Corten Steel yog dav siv hauv cov khoom siv thauj khoom xws li ntim thiab tsheb ciav hlau vim nws cov huab cua tsis zoo. Rau cov ntawv thov no, "lub teeb yuag" thiab "corrosion resistance" yog ob qho tseem ceeb tab sis muaj peev xwm tsis sib haum xeeb: lub teeb yuav pab txo qis kev siv hluav taws xob thiab ua kom muaj peev xwm thauj khoom, thaum corrosion kuj ua kom lub neej ntev hauv kev thauj mus los hnyav (xws li, ntug hiav txwv ntsev tsuag, ntoo khaub lig- hloov pauv hauv cheeb tsam kub). Lub caij no, kev xaiv ntawm daim ntawv tuab (2-6mm) ncaj qha cuam tshuam rau ob qho tib si thauj khoom thiab kev pabcuam lub neej. Kab lus no yuav piav qhia txog yuav ua li cas thiaj li ua tiav qhov sib npaug no thiab txheeb xyuas qhov tshwj xeeb ntawm kev xaiv thickness, muab cov lus qhia tswv yim rau cov neeg siv khoom txawv teb chaws.
1. Cov tswv yim tseem ceeb los ntsuas qhov sib npaug ntawm qhov hnyav thiab corrosion kuj
Tus yuam sij rau kev ntsuas qhov ob yog ua kom qhov ua tau zoo ntawm Corten Steel los ntawm kev xaiv cov khoom siv tshawb fawb, kev tsim qauv thiab kev ua kom zoo dua qub, tsis yog tsuas yog txi ib qho rau lwm tus:
1.1 Xaiv High-Lub zog Corten Steel Qib
Xaiv qhov siab - lub zog Corten Steel yog txoj hauv kev los ua kom lub teeb yuag thaum ua kom muaj kev tiv thaiv corrosion. High- qib zog muaj peev xwm tswj tau cov qauv muaj zog txaus nrog cov ntawv nyias nyias, txo qhov hnyav yam tsis muaj kev cuam tshuam kev ua haujlwm corrosion (corrosion kuj nyob ntawm alloy muaj pes tsawg leeg, tsis tuab).
Cov qib pom zoo rau cov khoom siv thauj khoom: ASTM A588 Gr.K (yield zog Ntau dua lossis sib npaug rau 345MPa), EN 10025-5 S355J2W (yield zog Ntau dua lossis sib npaug rau 355MPa), GB / T 4171 Q355NQR14 (lub zog loj dua, kev tsheb nqaj hlau) sib npaug 355MPa, -40℃cuam tshuam toughness). Cov qib no tau optimized Cu-Cr-Ni alloy piv rau corrosion kuj thiab siab zog rau lub teeb yuag tsim.
1.2 Optimize tus qauv tsim
Kev tsim qauv tsim nyog tuaj yeem txhim kho kev thauj khoom -cov kabmob muaj peev xwm, tso cai rau kev siv cov ntawv nyias Corten Steel. Piv txwv li:
Ntxiv cov ribs ntxiv rau hauv qhov tseem ceeb load-cov kabmob (piv txwv li, ntim cov ces kaum, tsheb ciav hlau underframes) kom cuam tshuam kev ntxhov siab, yog li lub cev tseem ceeb tuaj yeem siv cov ntawv nyias nyias (2-3mm) tsis yog cov ntawv tuab (4-6mm);
Txais cov txheej txheem tsim cov txheej txheem (piv txwv li, CNC dabtsi yog khoov) kom txo cov vuam seams, txhim kho cov qauv kev ntseeg siab, thiab zam cov ntsiab lus tsis muaj zog hauv zos los ntawm kev vuam, yog li tswj kev tiv thaiv corrosion nrog cov nplooj nyias nyias.
