Cov qauv dab tsi npog S890Q steel?
S890Q yog qib European qib siab- tawm los- lub zog cov qauv hlau tau teev tseg raws li EN 10025-6 tus qauv. Nws yog quenched (Q) thiab tempered (T) steel tsim rau kev siv siab load qhov twg qhov hnyav txo thiab siab zog yog qhov tseem ceeb.
1. Cov ntsiab lus tseem ceeb
Khoom siv: 1.8940.
Yield zog:Yam tsawg kawg nkaus 890 MPa (rau nominal thicknesses txog 50mm).
Tensile zog:Feem ntau yog nyob nruab nrab ntawm 940-1100 MPa.
Impact Testing:S890Q tshwj xeeb yuav tsum muaj qhov cuam tshuam tsawg kawg nkaus ntawm lub zog ntawm qhov kub tsis qis dua -20 degree. (Ceeb Toom: Ntau yam xws li S890QL thiab S890QL1 raug kuaj ntawm -40℃thiab -60 degree, ntsig txog).
2. Kev siv ntau
Vim nws lub zog siab -rau- qhov hnyav piv, S890Q yog siv rau hauv kev nyab xeeb- tseem ceeb thiab hnyav- lub luag haujlwm kev lag luam:
Lifting & Earthmoving:Booms rau mobile cranes, dumper lub cev, thiab chassis rau kev tsheb loj.
Structure Engineering:Choj Cheebtsam, cov qauv hauv ntug dej hiav txwv, thiab kev txhawb nqa cov txheej txheem.
Lub Zog & Siab Nkoj:Penstocks, kauv rooj rau cov nroj tsuag fais fab, thiab ruaj khov los yog thauj cov tso tsheb hlau luam.
3. Kev tsim khoom & Fabrication
Delivery condition:Dej quenched thiab tempered (+QT) kom ua tau zoo -grained microstructure ntawm bainite thiab tempered martensite.
Ua haujlwm tau:Txawm tias nws lub zog siab, nws yog weldable thiab haum rau bolted los yog riveted lug.
Thermal txiav:Kev tshawb fawb qhia tau hais tias thaum cov nplaim taws txiav ib txwm muaj, laser thiab plasma txiav txoj kev tuaj yeem txhim kho lub neej qaug zog ntawm cov npoo txiav.
S890Q steel feem ntau txhais thiab tswj hwm los ntawm European tus qauv EN 10025-6, uas tshwj xeeb yog npog quenched thiab tempered high-strength qauv steels. Cov qauv no qhia txog qhov yuav tsum tau ua rau cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, cov txheej txheem kuaj, thiab cov xwm txheej xa khoom.
Nov yog cov qauv tseem ceeb thiab cov kev qhia tshwj xeeb siv tau rau S890Q:
1. Cov Khoom Siv Tseem Ceeb
TS EN 10025-6: Kub dov cov khoom ntawm cov qauv hlau - Ntu 6: Cov txheej txheem kev xa khoom rau cov khoom lag luam tiaj tus ntawm cov khoom muaj zog ntawm cov qauv hlau nyob rau hauv cov txheej txheem quenched thiab tempered.
Qhov no yog tus qauv tseem ceeb uas txhais qib "S890Q," nrog rau nws cov qib -qib (xws li, S890QL rau qis-kub toughness).
Nws qhia txog qhov tsawg kawg nkaus lub zog (890 MPa), lub zog tensile, elongation, thiab tej yam toughness yuav tsum tau (xws li, Charpy V-notch tus nqi ntawm -40℃rau S890QL).
2. Cov qauv kuaj thiab ntawv pov thawj ntxiv
EN 10204: Txhais cov ntaub ntawv tshuaj xyuas. Rau S890Q, Hom 3.1 Daim Ntawv Pov Thawj (tshem tawm los ntawm cov chaw tsim khoom lub chaw soj ntsuam ywj pheej) feem ntau yuav tsum tau ua.
TS EN ISO 148-1: Kev ntsuas qhov cuam tshuam ntawm lub pendulum
TS EN ISO 6892-1 Kev ntsuas Tensile
TS EN ISO 6506-1: Brinell hardness test method
3. Tsim & Fabrication Standards (Daim ntawv thov-Specific)
Cov qauv no qhia seb S890Q siv li cas hauv engineering tej yaam num:
TS EN 1993-1-10 (Eurocode 3): Muab cov cai rau xaiv cov qib steel raws li qhov yuav tsum tau ua kom muaj zog, xav txog yam xws li kub, kev ntxhov siab, thiab tuab.
EN 1993-1-12: Txuas ntxiv Eurocode cov cai rau steels mus txog S700 (S890Q tej zaum yuav xav tau kev pom zoo tshwj xeeb lossis kev tsim qauv ua haujlwm).
