Rau cov haujlwm uas muaj S335J0WP Corten Steel nyob rau hauv siab - qhov kub thiab txias ib puag ncig - xws li cov chaw tsim khoom siv hluav taws xob, siab - cov khoom siv hluav taws xob hauv tsev ua haujlwm kub, lossis nyob ze lub tshuab tso pa tawm - nkag siab txog nws qhov ruaj khov ntawm 200-500℃yog qhov tseem ceeb kom tsis txhob muaj kev ua haujlwm tsis zoo. Ntau tus neeg yuav khoom xav tsis thoob yog tias huab cua no - cov hlau tsis muaj zog tuaj yeem khaws lub zog txaus thiab ductility nyob rau hauv qhov kub siab ntev. Txawm li cas los xij, raws li S335J0WP tsis yog qib qauv, tsis muaj cov lus qhia ua haujlwm siab - ntsuas kub. Dab tsi yog qhov tseeb ntawm qhov kub thiab txias, thiab yuav ua li cas siv nws kom nyab xeeb? Lub ntsiab lus xaus ua ntej:S335J0WP tswj kev ruaj ntseg ntawm 200-350℃tab sis nthuav tawm kev ua haujlwm tseem ceeb ntawm 350-500 degree; Kev siv mus sij hawm ntev tshaj 350℃tsis pom zoo. Cov ntsiab lus tseem ceeb: S335J0WP tsis tau teev nyob rau hauv EN 10025-5 (tus qauv tseem ceeb nyob sab Europe rau Corten Steel). Hauv qab no yog cov lus qhia ntxaws ntxaws, pov thawj-raws li kev puas tsuaj los ntawm European steel kev ua tau zoo ntawm qhov kub thiab txias thiab kev ua lag luam.
Lub ntsiab lus tseem ceeb: Qib Nature & Siab -Tsev Kawm Txuj Ci
Txhawm rau kom ntseeg tau tias muaj txiaj ntsig ntawm kev tshuaj xyuas, ob lub ntsiab lus tseem ceeb yuav tsum tau qhia meej ua ntej:
Qib Inference: Raws li European steel naming conventions, S335J0WP yog nruab nrab - tsis tshua muaj zog Corten Steel (yield zog ~ 235-}335MPa) nrog "W" ( huab cua tsis kam), "P" (thermo- tshuab dov), thiab "J0" (20℃J0) toughness ntau dua 2. Nws ua raws li EN 10025-5's design logic rau huab cua-resistant steels tab sis tsis muaj kev cai txheem.
Siab -Tub kub ruaj ntseg txhais: Rau cov qauv hlau, siab - qhov kub thiab txias yog hais txog kev muaj peev xwm khaws cov khoom siv kho tshuab (yield zog, tensile zog, ductility) thiab cov qauv kev ncaj ncees nyob rau hauv lub sij hawm thermal raug. Ib tug universal zoo ntawm qis / nruab nrab-lub zog steels: lawv lub zog txo thaum kub nce, thaum ductility thawj zaug tseem nyob ruaj khov ces poob lawm - txoj cai no ncaj qha tswj S335J0WP qhov kev ua tau zoo ntawm 200-500℃.
Siab -Tsuas Muaj Kev Ruaj Ntseg los ntawm Qhov Kub Kub (200-500 degree)
Raws li qhov siab -cov ntaub ntawv ua haujlwm kub ntawm qhov nruab nrab zoo sib xws- huab cua tsis muaj zog- cov hlau tsis muaj zog (EN 10025-5 series) thiab kev ua lag luam, peb suav tias S335J0WP qhov ruaj khov nyob rau ob lub sijhawm kub tseem ceeb (rau kev siv nkaus xwb; cov ntaub ntawv zaum kawg yog nyob ntawm cov ntaub ntawv ntsuam xyuas tus neeg muag khoom):
1. 200-350℃: Txaus siab rau qhov luv luv - mus rau - nruab nrab -Tsev siv sijhawm
Kev ua tau zoo: Tawm lub zog thiab tensile zog txo me ntsis (10-20% qis dua qhov ntsuas kub hauv chav). Ductility (elongation) tseem ruaj khov (Ntau dua lossis sib npaug li 20%), thiab tsis muaj qhov pom tseeb thermal deformation lossis nkig nyiam. Cov huab cua-resistant alloy txheej (Cu / Cr) tseem nyob twj ywm, tsis muaj oxidation ceev.
