Yog tias koj ua hauj lwm nrog weathering steel, koj yuav tau ntsib cov qibS355J0 wb. Qhov no European- cov khoom siv tus qauv, feem ntau sib npaug nrog qhov zoo - paubCOR-TSI A, yog khoom plig rau nws tus kheej - tiv thaiv xeb patina. Tab sis nws qhov kev ua tau zoo tsis yog qhov yuam kev; nws yog precisely engineered los ntawm ib tug tshwj xeeb tshuaj muaj pes tsawg leeg mandated los ntawm lubTS EN 10025-5txheem.
Kab lus no rhuav tshem cov chemistry tseem ceeb ntawm S355J0WP, piav qhia tsis yog "dab tsi" tab sis "vim li cas" tom qab txhua lub ntsiab lus, txhawb nqa koj los qhia thiab txheeb xyuas cov khoom no nrog kev ntseeg siab.
Daim Ntawv Qhia Tshuaj: Cov Lus Qhia Tseem Ceeb
Tus yam ntxwv ntawm S355J0WP yog nws cov pob zeb alloy tsim los tsim cov txheej txheem ruaj khov, ua rau xeb. Cov lus hauv qab no qhia txog cov tshuaj lom neeg tseem ceeb raws li EN 10025-5, uas tsim nws cov huab cua huab cua.
| Element | Qhov tseem ceeb (% los ntawm qhov hnyav) | Lub luag haujlwm tseem ceeb hauv Corten Steel |
|---|---|---|
| Cov pa roj carbon (C) | Qhov siab tshaj plaws0.12% | Tswj lub zog thiab hardness; qis carbon txhim kho weldability. |
| Phosphorus (P) | 0.06% rau 0.15% | Lub ntsiab tseem ceeb uas ua kom nrawm tsim cov patina tiv thaiv. |
| Copper (Cu) | 0.25% rau 0.55% | Qhov tseem ceeb rau atmospheric corrosion kuj; lub hauv paus ntawm weathering steel. |
| Chromium (Cr) | 0.30% rau 1.25% | Txhim kho corrosion kuj thiab pab tsim ib tug ntom, tiv thaiv oxide txheej. |
| Nickel (Ni) | Mus txog0.65%(tej zaum yuav tau teev tseg) | Txhim kho toughness thiab ntxiv rau tag nrho corrosion kuj. |
| Lwm Yam Khoom | Sulfur (S) max ~ 0.035%, Silicon (Si) max ~ 0.75%, Manganese (Mn) max ~ 1.00% | Feem ntau tswj raws li impurities lossis rau metallurgical tswj thaum tsim khoom. |
Lus Cim Tseem Ceeb ntawm Kev Xaiv:Tus qauv tsim raug yogS355J0 wb. Lub "355" qhia qhov tsawg kawg nkaus tawm lub zog nyob rau hauv MPa, "J0" qhia txog tej yam toughness kuaj ntawm 0 degree, "W" stands rau "weathering," thiab "P" qhia cov ntsiab lus phosphorus siab dua rau qib no.
Yog vim li cas qhov tshwj xeeb Chemistry tseem ceeb
Nkag siab txog kev ua haujlwm ntawm cov ntsiab lus no piav qhia txog steel tus cwj pwm thiab kev siv kom zoo:
Lub Patina-Forming Trio (P, Cu, Cr): Phosphorus, tooj liab, thiab chromium ua haujlwm sib koom ua ke. Thaum raug cov voj voog ntub / qhuav, lawv txhawb kev tsim cov txheej tuab, ruaj khov xeb (patina) uas ua kom nruj rau cov hlau substrate. Qhov no patina ua raws li ib tug barrier, dramatically slowing ntxiv corrosion mus rau ib tug tsawg kawg nkaus, kwv yees tus nqi.
Lub zog vs. Weldability: Cov ntsiab lus qis siab tshaj plaws ua kom cov hlau tseem txuas tau yooj yim siv cov txheej txheem txheej txheem, uas yog qhov tseem ceeb rau kev tsim khoom. Lub zog yog es tsis txhob ua tiav los ntawm kev sib xyaw ntawm lwm cov alloys thiab cov txheej txheem tsim khoom.
Daim ntawv qhia kev: Vim nws cov chemistry tshwj xeeb thiab cov khoom, S355J0WP (COR-TEN A) yog qhov tsim nyog rauarchitectural facades, aesthetic cladding, thiab cov qauv siv nrog cov khoom nruab nrab. Rau hnyav-load bearing thawj cov qauv, engineers feem ntau qhiaS355J2W (COR-TEN B), uas muaj qhov sib txawv ntawm cov tshuaj sib npaug optimized rau ntau dua kev cuam tshuam toughness.
Cov kauj ruam ua kom muaj tseeb
Paub qhov specification yog ib yam; kom ntseeg tau tias koj cov khoom siv tau ua raws yog lwm qhov. Ua raws li cov kauj ruam no:
Qhia Precisely: Hauv koj qhov kev txiav txim, ib txwm hais tus qauv tag nrho:S355J0WP raws li EN 10025-5.
Thov daim ntawv pov thawj Mill: Koj yuav tsum tau txais ib qhoEN 10204 Hom 3.1 Mill Test Certificate (MTC)los ntawm koj tus neeg muag khoom. Cov ntaub ntawv kev cai lij choj no los ntawm cov tuam txhab tsim khoom sau qhov tseebKev ntsuas kubtshwm sim rau cov tshuaj muaj pes tsawg leeg ntawm koj cov batch tshwj xeeb, paub meej tias nws ua tau raws li qhov yuav tsum tau muaj nyob rau hauv cov lus saum toj no.
Saib daim ntawv pov thawj: Txheeb xyuas qhov ntsuas qhov ntsuas rauPhosphorus (P), tooj liab (Cu), thiab Chromium (Cr)poob nyob rau hauv cov kev teev tseg. Qhov no yog koj qhov lav ntawm cov khoom siv huab cua muaj peev xwm.
Hauv cov ntsiab lus, kev ua tau zoo ntawm S355J0WP Corten Steel yog qhov tshwm sim ncaj qha ntawm nws daim ntawv qhia tshuaj nruj nruj, raws li tau hais los ntawm EN 10025-5. Los ntawm kev qhia nws kom raug thiab txheeb xyuas cov chemistry los ntawm cov ntawv pov thawj zeb, koj paub tseeb tias koj qhov project tau txais txiaj ntsig los ntawm nws qhov zoo nkauj iconic thiab ntev -lub sij hawm, tsis tshua muaj txij nkawm durability.
