S890QL 1Hlau: Txias txias heev-Resistant Siab-Yield Structural Steel
S890QL1 yog tus hwm zoo quenched-tempered siab- tawm qauv hlau raws li EN 10025-6 tus qauv (sib npaug rau Tuam Tshoj Q890), tsim tshwj xeeb rau qhov tsis tshua muaj siab{12}} qhov kub thiab txias. Nws cov qhab-nees txheeb xyuas tau tawg mus rau: "S" (cov qauv hlau), "890" (tsawg kawg yield zog Ntau dua lossis sib npaug rau 890MPa rau 3-50mm daim hlau), "Q" (quenched-tempered tus me nyuam mob), thiab "L1" (ua kom muaj kev cuam tshuam lub zog ntawm {{16}tier)-theres℃feem ntau S890 series.
Chemically, nws yuav tsum tau ultra-tsawg impurity tswj (P Tsawg dua los yog sib npaug rau 0.020%, S Tsawg dua los yog sib npaug rau 0.010%) ntxiv rau cov hom phiaj alloying (xws li, nce nickel cov ntsiab lus) kom stabilize nws microstructure ntawm huab cua txias, tiv thaiv qis -kub brittleness. Mechanically, nws dlhos nrog S890Q/QL hauv lub hauv paus zog: 3-50mm daim hlau tuav ReH Ntau dua los yog sib npaug rau 890MPa thiab Rm=940-1100MPa, thaum 50-100mm daim hlau pom ReH poob siab dua los yog sib npaug rau 830MPa. Critically, nws khaws ntau dua los yog sib npaug rau 30J longitudinal cuam tshuam lub zog ntawm -60℃(27J transversely)-ib tug pib uas S890Q (max -20 degree) thiab S890QL (max -50 degree) tsis tuaj yeem ntsib.
Kev tsim khoom ntawm S890QL1 xav tau kev kho cua sov zoo (tswj quenching / tempering) thiab kev kuaj xyuas nruj, ua rau nws ~ 25% kim dua S890Q. Nws cov ntawv thov yog niche tab sis tsis yog - sib tham tau: Arctic roj kev tshawb nrhiav platforms, alpine pipeline txhawb nqa cov qauv, cov khoom siv hauv ncov qaumteb qabteb, thiab siab -qhov siab siab tub rog tsheb-scenarios qhov kev ua tau zoo nyob rau hauv -60℃tej yam kev mob yog qhov tseem ceeb. Raws li ib qho tshwj xeeb txias- qib tiv taus, nws tsis tshua muaj Tshuag tshaj S890Q / QL tab sis irreplaceable rau huab cua kub tsis tshua muaj engineering.
S890QL1 yog ib qho ultra{2}}lub zog siab quenched thiab tempered steel tshwj xeeb uas tsim los rau qhov chaw txias heev. Nws yog tsuas yog siv nyob rau hauv cov xwm txheej uas yuav tsum tau ob qho tib si qis - kub toughness ntawm -60℃thiab siab zog.Cov ntawv thov tseem ceeb suav nrog:
Polar zog engineering: cov txheej txheem ntawm cov roj drilling platforms thiab kev txhawb nqa thav duab rau cov kav dej hauv cheeb tsam Arctic / Antarctic, uas yuav tsum tau tiv thaiv kev ntxhov siab tsis tu ncua thiab kev pheej hmoo ntawm qis - kub embrittlement nyob rau hauv qhov chaw txias heev.
High-altitude/alpine infrastructure: load-cov khoom siv ntawm cov txuas hniav thiab cov cua turbine yees (hauv siab- qhov siab thiab qis-kub cua ua liaj ua teb) nyob rau hauv ultra- qhov kub thiab txias xws li Qinghai- Tibet Plateau, kom ntseeg tau structural stability nyob rau hauv huab cua huab cua.
Cov cuab yeej siv mining nyob rau hauv cov cheeb tsam txias heev: hydraulic txhawb rau mines thiab mine tsheb compartments nyob rau hauv frigid mining cheeb tsam xws li Siberia thiab Northern Europe, yoog mus rau hnyav loads thiab tej yam kev mob thaum lub sij hawm qis - kub ua hauj lwm.
Dab tsi yog qhov laj thawj tseem ceeb rau xaiv S890QL tshaj S890Q?
S890QL's -50℃cuam tshuam tsis kam (vs. S890Q's -20℃) suits frigid regions zoo li sab qaum teb Europe los yog Russia, tsis txhob kub-kub brittleness.
Thaum twg S890QL1 tsim nyog hloov S890QL?
Rau qhov txias txias (piv txwv li, Arctic tej yaam num), S890QL1's -60℃toughness tiv thaiv tsis ua hauj lwm nyob rau hauv sub-polar ib puag ncig.
Puas yog tag nrho peb qib muaj zog tib yam?
Yog-3-50mm daim hlau tag nrho muaj ReH Ntau dua lossis sib npaug rau 890MPa, tab sis lawv qhov kub tsis tshua muaj zog (tsis yog lub zog) sib txawv.
Puas yog S890QL1 kim dua S890Q?
Yog lawm-S890QL1 tus nqi ~ 25% ntau dua vim yog kev sib tw nruj dua (piv txwv li, ntxiv Ni) thiab qis- ua haujlwm kub.
S890Q puas tuaj yeem hloov S890QL hauv qhov chaw txias?
Tsis yog -S890Q tsis muaj -50℃qhov cuam tshuam, muaj kev pheej hmoo tawg hauv cov huab cua txias.
Cov kev lag luam twg siv S890QL1 feem ntau?
Polar roj platforms, alpine pipeline structures, thiab Arctic mining khoom cia siab rau nws -60℃resilience.