ERW (Electric Resistance Welded) thiab LSAW (Longitudinal Submerged Arc Welded) kav yog ob hom welded kav siv nyob rau hauv ntau yam industries rau ntau yam kev siv.
Qhov sib txawv tseem ceeb ntawm ERW thiab LSAW kav yog lawv txoj kev tsim. ERW cov kav dej yog tsim los ntawm dov ib txoj hlua ntawm cov hlau rau hauv cov duab cylindrical thiab tom qab ntawd vuam cov npoo ua ke siv hluav taws xob tiv thaiv vuam. LSAW kav, ntawm qhov tod tes, yog tsim los ntawm kev tsim cov hlau phaj rau hauv cov duab cylindrical thiab tom qab ntawd vuam cov npoo ua ke siv submerged arc vuam.
Cov kav dej ERW feem ntau yog siv rau cov ntawv siv hluav taws xob tsawg xws li cov kav dej, qhov LSAW kav yog siv rau cov ntawv siv siab xws li cov kav dej thiab roj. LSAW cov kav dej kuj tseem tuaj yeem nqa cov kab loj dua thiab cov kua dej ntau dua li cov kav dej ERW.
Hais txog tus nqi, ERW cov kav dej feem ntau pheej yig dua li LSAW kav vim txoj kev tsim khoom yooj yim dua. Txawm li cas los xij, LSAW cov kav dej muaj kev ntseeg tau zoo dua thiab ruaj khov vim yog cov phab ntsa tuab thiab muaj zog vuam.
Zuag qhia tag nrho, ob qho tib si ERW thiab LSAW kav dej muaj lawv tus kheej qhov zoo thiab kev txwv, thiab kev xaiv ntawm ob yog nyob ntawm cov kev xav tau tshwj xeeb ntawm daim ntawv thov.