1.3 Txais Lub Hom Phiaj Los Tiv Thaiv -Txoj Kev Txhim Kho Kev Txhim Kho
Rau cov ntawv nyias Corten Steel (2-}3mm), lub hom phiaj tiv thaiv corrosion tuaj yeem ntxiv los them rau cov tuab tuab thiab ua kom lub neej ua haujlwm, yam tsis muaj qhov hnyav tag nrho:
Kev kho Silane impregnation: Tsim cov pob tshab, dej- cov yeeb yaj kiab tawm ntawm qhov chaw, thaiv cov chloride ions thiab noo noo nkag mus, uas ua rau muaj kev tiv thaiv corrosion tsis ntxiv qhov hnyav;
Cov tshuaj tiv thaiv hauv zos -corrosion txheej: Siv nyias epoxy zinc-nplua nuj primer (qhuav zaj duab xis tuab 30-50μm) ntawm cov chaw yooj yim corroded (xws li, thawv qhov rooj ntug, tsheb ciav hlau txuas qhov chaw), thaum ua kom lub cev tseem ceeb liab qab kom muaj lub teeb yuag thiab ntuj xeb xim.
2. Kev cuam tshuam ntawm daim ntawv Thickness (2-6mm) ntawm Load Capacity thiab Service Life
Daim ntawv tuab yog qhov tseem ceeb cuam tshuam rau kev ua haujlwm ntawm Corten Steel thauj khoom. Cov hauv qab no yog cov ncauj lus kom ntxaws txog kev cuam tshuam ntawm cov thicknesses (2mm, 3-4mm, 5-6mm) ntawm lub peev xwm thauj khoom thiab kev pabcuam lub neej:
2.1 2mm Thickness: Ultra- Lub teeb tab sis txwv tsis pub-Load- Cov Kabmob
Load peev: Tsawg, tsuas yog haum rau tsis yog -load- cov kabmob xws li cov thawv sab hauv, cov tsheb ciav hlau sab vaj huam sib luag (tsis yog- thaj chaw kev ntxhov siab). Nws tsis tuaj yeem dais loj dynamic loads (piv txwv li, thawv stacking, railway tsheb vibration) thiab nws nquag deformation yog siv nyob rau hauv load- bearing cheeb tsam.
Kev pab lub neej: Corrosion kuj tsis cuam tshuam los ntawm cov tuab, tab sis cov ntawv nyias nyias muaj qhov tsawg dua corrosion. Nyob rau hauv ib puag ncig me me (kev thauj mus los hauv tebchaws), lub neej kev pabcuam tuaj yeem ncav cuag 10-15 xyoo nrog kev kho kom zoo los tiv thaiv corrosion; Nyob rau hauv ib puag ncig hnyav (kev thauj mus los ntawm ntug dej hiav txwv), kev pabcuam lub neej raug txo mus rau 5-8 xyoo vim muaj kev nkag mus sai dua corrosion.
2.2 3-4mm Thickness: Qhov Zoo Tshaj Plaws rau Feem Ntau Cov Load-Cov Kabmob
Load peev: Nruab nrab mus rau siab, haum rau feem ntau load- bearing qhov chaw xws li thawv loj lub cev, railway tsheb sab ncej, thiab underframe auxiliary Cheebtsam. Siab -lub zog Corten Steel (piv txwv li, Q355NQR2) nrog 3-4mm thickness tuaj yeem tiv thaiv lub thawv stacking (txog 8 txheej) thiab tsheb ciav hlau tsheb thauj khoom dynamic, ua tau raws li cov qauv kev nyab xeeb thoob ntiaj teb.
Kev pab lub neej: Zoo tagnrho. Qhov kev tiv thaiv corrosion txaus (3-4mm) sib npaug ntawm tus kheej tiv thaiv xeb txheej tus nqi corrosion (0.01-0.02mm / xyoo). Hauv kev thauj mus los hauv av, kev pabcuam lub neej tuaj yeem ncav cuag 20-30 xyoo; nyob rau hauv ntug hiav txwv thauj, nrog silane impregnation, lub neej kev pab cuam yog 15-20 xyoo. Qhov thickness no ua tiav qhov zoo tshaj plaws sib npaug ntawm lub teeb yuag thiab durability.
