Tsis yog standard screwsxa mus rau cov ntsia hlau uas muaj kev tiv thaiv corrosion thiab tsis tshua muaj rusting hauv xov xwm xws li roj thiab dej. Qhov zoo ntawm cov ntsia hlau uas tsis yog tus qauv feem ntau yog nyob ntawm qhov yuav tsum tau ua ntawm specifications, mechanical zog, thiab defects. Siv dav hauv kev lag luam ntawm kev tiv thaiv ib puag ncig, cov khoom siv hluav taws xob, khoom noj khoom haus thiab khoom siv, cov khoom siv kho mob, thiab lwm yam. Thaum lub xauv qhov rooj tshwm sim thaum siv cov ntsia hlau uas tsis yog tus qauv, cov txheej txheem tuav hauv qab no tuaj yeem ua tau:
Xyuas kom tseeb xaiv cov ntsia hlau: Ua ntej siv, xyuas kom meej tias cov ntsia hlau ua tau raws li qhov yuav tsum tau ua ntawm cov cuab yeej ua haujlwm.
Them mloog mus rau qhov zoo ntawm cov ntsia hlau threads: Yog hais tias cov threads ntawm lubntsia hlauyog cov ntxhib los yog muaj av, xws li vuam slag lossis hlau shavings sandwiched ntawm cov xov, nws yog ib qho yooj yim los ua kom xauv.
Tswj nruj nruj thiab ceev: Thaum zawm screws, quab yuam ntau dhau los yog ceev ceev ceev tuaj yeem ua rau cov ntsia hlau kub nce sai thiab ua rau lub xauv.
Ua tib zoo saib xyuas cov kev taw qhia ntawm cov tshuaj tiv thaiv quab yuam: Thaum zawm cov ntsia hlau, lub hau ntsia hlau yuav tsum tig ntsug thiab sib npaug ntawm qhov nruab nrab ntawm cov ntsia hlau kom tsis txhob tilting.
Sivwashers thiab caij nplooj ntoos hlav washers: Thaum siv cov ntsia hlau, txhim kho cov tshuab ntxhua khaub ncaws thiab lub caij nplooj ntoos hlav ntxhua khaub ncaws tuaj yeem tiv thaiv qhov teeb meem ntawm kev nruj dua.
Kuj tseem muaj qee yam uas yuav tsum tau them sai sai rau thaum xaiv cov khoom siv rau cov ntsia hlau tshwj xeeb:
Kev xaiv cov khoom siv rauflat ntxhua khaub ncaws: Rau cov tshuab ntxhua khaub ncaws tsis muaj kev ua haujlwm zoo, cov ntaub ntawv ntug xws li Q235A feem ntau tuaj yeem siv rau kev tsim khoom. Yog tias muaj qhov xav tau hardness tab sis nws tsis siab, tuab Q235A daim hlau tuaj yeem siv rau dov kom ua tiav qhov yuav tsum tau ua kom tawv.
Kev xaiv cov khoom siv raurivets thiab pins: Feem ntau tib yam li cov ntsia hlau, tab sis qee qhov rivets tsis tuaj yeem muaj qhov nyuaj dhau, thiab qee qhov tseem xav tau qhov hardness qis dua HRB60. Qhov nyuaj ntawm cov ntaub ntawv ib txwm yog feem ntau ntawm HRB70-80, yog li qee cov rivets yuav tsum tau muab tshem tawm kom ua tau raws li qhov yuav tsum tau ua.
Kev xaiv cov khoom siv rau cov ntsia hlau tshwj xeeb siv rau vuam: Feem ntau tsis muaj cov khoom tshwj xeeb uas yuav tsum tau ua rau arc vuam thiab roj vuam. Yog tias tus neeg siv khoom siv qhov chaw vuam, cov ntaub ntawv uas muaj cov pa roj carbon tsawg yuav tsum tau siv. Yog tias xav tau kom muaj zog ntxiv, qee cov khoom siv carbon tsawg nrog cov ntsiab lus manganese ntau dua tuaj yeem siv.
Thaum tus neeg siv khoom qhia txog kev siv cov khoom siv tshwj xeeb, tab sis lub tuam txhab tsis muaj ib ntus lossis nws nyuaj rau kev yuav cov khoom hauv khw, nws muaj peev xwm nkag siab txog cov neeg siv khoom xav tau rau kev siv tshwj xeeb screws thiab xa ib sau ntawv thov rau kev hloov khoom siv nyob rau hauv qhov chaw ntawm kev sib ntsib cov khoom siv kho tshuab. Qee cov neeg yuav khoom yuav tsis yog tus kws tshaj lij txog tshwj xeebntsia hlau, thiab xaiv cov khoom siv yuav tsis zoo tshaj plaws.
Los ntawm kev tuav cov teeb meem xauv kom raug thiab ua tib zoo saib xyuas kev siv cov ntsia hlau tshwj xeeb, qhov ua tau zoo thiab qhov zoo ntawm cov ntsia hlau tsis zoo tuaj yeem txhim kho.
