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http://dx.doi.org/10.3795/KSME-A.2013.37.12.1573

Development of Induction Brazing System for Sealing Instrumentation Feedthrough Part of Nuclear Fuel Test Rig  

Hong, Jintae (Dept. of Research Reactor Applications, Korea Atomic Energy Research Institute)
Kim, Ka-Hye (Dept. of Research Reactor Applications, Korea Atomic Energy Research Institute)
Heo, Sung-Ho (Dept. of Research Reactor Applications, Korea Atomic Energy Research Institute)
Ahn, Sung-Ho (Dept. of Research Reactor Applications, Korea Atomic Energy Research Institute)
Joung, Chang-Young (Dept. of Research Reactor Applications, Korea Atomic Energy Research Institute)
Son, Kwang-Jae (Dept. of Research Reactor Applications, Korea Atomic Energy Research Institute)
Jung, Yang-Il (LWR Fuel Technology Division, Korea Atomic Energy Research Institute)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.37, no.12, 2013 , pp. 1573-1579 More about this Journal
Abstract
To test the performance of nuclear fuels, coolant needs to be circulated through the test rig installed in the test loop. Because the pressure and temperature of the coolant is 15.5 MPa and $300^{\circ}C$ respectively, coolant sealing is one of the most important processes in fabricating a nuclear fuel test rig. In particular, 15 instrumentation cables installed in a test rig pass through the pressure boundary, and brazing is generally applied as a sealing method. In this study, an induction brazing system has been developed using a high frequency induction heater including a vacuum chamber. For application in the nuclear field, BNi2 should be used as a paste, and optimal process variables for Ni brazing have been found by several case studies. The performance and soundness of the brazed components has been verified by a tensile test, cross section test, and sealing performance test.
Keywords
Induction Brazing; Nuclear Fuel Test Rig; Ni Brazing; Sealing of Instrumentation Cables;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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