Txawm tias qhov siab tshaj plaws -zoo SMA400BP Corten Steel- ua raws li JIS G 3114: 2022- tuaj yeem ua tsis tau raws li nws tau cog lus tseg rau 25+ xyoo kev pab cuam lub neej yog tias ua ntej - cov kauj ruam kev teeb tsa raug saib xyuas. Feem ntau ua ntej corrosion, weld defects, thiab cov teeb meem kev ua tau zoo ntawm cov qib no tsis yog los ntawm cov khoom nws tus kheej, tab sis los ntawm kev npaj tsis txaus ua ntej ntawm - qhov chaw sib dhos. Cov tswv yim no, tus qauv- cov lus qhia ua raws kom ntseeg tau tias koj tus qauv SMA400BP khaws nws cov kev tiv thaiv corrosion tag nrho, kev ua haujlwm ruaj khov, thiab kev ua haujlwm qis qis rau ntau xyoo.
1. Tshawb xyuas Cov Khoom Ua Raws Cai & Kev Tshawb Fawb Ua Ntej
Ua ntej kev tsim khoom lossis kev teeb tsa ua haujlwm pib, paub meej tias txhua pawg ntawm SMA400BP ua tau raws li JIS G 3114: 2022 cov cai uas siv tau, taug qab tau EN 10204 3.1 Cov Khoom Siv Xeem Ntawv Pov Thawj (MTC). Hla- txheeb xyuas daim ntawv pov thawj tiv thaiv tus qauv tus qauv yuav tsum tau ua:
Cov tshuaj muaj pes tsawg leeg, suav nrog 0.30-0.50% tooj liab, 0.45-0.75% chromium, thiab tsawg dua lossis sib npaug rau 0.18% carbon
Cov khoom siv tshuab, suav nrog yam tsawg kawg 26% elongation thiab 27 J cuam tshuam toughness ntawm 0 degree
Ntau cov batch naj npawb sib piv cov khoom xa tuaj rau koj qhov chaw
Cov kauj ruam no tshem tawm txoj kev pheej hmoo ntawm kev siv mislabeled los yog tsis yog -cov hlau ua raws li uas yuav ua tsis tau ntxov ntxov nyob rau sab nraum zoov.
2. Tiv thaiv Hla-Kev paug & huv si kom huv si
SMA400BP tus kos npe corrosion kuj yog nyob ntawm qhov tsim ntawm ib qho kev sib xws, tus kheej - kho patina- thiab qhov chaw paug yog ib qho kev cuam tshuam loj tshaj plaws rau cov txheej txheem no. Ua ntej installation:
Tshem tawm tag nrho cov nplai zeb, roj, roj, thiab cov khoom siv khib nyiab los ntawm cov hlau nplaum nrog cov txhuam hniav txhuam hniav (tsis txhob txhuam cov pa roj carbon steel)
nruj me ntsis zam kev sib cuag ntawm SMA400BP thiab cov cuab yeej carbon steel, chaw ua haujlwm, lossis cov khoom seem. Txawm tias me me carbon steel residues ua rau galvanic pitting, uas ua rau corrosion mus tas li hotspots uas ua rau lub patina.
Npog cov khoom tiav nrog cov pa ua pa, tsis muaj dej tsis zoo thaum lub sijhawm ntawm - qhov chaw cia kom tiv thaiv tsis sib xws ua ntej - xeb los ntawm nag lossis khib nyiab
3. Txheeb xyuas cov ntsiab lus tsim tawm tawm tsam JIS G 3114: 2022 Cov Lus Qhia
Ua ntej- kev teeb tsa yog koj lub sijhawm kawg los kho qhov tsis zoo ntawm cov qauv tsim uas yuav ua rau lub neej ua haujlwm luv luv. Ua kom pom tseeb ntawm cov JIS- txheeb xyuas qhov tseeb:
Paub meej tias cov kua dej kom raug: xyuas kom txhua qhov chaw kab rov tav muaj qhov tsawg kawg yog 2℃txoj kab nqes thiab ntws qhov kom tshem tawm cov dej sawv ntsug, uas ua rau cov kab mob hauv zos.