TS EN ISO 15614-1 Kev tsim nyog ntawm cov txheej txheem vuam
TS EN 1011-2: Cov lus pom zoo rau kev vuam ntawm cov hlau.
4. Cov qauv sib npaug lossis muaj feem cuam tshuam hauv lwm cheeb tsam
ISO 4950-3: Tej zaum yuav suav nrog cov hlau zoo sib xws uas muaj zog quenched thiab tempered steels, tab sis EN 10025-6 yog qhov tseem ceeb tshwj xeeb rau S890Q hauv kev lag luam thoob ntiaj teb.
ASTM A514 / A517 (Tebchaws USA): Cov no yog quenched thiab tempered alloy steel daim hlau nrog cov qib zog zoo sib xws (~ 690-890 MPa tawm los), tab sis tsis muaj qhov sib npaug ASTM ncaj qha uas phim "S890Q" kev faib tawm thiab nws cov qib - qib. A517 Qib 100 yuav yog qhov ua haujlwm hnyav sib npaug hauv lub zog.
5. Kev lag luam-Cov qauv tshwj xeeb
Rau cov ntawv thov tshwj xeeb, cov qauv ntxiv yuav raug siv:
Offshore: DNVGL, EN 10225, lossis API cov qauv.
Cranes: EN 13001, FEM, lossis ISO 8686.
Cov cuab yeej siv siab: EN 10028 (txawm tias S890Q tsis nquag siv rau cov hlab ntsha siab vim muaj kev txwv nruj).
Cov ntsiab lus:
Txhawm rau qhia lossis yuav S890Q, qhov tsawg kawg nkaus yuav tsum tau siv EN 10025-6 nrog rau cov qib uas xav tau (piv txwv li, S890QL rau -40℃cuam tshuam toughness). Daim ntawv pov thawj (EN 10204 Hom 3.1) yog qhov tseem ceeb. Rau cov haujlwm engineering, ua raws li cov qauv tsim (xws li, Eurocode) thiab cov qauv vuam ua kom muaj kev nyab xeeb thiab txhim khu kev qha.Nco ntsoov lees paub tus qauv tseeb nrog tus neeg xa khoom lossis qhov project specifications.
S890Q steel yog dab tsi?
S890Q yog qhov siab heev - lub zog quenched thiab tempered structural steel nrog qhov tsawg kawg nkaus yield zog ntawm 890 MPa, tsim rau huab load- cov ntaub ntawv bearing.
Dab tsi yog cov khoom ntawm S890Q steel?
Nws muaj lub zog tshwj xeeb, zoo toughness ntawm qhov kub thiab txias, thiab weldability nrog cov txheej txheem tsim nyog, txawm hais tias nws yog nkig ntau dua li qis dua - qib steels.
S890Q steel siv nyob qhov twg?
S890Q yog siv rau hauv hnyav- lub luag haujlwm crane booms, cov cuab yeej mining siab heev, siab - kev ua tub rog tsheb, thiab cov khoom siv tshwj xeeb uas muaj zog tshaj plaws - rau - qhov hnyav piv yog qhov tseem ceeb.
S890Q piv rau S690Q li cas?
S890Q muaj lub zog tawm los ntau dua (890 MPa vs . 690 MPa) tab sis qis toughness thiab weldability, ua rau nws tsim nyog rau kev xav tau ntau dua, lub teeb yuag.
Cov txheej txheem vuam dab tsi yuav tsum tau ua rau S890Q?
Vuam S890Q yuav tsum nruj preheating (feem ntau 150-200 degree), qis-hydrogen electrodes, tswj cov cua sov input, thiab tom qab-weld kev nyuaj siab nyem kom tsis txhob tawg.
Puas yog S890Q steel corrosion resistant?
Tsis yog, S890Q tsis yog corrosion- tiv taus thiab yuav tsum muaj cov txheej txheem tiv thaiv xws li pleev xim lossis galvanizing siv rau hauv qhov chaw raug.
Cov qauv dab tsi npog S890Q steel?
Nws yog feem ntau tau teev tseg raws li European tus qauv EN 10025-6 rau quenched thiab tempered high-strength structural steels.
S890Q puas tuaj yeem ua tau yooj yim?
Machining S890Q yog qhov nyuaj vim nws qhov nyuaj thiab lub zog; nws yuav tsum tau siv cov cuab yeej muaj zog, qeeb ceev, thiab ua kom txias txaus.
Tus nqi ntawm S890Q steel phaj yog dab tsi?
S890Q yog kim kim dua li qis dua - qib zog, nrog rau cov nqi sib txawv raws li tuab, ntau, thiab cov ntawv pov thawj yuav tsum tau ua.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
