Exrusion Control of LSAW Steel Pipe in Production

In the manufacturing of lsaw steel pipe, the lsaw steel pipe manufacturers need to have very good control of the extrusion force.This is reason why in the welding process, the two tube embryo edge temperature reaches the welding temperature, The pressure can make their mutual penetration of metal grains, resulting in a combination of close crystallization, to achieve the purpose of welding firmly.But if the squeeze in the lack of crystallization is not well formed, the strength of the welding position will very low, in the course of the process is very easy to crack because of the role of external problems.But when the extrusion is too large to reach the welding temperature of the weld metal will be squeezed out of the weld location, the real welding together can be get the temperature and the metal will be very small, so the number of crystals will be reduced, it will also lead to welding is not strong enough, but also have a lot of burr, so it is more serious to the defects, so reminder consumers should buy the lsaw steel pipe from regular manufacturers, because they control the extrusion pressure is perfect.