S890Qyog ib qho ultra-siab- lub zog, cov qauv hlau phaj uas yog quenched thiab tempered (Q) raws li European tus qauvTS EN 10025-6. Nws yog tsim los rau hnyav- cov ntawv siv lub luag haujlwm uas qhov siab load- cov kabmob muaj peev xwm thiab qhov hnyav txo yog qhov tseem ceeb, xws li hauv cov khoom siv mining, crane booms, thiab cov qauv choj.
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S890QTshuaj muaj pes tsawg leeg |
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Qib |
Cov ntsiab lus Max (%) |
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C |
Si |
Mn |
P |
S |
N |
B |
Cr |
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S890 Q |
0.20 |
0.80 |
1.70 |
0.020-0.025 |
0.010-0.015 |
0.015 |
0.005 |
1.50 |
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Cu |
Mo |
Nb |
Ni |
Ti |
V |
Zr |
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0.50 |
0.70 |
0.06 |
2.0 |
0.05 |
0.12 |
0.15 |
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Qib |
S890Q Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
Min Impact Zog
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S890 Q |
mm |
Min Mpa |
Mpa |
Tsawg% |
-20 |
30J |
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3<> |
890 |
940-1100 |
11 |
-20 |
30J |
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50<> |
830 |
880-1100 |
11 |
-20 |
30J |
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100<> |
800 |
820-1000 |
11 |
-20 |
30J |
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Kev ua haujlwm
1. Txiav & Ntug Npaj
S890Q tuaj yeem ua tiav siv ob qho tib si thermal thiab mechanical txoj kev.
Thermal Cutting: Laser, plasma, thiab nplaim taws txiav yog ib txwm muaj.
Laser txiav: Pom zoo rau kev ua tau zoo dua thiab kev ua haujlwm zoo dua.
Preheating rau Txiav: Rau phaj thicknesses siab tshaj 30 hli, nws yog ib advisable mus preheat rau 100-200℃ua ntej thermal txiav los xyuas kom meej txias tawg.
Kev Txiav Txias Txias: Kev txiav dej, sawing, lossis txiav tuaj yeem siv los ua kom tsis txhob tsim lub tshav kub cuam tshuam (HAZ).
2. Cov Lus Qhia Vuam
S890Q yog tsim los rau zoo weldability, tab sis nws lub zog siab yuav tsum tau tswj nruj:
Preheat kub: Feem ntau pom zoo kom nyob nruab nrab ntawm 100℃thiab 200 degree, tshwj xeeb tshaj yog rau thicknesses tshaj 30 hli los yog nyob rau hauv ib puag ncig hauv qab no 5 degree.
Cov Khoom Siv Filler: Siv cov khoom siv qis-hydrogen electrodes (piv txwv li, E11018 lossis zoo sib xws high-cov khoom siv zog) los tiv thaiv hydrogen-induced cracking.
Interpass Temperature: Yuav tsum tau saib xyuas kom tsis txhob muaj cov cua kub ntau dhau, uas tuaj yeem ua rau cov tempered microstructure thiab txo lub zog.
3. Kev tsim & khoov
Cold forming: Txuj rau S890Q, feem ntau ua ntawm qhov kub thiab txias hauv qab qhov kev ntxhov siab -relieving range (kwv yees . 530-580℃).
Kev Ua Kub Kub: Yog tias ua tiav ntawm 700℃thiab 1050 degree, cov hlau yuav tsum tau rov qab -quenched thiab tempered tom qab ntawd kom rov qab tau nws cov khoom qub qub.
Bending Radius: Vim nws lub zog siab, qhov loj dua dabtsi yog khoov radii thiab cov xovxwm ntau dua yuav tsum tau muab piv rau cov qauv me me.
4. Machining
S890Q yog qhov nyuaj rau lub tshuab dua li cov hlau me me vim nws qhov nyuaj (feem ntau 300-400 HBW).
Tooling: Siv cov cuab yeej ua haujlwm siab -carbide nrog cov txheej txheem siab heev.
