کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11001074 | 1429319 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Manufacturing progress of first delivery sector of ITER vacuum vessel thermal shield
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Manufacturing progress of first delivery sector of ITER vacuum vessel thermal shield Manufacturing progress of first delivery sector of ITER vacuum vessel thermal shield](/preview/png/11001074.png)
چکیده انگلیسی
This paper describes the manufacturing progress of ITER Vacuum Vessel Thermal Shield (VVTS) sectors, which are on-going since the start of material buffing in October 2014. Fabrication of VVTS proceeds according to the following main processes: 1) plate cutting, 2) bending and forming, 3) welding, 4) flange final machining, 5) pre-assembly of 40â¯Â° sector, 6) silver coating and 7) final acceptance test. All VVTS shell segments are to be assembled by the flange joints, which are welded to the shells. Two kinds of inspection methods are presented for the cooling pipe welding: endoscope and leak test. A specific endoscope is developed for a long welded cooling pipe. Vacuum leak test is performed in the test vacuum chamber with the helium pressurization of cooling pipe by 3â¯MPa, which is the same pressure differential with the operating condition of the VVTS. One of the dimensional inspection, 3D laser scanning is also described to see the effect of shape correction for the flange to shell welding. Silver coating jig design has been carried out, focusing on the electrode position. Structural analysis results are shown for the design of pre-assembly jig of 40â¯Â° sector. Finally near term schedule of the manufacturing is summarized.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 134, September 2018, Pages 132-136
Journal: Fusion Engineering and Design - Volume 134, September 2018, Pages 132-136
نویسندگان
Dong Kwon Kang, Kwanwoo Nam, Kyoung-O Kang, Chang Hyun Noh, Wooho Chung, Hyeon Gon Lee, Kijung Jung, Kisuk Lim, Youngkil Kang, Manoj Panchal, German Perez Pichel, Namil Her, Chang Ho Choi,