海洋管道强制冷却焊接施工工艺  

Welding techniques of forced cooling marine pipeline construction

作　　者：靳海成[1] 潘鹏杰[2] 郭建良[3] 李广民[1] 

机构地区：[1]中国石油天然气管道科学研究院,河北廊坊065000 [2]天津大港油田集团工程建设有限责任公司,天津300280 [3]中国石油天然气管道局第一工程分公司,河北廊坊065000

出　　处：《焊接技术》2012年第6期25-27,1,共3页Welding Technology

摘　　要：针对海洋管道建设的技术需求,以X65钢为研究对象,对X65钢管在环焊缝焊后冷却至270℃进行水强制冷却,其焊接接头的X射线检测结果和力学性能均满足API 1104—2005及DNV-F101标准的技术要求,说明在270℃以下强制冷却焊接工艺能够满足接头性能要求,该工艺能够在一定程度上提高海洋管道的施工效率,降低施工成本。Taking the X65 steel as a research object,when the girth weld of the X65 steel cooling to 270 ℃,the water forced cooling was started.The results showed that X ray detection and mechanical properties(tensile,bend,hardness and impact)of the girth welded joint could meet API 1104-2005 and DNV F101 requirements.It was described that the welding technique of forced cooling under 270 ℃ could improve the marine pipeline construction efficiency to some extent,reduce the cost of construction.

关 键 词：海洋管道 强制冷却 力学性能 

分 类 号：TG457.6[金属学及工艺—焊接] P75[天文地球—海洋科学]