管系環(huán)焊縫射線檢測透照次數(shù)計(jì)算

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摘 要:本文討論了ASME V和CB/T3558兩個(gè)標(biāo)準(zhǔn)的相關(guān)條款,并根據(jù)工件規(guī)格及X射線機(jī)曝光曲線,計(jì)算出管系環(huán)向?qū)雍缚p符合ASME V標(biāo)準(zhǔn)要求的一次透照長度,為現(xiàn)場實(shí)際操作提供參考,提高射線檢測工作效率。
關(guān)鍵詞:黑度范圍;有效長度;環(huán)縫檢測
中圖分類號:U671.8 文獻(xiàn)標(biāo)識碼:A
Calculation of Penetrate Times for Piping
Weld Radiographic Testing
GUO Dazhou, ZHANG Biao, DONG Xue, PENG Lvgao, XU Wentao
( CSSC Huangpu Wenchong Shipbuilding Co., LTD., Guangzhou 511462 )
Abstract: This paper discusses about the relevant clauses of ASME V and CB/T3558, and use workpiece specifications and X-ray exposure curve to calculate the effective length of circumferential butt weld in accordance with ASME V standard. This parameter can provide reference for the actual operation. The calculation of the maximum effective length can improve the efficiency of X-ray detection.
Key words: film density range; effective length; circumferential weld test
1 前言
我司承建的某海洋石油鉆井平臺,沖樁管系有大量的環(huán)向?qū)咏宇^環(huán)焊縫需要進(jìn)行100%射線照相檢測。(剩余5540字)