Cov khoom siv roj pav ca tsis muaj cov khoom siv dag zog uas tsis muaj cov khoom siv xws li Q235A, tab sis thaum muaj kev mob siab, tab sis tsis siab, lawv tuaj yeem dov nrog Q235A tuab khoom kom tau raws li qhov yuav tsum tau muaj. Kev ua haujlwm ntawm lub caij nplooj ntoos hlav caij nplooj ntoos zeeg yog feem ntau 65 Mn. 70 # los yog S50CM-S70CM manufactured los ntawm kev kho cua kub (Ceeb toom: Txaus siab + npau taws).
Rivets thiab pins feem ntau yog ua los ntawm cov khoom siv tib yam li cov ntsuas, tab sis qee qhov rivets tsis dhau kuj, thiab ib txhia yuav tsum tau HRB60 los yog tsawg dua. Feem ntau, cov khoom siv coj los ua ib ce yog HRB70-80. Yog li, qee qhov ntawm lawv yuav tsum tau ua kom tau raws li cov kev cai tswjfwm.
Kev nplhaib rau tus kheej yog feem ntau ntawm cov ntaub ntawv xws li C1018 C1020 C1022. Txawm li cas los xij, qee tus neeg lag luam hauv domestic tau siv Q235A nrog 18 # 15 # 20 # txo nqi los ntawm kev txiav cov kev fab. Tom qab ntawd ces qhov saum npoo yog qhov ua kom tiav txoj haujlwm. Lub siab tawv ntawm lub plawv tsis tau raws li qhov yuav tsum tau thiab yog yooj yim tawg.
Cov ciav hlau tshwj xeeb uas siv rau kev siv vuam, cov hlua caj dab thiab cov vuam siv feem ntau tsis tas yuav khoom. Yog hais tias cov neeg siv khoom siv qhov chaw welding, lawv yuav tsum siv cov hlau tsis tshev. Yog hais tias lawv yuav tsum nce lub zog, lawv tuaj yeem siv qee yam qis. Cov pa roj carbon monoxide muaj cov ntsiab lus ntau dua ntawm Mn.
Thaum tus qhua qhia tias qee yam khoom siv yuav tsum tau siv, thiab lub tuam txhab tsis muaj cov khoom siv rau lub sijhawm, lossis yog tias cov khoom siv tsis tau yooj yim nyob rau hauv kev ua lag luam, nws muaj peev xwm nkag siab lub hom phiaj ntawm tus neeg siv khoom tshwj xeeb ntsia hlau thiab ua raws li cov kev ua tiav kev ua tiav. Tus qhua tau sau ib daim ntawv thov kom muab cov ntaub ntawv hloov chaw. Qee cov neeg muas zaub tsis muaj kev txawj ntse tsis hais txog kev tshwj xeeb kev sib tw, thiab kev xaiv ntawm cov ntaub ntawv yuav tsis yog qhov zoo tshaj plaws. Peb ua tshwj xeeb hauv kev tsim tshwjxeeb rau cov tuam txhab ua lag luam uas tuaj yeem muab cov tswv yim zoo dua thiab ua tau txiaj ntsig. Yeej-yeej.
Qhov tseeb, cov ntaub ntawv tshwj xeeb cov ntaub cuav yuav tsum them rau ntau tshaj qhov no, piv txwv li, cov ntaub ntawv yuav tsum tau muab pov tseg ua ntej, siv cov khoom xeb xaim siv los ua qee cov hlua khi xov los yog cov ciaj ciam hlau tshwj xeeb rau lub ntsej muag, tsis yog siv los ua polishing taub hau