1. Txhim kho ib puag ncig ib puag ncig
Ya raws thiab oxygen: Xyuas kom muaj kev coj mus ncig ua ntu zus mus txog kev sib tsoo ntawm ya raws (piv txwv li nag, av noo) thiab huab cua. Txheej xeb tsim kev nce nrawm dua nyob rau hauv ib puag ncig vaum (txheeb ze cov av noo 60-80%) dua li qhov chaw qhuav lossis dej ntws. Avoid prolonged immersion in water, as it can lead to loose, non-protective rust.
Muaj cov ntsev tsis huv lossis cov pa phem: Quality ntau ntawm chloride ions (los ntawm ntug hiav txwv) lossis sulfur dioxide (los ntawm cov chaw muaj kev lag luam, tab sis ntau dhau yuav cuam tshuam cov txheej tiv thaiv. Rau thaj chaw hauv cheeb tsam, qee zaus ua yuam kev nrog cov ntsev kom huv (piv txwv li, 0.5-1%
Qho so: Nruab nrab kub (15-30 degree) yog qhov zoo tagnrho. Kev ntsuas kub siab dua tab sis yuav tsum muaj dej noo txaus los tiv thaiv kom tsis txhob muaj xeb tawm sai sai.
2. Nto Nto Pretreatment
NEEG KHO TSHUAB TXHAIS: Tshem tawm mill nplai, roj, av, lossis xoob xoob xoob siv cov qauv xws li grit blasting, hlau txhuam hniav, lossis khau khiab. Qhov no nthuav tawm cov hlau tshiab rau ib puag ncig, tso cai rau kev pib ua ke xeb.
Kev Siv Tshuaj Lom Zem: Siv cov tshuaj acidic me me (piv txwv li cov kua qaub phosphoric (itric acid) los etch thiab txhawb nqa cov ntsiab lus oxo thiab txhawb nqa cov ntsiab lus oxoy Yaug kom huv si nrog dej tom qab mus rau nruab nrab cov kua qaub.
Huab Cua Ntsis: Thov ua lag luam "Patina Accelerators" (feem ntau dej- Kev daws teeb meem muaj sulfate, cormicide, lossis organic acids) tsim rau huab cua cov hlau. Cov kev daws teeb meem nrawm ntsuas cov tshuaj lom neeg uas tsim cov txheej tuab tuab tuab, txo lub sijhawm ntawm lub hlis. Ua raws li cov chaw tsim khoom cov lus qhia rau kev thov (piv txwv li, txau lossis txhuam hniav).
3. Tswj kev laus kev kho mob
Cev Kev Ntsuas Cov Vaum: Tso cov hlau hauv ib chav ntawm cov av noo (piv txwv li, 90 cov av noo rau 8 teev, tom qab 50% rau 16 teev) thiab kub kub. Qhov no ua kom zoo nkauj ntuj huab cua thiab txhawb nqa kev sib tw muaj xeb kev loj hlob.
Kev Tshuaj Ntsev Ntsev: Ntes cov hlau rau cov tshuaj ntsev (A ASTM B117 tus qauv) rau kev tsim kom nrawm nrawm nrawm (piv txwv li, mus rau, Tebchaws, Lepidocrocite).
4. Post -} tsim kev txij nkawm
Zam kev puas tsuaj: Tiv thaiv kev puas tsuaj tshuab (piv txwv, scraping, cuam tshuam) uas tuaj yeem tshem cov txheej ceev kev tiv thaiv, xav tau rov- tsim.
Txwv tsis pub nthuav tawm cov kev ua kom muaj zog: Thaum q550nh tiv taus atmospheric corrosion, piv txwv li cov ntsev chloride (piv txwv li cov kua txiv icing) lossis acidic tej yam yuav tsoo lub patina. Yog tias raug, yaug ua ntu zus nrog cov dej huv kom tshem tawm cov kuab paug.
