Tsis meej pem txog Steel Structure Anti-Corrosion? Standard Options & Cov Txheej Txheem Kev Xaiv

Steel qauvanti-corrosion yog ib qho tseem ceeb heev rau kev siv lub neej ntawm cov tsev. Cov txheej txheem tiv thaiv corrosion sib txawv raws li qhov sib txawv ntawm ntuj thiab kev pabcuam ib puag ncig. Kev soj ntsuam zoo yuav tsum tau ua rau ob qho tib si kev npaj saum npoo thiab kev tiv thaiv corrosion los txiav cov nqi pib tsim thiab ua kom lub neej ntev ntawm lub tsev.

Txhua yam ntawm lub tsev yuav raug cuam tshuam los ntawm corrosive ib puag ncig, uas tau muab faib ua ntau hom corrosion raws li cov kev pabcuam.

Cov txheej txheem tiv thaiv corrosion sib txawv yuav tsum raug xaiv los tiv thaiv ntau qhov chaw corrosive. Txawm hais tias qhov kev daws teeb meem twg tau txais, kev npaj saum npoo nteg lub hauv paus ntawm kev tiv thaiv corrosion thiab txiav txim siab seb cov txheej txheem tiv thaiv puas tuaj yeem ua tau raws li tsim. Feem ntau, sandblasting lossis txhaj tshuaj blasting yog siv rau kev tshem tawm xeb ntawm steel qauv kev cob qhia, nrog rau qib kev huv yam tsawg kawg nkaus ntawm Sa2.5, txhais tau tias yog kev ntxuav huv huv heev. Tsis tas li ntawd, thawj qib xeb ntawm steel substrates yuav tsum raug coj mus rau hauv tus account. Cov ntaub ntawv nyoos uas tsis tuaj yeem ua tau raws li tus qauv xav tau txawm tias tom qab kev kho saum npoo yuav tsum tau hloov lossis muab pov tseg.

Thaum ua tiav ntawm kev npaj nto, cov kauj ruam tom ntej yog xaiv cov txheej txheem tiv thaiv corrosion. Txau painting thiab kub-dip galvanizing yog ob txoj kev daws teeb meem. Tsis tas li ntawd, ntau qhov pov thawj paub tab kev tiv thaiv corrosion yog dav siv hauv cov haujlwm ua haujlwm: 

(1) Weathering steel fundamentally daws teeb meem corrosion, muaj feem xyuam rau sab nraum zoov ib nrabsteel qauv, tseem nrog cov drawbacks ntawm cov nqi siab thiab cov tsos tsis zoo. 

(2) Thermal spraying (txheej txhuas txau / zinc txau) muab kev ua tau zoo sib npaug rau kub-dip galvanizing thiab nta zoo adaptability rau cov khoom siv qhov ntev, zoo tagnrho rau cov tswv cuab tshwj xeeb steel thiab ib puag ncig corrosive hnyav.

(3) Kev tiv thaiv Cathodic tso siab rau cov txheej txheem electrochemical los tiv thaiv corrosion, feem ntau yog siv rau cov qauv hlau hauv qab dej los yog faus hauv av. Cov txheej txheem kev tiv thaiv kev sib xyaw ua ke ua haujlwm ua lwm txoj hauv kev tshaj li cov kev daws teeb meem, xws li kev tiv thaiv corrosion thiab hluav taws kub-resistant coatings thiab graphene heavy-duty anti-corrosion txheej.

Multi-Layer Spray Txheej System

Cov tshuaj tsuag txheej tiv thaiv corrosion rau steel qauv tsim ntau txheej tiv thaiv txheej ntawm cov khoom siv nrog cov haujlwm sib txawv, uas feem ntau muab faib ua peb txheej: primer, nruab nrab txheej thiab topcoat. Lub primer pab rau adhesion thiab xeb tiv thaiv. Epoxy zinc-nplua nuj primer nrog zinc cov ntsiab lus tsis tsawg dua 70% feem ntau yog siv. Inorganic zinc-nplua nuj primer yog lwm txoj hauv kev, tsis tau nws cov yeeb yaj kiab qhuav yuav tsum tau tswj nruj. Epoxy micaceous hlau oxide intermediate tsho yog siv rau cov txheej nruab nrab, thiab aliphatic polyurethane topcoat los yog fluorocarbon topcoat tau txais los ua lub tsho tiav. Tag nrho cov txheej txheem ntawm cov txheej txheem txau yuav tsum ua tiav hauv tib lub Hoobkas kom ntseeg tau tias kev ua haujlwm ruaj khov thiab txhim khu kev qha los tiv thaiv corrosion.

Galvanizing

Galvanizing yog muab faib ua kub-dip galvanizing thiab electro-galvanizing (zoo tib yam galvanizing). Kub-dip galvanizing (lub npe tag nrho: kub-dip galvanization) tsim cov zinc txheej tiv thaiv los ntawm immersing hlau rau hauv molten zinc da dej. Nws nta tuab zinc txheej ntawm 65μm txog 200μm. Nrog zoo corrosion kuj, lub neej ntev kev pab cuam, ruaj adhesion thiab cov txheej txheem yooj yim, nws muaj qhov tsis zoo ntawm cov tsos mob mediocre thiab haum rau cov khoom siv loj loj. Electro-galvanizing deposits zinc txheej raws li txoj cai electrolysis. Nws cov zinc txheej yog nyias nyias, feem ntau 20μm rau 30μm. Nws boasts zoo zoo nkauj nyhuv tsis tau nyuaj ntau lawm txheej txheem, uas yog muaj feem xyuam rau me me precision qhov chaw los yog cov qauv xav tau lub teeb los tiv thaiv corrosion.

Corrosion tiv thaiv rausteel qauv rhiavpib nrog kev lees paub qhov kev txhim kho corrosion ntawm qhov chaw ua haujlwm, ua tiav cov txheej txheem tsim nyog thiab xaiv cov tshuaj tiv thaiv corrosion tsim nyog. Raws li cov kws tshaj lij steel qauv tsim khoom, EHSS muaj kev paub tob ntawm txhua txoj kev tiv thaiv corrosion thiab tuaj yeem pab koj xaiv cov nqi txuag thiab kev tiv thaiv corrosion siab.