Lub tswv yim: Tswj kom muaj kev txiav nrawm thiab ua kom txias txaus los tswj cov cua sov thiab tiv thaiv cov cuab yeej hnav.
daim ntawv thov
1. Cov khoom nqa thiab tuav
Crane Booms: Siv dav rau txawb, loader, thiab ntauwd crane booms kom muaj peev xwm ncav cuag ntau dua thiab hnyav dua.
Lifting Jibs: Nws lub zog muaj zog (890 MPa) ua rau kev tsim cov duab sib dua, nruj dua telescopic jibs.
Forklift Parts: High-load structural components for heavy-duty forklifts and telehandlers.
2. Kev thauj mus los hnyav thiab tsheb
Los ntawm kev hloov qis dua -qib steels nrog thinner S890Q daim hlau, cov tuam txhab tuaj yeem nce tsheb thauj khoom:
Truck Chassis: Siv nyob rau hauv lub ntsiab ncej ntawm cov tsheb thauj khoom hnyav thiab cov tsheb thauj khoom kom txo tau qhov hnyav thiab txhim kho roj efficiency.
Dumper Lub Cev: Kev sib xyaw ua ke rau hauv cov khoom thauj -cov kabmob ntawm lub log hluav taws xob cov tsheb thauj khoom thiab hnyav- lub luag haujlwm mining trailers.
3. Mining thiab Siv Machinery
S890Q muab cov kav ntev uas xav tau rau cov neeg kho tshuab kev ntxhov siab ntawm cov peev txheej:
Cov Khoom Siv Hauv Ntiaj Teb: Cov khoom tseem ceeb rau excavators, loaders, bulldozers, thiab hluav taws xob shovels.
Mining Infrastructure: Siv nyob rau hauv thee mine hydraulic txhawb nqa thiab hnyav- lub luag haujlwm conveyor tshuab.
4. Structure Engineering thiab Infrastructure
Hauv kev tsim vaj tsev hauv pej xeem, S890Q yog siv qhov chaw hnyav lossis qhov ntev yuav tsum tau:
Txuas hniav thiab Trestles: Qhov zoo tshaj plaws rau cov neeg siv khoom thauj khoom loj, tso cai rau kev ncua ntev thiab txo cov khoom siv.
Cov skyscrapers: Siab- lub cev pob txha muaj zog rau siab - cov tsev nce siab thiab cov pej thuam uas qhov chaw -txuag (txhua kab) tau txais txiaj ntsig.
Offshore Structures: Siv nyob rau hauv offshore drilling rigs thiab kev txhawb nqa rau offshore cua turbines.
5. Lub zog thiab lub nkoj siab
Pressure Piping: Kev sim thiab pom zoo siv rau hauv kev tsim cov hlab ntsha thiab cov kav dej hauv siab - ib puag ncig siab.
Transmission Towers: High-voltage towers thiab fais fab faib cov qauv.
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.
S890Q steel siv rau dab tsi?
S890Q yog lub siab - lub zog quenched thiab tempered structural steel. Nws yog dav siv nyob rau hauv hnyav machinery, crane booms, offshore lug, thiab loj steel tsim. Nws lub zog tawm los siab tso cai rau cov neeg tsim qauv kom txo cov khoom tuab thiab qhov hnyav tag nrho thaum tuav cov qauv kev ncaj ncees thiab kev nyab xeeb hauv cov khoom hnyav.
Dab tsi yog cov khoom tseem ceeb ntawm S890Q?
S890Q feem ntau muaj qhov tsawg kawg nkaus lub zog ntawm 890 MPa thiab zoo toughness ntawm qhov kub thiab txias. Nws muaj lub zog tensile siab, zoo heev weldability, thiab zoo dabtsi yog khoov thiab tsim cov yam ntxwv. Cov khoom no ua rau nws tsim nyog rau cov ntawv thov uas xav tau lub zog siab thiab kev ntseeg siab.
S890Q ua tiav nws lub zog siab li cas?
