摘要
以川气东送工程用X70钢级Φ1016mm×17.5mm螺旋埋弧焊管生产为例,结合成型与焊接的关系,介绍了高强度、大壁厚螺旋埋弧焊管生产过程中常见的成型工艺缺陷(如管径超差、错边、"噘嘴"、裂纹等),分析其产生的原因,并针对性地采取相应的预防措施,不仅提高了钢管成型质量,同时在提高焊接质量和焊速,降低工人劳动强度以及提高设备利用率等方面均有较好的效果。
Taking the production of the Ф1016 mm×17.5 mm X70 spiral SAW pipes as supplied for the Siehuan-East Gas Transport Pipeline Project as an example, and considering the relationship between shaping and welding processes, the common defects as occur in the manufacturing process of hi-strength, heavy wall spiral SAW pipes （including excessive O.D. deviation, edge displacement, ＂pouting＂ and cracking, etc.） are described, and the causes for such defects are analyzed. Accordingly preventative actions are taken. As a result the shaping quality of the pipe is improved, and welding quality and welding speed are enhanced, having reduced the labor intensity of the operators and increased the equipment availability.
出处
《钢管》
CAS
2008年第5期51-54,共4页
Steel Pipe
关键词
螺旋埋弧焊管
成型工艺缺陷
产生原因
预防措施
Spiral SAW pipe
Shaping process defect
Causes for occurrence
Preventative actions
