ERW steel kav yog tsim los ntawm tsawg zaus los yog high-frequency resistance "ua hauj". Lawv yog cov kav dej welded los ntawm steel phaj nrog longitudinal welds. Nws yog siv los thauj cov roj, nkev roj thiab lwm yam khoom vapor-kua, thiab tuaj yeem ua tau raws li ntau yam kev xav tau ntawm qhov siab thiab qis. Tam sim no, nws nyob hauv txoj haujlwm tseem ceeb hauv kev thauj mus los kav hauv ntiaj teb.
Thaum lub sij hawm ERW yeeb nkab vuam, cua sov yog tsim thaum tam sim no ntws los ntawm kev sib cuag ntawm qhov chaw vuam. Nws heats ob lub npoo ntawm cov hlau mus rau qhov chaw uas ib tug ntug tuaj yeem tsim ib daim ntawv cog lus. Nyob rau tib lub sijhawm, nyob rau hauv qhov kev txiav txim ntawm kev sib xyaw ua ke, cov npoo ntawm lub raj dawb paug yaj thiab nyem ua ke.
Feem ntau ERW yeeb nkab siab tshaj OD yog 24 "(609mm), rau qhov loj dua cov yeeb nkab yuav raug tsim hauv SAW.
Cov kav dej zoo li cas (tus qauv) tuaj yeem ua hauv ERW cov txheej txheem?
Muaj ntau cov kav dej tuaj yeem tsim los ntawm ERW txheej txheem. Ntawm no hauv qab no peb sau cov qauv feem ntau hauv cov kav dej.
Carbon steel yeeb nkab hauv ERW
ASTM A53 Qib A thiab B (thiab Galvanized)
ASTM A252 Pipeline Tube
ASTM A500 Cov qauv tubing
ASTM A134 thiab ASTM A135 yeeb nkab
EN 10219 S275, S355 yeeb nkab
Stainless hlau ERW yeeb nkab / yeeb nkab qauv thiab specifications
ASTM A269 stainless hlau yeeb nkab
ASTM A270 kev nyab xeeb tubing
ASTM A312 Stainless hlau yeeb nkab
ASTM A790 ferritic / austenitic / duplex stainless yeeb nkab
API ERW Kab Yeeb
API 5L B rau X70 PSL1 (PSL2 yuav tsum nyob rau hauv HFW txheej txheem)
API 5CT J55 / K55, N80 casing thiab tubing
ERW steel yeeb nkab thov thiab siv:
ERW steel yeeb nkab siv rau kev thauj cov roj thiab cov khoom ua kua xws li roj thiab roj, tuaj yeem ua tau raws li qhov yuav tsum tau ua kom qis thiab siab. Nyob rau hauv xyoo tas los no, nrog kev txhim kho ntawm ERW thev naus laus zis, ntau thiab ntau ERW steel yeeb nkab siv hauv cov roj thiab roj, kev lag luam tsheb thiab lwm yam.
Qhov zoo ntawm ERW yeeb nkab:
High efficiency, tsis tshua muaj nqi, khoom txuag, yooj yim automation.
