Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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An Improvement of Welding Method for the Corrugated Stainless Steel Tubing(CSST)

가스용 금속 플렉시블 호스의 용접방법 개선에 관한 연구

  • Kim, Wan-Jin (Institute of Gas Safety R&D, Korea Gas Safety Corporation) ;
  • Yi, Yeong-Seop (Department of Safety Engineering, Seoul National University of Technology) ;
  • Choi, Jin-Lim (Dong-A Flexible Metal Tubes Co., Ltd.)
  • 김완진 (한국가스안전공사 가스안전연구원) ;
  • 이영섭 (서울산업대학교 안전공학과) ;
  • 최진림 (동아금속주름관(주))
  • Published : 2008.10.31
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Abstract

The corrugated stainless steel tubing(CSST) for the fuel gas piping system can be installed easily and quickly. It is often constructed under the ceiling and the wall which has a good flexibility and installation in comparison with iron pipe. However, the quality of the CSST is determined to depend upon the welding skill of stainless steel tubing. In this study, it is tested by controlling jet point of Ar as inert and cooling gas, and also compared with the bead state of welding point and the performance. As a result, it has the best condition when the jet point of Ar is located behind $5{\sim}10mm$ of the welding point.

Keywords

References

  1. ANSI LC 1-2005/CSA 6.26-2005, Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing
  2. LIA300, "金屬フレキシブル ー ス檢査規程"
  3. LIA310, "液化石油ガス配管用 フレキ官檢査規程
  4. 김희진, 유희수, "Ways to Improve Reliability against Stress-Relief Cracking in Weld Metal", 대한용접학회논문집, Vol. 25, pp. 105-107, 2007 https://doi.org/10.5781/KWJS.2007.25.2.003
  5. 김문영, 양성호, 박상열, 최희숙, 고원, 채나현, "열 처리조건에 따른 Ni기지 초합금 용접부의 기계적 특성", 대한기계학회 논문집, Vol. 31, pp. 525-527, 2007 https://doi.org/10.3795/KSME-A.2007.31.4.525
  6. 양동영, 신금속재료학, 문운당, pp. 279-282, 2007
  7. 김정근, 김기영, 박해웅, 금속현미경조직학, 도서출판골드, pp. 226-237, 1999
  8. 연윤모, 금속재료 용접성, 기전연구사, pp. 56-60, 2003