Exrusion Control of LSAW Steel Pipe in Production

In the straight seam steel pipe production of straight seam steel pipe, manufacturers need to have good control of the pressure. This is why during the welding process, the edge temperatures of the two tube embryos reach the welding temperature, and the pressure can make them infiltrate the common metal particles, resulting in a tightly bound crystallization to achieve the purpose of welding firmly. However, if the lack of extrusion during the crystallization process is poor, the strength of the weld seam is very low, and cracks are prone to occur due to external problems during the process. But when the extrusion is too large, the welding temperature of the weld metal will be squeezed out of the weld seam position, R actually welding together can get the temperature and the metal will be very small, so the number of crystals will be reduced, which will also lead to welding Not strong, but there are many glitches, so it is a more serious flaw, so remind consumers to buy straight seam submerged arc welded steel pipe from the regular manufacturers, because they control the extrusion force is perfect.