Q460EthiabQ500Eyog ob lub ntsiab E-qib qis- alloy siab- lub zog cov qauv hlau nyob rau hauv 400-500MPa yield zog ntau yam, ob qho tib si lav txhim khu kev qha cuam tshuam toughness ntawm -40℃. Qhov sib txawv ntawm 40MPa nyob rau hauv lub zog tawm los tsis yog ib qho yooj yim cov lej nce, tab sis ib qho kev xav ntawm cov khoom siv sib txawv tsim qhov chaw, engineering daim ntawv thov scenarios thiab tus nqi sib piv. Qhov kev tshuaj ntsuam no tsom rauscenario adaptability, txheej txheem txuam thiab ntev - daim ntawv thov nqi, muab cov ntaub ntawv siv tau rau kev xaiv cov khoom siv engineering hauv qis - qhov kub thiab txias.
Material Design Positioning: Tus nqi -Kev Ua Haujlwm Siab- Lub Zog vs High- Kev Ua Tau Zoo
Qhov sib txawv tseem ceeb ntawm Q460E thiab Q500E yog nyob rau hauv lawv cov qauv pib cov ntsiab lus, uas txiav txim siab qhov sib koom ua ke ntawm cov ntsiab lus hlau, cov txheej txheem tsim khoom thiab kev ua lag luam ua lag luam- tawm.
Q460E: Tus nqi -Cov Khoom Siv Hluav Taws Xob Siab Siab-Lub Zog HlauQ460E yog positioned raws li "general-lub hom phiaj siab- lub zog steel nrog tus nqi siab", thiab nws lub hom phiaj tsim yog ua kom tau raws li qhov yooj yim siab - lub zog thiab qis- qhov kub thiab txias yuav tsum tau ua ntawm engineering tej yaam num thaum txo nqi ntau lawm. Nws adopts aqis-carbon + pa microalloyingformula: cov ntsiab lus carbon yog nruj me ntsis tswj ntawm tsawg dua los yog sib npaug rau 0.20% kom ntseeg tau tias weldability; manganese cov ntsiab lus tsuas yog tsawg dua los yog sib npaug li 1.80% los ua lub luag haujlwm hauv kev daws teeb meem ntxiv dag zog; Tsuas yog ib qho me me ntawm niobium, vanadium thiab titanium ntxiv rau cov nplej ua kom zoo dua qub thiab nag lossis daus ntxiv, tsis ntxiv cov khoom kim heev xws li npib tsib xee thiab molybdenum.
Nws cov txheej txheem ntau lawm yog paub tab thiab yooj yim, feem ntau yog nyob ntawm tusTMCP (Thermo-Cov Txheej Txheem Kev Tswj Xyuas Tshuab). Los ntawm kev tswj lub dov kub thiab txias npaum li cas, ib tug uniform ferrite -bainite dual- theem qauv yog tau, uas ua kom paub tseeb tias lub zog tawm los mus txog siab tshaj los yog sib npaug rau 460MPa, lub -40℃cuam tshuam lub zog yog ntau dua los yog sib npaug rau 27J, thiab lub elongation yog ntau tshaj li 7%. Cov pa roj carbon sib npaug ntawm Q460E yog tsawg dua lossis sib npaug li 0.53%, uas muaj qhov zoo weldability thiab formability, thiab yog haum rau loj-scale batch ntau lawm.
Q500E: Siab -Kev Ua Tau Zoo Tshaj Plaws-Octive High-Strength SteelQ500E yog positioned raws li "siab-kev ua tau zoo siab- lub zog steel rau lub teeb yuag", thiab nws lub hom phiaj tsim yog kom ua tiav lub zog siab dua thaum tswj hwm qhov tsis tshua muaj siab -kub toughness thiab plasticity, thiaj li ua tau raws li qhov xav tau ntawm cov khoom tseem ceeb. Nws adopts iboptimized alloy piv + meej TMCP lossis quenching thiab temperingLub tswv yim: raws li qhov qis- carbon tsim (C Tsawg dua lossis sib npaug li 0.20%), cov ntsiab lus manganese tau tsim nyog nce mus rau Less tshaj lossis sib npaug li 2.00% txhawm rau txhim kho cov tshuaj tiv thaiv kom muaj zog; ib qho nyiaj ntawm chromium ( Tsawg dua lossis sib npaug li 1.50%) thiab npib tsib xee ( Tsawg dua lossis sib npaug li 2.00%) yog ntxiv los txhim kho cov hardenability thiab qis -kub toughness ntawm cov hlau; cov ntsiab lus ntawm microalloy ntsiab xws li niobium thiab vanadium yog precisely hloov mus rau maximize lub nag lossis daus ntxiv zog.
