Chidziwitso Chofanana cha ERW

        Mapaipi achitsulo a ERWAmapangidwa ndi "kukana" kwamagetsi kotsika kapena kokwera. Ndi mapaipi ozungulira olumikizidwa kuchokera ku mapepala achitsulo okhala ndi mipata yayitali. Amagwiritsidwa ntchito kunyamula gasi ndi zinthu zamadzimadzi monga mafuta ndi gasi wachilengedwe, ndipo amatha kukwaniritsa zofunikira zosiyanasiyana za kuthamanga kwambiri komanso kotsika. Pakadali pano ili ndi udindo wofunikira kwambiri pa ntchito ya mapaipi oyendera padziko lonse lapansi.
Polumikiza mapaipi a ERW, kutentha kumatulutsidwa pamene mphamvu yamagetsi ikuyenda pamwamba pa malo olumikizirana a malo olumikizirana. Imatenthetsa m'mbali ziwiri zachitsulo mpaka pomwe m'mphepete umodzi ungapange mgwirizano. Pankhaniyi, pansi pa kupanikizika kwa malumikizano, m'mbali mwa chitoliro chopanda kanthu zimasungunuka ndikutulutsidwa pamodzi.

KawirikawiriMapaipi a ERWMapaipi akuluakulu amapangidwa pogwiritsa ntchito SAW, ndipo ali ndi mainchesi 609 (24 mm) m'mimba mwake, ndipo mapaipi akuluakulu amapangidwa pogwiritsa ntchito SAW.
Pali mapaipi ambiri omwe angapangidwe pogwiritsa ntchito njira ya ERW. Pansipa tilemba miyezo yodziwika bwino ya mapaipi.
Mapaipi achitsulo cha kaboni a ERW ASTM A53 Giredi A ndi B (ndi galvanized) Mapaipi achitsulo cha kaboni a ASTM A252 Mapaipi a ASTM A500 Mapaipi a ASTM A134 ndi ASTM A135Mapaipi a EN 10219 S275, mapaipi a S355.
Chitoliro cha Chitsulo Chosapanga Dziwe cha ERW ASTM A269 Miyezo ndi Mafotokozedwe Chitoliro cha Chitsulo Chosapanga Dziwe cha ASTM A270 Chitoliro cha Chitsulo Chosapanga Dziwe cha ASTM A312 Chitoliro cha Mapaipi cha ASTM A790 Chitoliro cha Chitsulo Chosapanga Dziwe cha Ferritic/Austenitic/Duplex.
API ERW line payipi API 5L B mpaka X70 PSL1 (PSL2 iyenera kukhala njira ya HFW) API 5CT J55/K55, N80chivundikiro ndi chubu.
Kugwiritsa ntchito ndi kugwiritsa ntchito chitoliro chachitsulo cha ERW: Chitoliro chachitsulo cha ERW chimagwiritsidwa ntchito ponyamula mpweya ndi zinthu zamadzimadzi monga mafuta ndi gasi wachilengedwe, ndipo chimatha kukwaniritsa zofunikira zochepa komanso zapamwamba. M'zaka zaposachedwa, ndi chitukuko cha ukadaulo wa ERW, mapaipi ambiri achitsulo a ERW akugwiritsidwa ntchito m'magawo amafuta ndi gasi, makampani opanga magalimoto, ndi zina zotero.