Khoom siv tsis sib haum: Tsawg-plasticity weathering steel qib (piv txwv li, tuab Q355NH daim hlau Ntau dua lossis sib npaug li 12 hli yam tsis muaj kev kho cua sov kom zoo) muaj lub zog siab tab sis tsis zoo ductility, ua rau lawv muaj nkig tawg thaum khoov ntawm me me radii.
Kev khoov tsis raug: Khoov vojvoog me dua qhov tsawg kawg nkaus yuav tsum tau (feem ntauNtau dua lossis sib npaug rau 3 × phaj thicknessrau huab cua steel) yuav ua rau muaj kev ntxhov siab ntau dhau ntawm qhov khoov, ua rau tawg. Txias dabtsi yog khoov hauv qis- qhov kub thiab txias (tsawg dua lossis sib npaug li -10 degree) kuj ua rau muaj kev pheej hmoo tawg vim txo cov khoom siv tawv.
Cov npoo tsis ua tiav: Txiav burrs lossis micro- tawg ntawm cov hlau phaj npoo ua raws li cov ntsiab lus kev ntxhov siab, nthuav mus rau hauv cov kab nrib pleb loj dua thaum khoov.
Xaiv cov qib tsim nyog thiab tuab: Xaiv Q235NH (zoo dua plasticity rau lub teeb-load corridors) los yog cua sov-kho Q355NH (zoo dua toughness) rau dabtsi yog khoov. Opt rau daim hlau Tsawg dua los yog sib npaug li 8 hli rau txoj kev khoov; siv cov phaj tuab tsuas yog rau loj - vojvoog khoov.
Optimize txoj kev khoov: Txais ib lub vojvoog khoovNtau tshaj los yog sib npaug rau 3-5 × phaj thickness(nce rau 5 × rau daim hlau tuab Ntau dua lossis sib npaug li 10mm). Rau qis- qhov kub thiab txias, preheat qhov chaw khoov rau 50-100℃los txhim kho ductility.
Ua ntej- khoov ntug: Polish txiav npoo nrog 200-400 mesh sandpaper kom tshem tawm burrs thiab micro- tawg, thiab tsis txhob khoov raws cov hlau phaj dov kev taw qhia kom txo tau anisotropic cracking.
