Oblique Y-groove cracking test of the welding cold cracking susceptibility of domestic X-70 pipeline steel |
| |
作者姓名: | 陈丽萍 杜则裕 李云涛 李九生 |
| |
作者单位: | SchoolofMaterialScienceandEngineering,TianjinUniversity,Tianjin,300072 |
| |
摘 要: | “Gas Transmitting From West to East Project“ is significant.it should ensure the welding quality and safety of pipeline.The task is very arduous to guarantee the quality of the projcet in the condition of long line.complex weather and geolgy features.in this paper,the welding cold cracking susceptibility of domestic X-70 pipeline steel adopted by the project, which is one of the most interesting questions of welding quality about petrol pipeline,was studied by means of oblique Ygroove cracking test.The crack ration of surface and section was tested under the conditions of different welding materials and preheat temperature.The thickness of plate stell was 14.7mm and 10.3mm.The results reveal that X-70 pipeline steel has good crack resistance.The research has important value for the construction of large-scale pipeline engineering and the application of domestic X-70 pipeline steel.
|
关 键 词: | 预加热 倾斜 Y形开槽断裂测试 X-7D管道钢 冷裂磁化率 焊接质量 西气东输 |
Oblique Y-groove cracking test of the welding cold cracking susceptibility of domestic X-70 pipeline steel |
| |
Abstract: | "Gas Transmitting From West to East Project" is significant. It should ensure the welding quality and safety of pipeline. The task is very arduous to guarantee the quality of the project in the condition of long line, complex weather and geology features. In this paper, the welding cold cracking susceptibility of domestic X-70 pipeline steel adopted by the project, which is one of the most interesting questions of welding quality about petrol pipeline, was studied by means of oblique Y-groove cracking test. The crack ratio of surface and section was tested under the conditions of different welding materials and preheat temperature .The X-70 pipeline steel has good crack resistance. The research has important value for the construction of large-scale pipeline engineering and the application of domestic X-70 pipeline steel. |
| |
Keywords: | X-70 pipeline steel cold cracking susceptibility oblique Y-groove cracking test |
本文献已被 维普 万方数据 等数据库收录! |