces without a machining datum.
资助项目	China National Magnetic Confinement Fusion Science Program[2015GB107003] ; Comprehensive Research Facility for Fusion Technology Program of China[2018-000052-73-01-001228]
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000612434700003
资助机构	China National Magnetic Confinement Fusion Science Program ; Comprehensive Research Facility for Fusion Technology Program of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/120544]
专题	中国科学院合肥物质科学研究院
通讯作者	Ji, Haibiao
作者单位	1.Anhui Prov Key Lab Special Welding Technol, Huainan 232063, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Lappeenranta Univ Technol, Lappeenranta 53810, Finland 4.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China
推荐引用方式 GB/T 7714	Ma, Jianguo,Wu, Jiefeng,Liu, Zhihong,et al. Key manufacturing technologies of the CFETR 1/8 vacuum vessel sector mockup[J]. FUSION ENGINEERING AND DESIGN,2021,163.
APA	Ma, Jianguo.,Wu, Jiefeng.,Liu, Zhihong.,Wang, Rui.,Gu, Yongqi.,...&Ji, Haibiao.(2021).Key manufacturing technologies of the CFETR 1/8 vacuum vessel sector mockup.FUSION ENGINEERING AND DESIGN,163.
MLA	Ma, Jianguo,et al."Key manufacturing technologies of the CFETR 1/8 vacuum vessel sector mockup".FUSION ENGINEERING AND DESIGN 163(2021).