成型和焊接对高强管线钢管焊缝及热影响区冲击韧性的影响  

Influences of Molding and Welding on Toughness of High Strength Pipeline Steel Weld and Heat Affected Zone

作　　者：李丽 杨军 牛辉[2,3] 刘海璋 席敏敏[2,3] 

机构地区：[1]川庆钻探工程公司安全环保质量监督检测研究院,四川广汉618300 [2]国家石油天然气管材工程技术研究中心,陕西宝鸡721008 [3]宝鸡石油钢管有限责任公司钢管研究院,陕西宝鸡721008

出　　处：《焊管》2017年第12期1-6,共6页Welded Pipe and Tube

基　　金：国家科技支撑计划项目"超高强度油气输送管材关键技术研究"(项目编号2011BAE35B01)

摘　　要：为了提高高强管线钢管焊缝及热影响区冲击韧性性能,综述了高强管线钢管成型和焊接对焊缝及热影响区(HAZ)冲击韧性的影响。结果表明,提高高强管线钢管焊缝及HAZ冲击韧性的有效方法是,根据原料特性、生产要求、产品规格及性能指标等制定合理成型工艺和焊接工艺,精确控制成型合缝质量和焊接热输入,合理匹配线能量和预热温度,正确选用焊丝和焊剂。In order to enhance toughness of high strength pipeline steel weld and heat affected zone（HAZ）, the influences of molding and welding were summarized systematically. The resuhs showed that the effective way to improve the impact toughness of high-strength pipeline steel weht anti HAZ was formulating a reasonable mohting process and welding process according to the raw material characteristics, production requirements, product specifications and performance index, controlling forming seam quality and welding heat input accurately, matching line energy and preheating temperature reasonably, and selecting welding wire and flux eorrectly.

关 键 词：高强管线钢 冲击韧性 成型合缝 焊接热输入 

分 类 号：TG407[金属学及工艺—焊接]