Qhov sib txawv ntawm ERW Thiab LSAW Steel Yeeb Nkab

Qhov sib txawv ntawm ERW thiab LSAW Steel Yeeb Nkab

Piv nrog submerged arc vuam, high-frequency resistance welded steel kav (ERW steel kav) tsis ntxiv cov khoom siv vuam thaum lub sij hawm ERW vuam txheej txheem. Lub weld tsim tsis raug kub yaj lub xeev, tab sis cov hlau weld undergoes tus txheej txheem recrystallization. Lub resulting weld yog li ntawd muaj tib yam tshuaj muaj pes tsawg leeg raws li lub hauv paus hlau. Tom qab cov yeeb nkab steel yog welded, nws yuav tsum tau annealed los ua kom txias ua hauj lwm nrog kev ntxhov siab thiab vuam sab hauv kev ntxhov siab. Yog li ntawd, cov khoom siv dav dav ntawm longitudinal submerged arc welded steel kav yog zoo dua.

Qhov ncaj seam submerged arc welded steel yeeb nkab (UOE) siv cov txheej txheem tom qab-weld txias nthuav dav kom nthuav dav. Yog li ntawd, lub geometric qhov ntev ntawm cov ncaj seam submerged arc welded steel yeeb nkab yog qhov tseeb dua. Thaum siv ncaj seam submerged arc welded steel kav, qhov sib txuam zoo yog qhov zoo thiab qhov vuam zoo yog lav. Tshem tawm qee qhov kev ntxhov siab sab hauv. Tsis tas li ntawd, ncaj seam submerged arc welded steel kav siv ntau txoj hlua vuam (peb-xaim, plaub-xaim). Cov txheej txheem vuam no ua rau cov khoom siv hluav taws xob me me thiab muaj kev cuam tshuam me me rau thaj tsam kub-tshuaj lom ntawm lub hauv paus hlau. Tom qab ntau cov hlau vuam, thawj vuam hlau tuaj yeem tshem tawm cov kev ntxhov siab thaum lub sij hawm vuam txheej txheem, yog li txhim kho cov khoom siv ntawm cov yeeb nkab steel. Cov khoom siv hauv paus tuaj yeem paub txog 100% ultrasonic qhov tsis pom ntawm cov hlau phaj ib los ntawm ib qho kom tau raws li cov kev xav tau ntawm cov kav dej siab rau cov khoom siv hauv paus. Txawm li cas los xij, txawm hais tias tag nrho cov kev ua tau zoo ntawm longitudinal submerged arc welded steel kav yog zoo dua li ntawm lwm cov yeeb nkab steel, nws cov nqi siab txwv tsis pub cov neeg siv nyiaj nruj.