Rau cov phaj tuab (Ntau dua lossis sib npaug li 50mm) lossis siab -kev ua tau zoo, Q500E yuav txais yuavquenching thiab tempering txheej txheem: quenching ntawm 880-920℃kom tau ib qho qauv martensite, thiab tempering ntawm 550-600℃los hloov mus rau tempered martensite-bainite dual-phase qauv. Cov txheej txheem no ua kom ntseeg tau tias lub zog tawm los nce siab dua lossis sib npaug rau 500MPa, -40℃cuam tshuam lub zog tuaj yeem ncav cuag 52J (ntau dua li lub teb chaws tus qauv), thiab qhov elongation yog ntau dua lossis sib npaug li 18%- rhuav tshem cov tsoos kev lag luam tawm ntawm lub zog thiab plasticity. Txawm li cas los xij, qhov zoo tshaj plaws alloy piv thiab cov txheej txheem meej tswj kuj nce tus nqi ntawm Q500E.
Engineering Scenario Matching: General Low-Tsuas Qhov Haujlwm vs Cov Ntsiab Lus Lub Teeb Tseem Ceeb
Qhov sib txawv ntawm kev ua tau zoo thiab tus nqi ua rau Q460E thiab Q500E qhia qhov zoo ntawm qhov sib txawv ntawm engineering scenarios, thiab lawv daim ntawv thov ciam teb yog qhov tseeb.
Q460E: Lub Zog Tseem Ceeb ntawm General Low-Tswj Vaj Huam Sib LuagQ460E yog dav siv nyob rau hauv qis-kub engineering tej yaam num uas yuav tsum tau muaj zog tab sis tsis xav tau hnyav hnyav, cia siab rau nws cov nqi siab ua hauj lwm thiab paub tab technology.
Kev tsim kho vaj tse: Nws yog siv rau kev thauj khoom-cov kabmob ntawm cov loj- ncua kev loj choj, steel qauv thav duab ntawm kev cob qhia kev lag luam thiab cov piers ntawm nroog overpasses nyob rau sab qaum teb alpine cheeb tsam. Piv txwv li, nyob rau hauv ib tug tej yam choj project nyob rau hauv Inner Mongolia, Q460E yog siv rau lub choj lawj steel lub thawv girder, uas muaj peev xwm tiv taus qhov kub thiab txias ntawm -40℃thiab cuam tshuam los ntawm cua thiab daus, thiab cov nqi tsim kho yog 10% qis dua Q500E.
Engineering tshuab: Nws yog siv rau lub chassis ntawm nruab nrab -tonnage loaders, thav duab ntawm me me cranes thiab qhov txuas ntawm cov twj tso kua mis twj tso kua mis. Nws cov formability zoo tuaj yeem ua tau raws li qhov xav tau ntawm cov txheej txheem nyuaj, thiab cov nqi ua haujlwm tsawg.
Cov khoom siv hluav taws xob: Nws yog siv rau cov qauv kev txhawb nqa ntawm av cua zog yees thiab qhov qis - cov kav dej siab ntawm cov roj thiab cov kav dej hauv qhov siab - qhov siab. Nrog rau kev tiv thaiv- txheej txheej corrosion, nws lub neej kev pabcuam tuaj yeem ncav cuag 25 xyoo, ua tau raws li kev ua haujlwm ntawm cov khoom siv hluav taws xob.
Q500E: Cov khoom siv tseem ceeb ntawm Cov Khoom Siv Hluav Taws Xob hauv qis-Qhov chaw kubQ500E yog tsom rau cov khoom tseem ceeb uas xav tau kom ua tiav qhov tsim qauv hnyav thaum tiv taus cov khoom hnyav hauv qhov chaw qis - qhov kub thiab txias, thiab nws cov xwm txheej thov siab dua - tus nqi thiab tshwj xeeb.
Heavy engineering machinery: Nws yog siv rau lub boom ntawm loj excavators, lub ntsiab caj npab ntawm 50-tuj cranes thiab cov hydraulic txhawb txhua kab ntawm thee mines. Piv txwv li, lub boom ntawm Sany SY950H excavator siv Q500E steel kav, uas txo qhov hnyav los ntawm 15% piv nrog Q460E, txhim kho kev khiav hauj lwm yooj ntawm cov cuab yeej, thiab nws zoo heev low - kub toughness yuav hloov mus rau qhov txias ib puag ncig ntawm qhib-qhov mines nyob rau sab qaum teb Tuam Tshoj.