S890Q ua tiav lub zog siab los ntawm cov txheej txheem quenching thiab tempering. Tom qab kub dov, cov hlau yog txias sai heev los tsim ib qho nyuaj martensitic qauv, ces reheated rau ib tug qis kub los txhim kho toughness thiab txo brittleness. Qhov kev kho cua sov no ua rau muaj txiaj ntsig zoo -grained microstructure nrog lub zog siab thiab zoo ductility.
Cov qauv dab tsi txhais tau tias S890Q steel?
S890Q yog txhais los ntawm European cov qauv xws li EN 10025-6, uas suav nrog cov qauv hlau muaj zog. Tus qauv qhia cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab cov khoom xa tuaj. Kev ua raws li EN 10025-6 ua kom zoo ib yam thiab kev ua tau zoo thoob plaws cov tuam txhab thiab cov ntawv thov sib txawv.
Dab tsi yog cov tshuaj muaj pes tsawg leeg ntawm S890Q?
S890Q muaj cov pa roj carbon tsawg los xyuas kom muaj kev sib txuas, nrog rau manganese, chromium, molybdenum, thiab npib tsib xee. Cov alloying ntsiab no txhim kho hardenability, lub zog, thiab toughness. Ib qho me me ntawm niobium, vanadium, thiab titanium tuaj yeem raug ntxiv rau cov nplej ua kom zoo dua qub thiab ntxiv dag zog ntxiv.
Puas yog S890Q haum rau vuam?
Yog lawm, S890Q feem ntau haum rau vuam, tab sis cov txheej txheem tsim nyog yog qhov tseem ceeb. Preheating thiab interpass kub tswj pab tiv thaiv txias cracking. Tsawg- cov khoom siv hydrogen vuam tau pom zoo. Nrog rau qhov raug vuam tsis zoo, S890Q tuaj yeem koom nrog kev ntseeg siab thaum tuav nws lub zog siab thiab tawv.
Yuav ua li cas preheating rau vuam S890Q?
Preheating kub rau S890Q nyob ntawm qhov tuab, tswj, thiab qib hydrogen. Hom preheat yog li ntawm 100 txog 200 degrees Celsius. Thicker seem los yog siab ceev yuav tsum tau preheat ntau dua los txo cov cua txias thiab tsis txhob hydrogen-induced cracking nyob rau hauv lub tshav kub- cuam tshuam cheeb tsam.
Dab tsi yog cov txheej txheem vuam siv rau S890Q?
Cov txheej txheem vuam ntau rau S890Q suav nrog submerged arc vuam, roj hlau arc vuam, thiab tiv thaiv hlau arc vuam. Cov txheej txheem no tuaj yeem muab cov fusion zoo thiab cov khoom siv kho tshuab thaum sib xyaw nrog cov khoom siv tsim nyog. Vuam yuav tsum ua raws li cov txheej txheem tsim nyog los xyuas kom meej qhov sib koom ua ke muaj zog thiab toughness.
S890Q ua haujlwm li cas hauv qhov chaw qis -kub?
S890Q nthuav tawm zoo toughness ntawm qhov kub thiab txias, feem ntau kuaj ntawm rho tawm 40 degrees Celsius. Nws zoo -grained microstructure thiab tempered martensite muab kev tiv thaiv rau nkig tawg. Qhov no ua rau nws tsim nyog rau kev siv offshore thiab arctic qhov twg cov mob khaub thuas muaj ntau.
Qhov txawv ntawm S890Q thiab S690Q yog dab tsi?
Qhov sib txawv tseem ceeb yog lub zog tawm los: S890Q muaj 890 MPa, thaum S690Q muaj 690 MPa. S890Q muaj lub zog ntau dua tab sis yuav tsum tau ua tib zoo vuam thiab tuav ntau dua. S690Q yog yooj yim rau txheej txheem thiab vuam. Kev xaiv cov khoom yog nyob ntawm qhov xav tau ntawm kev thauj khoom thiab kev txiav txim siab fabrication.