Ob leeg S690Q thiab S890Q yog quenched thiab tempered zoo - grain structural steels muab rau EN 10025-6, tsis tau lawv yog engineered rau txawv tiers ntawm siab -lub zog tsim. S690Q, nrog qhov tsawg kawg nkaus tawm lub zog ntawm 690 MPa, muab cov pob khoom sib npaug ntawm lub zog, tawv, thiab weldability rau hnyav - cov khoom siv ua haujlwm. S890Q, nrog qhov tsawg kawg nkaus tawm lub zog ntawm 890 MPa, xa tawm kwv yees li 29 feem pua lub zog ntau dua rau cov qauv hnyav, tab sis xav tau kev tswj xyuas nruj dua. Kab lus no sib piv ob qib thoob plaws txhua yam khoom, weldability, machinability, thiab nqi kom engineers tuaj yeem xaiv cov khoom uas phim lawv cov qauv tsim tiag.
Txheej txheem cej luam ntawm S690Q thiab S890Q
S690Q yog qhov zoo-tsim siab- lub zog cov qauv hlau siv rau cranes, cov khoom siv mining, thiab cov qauv sab nrauv, qhov twg cov quenched thiab tempered microstructure muab siab yield zog ua ke nrog kev cia siab tsawg-kub toughness. S890Q txuas rau tib lub tswv yim tsim khoom mus rau qib siab dua thiab tau tshwj tseg rau qhov hnyav hnyav- cov ntawv thov tseem ceeb xws li cov crane booms siab heev, tsheb tub rog, thiab siab - cov tshuab ua haujlwm. Ob qib nqa Q lub npe, txhais tau hais tias lawv raug xa mus rau hauv qhov kub thiab txias, thiab ob qho tib si muaj nyob rau hauv qib -qib xws li QL rau kev txhim kho qis- qhov kub thiab txias ua haujlwm.
Mechanical Property Comparison
S690Q muaj qhov tsawg kawg nkaus lub zog ntawm 690 MPa thiab lub zog tensile ib txwm muaj li ntawm 770 txog 940 MPa, nrog elongation nyob ib ncig ntawm 14 mus rau 16 feem pua. S890Q muaj qhov tsawg kawg nkaus lub zog ntawm 890 MPa, kwv yees li 29 feem pua siab dua, thiab lub zog tensile ntau ntawm 940 txog 1100 MPa, nrog elongation poob mus rau kwv yees li 10 mus rau 12 feem pua. Lub zog siab dua ntawm S890Q los ntawm tus nqi qis dua thiab qhov cuam tshuam qis dua ntawm qhov ntsuas kub tib yam, thiab nws pom tau tias muaj kev cuam tshuam ntau dua rau qhov tsis zoo thiab tawg. Rau cov qauv tsim los ntawm lub zog zoo li qub, S890Q tso cai rau ib ntu me; rau cov qauv tsim los ntawm kev nruj lossis qaug zog, S690Q feem ntau yog qhov kev xaiv zoo dua.
Weldability thiab Fabrication Considerations
Vuam S690Q yog qhov nyuaj tab sis tsim tau zoo, nrog preheat feem ntau nyob rau hauv thaj tsam ntawm 100 mus rau 150 degrees Celsius thiab ceev faj tswj cov cua sov input. S890Q yog qhov nyuaj dua: nws feem ntau yuav tsum tau ua kom sov dua ntawm 150 txog 200 degrees Celsius, nruj dua tswj ntawm qhov kub thiab txias, thiab ua rau muaj kev pheej hmoo siab dua ntawm tshav kub- cuam tshuam thaj tsam softening thiab hydrogen cracking. Cov khoom siv hluav taws xob yuav tsum tau ua kom haum rau qib lub zog, thiab tom qab-weld kev kho cua sov, yog tias siv, yuav tsum tau teev kom zoo kom khaws cov khoom quenched thiab tempered. Nyob rau hauv ob qho tib si, ib tug tsim nyog welding txheej txheem specification yog qhov tseem ceeb.
