Q295gnh yog tus hwm cov txheej txheem hlau phaj engineered rau huab sab nraum zoov detigability, adhering rauGB / T 4171-2008thiabGB / T 1591-2008Cov Qauv . Qhov no ua tiav Alloy ua ke ntawm cov chaw tsheb ciav hlau, thiab cov khoom siv hiav txwv carrosion, acidic dej nag, thiab cov khoom siv ntub dej .
Core Engineering Khoom
Alloy Muaj pes tsawg: Muaj CU ({0.25-0.45%), cr (0.30-0.65%), thiab sau ntom ntom ntom-Qhovoxide txheej uas txo cov nqi corrosion los ntawm2-8 lub sij hawmPiv rau cov pa roj carbon hlau . phosphorus (}}}}}}}}} 12%) ua kom muaj kev sib luag thiab kev sib npaug.
Neeg kho tshuab kev ua tau zoo:
Paib lub zog ntau dua los yog sib npaug rau 295 MPa (tuab tsawg dua lossis sib npaug nrog 24 hli, ua kom muaj peev xwm sib luag dua li 24 hli
Kev cuam tshuam: Ntau dua lossis sib npaug ntawm 34J ntawm -20℃(qib rau 60J
Huab cua & Corrosion tsis kam
Kev tiv thaiv atmospheric: Tsim tus kheej tiv thaiv xeb patina ({} μygen, uas ua raws li cov cheeb tsam muaj kev lag luam nyob rau hauv cov huab cua
UV & Acid Refrantance: Tsis kam UV laus ibIso 4892-3Thiab sulfuric ib puag ncig (70℃50% horso₄) nrog cov nqi corrosion tsawg dua lossis sib npaug rau hauv nroog thiab thaj chaw muaj kev lag luam {3}
Qaug zog: Optimized rau Cyclic Chaw thau khoom nrog qaug zog muaj zog txogRog 80- fil90(Eurocode 3), ua kom muaj kev sib tw hauv cov ntawv thov kev co tsheb kauj vab zoo li railway bridges .
Cov FAQ
1. Dab tsi yog Q295Gnh qauv hlau phaj tsim rau?
Teb:Nws yog engineered rau huab sab nraum zoov nyob rau hauv cov ntawv thov xws li cov tsheb ciav hlau, acidic dej nag, thiab cov cua sov atidospheric .
2. Cov qauv q295nnhgh puas ua raws?
Teb:Nws ua raws li GB / t4171-2008 thiab gb / t 1591-2008.
3. Dab tsi tseem ceeb alloy ntsiab txhim kho Q295Gnh's corrosion tsis kam, thiab li cas?
Teb:
Tooj liab (Cu 0.25-0.45%), chromium (CR 0.30-0.65%), Nickel (NI 0.30.50%):Tsim ib txheej oxide -fooh oxide txheej los ntawm tus nqi corrosion los ntawm 2-8 lub sij hawm piv rau cov pa roj carbon hlau {}}
Phosphorus (P 0.07-0.12%):Txhim kho kom tsis kam rau acidic ib puag ncig thiab chloride ingress .
Tswj cov pa roj carbon (C tsawg dua lossis sib npaug rau 0.12%):Ua kom sawv daws weldability thiab ductility .
4. Dab tsi yog cov khoom siv tshuab ntawm Q295gnh?
Teb:
Paib lub zog:Ntau dua los yog sib npaug rau 295 MPa (rau thickness tsawg dua los yog sib npaug rau 16 hli).
Lub zog tensile:430-560 mpa .
Elongation:Ntau dua los yog sib npaug rau 24% (haum rau cov cua daj cua dub thiab seismic loads) .
Kev Cuam Tshuam:Ntau dua los yog sib npaug rau 34 j ntawm -20℃(qib d), nrog rau ntau dua lossis sib npaug rau cov ntawv thov tseemceeb lossis siab-quismic.
5. Dab tsi huab cua thiab corrosion kuj nta q295gnh muaj?
Teb:
Kev tiv thaiv atmospheric:Cov foos A 50-100μm tuab tus kheej tiv thaiv tus kheej xeb patina, ua raws li kev thaiv kev tawm tsam chloride thiab sulfur dioxide; Corrosion tus nqi tsawg dua lossis sib npaug rau 0 . 1 mm / xyoo hauv 5% ib puag ncig.
UV & Acid Refrchats:Resest UV laus (iso 4892-3) thiab 70℃tsawg dua los yog sib npaug rau 14 mg / cm .
Qaug zog dhau:Optimized rau Cyclic Chaw thau khoom nrog kev ua kom muaj zog ntawm cov rog los txog rau cov rog}}}}}}}}
