ERW mapaipi achitsuloamapangidwa ndi otsika pafupipafupi kapena mkulu pafupipafupi magetsi kukana "kukana".Ndi mapaipi ozungulira omwe amawotcherera kuchokera ku mapepala achitsulo okhala ndi seams longitudinal.Amagwiritsidwa ntchito kunyamula gasi ndi zinthu zamadzimadzi monga mafuta ndi gasi, ndipo amatha kukwaniritsa zofunikira zosiyanasiyana zamphamvu komanso zotsika.Pakali pano ili ndi malo ofunikira kwambiri pantchito zamapaipi amayendedwe padziko lonse lapansi.
Mukawotcherera mapaipi a ERW, kutentha kumatulutsidwa pamene madzi akuyenda molumikizana ndi malo olumikizirana.Imatenthetsa mbali ziwiri zachitsulo mpaka m'mphepete umodzi ukhoza kupanga chomangira.Pachifukwa ichi, pansi pa kukanikiza pamodzi, m'mphepete mwa chitoliro chopanda kanthu chimasungunuka ndikutulutsidwa pamodzi.
Nthawi zambiriMtengo wa ERWkukhala ndi mainchesi akunja kwa mainchesi 24 (609 mm), mapaipi akulu amapangidwa pogwiritsa ntchito SAW.
Pali mapaipi ambiri omwe angapangidwe pogwiritsa ntchito njira ya ERW.M'munsimu ife lembani mfundo zofala kwambiri mu mapaipi.
ERW ASTM A53 Mapaipi A kalasi A ndi B (ndi malata)ASTM A252carbon steel mapaipiASTM A500 mulu mapaipiASTM A134 ndi ASTM A135 mapaipi opangidwaEN 10219 mapaipi S275, S355 mapaipi.
ERW Stainless Steel Pipe ASTM A269 Miyezo & Mafotokozedwe ASTM A270 Stainless Steel Pipe ASTM A312 Plumbing Pipe ASTM A790 Stainless Steel Pipe Ferritic/Austenitic/Duplex Stainless Steel Pipe.
API ERW mzere chitoliro API 5L B kuti X70 PSL1 (PSL2 ayenera HFW ndondomeko) API 5CT J55/K55, N80casing ndi tubing.
Kugwiritsa ntchito ndi kugwiritsa ntchito chitoliro chachitsulo cha ERW: Chitoliro chachitsulo cha ERW chimagwiritsidwa ntchito ponyamula gasi ndi zinthu zamadzimadzi monga mafuta ndi gasi, ndipo zimatha kukwaniritsa zofunikira zochepa komanso zotsika kwambiri.M'zaka zaposachedwapa, ndi chitukuko cha luso ERW, zambiri ERW zitsulo mapaipi ntchito mafuta ndi gasi minda, makampani magalimoto, etc.
Nthawi yotumiza: May-04-2023