介绍了阀体与接管焊接的焊缝技术要求、执行标准、检验内容及合格指标。
Introduce welded seam specification, standards performed, inspectation items and acceptable index for welding of body and joint pipe.
采用纵剪带钢生产小口径螺旋焊管时，超声波检验经常在焊缝的一侧发现缺陷波，而X射线拍片检验却很难发现。
The defects will be found in the seam side with ultrasonic inspection but hardly found with X ray inspection as the small diameter spiral pipe production with the split strip steel.
在分析ERW钢管焊缝组成及性能特点的基础上，进而介绍了其在线热处理工艺种类、特点以及热处理后的焊缝检验。
On the basis of analysis to microstructure and properties of weld of ERW pipe, types and features of heat treatment and the weld inspect after heat treatment are introduced.
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