The main pipeline transport in oil and gas medium is given priority to, also including some other industrial gases, due to the particularity of the transmission medium, so the pipe forming is very important, and in the process of the pipe to form is usually done by welding way, so the welding quality is very important.But in pipe welding on factors that affect the welding quality is more, so you need to choose the suitable welding procedure, so as to guarantee the quality of pipeline construction.
The common methods of pipeline welding are Shielded Metal Arc Welding (SMAW), Submerged Arc Welding (SAW), Gas Tungsten Arc Welding (GTAW), Gas Metal Arc Welding (GMAW), Flux Cored Arc Welding (FCAW) and the downward welding, etc.Choice of welding method should consider the factors including the pipe diameter, wall thickness, tube level, design conditions, pipe length and construction site, etc.
Because of the different pipe diameter, the choice of welding method is also different, so when to use manual welding and automatic welding is a certain difference.This is due to the size of the pipe diameter is different to decide, for less than 0.6 meters of the diameter of the pipe under the during welding is by hand to welding advisable, but more than 0.6 meters of the diameter of the pipe welding, need according to the requirement of the construction schedule to choose manual welding and automatic welding.In large diameter and big wall thickness of pipe welding, you will need to adopt the method of automatic welding, especially long-distance transportation management, automatic welding is the preferred choice.
Welding of long-distance pipeline, need to choose a scientific and reasonable welding method, so the welding scheme is not only to ensure it has a good economy, but also on the premise of quality assurance to keep its high production efficiency.So a scientific and reasonable welding method not only has good feasibility in technology, but also to ensure conformance with the construction progress.Therefore, economic and effective welding method for welding quality has the extremely important role.
Automatic pipe welding machines
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Post time: Oct-25-2017