Yuav Ua Li Cas Kho Cov Khoom Uas Muaj Kev Tiv Thaiv -Corrosion Txheej Ntawm Lub Thawv Txias?

Kev kho yuav tsum tau ua nyob rau hauv qhuav dock; Lub hauv siab hiav txwv yuav tsum tau ntws tawm tag nrho, ntxuav thiab tso pa tawm yam tsis muaj dej hiav txwv seem. cais covlub thawv txiasraj pob khoom kom tsis txhob khawb los yog txheej kab mob.

Kauj Ruam 1: Kev Npaj Tag Nrho (Tebchaws Tseem Ceeb)
Kos tag nrho cov tev, chipped, khawb, blistered txheej txheej, txuas ntxiv kho thaj tsam yam tsawg 50 hli dhau ntawm cov npoo puas.
Tshem tawm tag nrho cov txheej txheem tsis zoo los ntawm kev sib tsoo lub zog lossis siab - lub dav hlau dej tshiab.
Tshem tawm cov xeb, cov khoom siv corrosion, marine sludge thiab ntsev deposits kom huv si.
Blasting ntxuav cov hlau raug rau Sa 2.5 tus qauv, nrog cov xim hlau xim grey nto, tsis muaj xeb lossis ntsev paug.
So cov hlau nto nrog hnyav-dawb degreaser kom tshem tawm cov roj thiab ntsev; cua- qhuav tag.

Kauj Ruam 2: Ntug Chamfer Kho
Sib tov cov npoo ntawm cov txheej tsis zoo rau hauv ib qho 30℃-45℃chamfer.
Lub Hom Phiaj: Tiv thaiv cov txheej txheem tshiab los ntawm tev tawm ntawm kev sib tshuam ntawm cov xim qub thiab cov xim tshiab.

Kauj ruam 3: Siv Primer
Txhuam los yog tshuaj tsuag tso cai marine los tiv thaiv -corrosion epoxy primer sib npaug ntawm cov hlau liab qab kho.
Tswj cov yeeb yaj kiab qhuav tuab (DFT) ib qho xim tshwj xeeb, tso cai rau lub sijhawm ua kom puv raws li cov chaw tsim khoom xav tau.
Tshawb xyuas cov pinholes, tsis muaj kev tiv thaiv ua ntej txheej tom ntej.

Kauj Ruam 4: Nruab nrab & Sab saum toj Epoxy Txheej
Siv nruab nrab epoxy txheej tom qab primer kho tag nrho.
Siv sab saum toj los tiv thaiv -corrosion epoxy hauv ob sab phlu (tib lub cev raws li lub hauv siab hauv siab qub).
Tsim kom muaj tag nrho DFT kom phim cov qauv tsim thawj thickness (feem ntau Ntau dua lossis sib npaug rau 150μm rau kev pabcuam hauv hiav txwv).
Xyuas kom seamless sib tshooj ntawm cov txheej tshiab thiab chamfered qub txheej, tsis muaj qhov khoob lossis nyias me ntsis.

Kauj Ruam 5: Kho & Tshawb xyuas
Khaws qhov chaw qhuav, qhov cua zoo thaum lub sij hawm kho tag nrho (tsis txhob ya raws, lwg, dej hiav txwv txaws).
Ua DFT thickness kuaj, kev tshuaj xyuas qhov muag rau hlwv, tawg, sagging los yog liab qab steel raug.
Optional sociable spark test rau qhov chaw kho qhov tob tob kom pom cov pinholes zais.

Kauj Ruam 6: Tshaj tawm - Kho Kev Tiv Thaiv Kev Sib Tw
Reinstall insulated gaskets, yas bolt lub tes tsho kom tswj tau hluav taws xob cais ntawm lub thawv txias lub raj ntim thiab lub hauv siab steel hauv siab.
Txheeb xyuas cov zinc / txhuas anodes: hloov cov anodes uas tau siv ntau heev tom qab txheej txheej.
Calibrate ICAF system ua ntej rov-lav nkoj kom rov sib npaug qhov sib txawv.

Thaum muaj xwm ceev me me kov-Up (Me me tsuas yog khawb xwb)
Rau me me txheej puas tsawg dua 10 cm² yam tsis muaj xeb sib sib zog nqus:
Tes xuab zeb ntxuav xeb thiab xoob txheej, degrease thiab qhuav.
Ib txheej primer + ib txheej topcoat, ua raws li luv luv luv luv; tsis xav tau tag nrho blasting.

Cov ntsiab lus tseem ceeb kom tsis txhob muaj kev cuam tshuam thib ob ntawm Galvanic Corrosion
Tsis txhob tso cov hlau liab qab tawm tom qab kho; txheej tsis tiav yuav nrawm pitting.
Tsis txhob co copper-nickel / aluminium brass tube bundles, tsuas yog tiv thaiv carbon steel ncej thiab hiav txwv hauv siab.
Tsis txhob siv graphite gasket tom qab recoating; ib txwm txais cov insulating uas tsis yog -cov khoom sib khi.
Ua kom tiav tag nrho kev kho hauv chaw nres nkoj qhuav; ib ntus underwater thaj tsis tuaj yeem nres ntev -lub sij hawm galvanic corrosion.