시험핵연료봉 헬륨가스 충진을 위한 TIG 점용접 장치 개발
Development of TIG spot welding Apparatus for Filling Helium Gas in Nuclear Fuel Test Rod
0
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
To conduct a nuclear fuel irradiation test, the inside of the nuclear fuel rod must be assembledalong with the test fuel, several different parts, and sensors, and then filled with high-pressure andhigh-purityhelium gas. Therefore, it is necessary to develop helium gas filling techniques that can achieveexact TIG (Tungsten Inert Gas) spot welding at a pin-hole of the nuclear fuel rod to fill helium gas intothe nuclear fuel test rod. However, previous apparatuses do not have repeatability for TIG spot weldingas they lack an electrode position control jig to exactly fix a TIG electrode in a high-pressure chamber,and they consume a large amount of helium gas. Therefore, a TIG spot welding apparatus wasdeveloped to easily and accurately conduct TIG spot welding and significantly reduce the gasconsumption. In addition, the optimum welding conditions of this welding apparatus were establishedthrough various weld tests.
Abstract
To conduct a nuclear fuel irradiation test, the inside of the nuclear fuel rod must be assembledalong with the test fuel, several different parts, and sensors, and then filled with high-pressure andhigh-purityhelium gas. Therefore, it is necessary to develop helium gas filling techniques that can achieveexact TIG (Tungsten Inert Gas) spot welding at a pin-hole of the nuclear fuel rod to fill helium gas intothe nuclear fuel test rod. However, previous apparatuses do not have repeatability for TIG spot weldingas they lack an electrode position control jig to exactly fix a TIG electrode in a high-pressure chamber,and they consume a large amount of helium gas. Therefore, a TIG spot welding apparatus wasdeveloped to easily and accurately conduct TIG spot welding and significantly reduce the gasconsumption. In addition, the optimum welding conditions of this welding apparatus were establishedthrough various weld tests.
참고문헌 (6)
- B. G Kim, "Review of Instrumentation for Irradiation Testing of Nuclear Fuels and Materials", Nuclear Technology, 176, pp.155~187 (2011)
- S. K. Park, "Prediction on the Nuclear fuel Cladding Temperatures for the LBLOCAs of the HANARO Fuel Test Loop", Jou. of Korean Soc. of Mechanical Technology, 9(3), pp.1~6 (2007)
- 박국남, "핵연료 노내조사시험설비 시공 및 시험", 한국기계기술학회지, 09(4), pp.1~7 (2007), 한국기계기술학회
- 김가혜, "파이버 레이저 용접 공정을 이용한 stainless와 zircaloy-4의 용접특성 비교", 한국기계기술학회지, 16(4), pp.1727~1732 (2014), 한국기계기술학회[DOI]
- C. Y. Lee, "Development of a Chamber for the Pin-hole Laser Welding", Transactions of the Korean Nuclear Society Autumn Meeting, pp.323~324 (2011)
- 정창용, "시험핵연료봉 헬륨가스 충진 시스템 개발", 대한설비관리학회지, 18(4), pp.67~75 (2013), 대한설비관리학회