Steel grating muaj qhov zoo ntawm kev txuag steel, corrosion kuj, kev tsim kho ceev, zoo huv si, tsis muaj plam, cua, tsis muaj dents, tsis muaj dej tsub zuj zuj, tsis muaj plua plav, tsis tu, thiab kev pab cuam lub neej ntawm ntau tshaj 30 xyoo. Nws yog siv ntau dua los ntawm kev tsim kho chav tsev. Qhov saum npoo ntawm cov hlau grating yog kho, thiab tsuas yog tom qab qee qhov kev kho tshwj xeeb tuaj yeem ua nws lub neej kev pabcuam txuas ntxiv. Kev siv cov xwm txheej ntawm steel grating nyob rau hauv kev lag luam kev lag luam feem ntau yog qhib cua los yog nyob rau hauv cov chaw nrog atmospheric thiab nruab nrab corrosion. Yog li ntawd, kev kho deg ntawm steel grating yog qhov tseem ceeb heev rau kev pab cuam lub neej ntawm steel grating. Cov hauv qab no qhia ntau yam kev kho saum npoo ntawm steel grating.
(1) Kub-dip galvanizing: Kub-dip galvanizing yog txhawm rau txhawm rau xeb tshem tawm cov hlau grating nyob rau hauv qhov kub-kub molten zinc kua ntawm li 600 ℃, kom cov zinc txheej txuas rau saum npoo ntawm cov hlau grating. Lub thickness ntawm zinc txheej yuav tsum tsis txhob tsawg tshaj li 65um rau nyias daim hlau hauv qab 5 hli, thiab tsis tsawg tshaj li 86um rau daim hlau tuab. Li no ua tiav lub hom phiaj ntawm kev tiv thaiv corrosion. Qhov zoo ntawm cov qauv no yog ntev durability, high degree ntawm industrialization ntawm ntau lawm, thiab ruaj khov zoo. Yog li ntawd, nws yog dav siv nyob rau hauv sab nraum zoov steel grating tej yaam num uas yog heev corroded los ntawm huab cua thiab nyuaj rau tswj. Thawj kauj ruam ntawm kub-dip galvanizing yog pickling thiab xeb tshem tawm, ua raws li kev tu. Kev ua tsis tiav ntawm ob kauj ruam no yuav ua rau muaj kev phom sij rau kev tiv thaiv corrosion. Yog li ntawd, lawv yuav tsum tau ua tib zoo saib xyuas.
(2) Kub-txhaj tshuaj txhuas (zinc) txheej txheej: Qhov no yog txoj kev tiv thaiv corrosion mus ntev nrog tib yam kev tiv thaiv corrosion zoo li kub-dip galvanizing. Txoj kev tshwj xeeb yog thawj zaug sandblast lub npoo ntawm cov hlau grating kom tshem tawm cov xeb, kom lub ntsej muag nthuav tawm cov xim hlau thiab roughens. Tom qab ntawd siv cov nplaim hluav taws xob acetylene-oxygen kom yaj cov xaim tsis tu ncua xaim txhuas (zinc) xaim, thiab tshuab nws mus rau saum npoo ntawm cov hlau grating nrog compressed cua los ua ib tug honeycomb aluminium (zinc) spray txheej (thickness ntawm li 80um ~ 100um). Thaum kawg, sau cov capillaries nrog cov coatings xws li cyclopentane resin lossis urethane roj hmab xim los ua cov txheej txheem sib xyaw. Qhov zoo ntawm cov txheej txheem no yog tias nws muaj zog yoog raws qhov loj ntawm cov hlau grating, thiab cov duab thiab qhov loj ntawm steel grating yuav luag tsis muaj kev txwv. Lwm qhov zoo dua yog tias cov thermal cuam tshuam ntawm cov txheej txheem no yog hauv zos thiab txwv, yog li nws yuav tsis ua rau thermal deformation. Piv nrog kub-dip galvanizing ntawm steel grating, txoj kev no muaj qis dua ntawm industrialization, thiab kev siv zog ntawm sandblasting thiab txhuas (zinc) blasting yog siab. Qhov zoo kuj tau yooj yim cuam tshuam los ntawm kev hloov mus los ntawm tus neeg teb xov tooj.
(3) Txheej txheej: Qhov kev tiv thaiv corrosion ntawm txheej txheej feem ntau tsis zoo li txoj kev siv lub sij hawm ntev corrosion. Nws muaj tus nqi qis ib zaug, tab sis tus nqi tu yog siab thaum siv sab nraum zoov. Thawj kauj ruam ntawm txheej txheej yog xeb tshem tawm. Cov txheej txheej zoo cia siab rau kev tshem tawm xeb. Yog li ntawd, cov txheej txheem siab feem ntau siv cov xuab zeb blasting thiab tua blasting kom tshem tawm xeb, nthuav tawm cov luster ntawm cov hlau, thiab tshem tawm tag nrho cov xeb thiab cov roj. Qhov kev xaiv ntawm txheej yuav tsum coj mus rau hauv tus account ib puag ncig ib puag ncig. Cov txheej txheej sib txawv muaj qhov sib txawv rau qhov sib txawv corrosion. Txheej txheej feem ntau muab faib ua primers (layers) thiab topcoats (txheej txheem). Primers muaj cov hmoov ntau dua thiab cov khoom siv qis dua. Zaj duab xis yog ntxhib, muaj zog adhesion rau hlau, thiab muaj kev sib raug zoo nrog topcoats. Topcoats muaj ntau cov ntaub ntawv hauv paus, muaj cov yeeb yaj kiab glossy, tuaj yeem tiv thaiv primers los ntawm atmospheric corrosion, thiab tuaj yeem tiv taus huab cua. Muaj teeb meem ntawm kev sib raug zoo ntawm cov txheej txheem sib txawv. Thaum xaiv cov txheej txheem sib txawv ua ntej thiab tom qab, xyuam xim rau lawv cov kev sib raug zoo. Cov txheej txheej yuav tsum muaj qhov kub thiab txias (nruab nrab ntawm 5 ~ 38 ℃) thiab cov av noo (cov av noo tsis tshaj 85%). Txheej txheej tsim ib puag ncig yuav tsum tsis tshua muaj plua plav thiab yuav tsum tsis muaj condensation ntawm cov khoom siv. Nws yuav tsum tsis txhob raug los nag hauv 4 teev tom qab txheej txheej. Cov txheej yog feem ntau siv 4 ~ 5 zaug. Tag nrho cov tuab ntawm cov xim qhuav yog 150um rau cov haujlwm sab nraum zoov thiab 125um rau cov haujlwm sab hauv, nrog rau qhov sib txawv ntawm 25um.
Post lub sij hawm: Jun-05-2024