Txoj kev vuam ntawm ERW cov kav dej thiab cov kav dej arc welded yog qhov sib txawv. Txoj kev muab tub lim-dawb hlau siab vuam txoj kev yog siv. Lub weld seam tsis tau ntim nrog lwm yam khoom. Nws tso siab rau cov nyhuv ntawm daim tawv nqaij thiab qhov sib thooj ntawm cov high-frequency tam sim no kom instantly sov lub phaj ntug rau vuam kub. Extruded los ntawm nyiaj, lub forged qauv ntawm lub weld yog tsim. Cov kav hlau zoo siab xav tau kev kho cua sov hauv online lossis offline ntawm cov welds los kho cov qauv ntawm qhov chaw vuam. Cov welds ntawm high-quality ERW welded kav yuav ncav cuag tib theem toughness raws li cov khoom siv hauv paus, uas tsis tuaj yeem ua tiav los ntawm cov txheej txheem faus fox welding.
Submerged arc vuam (SAW) yog hom electrofusion vuam (EFW). Nws yog cov txheej txheem uas sib txuas cov hlau los ntawm cua sov cov hlau ntawm ib lossis ntau dua cov khoom siv hluav taws xob thiab cov khoom ua haujlwm. Lub arc ua rau cov hlau sib txuas nrog cov muab tub lim. Cov khoom siv vuam yog yaj tag, tsis tas yuav tsum muaj lub siab, thiab cov hlau muab tub lim los ntawm electrode nkaus.
Gas fusion welding (GMAW)-Electric fusion welding (EFW), cov txheej txheem no zoo ib yam li submerged fox welding, tab sis nws cov kev tiv thaiv los ntawm cov roj inert, thiab cov nyhuv yuav zoo dua.
