配管溶接部に対する超音波探傷システムの開発

概要

論文の詳細を見る
Cracking in longitudinal welded high-energy piping in fossil power plants has been a potential problem for over 20 years. Ultrasonic examination is one technique that helps detect cracking at stages early enough to implement corrective measures. Current ultrasonic methods range from traditional pulse echo techniques, which require a traditional raster scan, to recent Time of Flight Diffraction (TOFD) and phased array techniques. These cutting-edge methods continue to improve, both in terms of cost and the amount of quality information. This report discusses the development of an ultrasonic inspection system and the applicability of the TOFD and phase array techniques to the detection and sizing of cracking, and the concept of a defect characterization approach in heat affected zones in welded high-energy piping.
一般社団法人日本機械学会の論文
2004-12-15