改进工艺提高大口径循环水钢管焊接质量 摘要：本文主要以笔者个人的工作经验及案例， 探讨如何改进工艺提高大口 径循环水钢管焊接质量的措施 关键词：改进；循环水钢管；焊接质量 Abstract: in the paper, the author personal work experience and case, this paper discusses how to improve the process of large diameter increase circulating water pipe welding quality measures Keywords: improvement; Circulating water pipe; Welding quality 一、现状分析 以往工程，循环水管的制作工程量最多只在 3000吨左右，且管径一般只在 2440mm 左右，焊