ERW (Electric Resistance Welded) & LSAW (Longitudinal Submerged Arc Vuam)
Lub ntsiab sib txawv ntawm ERW thiab LSAW kav yog nyob rau hauv txoj kev uas lawv yog fabricated. ERW cov kav dej yog tsim los ntawm dov ib daim ntawv tiaj tus hlau rau hauv cov duab cylindrical thiab tom qab ntawd vuam cov seam. Cov txheej txheem no yog ua tiav los ntawm kev hla cov hluav taws xob ntau zaus los ntawm cov npoo ntawm cov hlau nplaum. Ntawm qhov tod tes, LSAW cov kav dej yog tsim los ntawm kev siv cov txheej txheem vuam tshwj xeeb uas siv cov welder hnyav siv los txuas cov npoo ntawm cov hlau phaj ua ke.
ERW kav dej feem ntau yog me me thiab nyias phab ntsa thickness piv rau LSAW kav. Lawv feem ntau yog siv los thauj cov kua dej, roj av, thiab chav dej hauv kev lag luam xws li roj thiab roj, kev tsim kho, thiab kav dej. ERW cov kav dej kuj tseem siv tau rau hauv cov khoom siv xws li scaffolding thiab fencing.
LSAW cov kav dej yog siv rau txoj kab uas hla loj dua thiab cov phab ntsa tuab tuab xws li cov kav dej thiab cov roj, cov chaw ua dej, thiab cov chaw kho dej. LSAW cov kav dej kuj tuaj yeem siv rau kev tsim qauv xws li kev tsim kho choj thiab hauv kev tsim cov tsev loj.ERW cov kav dej feem ntau yog me dua thiab nyias dua thaum LSAW kav yog siv rau cov ntawv loj thiab tuab dua.
1. Cov txheej txheem tsim khoom: ERW kav dej yog tsim los ntawm dov hlau thiab vuam nws longitudinally. Ntawm qhov tod tes, LSAW cov kav dej yog tsim los ntawm kev tsim cov kub dov steel phaj rau hauv cov duab cylindrical thiab vuam los ntawm sab hauv thiab sab nraud.
2. Qhov ntau thiab tsawg: ERW kav dej feem ntau muaj nyob rau hauv me me diameters, xws li ½ "mus rau 24". Nyob rau hauv sib piv, LSAW kav yuav ua tau nyob rau hauv loj diameters, xws li los ntawm 16 "mus rau 56", ua rau nws ib tug ntau siv tau kev xaiv rau loj-scale daim ntaub ntawv.
3. Kev Tswjhwm Zoo: Lwm qhov yuav tsum tau xav txog yog kev tswj xyuas kev ua haujlwm zoo thaum lub sijhawm tsim khoom. ERW cov kav dej yuav tsum tau soj ntsuam nruj thiab saib xyuas thaum lub sijhawm vuam kom ntseeg tau tias cov khoom siv vuam tsim cov cua sov tsim nyog thiab siab rau kev ua tiav vuam. LSAW kav, ntawm qhov tod tes, yuav tsum muaj ntau txoj kev tswj xyuas zoo, xws li kev kuaj ultrasonic thiab x-ray tshuaj xyuas, kom ntseeg tau tias cov vuam tsis sib xws thiab tsis muaj qhov tsis xws luag.
