1. Qiv tus cwj pwm ntawm Q295NH
Thawj zaug xeb tsim:
Zoo li tag nrho cov pa roj carbon hlau, Q295NH yuav tsim cov xeb saum npoo av thaum raug cov dej noo thiab oxygen. Txawm li cas los xij, vim nws cov khoom siv alloy (Cu, CR, P), qhov kev tshwm sim thawj zaug ntxiv rau cov txheej ntau dua li flaking.
Tusthawj 6-12 lub hlisYuav qhia cov txiv kab ntxwv - xim av xeb thiab dej ntws me me, tab sis qhov no yog ib feem ntawm lub patina kev txhim kho patina.
Theem:
Saum1-3 xyoos(nyob ntawm ib puag ncig), cov xeb txheej ua kev sib ntsib rau hauv lub xim av tsaus nti {} -} Tus Dub Tiv Thaiv Patina feem ntau tsim ntawm- feooh (guethite), uas slows ntxiv ntxiv corrosion.
Tus nqi corrosion poob rau<0.05 mm/yearNyob rau hauv qhov temperate ib puag ncig tom qab muaj stabilization.
2. Qhov xwm txheej cuam tshuam rau xeb nrawm
| Huab cua | Kev xeb tsim nrawm | PATINA STRABILISATION LUB SIJ HAWM |
|---|---|---|
| Temperate (piv txwv li, Beijing) | Nruab Nrab (6-12 hlis) | 1.5-2 xyoos |
| Nqaum (piv txwv li, Shanghai) | Sai (3-6 hlis) | 2-3 xyoos (tej zaum yuav xav yaug) |
| Muaj (so₂ purgeed) | Sai (3-6 hlis) | 2-3 xyoos (yuav tsum soj ntsuam) |
| Qhuav (piv txwv li, xinjiang) | Slower (12+ lub hlis) | 3+ xyoo |
3. Kev sib piv nrog cov hlau loj
Dog dig carbon hlau (piv txwv li, q235b):
Russ tau nrawm, ua kom xoob, xeb xoob uas tsis muaj qhov quav, ua rau cov hlau tshiab los txuas ntxiv corrosion (0.1-0.2 mm / xyoo poob).
Q295NH:
Alloys (Cu, CR, P) tsim ibSELF -} Kho PatinaQhov ntawd txo tau ntev - lub sij hawm corrosion los ntawm 50-80% piv rau cov hlau zoo tib yam.
4. Ua li cas nrawm pata tsim?
Deg ua ntej -} kev kho:
Sandblasting(SA 2.5 txuj ci) tshem tawm zeb nplai thiab ua kom muaj kev sib dhos xeb tsis muaj nuj nqis.
Kev Siv Tshuaj Lom Zem: TxauTooj liab sulfate (cuso₄)lossishydrogen peroxide (h₂o₂)Cov kev daws teeb meem tuaj yeem ua tiav Patina nyob hauv3-6 hlis.
5. Kev thov thiab ua haujlwm
Raug Siv Siv:
Tsis - Tus txheej txheem tseem ceeb (piv txwv, cov khoom siv thauj tsheb thauj khoom, khoom siv ua liaj ua teb) qhov twg huab cua tsis txaus yog qhov txaus.
Kev txwv:
Tsis pom zoo rau cov ntug hiav txwv txaws zones lossis cov kua qaub heev uas tsis muaj kev tiv thaiv ntxiv (piv txwv li, cov xov xwm).
