钢管2025，Vol.54Issue(6)：14-20,7.DOI:10.19938/j.steelpipe.1001-2311.2025.6.14.20
基于热过程模拟的X65焊管接头韧性差异分析
Thermal Process Simulation-based Analysis of Toughness Differences in X65 Welded Pipe Joint
CHEN Xiaowei 1WANG Bin 1ZANG Shouying 2FENG Chun 1ZHAO Bo 1WANG Yang3
作者信息
- 1. CNPC Bohai Equipment Manufacturing Co.,Ltd.,Tianjin 300450,China
- 2. Bohai Equipment Julong Steel Pipe Co.,Ltd.,Qingxian 062658,China
- 3. North China Petroleum Steel Pipe Co.,Ltd.,Qingxian 062658,China
- 折叠
摘要
Abstract
Since the cost is rather high for directly using the steel pipe to conduct the testing of the performance of the welded joint,usually the small test plate is used instead of the steel pipe.However,with the same welding parame-ters,there is a significant difference in the impact toughness between the steel pipe and the test plate.Accordingly the thermal conductive silicone is added at the bottom of the test plate so as to get the result similar to the impact toughness of the steel pipe,which indicates that the temperature field is an important factor as leading to the impact toughness di-fference between the test plate and the test steel pipe.Owing to jointly using the finite element simulation software with the welding process experiment,a numerical analysis model for the steel test plate and the steel pipe of the X65 pipeline steel is established.Then the temperature fields of the welding test plate and the test pipe are simulated,and calculated.Furth-ermore the reasons for the difference in impact toughness between the said test pipe and the test plate are analyzed by com-paring the joint microstructure and the hardness distribution of the two.And the specific difference in cooling time between the two is quantified,providing a theoretical basis for the follow-up silicone addition to adjust the temperature field data.关键词
管线钢/韧性/三丝埋弧焊/温度场/软件模拟Key words
pipeline steel/toughness/3-wire submerged arc welding/temperature field/software simulation引用本文复制引用
CHEN Xiaowei,WANG Bin,ZANG Shouying,FENG Chun,ZHAO Bo,WANG Yang..基于热过程模拟的X65焊管接头韧性差异分析[J].钢管,2025,54(6):14-20,7.
