Thaum xaiv qis- huab cua muaj zog- tiv taus Corten Steel (yield zog Ntau dua lossis sib npaug li 235MPa) rau cov haujlwm, ntsuas tus nqi pib yuav khoom thiab ntev- kev ua haujlwm ntev yog qhov kev txhawj xeeb tseem ceeb rau cov neeg yuav khoom feem ntau. Ntawm cov kev xaiv xws li S235J0W thiab S235J2W (ob leeg ua raws li EN 10025-5), S235J2W tus nqi-kev ua tau zoo li cas? Cov ntsiab lus tseem ceeb yog qhov tseeb:S235J2W muab tus nqi zoo tshaj plaws -kev ua tau zoo nyob rau hauv mainstream low- huab cua muaj zog-cov xwm txheej tiv taus- nws zam qhov kev ua haujlwm tsis txaus ntawm S235J0W, thiab tsis muaj siab dua - qib toughness nyob rau hauv qis- cov nqi zog uas yuav tsum tau them tus nqi qis. Hauv qab no yog cov lus qhia ntxaws ntxaws, ua tiav raws li kev tsim khoom siv thiab kev xav tau ntawm daim ntawv thov.
Ua ntej: Yuav ntsuas tus nqi li cas -Kev Ua Tau Zoo ntawm Corten Steel?
Tus nqi -kev ua tau zoo piv (CPR) ntawm no tsis yog hais txog "tus nqi qis"- nws yog ntsuas los ntawm peb qhov loj me: ① Tus nqi pib khoom; ② Tus nqi tu lub neej; ③ Kev ua tau zoo sib xws nrog cov kev xav tau ntawm qhov project. Qib siab -CPR yuav tsum ua kom tau raws li qhov yuav tsum tau ua yam tsis tau them nyiaj ntau dua rau kev ua haujlwm tsis tu ncua.
S235J2W vs Cov neeg sib tw tseem ceeb: Tus nqi -Kev sib piv kev ua tau zoo
Peb tsom mus rau qhov feem ntau qis dua - lub zog lwm txoj hauv EN 10025-5: S235J0W (kub qis dua toughness). Kev sib piv hauv qab no yog ua raws li European cov ntaub ntawv ua lag luam thiab cov tswv yim siv tswv yim:
1. vs S235J0W (Low-Tsub Toughness: 0℃cuam tshuam)
Nqe Sab: S235J0W yog ~ 5-8% pheej yig dua S235J2W hauv thawj qhov khoom. Qhov no zoo li muaj txiaj ntsig zoo rau cov phiaj xwm nyiaj txiag-rhiab heev.
Performance & Lifecycle Tus Nqi Sab: S235J0W tsuas yog lav qhov cuam tshuam toughness ntawm 0 degree, thaum S235J2W ua kom -20℃toughness. Hauv cov cheeb tsam uas muaj lub caij ntuj no kub qis dua 0℃(piv txwv li, Central Europe, siab - thaj chaw siab), S235J0W muaj kev pheej hmoo tawg tawg, ua rau muaj nqi kho lossis hloov pauv. Txawm hais tias nyob rau hauv cov huab cua me me, S235J2W qhov ruaj khov microstructure txo qis corrosion mus sij hawm ntev, txo cov nqi tu lub neej los ntawm ~ 10-15%.
CPR Kev Txiav Txim: S235J2W outperforms. Tus nqi pib me me sib txawv yog offset los ntawm qhov zoo dua qis- qhov kub thiab txias kev cia siab rau lub neej qis dua-S235J0W tus nqi kom zoo dua tsuas yog siv tau rau cov cheeb tsam sov uas tsis muaj sub- xoom kub.
2. Tswv yim CPR Qhov zoo ntawm S235J2W hauv qhov xwm txheej tiag tiag
Mainstream Architectural/Industrial Projects: Rau nyias -gauge facades, railings, thiab lub teeb -load txhawb nyob rau hauv cheeb tsam nrog lub caij ntuj no kub siab tshaj los yog sib npaug rau -20 degree, S235J2W tus nqi pib yog tsim nyog, thiab tsis muaj kev tu ncua ntxiv tom qab cov txheej txheem tiv thaiv xeb-ua tiav "ib qho,{7}} kev ntseeg".
Hla -Tshaj Tawm Kev Ua Haujlwm Hauv cheeb tsam: S235J2W's -20℃toughness npog feem ntau cov huab cua nyob sab Europe (los ntawm yav qab teb mus rau hauv nruab nrab Europe), tso cai rau cov neeg yuav khoom tsim qauv xaiv cov khoom siv thoob plaws ntau txoj haujlwm, txo cov nqi tswj xyuas thiab tsis txhob muaj kev pheej hmoo ntawm kev xaiv S235J0W rau ntau thaj tsam.
Cov Lus Qhia Xaiv Qhov Tseem Ceeb rau Kev Tshaj Tawm CPR
Xaiv S235J2W yog tias koj qhov phiaj xwm ua tau raws li ob qho xwm txheej: ① Yuav tsum muaj tsawg- huab cua muaj zog- cov hlau tsis muaj zog (yield zog Ntau dua lossis sib npaug ntawm 235MPa); ② Kev Pabcuam ib puag ncig kub siab dua lossis sib npaug rau -20℃(qhov xwm txheej feem ntau rau qis- daim ntawv thov muaj zog). Zam S235J0W hauv sub-zero cheeb tsam (kev pheej hmoo ntawm kev ua tsis tiav). Rau ultra- cheeb tsam txias (-30℃los yog qis dua), tsis txhob mus nrhiav tsis muaj- qis dua- qib zog-hloov, hloov mus rau nruab nrab-lub zog S355J2W uas ua raws li EN 10025-5 thiab tsim los rau kev pabcuam kub.
Hauv cov ntsiab lus, S235J2W Corten Steel ua tiav qhov zoo tshaj qhov sib npaug ntawm tus nqi thiab kev ua haujlwm ntawm qis - huab cua muaj zog - cov qib tiv taus raws li EN 10025-5. Nws zam qhov kev pheej hmoo ntawm kev pheej hmoo ntawm kev pheej yig dua (S235J0W), thiab rau ultra- qhov kub thiab txias xav tau tshaj qhov nws muaj peev xwm, hloov kho mus rau nruab nrab- qib zog yog qhov kev daws teeb meem. Qhov no ua rau S235J2W qhov siab -CPR kev xaiv rau feem ntau lub hauv paus qis-lub zog huab cua-resistant steel daim ntaub ntawv.
