Txhawm rau ua kom muaj kev tsim ntawm Q550NH's tiv thaiv txheej xeb thaum ua kom nws corrosion tsis kam, ua raws cov kev tswj hwm no:
1. Canclic ntub {{}}}} qhuav
Kev ua: Tsw txau txau saum npoo nrogDej deion(3-4 zaug ib hnub) rau 1-2 lub lis piam.
Kev kawm txuj ci: Simulates Ntuj Los nag / lwg mus ncig ua si, txhawb nqa cov oxidation sai uas tsis muaj ntsev -}} ua pitting.
2. Kev siv tshuaj ntsuam xyuas (pre - rowing)
Cov kev daws teeb meem: Siv5% tooj liab sulfate (cuso₄) + 1}} hydrogen peroxide (h₂o₂)Txau.
Ua rau: Tooj piv rau cov ntxig ua kom tsis zoo ib yam li tsis muaj xeb nucleation; Peroxide txhawb oxidation.
3. Kev npaj ua kom muaj kev npaj
Kauj ruam 1: Sandblast (sa qib) kom tshem cov zeb nplai.
Kauj ruam 2: ThovDilute Phosphoric Acid (5%)kom qhib saum npoo.
4. Ib puag ncig tswj hwm
Kev vaum: Tswj 60-80% rh ntawm 25-35℃(accelerates oxidation).
UV kis: Siv UV teeb rau simuling tshav ntuj -} tsav patina tsav patina.
5. Txwv xeb ruaj khov
Tannic Acid Kho: Hloov xoob xoob ua rau muaj xeb ruaj khovHlau Tannate complexes.
Kev lag luam nrawm: Cov khoom lag luam zoo liCorten Rustnetic(Ua raws cov tuam txhab kev lag luam).
Cov kev txiav txim siab tseem ceeb rau Q550NH
Tsis txhob muaj tshuaj tsuag ntsev: Chlorides ua rau tsis -}} tiv, flaky xeb.
Saib xyuas tuab: Phiaj patina thickness:50-100 μm(kev sib tw ua rau spalling).
Tshaj tawm -} kev kho: Yaug nrog dej tom qab cov txheej txheem tshuaj kom tshem cov seem.
Txheem siv: ISO 9223 rau kev ntsuam xyuas corrosion nrawm.