Siv tau Scenarios: Haum rau luv luv -rau- nruab nrab- lub sij hawm (tsawg dua lossis sib npaug li 8 teev / hnub) siab - qhov kub thiab txias, xws li cov khoom siv hluav taws xob nyob ze ntawm cov chaw ua khoom siv hluav taws xob (tsis yog- thaj chaw cua sov ncaj qha), siab - qhov chaw ua haujlwm kub, lossis cov khoom siv hluav taws xob tso tawm. Tsis tas yuav muaj kev tiv thaiv thermal ntxiv yog tias lub sijhawm raug tswj tau.
2. 350-500 degree: Kev ua haujlwm tseem ceeb poob qis
Kev ua tau zoo: Yield zog poob sharply (30-50% qis dua chav tsev kub), thiab tensile zog txo los ntawm 25-40%. Ductility pib poob qis (elongation Tsawg dua lossis sib npaug li 18%), thiab cov khoom yuav ua rau thermal creep (mus tas li deformation nyob rau hauv load). Tsis tas li ntawd, txheej txheej oxide saum npoo tuaj yeem loj hlob sai, ua kom muaj zog corrosion thiab ua rau cov txheej txheem xeb tiv thaiv kev ncaj ncees.
Siv tau Scenarios: Tsuas yog tsim nyog rau cov uas tsis yog- thauj khoom- cov kabmob uas muaj qee zaus siab - qhov kub thiab txias (tsawg dua lossis sib npaug li 2 teev / hnub), xws li cov hniav cladding nyob deb ntawm qhov chaw tshav kub ncaj qha. Load-cov kabmob (piv txwv li, cov kab hluav taws xob txhawb nqa) yuav tsum tsis txhob siv nyob rau hauv qhov kub thiab txias no - qhov kev pheej hmoo ntawm kev tawg yog siab heev.
Cov lus pom zoo rau kev thov rau siab -Tsuas yog ib puag ncig
Kev ntsuas kub nruj: Zam kev siv sijhawm ntev -S335J0WP hauv ib puag ncig saum 350℃. Yog tias qhov ntsuas kub ua haujlwm siab tshaj 350 degree, hloov nws nrog cov cua sov-cov hlau tsis muaj zog (piv txwv li, P235GH, P265GH ib EN 10028) uas tau tsim tshwj xeeb rau kev kub siab - kev pabcuam kub.
Kev Tiv Thaiv Kev Kub Ntxhov: Rau cov khoom nyob rau hauv 200-350℃ib puag ncig, siv cov txheej txheem kub-resistant rwb thaiv tsev (xws li, ceramic fiber coatings) kom txo tau cov thermal raug. Qhov no slows lub zog degradation thiab ncua kev pab cuam lub neej.
Txo Load Stress: Yog siv nyob rau hauv 200-350℃load-bearing scenarios, derate tus tsim load los ntawm 20-30% los them rau lub zog me ntsis poob. Tsis txhob dynamic loads (xws li, kev co) uas exacerbate thermal qaug zog.
Cov Txheej Txheem Kev Tshawb Fawb Txog Kev Muag Khoom
Thov kom paub meej Cov Ntaub Ntawv Cov Ntaub Ntawv (MDS) thiab siab- ntsuas qhov ntsuas kub ntsuas los ntawm cov chaw muag khoom, qhia meej meej cov txiaj ntsig, lub zog tensile, thiab cov khoom siv hluav taws xob ntawm qhov ntsuas qhov ntsuas kub (xws li 300 degree, 400℃). Tsis lees txais cov ntaub ntawv yam tsis muaj kev pov thawj no.
Qhia meej nrog cov neeg muag khoom seb "S335J0WP" yog qhov yuam kev typographical (xws li, npaj S355J0WP, tus qauv EN 10025-5 qib nrog kev kwv yees ntau dua qhov kub thiab txias raws li cov ntaub ntawv qib zoo sib xws).
Hauv cov ntsiab lus, S335J0WP Corten Steel lub siab - qhov kub thiab txias nws txawv ntawm qhov kub thiab txias: tau txais ntawm 200-350℃rau kev tswj tau, tab sis tsis ntseeg siab ntawm 350-500℃. Tus yuam sij rau kev nyab xeeb daim ntawv thov yog nruj me ntsis txwv qhov kub ntawm qhov kev pab cuam, txais yuav cov kev tiv thaiv thermal, thiab xyuas cov ntaub ntawv kev ua tau zoo nrog cov neeg muag khoom. Rau qhov kub siab tshaj 350 degree, hloov mus rau tshwj xeeb kub-resistant steels yog qhov kev xaiv zoo tshaj plaws.