2.3 5-6mm Thickness: Hnyav -Lub Luag Haujlwm Load-Cov Kabmob tab sis Kev Sib Haum Xeeb
Load peev: Siab, haum rau hnyav- lub luag haujlwm thauj khoom- cov kabmob xws li cov thawv ntim cov ncej, tsheb ciav hlau tsheb bogie thav duab, thiab chaw nres nkoj thawv gantry crane Cheebtsam. Nws tuaj yeem dais cov khoom hnyav (xws li, ntim ntim ntawm 10 txheej, thauj khoom hnyav) thiab muaj zog tiv thaiv deformation thiab kev co.
Kev pab lub neej: Ntev tshaj plaws, mus txog 30-40 xyoo nyob rau hauv hnyav ib puag ncig, vim muaj corrosion loj. Txawm li cas los xij, qhov hnyav nce ntxiv (4mm vs 6mm: qhov hnyav nce los ntawm 50%), ua rau muaj kev siv zog ntau dua (piv txwv li, kev siv roj ntau ntxiv rau cov tsheb thauj khoom, txo qhov peev xwm ntawm cov tsheb ciav hlau), uas ua rau lub teeb pom kev zoo.
3. Cov lus pom zoo xaiv cov neeg siv khoom txawv teb chaws
Txhawm rau pab cov neeg siv khoom txawv teb chaws xaiv qhov tsim nyog raws li qhov xav tau ntawm qhov project, cov lus pom zoo hauv qab no tau muab:
Rau cov thawv thauj khoom hauv av (tsis yog-coastal) thiab cov tsheb ciav hlau neeg caij tsheb sab: Xaiv3 hli siab -lub zog Corten Steel (A588 Gr.K/S355J2W)+ silane impregnation. Qhov no ua tiav qhov hnyav (txo 10-15% qhov hnyav piv rau 4mm carbon steel) thiab ua kom lub neej ua haujlwm ntawm 20+ xyoo.
Rau cov thawv thauj mus los ntawm ntug dej hiav txwv thiab cov tsheb thauj khoom hauv tsheb ciav hlau (cov kabmob hnyav): Xaiv4 hli Corten Steel (Q355NQR2 / S355J2W)+ hauv zos los tiv thaiv-corrosion txheej ntawm thaj chaw tseem ceeb. Nws sib npaug load peev xwm (nrog 8-txheej stacking) thiab corrosion kuj (15+ xyoo kev pab cuam lub neej nyob rau hauv ntsev tsuag ib puag ncig), thaum tswj qhov hnyav nce nyob rau hauv 5% piv rau 5 hli ntawv.
Rau cov khoom hnyav- cov khoom siv thauj khoom thauj (xws li, chaw nres nkoj thawv gantry crane Cheebtsam): Xaiv5-6 hli Corten Steel (A588 Gr.K)tsuas yog yuav tsum muaj peev xwm thauj khoom hnyav heev. Nws raug nquahu kom ua kom zoo dua cov qauv kom txo cov thickness yog qhov ua tau, tsis txhob muaj qhov hnyav ntxiv.
Hauv cov ntsiab lus, ntsuas lub teeb yuag thiab corrosion tsis kam ntawm Corten Steel rau cov khoom siv thauj khoom yog nyob ntawm kev sib xyaw ua ke ntawm qib siab -lub zog xaiv, kev ua kom zoo ntawm cov qauv thiab cov phiaj xwm tiv thaiv- kev ntsuas corrosion. Xaiv 3-4mm thickness yog qhov kev daws teeb meem zoo tshaj plaws rau feem ntau cov ntawv thov, thaum 2mm thiab 5-6mm yuav tsum raug xaiv raws li cov kev xav tau tshwj xeeb thiab ib puag ncig. Qhov nyiaj tshuav no tsis yog ua tau raws li kev thauj mus los thoob ntiaj teb kev nyab xeeb thiab kav ntev, tab sis kuj tseem pab cov neeg siv khoom txo cov nqi ua haujlwm mus ntev (kev siv hluav taws xob + kev saib xyuas).