Offshore thiab coastal engineering: Nws yog siv rau cov yeeb nkab pawg ntawm ntug dej hiav txwv cua fais fab thiab cov khoom tiv thaiv ntawm cov chaw nres nkoj terminals. Nws lub zog siab tuaj yeem txo cov phab ntsa tuab ntawm cov yeeb nkab pawg, txo qhov nyuaj ntawm kev thauj mus los ntawm ntug dej hiav txwv thiab kev teeb tsa; nws zoo corrosion kuj tuaj yeem hloov mus rau cov ntsev tsuag ib puag ncig ntawm ntug dej hiav txwv.
Cov haujlwm tseem ceeb ntawm kev tsim kho: Nws yog siv rau kev tiv thaiv - seismic kev txhawb nqa ntawm siab - cov tsev nce siab thiab cov khoom thauj - cov kabmob trusses ntawm cov chaw ntau pob loj hauv thaj tsam alpine. Nws lub zog siab thiab zoo plasticity tuaj yeem tiv thaiv kev ntxhov siab los ntawm kev hloov pauv kub thiab av qeeg, ua kom muaj kev nyab xeeb ntawm cov txheej txheem tseem ceeb.
Kev Ua Haujlwm thiab Kev Tsim Kho Kev Sib Tw: Tsawg Qib thiab Kev Ua Haujlwm Zoo vs Kev Nyuaj Siab thiab Siab Precision
Qhov sib txawv ntawm cov khoom siv ua rau cov kev xav tau sib txawv rau kev ua thiab kev tsim kho, uas cuam tshuam ncaj qha rau lub voj voog thiab cov nqi.
| Kev Ntsuas Qhov Ntsuas | Q460E | Q500E |
|---|---|---|
| Vuam Preheating Kub | 120-150℃(rau daim hlau loj dua lossis sib npaug li 30mm) | 150-180℃(rau cov phaj siab dua lossis sib npaug li 30mm) |
| Cov khoom siv vuam pom zoo | Ib txwm qis- cov khoom siv hydrogen welding (piv txwv li, E5015) | Siab -lub zog qis- cov khoom siv hydrogen welding (piv txwv li, E6015) |
| Vuam Thaum tshav kub kub input | Tsis muaj kev txwv nruj (ntev Tsawg dua lossis sib npaug ntawm 80kJ / cm) | Kev tswj nruj nruj ntawm 50-70kJ / cm |
| Ncej -weld Kev kho cua sov | Tsis xav tau rau cov khoom siv dav dav | Yuav tsum muaj rau cov khoom tseem ceeb -cov kabmob (kev kho mob tshem tawm hydrogen) |
| Cold Bending Radius | 3-4 npaug ntawm phaj thickness (rau daim hlau Tsawg dua lossis sib npaug li 20mm) | 4-5 npaug ntawm phaj thickness (rau daim hlau Tsawg dua lossis sib npaug li 20mm) |
| Txoj kev txiav | Nplaim txiav siv tau rau txhua qhov tuab | Plasma txiav pom zoo rau cov phaj tuab kom txo cov cua sov- thaj tsam cuam tshuam |
Q460E: Kev tsim kho qis, tsim nyog rau Pab Pawg Tsim KhoQ460E muaj kev ua tau zoo heev, thiab kev ua haujlwm thiab kev tsim kho yog yooj yim thiab ua haujlwm tau zoo. Rau cov phaj tuab (Ntau dua lossis sib npaug li 30 hli), qhov kub ua ntej tsuas yog 120-150 degree, thiab cov khoom siv hydrogen tsawg tsawg tuaj yeem siv tau. Tsis muaj kev tshaj tawm -weld heat treatment yog xav tau rau cov khoom siv dav dav, uas ua rau lub sijhawm tsim kho sai heev. Nyob rau hauv cov nqe lus ntawm kev tsim, txias dabtsi yog khoov tuaj yeem nqa ncaj qha rau daim hlau Tsawg dua lossis sib npaug li 20mm nrog lub vojvoog me me, thiab cov nplaim taws txiav yog siv tau rau txhua qhov tuab, uas yog tsim rau pawg tsim kho zoo tib yam.
