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焊接是管线建设的关键技术之一,随着我国管线钢的快速发展,越来越需要匹配的焊接技术来满足管线的建设。分析了激光焊在管道焊接中的优缺点,并采用高功率激光焊接设备,对板厚为16 mm的X52管线钢进行焊接,X射线探伤检测焊缝无裂纹,采用光学显微镜分析了焊接接头的焊缝结晶特性和微观组织。根据美国石油学会标准API SPEC(More)