四层卷焊管生产的关键技术是其成型技术。
The forming technology is the key step in the manufacturing processes.
介绍了强力焊管的特点及其生产工艺流程。
The characteristic and its production process flow of high strength welded pipe are introduced.
介绍了一种由圆形焊管变方形焊管的变形方式。
A deformation way from round welded pipe to square one is introduced.
同时提出了提高J5 5焊管质量的具体途径。
Meanwhile the specific ways to improve J55 welding pipe quality are put forward.
本文介绍了不锈钢焊管的生产设备和工艺的研究情况。
This paper presents research situation about production equipment and technology of stainless steel welded tube.
在四层卷焊管成形过程的模拟中，最关键的是接触问题的处理。
Therefore, simulation of its processes is quite complex. The contact problem is the key one.
焊缝位置和壁厚差异变化时，拼焊管各区域的应力状态保持不变。
Weld-seam position and thickness difference do not affect stress and strain states.
流体用不锈钢焊管：啤酒、饮料、牛奶、供水系统、医药设备等。
Fluid stainless-steel pipe: beer, drinks, milk, water systems, medical equipment and so on.
此外，在紧急情况下可将焊炬上的乙炔胶管拔下来。
In addition, in case of emergency can be acetylene torch on the pull down hose.
焊好今后要对管件停止酸洗和钝化处置。
Welding in the future to the pipe to stop pickling and passivation disposal.
欧洲焊碳管市场或将脱离当前的极度低迷状态。
Welded carbon market in Europe or from the current extremely low ebb.
欧洲焊碳管市场或将脱离当前的极度低迷状态。
Welded carbon market in Europe or from the current extremely low ebb.
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