Hauv kev tsim kho hluav taws xob, cov tais cable yog cov khoom tseem ceeb uas txhawb nqa thiab tiv thaiv cov cables. Lawv durability thiab kev ntseeg siab yog qhov tseem ceeb. Txhawm rau kom ntseeg tau tias cov tais kab hluav taws xob ua tau zoo nyob rau lub sijhawm ntev nyob rau hauv kev sib tw thiab kev hloov pauv, nws yog ib qho tseem ceeb tshwj xeeb uas yuav tsum xaiv txoj kev kho kom zoo thiab txheej txheej txheej. ISO 12944 yog li tsis muaj nuj nqis hauv kev qhia txog kev xaiv cov kev kho deg rau cov tais cable.
01 ISO 12944 tus qauv yog dab tsi
Tus txheej txheem ISO 12944 - yog tus txheej txheem thoob ntiaj teb hais txog kev tiv thaiv cov txheej txheem steel thiab cov khoom hlau tiv thaiv corrosion. Txij li thaum nws tshaj tawm, nws tau maj mam dhau los ua tus qauv tseem ceeb tshaj plaws thiab lees paub rau cov kws tshaj lij los tiv thaiv corrosion hauv ntau lub teb chaws thiab cheeb tsam. Tuam Tshoj Standard GB / T 30790 Kev Tiv Thaiv Txheej Txheem rau Steel Structures yog raws li ISO 12944. ISO 12944 npog kev faib tawm ntawm qhov chaw corrosive, xaiv cov txheej txheem txheej txheej, txheej txheej thov txheej txheem, tshuaj xyuas thiab kev saib xyuas, muab kev qhia dav dav rau kev tsim cov kev tiv thaiv corrosion rau steel qauv. Thaum xaiv cov tais cable, ua raws li ISO 12944 tus qauv hauv siab tuaj yeem ua kom ntseeg tau tias cov khoom xaiv yuav ua tau raws li kev ua haujlwm sib txawv thiab cov kev xav tau.
02 Qhov tseem ceeb ntawm kev kho deg ntawm cov tais cable
Nyob rau hauv ib puag ncig sib txawv, cov tais yuav raug rau ntau qib ntawm kev pheej hmoo corrosion:
Ib puag ncig sab nraud: Kev raug tshav ntev ntev thiab los nag tuaj yeem ua rau muaj kev laus, tawg thiab corrosion ntawm cov khoom siv tais.
Kev lag luam ib puag ncig: Acid thiab alkaline gases, tshuaj lom neeg thiab cov khoom tuaj yeem ua kom muaj zog corrosion ntawm cov tais.
Humid Ib puag ncig: Cov av noo siab tuaj yeem ua rau saum npoo ntawm cov tais rau xeb, cuam tshuam rau lawv cov tsos thiab cov khoom siv kho tshuab.
Cov xwm txheej huab cua tsis zoo: qhov kub thiab qis qis, cua txias thiab lwm yam huab cua huab cua tuaj yeem ua rau cov khoom siv hauv lub tais rau warp thiab tawg.
Yog li ntawd, nws yog ib qho tsim nyog los ua kom muaj kev tiv thaiv corrosion ntawm qhov chaw ntawm cov tais. Kev kho qhov chaw tsim nyog tuaj yeem txhim kho lawv cov kev tiv thaiv corrosion, cov khoom siv kho tshuab thiab txuas ntxiv lawv lub neej kev pab cuam. Hauv kev siv tiag tiag, cov txheej txheem kho kom zoo yuav tsum raug xaiv raws li ib puag ncig tshwj xeeb thiab cov kev xav tau los xyuas kom meej qhov kev ua haujlwm ruaj khov thiab ua haujlwm ntev ntawm cov tais cable.
03 Yuav ua li cas xaiv qhov chaw kho mob ntawm cov tais raws li ISO 12944
Kev txiav txim siab ntawm ib puag ncig ib puag ncig: Ua ntej xaiv qhov kev kho saum npoo rau cov tais, nws yuav tsum nkag siab tias qib ntawm corrosion nyob rau hauv ib puag ncig engineering sib txawv tuaj yeem sib txawv. Ntu 2 - ntawm ISO 12944 kom meej meej faib cov hom ntawm ib puag ncig.