Machinability thiab Nqi
Ob qib nyuaj rau tshuab piv nrog cov qauv hlau zoo tib yam, tab sis S690Q tuaj yeem ua haujlwm nrog cov cuab yeej tsim nyog thiab kev teeb tsa nruj. S890Q yog qhov nyuaj heev rau lub tshuab: cov cuab yeej hnav yog siab dua, hnyav txiav quab yuam tau koom nrog, thiab clamping ruaj khov nrog cov dej txias txaus yuav tsum tau ua. Nyob rau hauv cov nqe lus ntawm tus nqi, S690Q yog kim tab sis kuj muaj ntau, thaum S890Q yog cov khoom kim heev uas nws alloying thiab ua complexity thawb tus nqi siab dua. Cov ntaub ntawv nyiaj txiag rau S890Q nyob ntawm seb qhov hnyav npaum li cas ua rau cov khoom siv ntau dua thiab cov nqi tsim khoom.
Yuav Xaiv Cov Qib Zoo Li Cas
Xaiv S690Q thaum daim ntawv thov xav tau lub zog siab ua ke nrog kev ua haujlwm zoo, tsim kev siv vuam, thiab tus nqi tsim nyog, xws li cov qauv crane, cov tshuab tsuas, thiab cov khoom siv sab nrauv. Xaiv S890Q tsuas yog thaum txo qhov hnyav yog lub hom phiaj tseem ceeb thiab lub khw muag khoom tuaj yeem tswj hwm cov kev xav tau nruj dua thiab kev ua haujlwm, xws li cov khoom siv telescopic boom thiab cov khoom siv tshwj xeeb. Thaum muaj kev tsis ntseeg, sib piv cov qauv tsim ntawm lub zog - ib - qhov hnyav thiab tus nqi - toj ib - tonne hauv paus, thiab paub meej tias qhov kev xaiv sub- qib rau qhov kev pabcuam kub xav tau.
Cov lus nug nquag
1. Muaj zog npaum li cas yog S890Q dua S690Q?
S890Q muaj qhov tsawg kawg nkaus tawm lub zog ntawm 890 MPa tiv thaiv 690 MPa rau S690Q, uas yog kwv yees li 29 feem pua siab dua.
2. Vim li cas S890Q xav tau ntau preheat?
Qhov siab dua carbon sib npaug thiab hardenability ntawm S890Q ua rau muaj kev pheej hmoo ntawm hydrogen -induced cracking, yog li preheat ntawm li 150 mus rau 200 degrees Celsius feem ntau yuav tsum tau ua ntej welding.
3. S690Q thiab S890Q puas tuaj yeem welded nrog cov txheej txheem txheem?
S690Q tuaj yeem welded nrog zoo- tsim cov txheej txheem tsim nyog, thaum S890Q xav tau kev tswj hwm nruj dua ntawm preheat, cov khoom siv hluav taws xob, thiab cov khoom siv, yog li yuav tsum muaj cov txheej txheem vuam tshwj xeeb.
4. Cov ntawv thov twg haum rau S690Q?
S690Q haum rau cranes, cov khoom siv mining, cov qauv hauv ntug dej hiav txwv, thiab lwm yam hnyav -cov haujlwm ua haujlwm uas sib xyaw ua haujlwm siab nrog lub zog zoo.
5. Cov ntawv thov twg haum rau S890Q?
S890Q haum rau qhov hnyav- cov qauv tseem ceeb xws li cov crane siab heev booms, tsheb tub rog, thiab siab - cov tshuab ua tau zoo uas qhov siab tshaj plaws ntawm ib chav tsev qhov hnyav yog qhov tseem ceeb.
6. S890Q txuag tau npaum li cas piv nrog cov hlau me me?
Cov qib quenched thiab tempered twb txuag txog 50 feem pua qhov hnyav piv rau cov hlau me me rau tib lub load, thiab S890Q tuaj yeem txo qhov hnyav ntxiv 20 mus rau 25 feem pua piv nrog S690Q.