パルス渦電流探傷試験法を用いた被覆鋼管肉厚の定量評価法の提案

書誌事項

タイトル別名
  • Proposal of Quantitative Evaluation Method of Covered Steel Tube Thickness Using Pulse Eddy Current Testing Method
  • パルス ウズデンリュウタンショウ シケンホウ オ モチイタ ヒフク コウカン ニクアツ ノ テイリョウ ヒョウカホウ ノ テイアン

この論文をさがす

抄録

<p>The steel tube for liquefied natural gas in a petrochemical plant is used. This steel tube of a large diameter is covered with the thermal insulation material and the sheet metal. On the inspection of the thickness or the corrosion in this steel tube, the sheet metal and the thermal insulation material are removed from the steel tube. However, much cost and time are needed for this inspection. In this paper, the pulse electromagnetic inspection method for detecting the defect in the steel tube from the upper side of the insulation material and the sheet metal is proposed. The defect is inspected by measuring of the slope of the output voltage from the maximum output voltage value obtained immediately after cutting off the pulse wave magnetic field. In addition, the proposed inspection method is investigated by the 3-D nonlinear FEM taking account of hysteresis magnetizing properties and eddy current in the steel tube.</p>

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (6)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