Raws li hom tshiab ntawm cov khoom, steel grating yog dav siv nyob rau hauv ntau yam teb, thiab kev kho deg ntawm kub -dip galvanizing ua rau cov hlau grating nrog super corrosion kuj. Yog li dab tsi yog cov cai tshwj xeeb rau kub -dip galvanizing ntawm steel grating?
1. Qhov kub-dip galvanized steel grating yuav tsum tau kho kom zoo nkauj kom huv si. Pickling tuaj yeem siv los ntxuav qhov chaw, tab sis yuav tsum tsis txhob noj ntau dhau. Rau cov roj saum npoo uas tsis tuaj yeem ntxuav tawm, xws li cov yeeb yaj kiab carbon, roj, xim, vuam slag, thiab lwm yam, nws yuav tsum tau muab tshem tawm ua ntej pickling.
2. Qhov saum npoo ntawm cov hlau grating yuav tsum tau qhuav ua ntej kub -dip galvanizing, thiab tsis muaj cov tshuaj aqueous lossis lwm yam dej noo yuav tsum nyob twj ywm.
3. Zinc da dej siv rau kub-dip galvanizing yuav tsum yog cov zinc molten, thiab tag nrho cov ntsiab lus ntawm impurities (tshwj tsis yog hlau thiab tin) hauv cov zinc molten yuav tsum tsis pub tshaj 1.5 feem pua ntawm tag nrho cov khoom.
4. Tom qab kub -dip galvanizing, qhov saum npoo ntawm cov hlau grating yuav tsum du, tsis muaj lumps, roughness thiab zinc pos, tsis tev, thiab tsis muaj residual tshuaj slag.
5. Thaum lub thickness ntawm lub loaded ca steel tsis tsawg tshaj li 5 hli, qhov hnyav ntawm qhov nruab nrab zinc txheej tom qab galvanizing yuav tsum tsis txhob tsawg tshaj li 610g / m2, thiab qhov nruab nrab thickness yuav tsum tsis txhob tsawg tshaj li 85um; Thaum lub thickness ntawm lub loaded ca steel yog tsawg tshaj li 5 hli, qhov hnyav ntawm nruab nrab zinc txheej tom qab galvanizing yuav tsum tsis txhob tsawg tshaj li 85um. Nws yog tsawg dua 460g / m2, thiab qhov nruab nrab thickness tsis tsawg tshaj li 65um; Qhov hnyav ntawm zinc txheej siv kev kho centrifugal yuav tsum tsis txhob tsawg dua 395g / m2, thiab qhov nruab nrab thickness tsis tsawg tshaj li 55um. Qhov zoo thiab yuav tsum tau tom qab galvanizing yuav tsum ua raws li cov kev cai ntawm GB / T 13912-2002.
6. Tom qab cov hlau grating kub -dip galvanized, nws yuav tsum tsis txhob muab sib sau ua ke thaum lub nto tseem nyob rau hauv ib tug kub thiab ntub dej. Tom qab cov hlau grating raug tshem tawm ntawm qhov kub -dip galvanized zinc tov, cov zinc ntau dhau yuav tsum tau muab pov tseg los ntawm centrifugation lossis blasted tam sim ntawd.
7. Tom qab kub-dip galvanizing, tag nrho cheeb tsam ntawm qhov ploj plating nto ntawm txhua steel grating yuav tsum tsis txhob ntau tshaj 0.5 feem pua ntawm tag nrho cov cheeb tsam, thiab cheeb tsam ntawm txhua plating nto yuav tsum tsis txhob tshaj 10m2. Yog tias qhov chaw plating uas ploj lawm loj dua li cov nqi teev saum toj no, cov hlau grating yuav tsum tau rov ua dua -plated.
8. Tom qab kub-dip galvanizing, yog tias muaj qhov dej ntws tawm, cov dej ntws tawm yuav tsum tau kho los ntawm thermal spraying zinc, txheej zinc-nplua nuj xim los yog melting zinc alloy. Rau cov txheej txheem tshwj xeeb, thov xa mus rau cov kev cai ntawm GB / T 13912-2002. Cov txheej txheem kho yuav tsum muaj peev xwm muab sacrificial anode tiv thaiv rau cov hlau thaum siv cov hlau grating. Ua ntej kho, oxide daim tawv nqaij thiab lwm yam av nyob rau hauv qhov chaw plating ploj lawm yuav tsum tau muab tshem tawm kom ntseeg tau tias qhov adhesion ntawm kev kho thiab substrate.
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