US STODE cov qauv h- Beams xav tau cov kev kho kom deb ntawm kev tiv thaiv corrosion los tiv thaiv corrosion, kev puas tsuaj ib puag ncig, txuas ntxiv lawv txoj kev pabcuam lub neej hauv ntau yam kev siv. Kev xaiv ntawm kev kho yog nyob ntawm ib puag ncig (nyob sab nraud (sab nraud)
Kub - dip galvanizing yog qhov kev kho mob tshaj plaws rau sab nraum zoov lossis siab {1} noo noo noo noo. Cov txheej txheem cuam tshuam nrog h {{3} Tsov ci zinc (sib haum metallurgical sib khi ntawm zinc thiab hlau. Lub resating txheej - Feem ntau 85-120 polloys uas ua raws li kev ua kom zoo nkauj: Zinc corrodes uas nyiam, tiv thaiv cov kab hauv av los ntawm xeb.
Cov Ntawv Thov: Cov choj, kev tiv thaiv txoj kev loj, cov qauv vajtria (piers, docks). Piv txwv li, San Francisco - Alakland Bay Tus choj sib tw siv galvanized w27 × 178 kab teeb meem, nrog zinc cov tshuaj tsuag thiab huab.
LIFPANAN: {{50+ xyoo nyob hauv cov chaw nyob deb nroog, 20-30 xyoos hauv cov ntug hiav txwv lossis thaj chaw ntsev kom nrawm dua corrosion).
Cov txiaj ntsig zoo: Cov kev pab cuam tsis zoo txawm hais tias muaj kev sib tw (Flange}
Cov tshuab tha xim tha xim tau dav rau cov ntawv thov vaj tse tsim vaj tse thiab sab hauv tsev, muab kev tiv thaiv ob qho tib si thiab kev tswj hwm kev zoo nkauj. Lawv feem ntau muaj ntawm peb txheej:
Primer: Zinc - rich nplua nuj epoxy (85-95% zinc cov ntsiab lus) rau kev tiv thaiv Cathodic, thov ntawm 4-6 mils (100-150 microns).
Nruab nrab tsho tiv no: epoxy lossis polyurethane los tsim cov thickness (6-10 mils), txhim kho tshuaj lom neeg tiv thaiv.
Topcoat: Acrylic lossis fluoropolymer (2-4 lab) rau UV tsis kam thiab xim khaws cia.
Daim Ntawv Thov: Lub tsev lag luam lag luam, chaw ntau pob, cov chaw lag luam. Lub Mercedes - benz chaw ua si hauv Atlanta siv cov xim sib tw, nrog kev cai nyiaj Topcoat sib txuam nrog pab pawg.
Lifespan: 15-20 Xyoos nyob sab hauv tsev, 10-15 xyoo sab nraum zoov (nrog rau lub sijhawm kov tsis muaj {}}}}}.
Advantages: Customizable colors, compatibility with architectural designs, and ease of repair-damaged areas can be spot-painted without removing the entire beam.
Weathering hlau (ASTM A588) yog kev kho tshwj xeeb rau sab nraum zoov, qis {1} {} tu cov ntawv thov. Cov qauv qib no ua cov txheej txheem tuab, ua kom muaj xeb txheej ("patina") thaum oxygen, muaj cov hlau oxide thiab alloy cov ntsiab lus zoo li tooj liab thiab chromium. Lub patina thaiv cov pa roj oxygen ntxiv thiab cov dej nkag, nres corrosion.
Cov Kev Siv: Txuas hniav, duab puab, cov qauv sab nraum zoov. Lub Tuam Txhab Nyab Laj Vietton, DC, siv A588 w {4 4}} duab, nrog nws lub ntuj muaj xeb ua ib feem ntawm kev tsim qauv.
LIFPANAN: {75+} xyoo tsis muaj txheej, raws li patina tus kheej - kho cov khawb me me.
Cov txiaj ntsig zoo: tshem tawm cov xim zoo nkauj, txhim kho ib qho kev zoo nkauj, thiab ua tau zoo tshaj plaws nyob hauv thaj chaw lossis qis} Cov chaw ua paug.
Hmoov txheej yog ib qho txheej txheem ua tiav yooj yim haum rau sab hauv tsev lossis chaw nyob sab nraum zoov daim ntawv thov sab nraum zoov. Cov hmoov polymer yog electrostatically thov rau h {l}} nqaj (56-392℃(356
Cov ntawv thov: Retail fluctures, Warehouse Shelving, Hniav ntsiab. Ikea faib cov chaw siv hmoov -}}} Beams rau racking, nrog xiav topcoat tsis kam khawb ntawm pallet jacks.
LIFPANK: 10-100 xyoo nyob sab hauv tsev, 5-8 xyoos sab nraum zoov (yog tias tiv thaiv los ntawm cov nag ua ntej).
Cov txiaj ntsig zoo: muaj peev xwm ua siab ntev, tsis muaj volatile organic cov tebchaw (vocs), thiab ntau hom xim.
Epoxy Txheej ci yog siv hauv ib puag ncig lossis kev tiv thaiv qhov tsis kam rau acids, cov kuab tshuaj, lossis roj yog qhov tseem ceeb. Lawv tau thov raws li ib txheej ib txheej (10-20 mils) lossis hauv kev sib xyaw nrog tus thawj pib, tsim cov kev txwv tsis raug.
Cov Kev Siv: Cov khoom siv khib nyiab pov tseg, cov khoom lag luam chemical. Houston refinery siv epoxy - coated w12 × cov duab sab, nrog 30% sulfuric acid raug.
LIFPANK: 15-20 xyoos nyob rau hauv cov tswj ib puag ncig.
Cov kev xaiv ntawm cov nyiaj sib pab kho cov nqi kho mob, lifespan, thiab kev ua tau zoo. Lub nroog choj nyob deb nroog yuav siv A588 huab cua dav hlau kom tsis txhob rov pleev xim tshaj tawm, thaum ntug hiav txwv loj ntawm kev tawm tsam kom tsis txhob tawm tsam cov tshuaj tsuag ntsev. Hauv cov tsev lag luam ua lag luam, cov tshuab pleev xim muaj ob qho kev tiv thaiv thiab tsim qauv, ua kom peb cov nqaj nyob twj ywm ua haujlwm thiab pom kev zoo ib yam rau kaum xyoo.