Welding

Automatic welding currently leads as the main welding process when it comes to the construction of onshore and offshore transmission pipelines of various diameters.

For small diameter pipes a lot of welding is still done using stick electrodes. However, current industry development tendencies show that automatic welding is beginning to replace manual welding, and is projected to become the go-to technology in this sector as well.

When it comes to rehabilitation and repair, semi-automatic welding keeps dominating the market, while the share of stick welding is decreasing.

The combination of automatic, semi-automatic and manual welding allows to create and maintain a high quality welding workflow, ensuring flexibility, high efficiency, and high output rates.

 

Automatic welding systems can be efficiently combined with semi–automatic and stick welding to form a unified process or can be used autonomously.






Semi–automatic welding is essentially an outgrowth of manual welding, where the stick electrode is replaced with a continuous, automatically fed welding wire. At the same time, making use of Innershield wire enables the welder to eliminate other welding accessories, such as shielding gases (no external gas or flux!).


The advantages of welding with wire are:

  • burn time of the arc is increased, as well as work productivity, since welding need not stop to change electrodes or to grind out the points at which one electrode replaces another,
  • weld joint quality markedly improves due to the absence of start–stop craters and pockets,
  • electrode consumption is reduced
    no electrode stubs left,
    since there are
  • less depends on the skills of the welder.

 

The welding technologies described below fully cover all possible welding requirements, be they in the field or in the plant, whether during pipeline construction or welding in the pipe manufacturing plant. Failure to adopt these technologies can only lead to a loss of competitiveness in the field of pipeline construction.