Kev faib tawm ntawm atmospheric corrosives thiab raug ib puag ncig ib puag ncig raws li ISO12944
Kev txhais ntawm durability ntawm kev tiv thaiv txheej: ISO 12944 tus qauv txhais tau plaub lub sij hawm durability. (Faj seeb: Durability tsis yog "lub sij hawm lav" tab sis qhov kwv yees ntawm lub sij hawm tso cai rau kev tiv thaiv corrosion, thiab tsis muaj cov kev cai uas piav qhia txog kev sib raug zoo ntawm lub sijhawm no.)
Tsawg (L): tsis pub tshaj 7 xyoo
Nruab nrab (M): 7-15 xyoo
Siab (H): 15-25 xyoo
Siab heev (VH): ntau tshaj 25 xyoo
Xaiv cov txheej txheem txheej tsim nyog rau qhov project: Cov kev kho deg sib txawv thiab cov ntaub ntawv muaj qhov sib txawv corrosion kuj. Tam sim no, Vichnet tais cov ntaub ntawv suav nrog carbon steel thiab stainless hlau, thiab txoj kev kho saum npoo muaj xws li galvanizing, kub-dip galvanizing, hmoov txheej, zinc-nickel composites thiab lwm yam. Hauv qab no yog ib lub rooj ntawm kev siv ntau txoj hauv kev los kho qhov chaw ntawm cov tais nyob ntawm qhov chaw corrosive:
Cov tuam txhab tuaj yeem xaiv qhov tsim nyog los tiv thaiv corrosion saum npoo los yog cov khoom siv raws li qib ntawm corrosion nyob rau hauv ib puag ncig engineered, kev pab cuam lub neej thiab nyiaj txiag.
Coating Performance Testing: Feem ntau, cov qib corrosion thiab durability ntawm ib txheej tuaj yeem kwv yees raws li kev ua haujlwm thiab kev tsim (xav tau) kev pab cuam lub neej, thiab tom qab ntawd kev ua haujlwm ntawm cov txheej txheem tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm tus qauv. Ib txoj hauv kev tshawb nrhiav kev txhim kho corrosion yog nruab nrab ntsev tsuag, uas ntsuas cov khoom muaj peev xwm tiv thaiv kev puas tsuaj corrosion. Cov kua ntsev uas muaj (5±{1}}.5)% sodium chloride, nrog pH ntawm 6.5-7.2, yog txau rau hauv chav kuaj tshwj xeeb (cov khoom siv plating). Ntsev pos yog tso rau ntawm cov qauv kuaj thiab lawv qhov chaw raug pom rau corrosion tom qab ib lub sijhawm. Hauv qab no yog cov ntawv xeem rau Vichnet ntsev tsuag cov tais uas ua tau raws li tus qauv.
Tsim nyog ib puag ncig tej yam kev mob rau ntau hom kev kho deg.
Yog li, peb tuaj yeem kos cov lus xaus hauv qab no:
Galvanic zinc plating muaj qhov tsis muaj zog tiv thaiv corrosion thiab zoo dua rau siv rau hauv qhov chaw qhuav sab hauv;
Cov txheej txheem kub-dip galvanizing muab lub neej ntev kev pab cuam thiab qib siab ntawm kev tiv thaiv corrosion, haum rau siv hauv kev cob qhia ntau lawm nrog kub kub thiab qee qhov huab cua phem lossis hauv cov nroj tsuag tshuaj lom neeg;
hmoov coated tais muab ib tug nplua nuj xim ntau yam rau niaj hnub cable tswj systems, muaj tsawg theem ntawm corrosion kuj thiab yog tsim nyog rau siv nyob rau hauv qhuav ib puag ncig xws li cov ntaub ntawv center server chav;
Zinc-nickel plating yog ib qho tshwj xeeb ntawm kev kho deg tsim los ntawm Vichnet uas muaj kev tiv thaiv corrosion thiab hnav tsis kam, haum rau siv rau txhua yam tab sis tsis tshua muaj corrosive;
Stainless hlau muaj cov khoom zoo tiv thaiv corrosion, tab sis kim dua. Cov neeg siv tuaj yeem xaiv ntau hom stainless hlau nyob ntawm lawv cov kev xav tau corrosion.
Anti-corrosion kev kho mob ntawm qhov chaw ntawm steel phaj qauv tsis tsuas yog nyob ntawm tus yam ntxwv ntawm txoj kev kho nws tus kheej, tab sis kuj nyob rau hauv cov kev hloov nyob rau hauv ib puag ncig, txheej thickness, tu thiab tu. Cov txheej tuab ntawm Vichnet cov tais ua tau raws li cov qauv thiab tshaj cov uas tau muab los ntawm cov tuam txhab me me feem ntau, muab kev ua tau zoo dua.
