Khoom Description
Thaum cov qib atmospheric corrosion yog C2 thiab C3 nyob rau hauv Marine atmospheric ib puag ncig, weathering steel siv liab qab; Nyob rau hauv qhov kev txiav txim ntawm load, cov txheej txheem tiv thaiv xeb tawg thiab ntog tawm. Kev tawg ntawm cov xeb txheej muab cov channel rau oxygen diffusion, ua rau nws tsis muaj peev xwm tiv thaiv cov matrix, thiab ua rau cov hlau txuas ntxiv, thiab cov corrosion hauv zos yog yooj yim tshwm sim. Cov yam tseem ceeb cuam tshuam rau qhov sib xws ntawm lub thauj tog rau nkoj steel strand thiab qhov tshwm sim ntawm qhov tsis sib xws ntawm lub zog ntawm cov hlua hlau hauv cov kab hlau raug tshuaj xyuas.
Los ntawm kev qhia txog lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm kev txawj ntse sib npaug ntawm txoj kev nruj, kev tsim kho tshuab ntawm cov ntse sib npaug sib npaug tuaj yeem tswj tau lub zog sib npaug ntawm txhua txoj hlua hlau ntawm lub cable, thiab tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm kev tsim kho ntawm lub zog cable zoo. Nws tuaj yeem muab kev siv rau kev tsim thiab kev tsim kho ntawm tus choj zoo sib xws cable-stayed system. Cov huab cua resistant steel siv nyob rau hauv liab qab ntim yuav ua rau corrosion loj heev thaum siv tsis zoo, ua rau cov neeg kho tshuab degradation, tshwj xeeb tshaj yog nyob rau hauv kev nyuaj siab corrosion thiab corrosion qaug zog lub xeev weathering resistant steel tau nyiam cov xim thiab dav xim ntawm tus choj designers rau nws durability, thiab nws tau dhau los ua ib qho inevitable qauv mus nthuav daim ntawv thov ntawm weathering resistant steel choj nyob rau hauv Tuam Tshoj.
Nyob rau hauv kev pom ntawm qhov tsis muaj kev xav thiab txoj hauv kev rau kev tsim qauv ntawm weathering steel choj nyob rau hauv Tuam Tshoj, daim ntawv thov thiab kev tshawb fawb ntawm weathering steel nrog rau cov qauv tsim ntawm weathering steel choj tau raug tshuaj xyuas los ntawm kev tshawb fawb ntawm txawv teb chaws cov ntaub ntawv ntawm weathering steel thiab weathering steel choj, feem ntau yog xa mus rau kev tsim kho ntawm weathering steel choj nyob rau hauv lub tebchaws United States, Nyiv thiab Europe. Cov txheej txheem corrosion ntawm weathering steel nyob rau hauv kev sib txuas ntawm ib puag ncig thiab kev thauj khoom, kev degradation ntawm txhua yam khoom ntawm weathering steel tom qab corrosion, tsim txoj kev xav thiab cov ncauj lus kom ntxaws tsim qauv ntawm weathering steel choj feem ntau yog tham, thiab cov kev ua tiav thiab cov teeb meem uas twb muaj lawm tau sau thiab txheeb xyuas. Lub degradation ntawm mechanical zog yog hnyav dua. Cov txheej txheem tsim kom ntxaws ntawm steel choj yog qhov tseem ceeb heev los xyuas kom meej qhov corrosion kuj ntawm weathering steel, thiab kev saib xyuas tsis tu ncua tuaj yeem txuas ntxiv lub neej kev pab cuam ntawm cov qauv. Daim ntawv thov ntawm weathering steel yuav txo tau lub neej voj voog nqi ntawm steel choj.
Cov txiaj ntsig kev soj ntsuam yog npaj los muab kev siv rau yav tom ntej kev tshawb fawb kev taw qhia ntawm corrosion resistance mechanism thiab mechanical zog ntawm weathering steel nyob rau hauv Tuam Tshoj, thiab rau tsim thiab tsim ntawm weathering steel choj.
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