Kauv steel kav yog tsim los ntawm kev sib sau sawb hlau los yog coiled phaj rau hauv ib tug kauv puab thiab welding lub puab thiab sab seams siv ob-sided submerged arc vuam. Vim yog cov laj thawj hauv qab no, lawv tau siv dav hauv dej, hluav taws xob, tshuaj lom neeg, thiab lwm yam lag luam: Los ntawm kev kho lub kaum sab xis yooj yim, ntau txoj kab uas hla ntawm cov kav hlau steel tuaj yeem tsim los ntawm tib qhov dav ntawm sawb hlau, ua kom yooj yim hloov.
Raws li lawv tsis tu ncua tsim nyob rau hauv ib tug kauv zoo, qhov ntev ntev ntawm kauv kav yog tsis constrained, tso cai rau customization. Cov kauv welds yog sib npaug sib npaug raws li tag nrho cov voj voog ntawm cov yeeb nkab, uas ua rau muaj qhov raug siab thiab lub zog. Tsis tas li ntawd, qhov yooj yim ntawm kev hloov pauv qhov ntev ua rau lawv haum rau me me-batch, ntau hom kev tsim cov kav dej.
Cov welds ntawm kauv steel kav ntev dua li cov kav dej ncaj nraim ntawm tib tus qauv. Nyob rau hauv tib lub phab ntsa tuab, kauv steel kav tuaj yeem tiv taus qhov siab tshaj plaws. Txawm li cas los xij, qhov tsis zoo ntawm kauv steel kav 'welds yog "oblique defect." Thaum lub sij hawm siv, qhov sib npaug ntawm qhov tsis xws luag ntev nyob rau hauv lub hauv paus ntsiab lus kev ntxhov siab (piv txwv li, axial kev taw qhia ntawm cov yeeb nkab) yog me dua ntawm cov kav dej ncaj seam. Tsis tas li ntawd, txij li cov yeeb nkab steel feem ntau yog dov steel phaj, nws nthuav tawm cov anisotropy tseem ceeb hauv kev cuam tshuam toughness, nrog rau CVN tus nqi raws li cov kev taw qhia dov mus txog peb zaug siab tshaj qhov perpendicular rau nws.
Txhawm rau ua kom tau raws li qhov xav tau ntawm kev tsim khoom niaj hnub no, kev cob qhia steel qauv tau tshwm sim. Piv nrog rau cov kev cob qhia thaum ntxov, steel qauv kev cob qhia muaj ntau yam zoo, nrog rau lub sij hawm luv luv, tus nqi qis, thiab kev ua tau zoo. Cov txheej txheem steel rhiav muaj xws li steel kem, kab teeb, foundations, ru tsev trusses, thiab ru tsev npog. Nyob rau hauv xyoo tas los no, steel kem tau maj mam hloov ntawm channel steel, uas tau txheeb xyuas qhov tsis zoo hauv kev tsim kho, mus rau cov kav hlau kav.
Kauv steel kav muaj ntau lub zog hauv kev cob qhia steel qauv. Lawv muaj zog yoog raws cov qauv, txhais tau hais tias cov kav dej ntawm txhua tus qauv tuaj yeem tsim tau. Lawv qhov ntev kuj tuaj yeem hloov kho, nrog qhov ntev tshaj plaws ncav cuag 30 meters. Ntxiv mus, kauv steel kav tuaj yeem tsim rau hauv cov ncej sib xyaw ua ke, muab kev ua tau zoo dua thiab cov txiaj ntsig zoo dua piv rau cov hlau channel.
