Liela diametra metinātas cauruļu ražošanas vienības

Ir dažādas ražošanas metodes liela diametra taisnai šuvēm, kas iegremdētas ar loka metināto cauruli ({20 - 64 collas) ražošanas vienības . Uoe metode rada caurules ar vislabāko kvalitāti un augstāko uzticamību, bet milzīgā būvniecības ieguldījums nav izveidots. large-diameter structural pipes (with a maximum outer diameter of 4000mm), has been transformed into the RBE method. Thanks to its high production flexibility and low investment, the RBE method has been promoted in developing countries. Among the 13 large-diameter straight seam submerged arc welded pipe production units built abroad since the 1990s, some are RBE units. In addition, the PFP forming method developed by SMS-Demag in Germany is also applied to produce large-diameter straight seam submerged arc welded pipes. Moreover, large-diameter spiral submerged arc welded pipe production units are still being constructed in some countries, used for manufacturing both structural pipes and pipeline pipes for oil and gas transportation, ar augstāko tērauda pakāpi sasniedz x 80.