Dab tsi yog cov nquag siv anti - Cov yeeb nkab corrosion rau Astm A53 Grica Steel Yeeb Nkab?
Kev nquag ov - Cov yeeb nkab corrosating rau Astm A53 Gr.Qhov kev pleev xim loj, thiab tso cov pob txha hniav tawg. Kub - dip galvanizing yog qhov kev xaiv tau nyiaj ntau tshaj plaws, muab kev tiv thaiv cov xeb uas haum thiab haum rau ib puag ncig. Epoxy Txheej ci muaj cov adhesion zoo thiab yog qhov tsim nyog rau faus lossis hauv qab dej. Polyurethane txheej muaj huab cua - tiv taus thiab tsim nyog rau sab nraum zoov ib puag ncig raug rau UV Rays. Daim tawv nqaij tar enamel feem ntau yog siv rau cov kav dej hauv av thiab muab cov tshuaj ua tau zoo heev. Thaum xaiv txheej txheej, xav txog thaj chaw ib puag ncig kev xeb, pob nyiaj siv, thiab kev tsim kho.
Dab tsi yog tus qauv zinc tuab tuab rau galvanized Astm A53 Gr.a cov yeeb nkab steel?
Raws li cov AVTM A53 daim ntawv qhia tsawg kawg, qhov hnyav tsawg kawg ntawm qhov kub kub - dip galvanized txheej yog 610 g / m² (kwv yees li 85 microns). Rau cov chaw hnyav ib puag ncig (xws li thaj chaw ntug dej hiav txwv), zinc txheej tuab yuav nce mus rau 900 g / m² (kwv yees li 120 microns). Qhov zinc txheej tuab yuav ntsuas tau siv cov txheej txheem tuab sib nqus Yog hais tias lub zinc txheej tsis tau raws li tus qauv, cov yeeb nkab steel yog nquag mus rau xim liab, uas shortens nws lub neej pabcuam. Kev kho mob passivation yog qhov kev pom zoo tom qab galvanizing kom ncua kev tsim ntawm cov tshuaj dawb (cov khoom zinc corrosion).
Yuav ua li cas kho corroded antm A53 Graa cov yeeb nkab steel?
Before repair, the extent of corrosion should be assessed. Minor rust can be cleaned with a wire brush or sandblasting, followed by a re-coat of anti-rust paint. Localized severe corrosion (wall thickness loss >10%) can be reinforced with welded patching or carbon fiber composite materials. If the corrosion area is extensive (>30%), nws raug nquahu kom hloov tag nrho cov yeeb nkab. Tom qab kho, anti - kev kho corrosion, xws li kev thov ntawm epoxy zincer thiab Polyurethane Topcoat. Ntev - sij hawm saib yuav tsum muaj kev tshuaj xyuas thiab cov ntaub ntawv ntawm corrosion.
Yuav ua li cas thiaj li corrosion tsis kam ntawm Astm A53 Gr.a cov yeeb nkab steel nyob rau hauv cov acidic ib puag ncig raug txhim kho?
Hauv cov nroj tsuag acidic (xws li cov nroj tsuag acidic (xws li cov nroj tsuag tshuaj thiab cov pob tshuaj {{0} muaj cov roj thiab roj ib txwm muaj cov hlau tsis zoo thiab xav tau kev ntsuas ntxiv. Cov kev xaiv muaj xws li pp lossis ptfe), iav flake epoxy txheej, lossis kev tiv thaiv Cathodic. Rau cov corrosive corrosive, kho kom zoo dua rau cov hlau stainless (xws li muaj 304/316) lossis corrosion {{{ Kev tshuaj xyuas ph thiab cov nqi ua kom tsis tu ncua (los ntawm daim coupon lossis ntsuas ntsuas hluav taws xob) tuaj yeem muab lus ceeb toom ntxov.
Kuv tuaj yeem txuas lub neej ua haujlwm li cas ntawm ASTM A53 Graa cov yeeb nkab steel?
Ua ntej, xaiv txoj kev tiv thaiv corrosion tsim nyog (xws li Galvanizing + txheej) raws li kev thov ib puag ncig. Zam kev sib chwv nrog cov feem tsis sib xws ntawm cov kev teeb tsa kom tiv thaiv cov colvanic corrosion. Nquag ntxuav cov yeeb nkab sab hauv los tiv thaiv kev tso nyiaj uas ua rau muaj kev xeb hauv zos. Tsim cov txheej txheem tshuaj xyuas kom kos cov coating kev ncaj ncees thiab cov phab ntsa tuab hloov pauv txhua ib mus rau ob xyoos. Rau cov kav dej tseem ceeb, nruab ib qho kev saib xyuas kev kho mob online (xws li cov kev soj ntsuam tsis kam lossis ultrasonic sensor). Tsim nyog tsim (xws li kev zam kev teeb tsa sib luag rau dej tsub zuj zuj) kuj tseem tuaj yeem txuas ntxiv lub neej pabcuam.
