| 摘要 |
Method for connecting pipes (1), (6), provided with an internal protective coating, being sensible for heat. First on each of the pipes by the head end an annular coupling element (2), (7) has been welded. Then the pipes are being provided with an internal protective coating. Finally the annular coupling elements are welded to one another at a relatively large distance from the pipes such that the welding heat is prevented from reaching the protective coating. |