Txheeb xyuas qhov kev tiv thaiv corrosion: Txheeb xyuas tias tus qauv tsim muaj xws li 1-1.5 hli kev tiv thaiv corrosion, sib piv SMA400BP's JIS- tau txiav txim siab 0.01–0.06 hli / xyoo corrosion rau nws qhov chaw nyob.
Tshawb xyuas qhov txias- cov khoom tsim: Paub meej tias txhua qhov khoov tau raws li JIS G 3114: 2022 qhov yuav tsum tau muaj qhov tsawg kawg nkaus khoov vojvoog (1.5 × cov khoom tuab rau cov seem tsawg dua lossis sib npaug li 10 hli) kom tsis txhob muaj micro- tawg ua rau cov hlau tsis muaj zog thiab cuam tshuam kev tsim patina
4. Ua ntej-Ua tiav Vuam Consumables & Cov txheej txheem
Raws li qib engineered rau welded structural siv (ib JIS G 3114: 2022), SMA400BP lub sij hawm ntev - kev ua tau zoo nyob ntawm weld kev ncaj ncees. Ua ntej ntawm - qhov chaw vuam:
Xaiv cov huab cua huab cua nkaus xwb-cov khoom siv vuam sib txuas, nrog cov ntsiab lus tooj liab thiab chromium ua raws li SMA400BP cov ntsiab lus. Qhov no ua kom cov welds muaj tib yam corrosion kuj zoo li niam txiv steel, es tsis yog qhov ua tsis tiav ntxov
Paub meej tias tsis muaj qhov tsim nyog preheating yog npaj: SMA400BP's Tsawg dua lossis sib npaug ntawm 0.18% cov ntsiab lus carbon tshem tawm qhov xav tau preheating rau ntu txog li 20 hli tuab hauv qhov kub thiab txias, thiab cov cua kub ntau tuaj yeem degrade cov hlau corrosion kuj thiab cuam tshuam toughness.
Kev cob qhia cov pab pawg vuam kom tsis txhob muaj cua sov ntau dhau, uas ua rau kev ua haujlwm tawv thiab brittleness nyob rau hauv tshav kub- cuam tshuam cheeb tsam (HAZ)
5. Npaj cia & tuav los tiv thaiv cov khoom vaj khoom tsev
Kev tsis raug ntawm - qhov chaw cia tuaj yeem ua rau SMA400BP qhov kev ua tau zoo ua ntej kev teeb tsa txawm pib. Ua raws li cov cai no:
Khaws cov seem steel siab tsawg kawg yog 100 hli tawm hauv av, ntawm cov uas tsis yog - carbon steel bearers, kom tsis txhob muaj kev sib cuag nrog av, dej, thiab carbon steel khib nyiab
Khaws cov khoom sib dhos kab rov tav kom tsis txhob muaj kev sib tsoo, nrog rau qhov sib txawv ntawm cov nplooj ntawv kom tso cai rau huab cua ncig thiab tiv thaiv kom tsis txhob ya raws
Tsis txhob rub SMA400BP hla cov pa roj carbon steel qhov chaw, uas tawm hauv cov khoom siv hlau uas ua rau tsis muaj qhov cuam tshuam tsis zoo.
Hauv luv luv, cov no ua ntej -cov kauj ruam txhim kho- hauv paus hauv JIS G 3114: 2022 tus qauv tsim qauv rau SMA400BP Corten Steel- xyuas kom koj cov qauv xa tawm raws li nws cov lus cog tseg ntawm lub sijhawm ntev - lub sijhawm, qis - kev ua haujlwm tu. Los ntawm kev lees paub kev ua raws cai, tiv thaiv cov hlau saum npoo, kho qhov tsis zoo ntawm cov qauv tsim, thiab npaj cov txheej txheem vuam kom raug, koj tshem tawm 90% ntawm kev tshaj tawm - kev teeb tsa ua tsis tiav.
