1.Txhua hom corrosion muaj nyob rau hauv qhov tshwj xeeb corrosion ib puag ncig ntawm kev hla ciav hlau?
Stray tam sim no corrosion: tam sim no tam sim no los ntawm DC Fais Fab System (txog 100A hauv subways / high-ceev railways corrosion (ntau tshaj plaws kev hem thawj (ntau tshaj plaws kev hem thawj)
Fretting corrosion: lub tsheb kev co ua rau kev hnav khaub ncaws ntawm lub interface ntawm cov txuas (bolts / rivets), ua kom muaj txheej txheem
Condensation corrosion: high humidity (>90%) + hloov qhov kub thiab txias nyob rau hauv lub qhov ua rau ntev ntev in Infiltration ntawm cov dej ua dej
Cov neeg sawv cev mos deicing corrosion: chlorine ntsev lav tus neeg sawv cev (NACL / CACLON) txau ntawm cov chaw sib tw
Cov hmoov av yaig: Kev kub-ceev carflow nqa cov lus tawv thiab ntxuav cov npoo ntawm cov khoom (tshwj xeeb yog cov khoom siv hauv qab)
2.What yog qhov tshwj xeeb tiv thaiv corrosion?
Anti-Stray Tam Sim No Corrosion
Cov Khoom Xaiv:
Zinc-aluminium txheej (ZMA) (mg loj dua lossis sib npaug, vim nws txoj kev kho nws tus kheej tuaj yeem cuam tshuam los ntawm cov khoom tawg tam sim no.
Cov cuab yeej siv hauv av yuav tsum yog ua los ntawm cov hlau stainless (316L) lossis collper-clad steel. Cov hlau loj hauv Galvanized yog txwv tsis pub
Tsim qauv qauv:
Teeb tsa cov kais dej: nteg tooj liab cables nrog thaj tsam ntawm ntau dua lossis sib npaug ntawm 150mm² raws txoj kev thiab txuas rau qhov tsis zoo ntawm kev hloov pauv txhua 200m.
Rwb thaiv tsev kev sib cais: Nruab Upoxy fibergy rwb thaiv tsev cov ntaub paus ntawm galvanized steel txhawb nqa thiab lub hauv paus.
Kev Ntsuam Xyuas thiab Kev Tiv Thaiv: Txhim Kho Cov Lus Qhia Muaj Peev Xwm Tswj Xyuas Cov Khoom Siv Hlau hauv Cov Khoom Siv Cov Hlau nyob hauv thaj chaw muaj kev nyab xeeb
Yuam kev tam sim no Cathodic kev tiv thaiv yog siv rau ntu tseem ceeb.
3.Qhov yog cov kev daws teeb meem rau cov khoom tseem ceeb?
Hu Rau Network Past
Cov Khoom Siv Hauv: Q355Pghhd Huab Cua Hluav Taws Xob
Qhov Txheej Txheem: Ob Chav Tiv Thaiv
Lub Tsheb Chassis Txheej Txheem
Cov Khoom Txhim Kho: Cov Qauv European: S355J2W + Nub Huab Cua Daws Zinc-Nick 15% 5
Anti-Pob Zeb Cuam Tsim Qauv: 2MM Polyurea tiv thaiv phaj yog muab tso rau sab cua
Txheej Txheej: Epoxy Primer (80μm) Tau Siv Roj Hmab Tau Txhim Kho
4.What yuav tsum tau kuaj seb puas yuav tsum tau kuaj lub Hoobkas?
Plaster Thickness: Magnet induction txoj kev, 5 ntsiab lus ib square Meter.
Porosity: poov tshuaj ferrocyanide daws cov qauv raus dej raus dej.
Adhesion: hla-txiav kev kuaj + daim kab xev peeling.
5.Qhov dab tsi yog cov evolution kev taw qhia ntawm cov tshuab thev naus laus zis?
Nanocomposite txheej: Ntxiv cov nanoparticles (2-5%) mus rau zinc txheej nce ntxiv los ntawm 3 zaug
Gradient alloying: txheej saum npoo txhuas-nplua nuj ntxiv (ib qho ntau dua lossis sib npaug ntawm 55% → nruab nrab ntawm zinc-→
Ntse txheej: Ph-rhiab microcapsules yog cog kom cia li tso tawm corrosion inhibitors (xws li sodium molybdate) thaum corrosion tshwm sim