ERW steel yeeb nkab yog tsim nrog tsawg zaus lossis siab zaus ua haujlwm "ua haujlwm". Lawv yog cov kav dej puag ncig welded los ntawm cov nplooj ntawv steel nrog longitudinal seams. Nws yog siv los thauj cov khoom ua kua-vapor xws li roj thiab nkev, thiab tuaj yeem ua tau raws li ntau yam kev xav tau ntawm kev kub siab thiab qis. Tam sim no nws nyob hauv txoj haujlwm tseem ceeb hauv kev thauj mus los hauv lub ntiaj teb.
Thaum vuam ERW kav, cua sov yog tsim thaum muaj hluav taws xob tam sim no ntws los ntawm kev sib cuag ntawm thaj chaw welded. Nws heats ob lub npoo ntawm cov hlau mus rau qhov chaw uas ib ntug tuaj yeem tsim kev sib koom ua ke. Hauv qhov no, nyob rau hauv kev sib xyaw ua ke, cov npoo ntawm cov yeeb nkab yog melted thiab compressed.
Feem ntau ERW cov kav dej muaj qhov siab tshaj plaws sab nraud ntawm 24 ntiv tes (609 mm), qhov loj dua yog ua ntawm SAW.
Muaj ntau cov kav dej uas tuaj yeem ua tau siv txoj kev ERW. Hauv qab no peb sau cov qauv uas feem ntau hauv cov kav dej.
ERW ASTM A53 Qib A thiab B (thiab galvanized) ASTM A252 carbon steel yeeb nkab ASTM A500 pawg yeeb nkab ASTM A134 thiab ASTM A135 cov yeeb nkab EN 10219 S275, S355 yeeb nkab
ERW Stainless Hlau Yeeb Nkab / ASTM A269 Yeeb Nkab Cov Qauv & Specifications ASTM A270 Stainless Hlau Yeeb Nkab ASTM A312 Sanitary Pipe ASTM A790 Stainless Hlau Yeeb Ferritic / Austenitic / Duplex Stainless Hlau Yeeb
Kab yeeb nkab API ERW API 5L B rau X70 PSL1 (PSL2 yuav tsum nyob rau hauv HFW txheej txheem) API 5CT J55 / K55, N80 casing thiab tubing
Daim ntawv thov thiab siv ERW steel yeeb nkab: ERW steel yeeb nkab yog siv los thauj cov roj thiab cov khoom ua kua xws li roj thiab roj, thiab tuaj yeem ua tau raws li qhov yuav tsum tau ua kom qis thiab siab. Nyob rau hauv xyoo tas los no, nrog rau txoj kev loj hlob ntawm ERW technology, ntau thiab ntau ERW steel kav yog siv nyob rau hauv cov roj thiab roj teb, automotive kev lag luam thiab lwm yam teb.