Qhov kev ntxhov siab seem ntawm cov yeeb nkab LSAW feem ntau yog tshwm sim los ntawm kev txias tsis sib npaug. Kev ntxhov siab seem yog qhov kev ntxhov siab sab hauv theem sib npaug tsis muaj lub zog sab nraud. Qhov kev ntxhov siab seem no muaj nyob rau hauv cov seem kub ntawm ntau ntu. Qhov loj dua qhov loj ntawm cov hlau seem dav dav, qhov kev ntxhov siab seem ntau dua.
Txawm hais tias qhov kev ntxhov siab seem yog qhov sib npaug ntawm tus kheej, nws tseem muaj qee qhov cuam tshuam rau kev ua haujlwm ntawm cov hlau hauv qab lub zog sab nraud. Piv txwv li, nws yuav muaj cov teebmeem tsis zoo rau kev hloov pauv, kev ruaj khov thiab kev tiv taus qaug zog. Tom qab vuam, cov khoom tsis yog hlau hauv cov yeeb nkab LSAW raug nias rau hauv cov ntawv nyias, ua rau muaj lamination. Tom qab ntawd lamination ua rau qhov kev ua tau zoo ntawm tensile ntawm cov yeeb nkab LSAW raws li qhov tuab, thiab kev rhuav tshem ntawm cov txheej txheem yuav tshwm sim thaum lub vuam ntswj. Qhov kev nyuaj siab hauv zos uas tshwm sim los ntawm kev ntswj vuam feem ntau yog ntau zaus ntawm qhov kev ntxhov siab ntawm cov ntsiab lus tawm, uas loj dua li qhov tshwm sim los ntawm kev thauj khoom. Tsis tas li ntawd, cov yeeb nkab LSAW yuav tsis zam tsis muaj ntau T-welds, yog li qhov muaj feem yuav muaj qhov tsis zoo ntawm kev vuam tau zoo dua. Ntxiv mus, qhov kev ntxhov siab seem ntawm kev vuam ntawm T-weld yog loj, thiab cov hlau vuam feem ntau nyob rau hauv lub xeev ntawm kev ntxhov siab peb-seem, uas ua rau muaj qhov tshwm sim ntawm kev tawg.
Cov yeeb nkab uas muab kauv rau hauv qab dej uas muab kauv rau hauv qab dej uas muab kauv rau hauv qab dej tau muab faib ua ib txoj kab kauv, thiab cov kauv ntev heev. Tshwj xeeb tshaj yog thaum muab kauv rau hauv qab dej uas muaj zog, cov kauv yuav tawm ntawm qhov chaw ua ntej txias, uas yooj yim ua rau muaj cov kab tawg kub ntawm cov kauv. Qhov kev taw qhia ntawm qhov tawg yog sib luag nrog cov kauv thiab tsim ib lub kaum sab xis nrog rau txoj kab ntawm cov yeeb nkab hlau, feem ntau, lub kaum sab xis yog nruab nrab ntawm 30-70 °. Lub kaum sab xis no tsuas yog sib xws nrog lub kaum sab xis ntawm qhov tsis ua haujlwm, yog li nws cov khoom khoov, tensile, compressive thiab anti-twist tsis zoo li cov yeeb nkab LSAW. Tib lub sijhawm, vim muaj kev txwv ntawm txoj haujlwm ntawm kev muab kauv, lub rooj zaum thiab cov kab ntawm cov kauv cuam tshuam rau qhov zoo li cas. Yog li ntawd, NDT ntawm cov yeeb nkab SSAW yuav tsum tau ua kom muaj zog kom ntseeg tau tias qhov zoo ntawm kev muab kauv, txwv tsis pub cov yeeb nkab SSAW yuav tsum tsis txhob siv rau hauv cov sijhawm tseem ceeb ntawm cov qauv hlau.
Lub sijhawm tshaj tawm: Lub Xya Hli-13-2022