CAJ | 학술논문

本文介绍了小径管环缝探伤胶片平面式和包裹式两种放置方式对双壁双影椭圆成像的影像长度及缺陷（φ2mm通孔）检出率的两个实验结果，得出了小径管环缝探伤双壁双影透照时，胶片采用包裹式放置缺陷检出率优于平方式布置的结论。
본문개소료소경관배봉탐상효편평면식화포과식량충방치방식대쌍벽쌍영타원성상적영상장도급결함（φ2mm통공）검출솔적량개실험결과，득출료소경관배봉탐상쌍벽쌍영투조시，효편채용포과식방치결함검출솔우우평방식포치적결론。
This paper introduced two experiment results of double wall and double shadow elliptic imagery length and defect (φ2mm through hole) detection rate of small-diameter pipe welding detection of the two different placement way of iflm for plane type and packaged type. The conclusion was obtained when using double wall and double image transmission for small-diameter tube welding test, it is better that the defect detection rate with packaged type placement of the iflm than that with lfat type.