Q500E: Kev ua haujlwm nyuaj, yuav tsum tau muaj qee yam kev paub dhau losQ500E muaj lub zog ntau dua thiab cov ntsiab lus alloy, yog li nws txoj kev ua haujlwm nyuaj me ntsis siab dua li ntawm Q460E. Thaum lub sij hawm vuam, siab -lub zog qis- cov khoom siv hydrogen vuam yuav tsum tau siv los xyuas kom meej lub zog ntawm qhov sib txuas; lub preheating kub rau tuab daim hlau yuav tsum tau nce mus rau 150-180℃kom tsis txhob txias tawg; lub vuam cua sov input yuav tsum nruj me ntsis tswj kom tsis txhob softening ntawm tshav kub- cuam tshuam cheeb tsam. Rau qhov tseem ceeb thauj khoom-cov kabmob, tom qab-weld hydrogen tshem tawm kev kho cua sov yog xav tau kom tshem tawm qhov kev ntxhov siab. Nyob rau hauv cov nqe lus ntawm kev tsim, xav tau ib tug loj dua txias dabtsi yog khoov vojvoog, thiab plasma txiav yog pom zoo rau cov tuab daim hlau kom txo tau cov cua sov{12}} cuam tshuam cheeb tsam thiab tsis txhob ua degradation.
Tus Nqi- Kev Pab Kom Zoo Tshaj Plaws: Tus Nqi Qis thiab Cov txiaj ntsig ruaj khov vs Tus Nqi Nruab Nrab thiab Kev Xa Rov Qab Siab
Qhov sib txawv ntawm cov txheej txheem tsim khoom thiab cov xwm txheej ntawm daim ntawv thov txiav txim siab tus nqi -cov txiaj ntsig zoo ntawm ob lub hlau, thiab kev xaiv yuav tsum yog raws li qhov kev xav tau ntawm kev ua haujlwm thiab kev siv nyiaj txiag.
Q460E: Cov Nqi Them Nqi thiab Kev Ua Haujlwm Tsawg, Tsim nyog rau tus nqi -Cov haujlwm tseem ceebQ460E tsis ntxiv cov khoom kim heev alloy, thiab nws cov txheej txheem ntau lawm yog paub tab, yog li nws cov nqi lag luam kuj qis, feem ntau 10-15% qis dua Q500E. Tsis tas li ntawd, nws cov nqi ua haujlwm thiab kev tsim kho yog tsawg, uas tuaj yeem tswj tau tag nrho cov nqi ntawm qhov project. Rau qhov qis -kub engineering tej yaam num uas tsis muaj peev xwm, Q460E yog qhov kev xaiv zoo tshaj plaws, uas tuaj yeem ua tau raws li cov kev xav tau ntawm kev ua tau zoo thaum ua tiav cov txiaj ntsig zoo- cov txiaj ntsig piv.
Q500E: Tus Nqi Nruab Nrab, Siab Ntev -Lub Sij Hawm Rov Qab, Tsim Nyog Rau Cov Nqis Siab -Vim Li CasQ500E muaj cov ntsiab lus alloy siab dua thiab kev tswj cov txheej txheem ntau dua, yog li nws cov nqi lag luam yog 10-15% siab dua li ntawm Q460E, thiab nws cov nqi ua haujlwm kuj yog siab dua me ntsis. Txawm li cas los xij, nws lub zog siab thiab lub teeb pom kev zoo tuaj yeem ua rau muaj txiaj ntsig ntev - cov txiaj ntsig zoo: rau kev siv tshuab engineering, nws tuaj yeem txo qhov hnyav ntawm cov khoom, txhim kho cov cuab yeej ua haujlwm zoo thiab txo kev siv zog; rau offshore engineering, nws tuaj yeem txo cov phab ntsa tuab ntawm cov yeeb nkab piles, txo cov nqi tsheb thauj mus los thiab kev teeb tsa; rau cov haujlwm tseem ceeb ntawm kev tsim kho, nws tuaj yeem txhim kho cov qauv kev nyab xeeb thiab txo cov nqi kho. Rau siab - tej yaam num muaj nqis, tus nqi pib dua ntawm Q500E tuaj yeem raug them los ntawm cov txiaj ntsig ntev -.
Cov txheej txheem xaiv cov tswv yim thiab cov lus qhia hloov
Txoj Cai Xaiv: Xaiv raws li qhovCheebtsam load-cov kabmob theemthiabqhov project pob nyiaj siv. Rau qhov tsis yog- cov yam ntxwv tseem ceeb thiab qhov dav dav qis- cov haujlwm kub, Q460E yog qhov nyiam rau kev tswj tus nqi; rau qhov tseem ceeb load-cov kabmob thiab cov haujlwm uas xav tau kev tsim lub teeb, Q500E yuav tsum raug xaiv los xyuas kom meej tias kev ua tau zoo thiab lub sijhawm ntev- tus nqi.
Hloov Sau Ntawv:
Thaum hloov Q460E nrog Q500E: Kho cov txheej txheem vuam (nce preheating kub, siv siab - vuam cov ntaub ntawv, tswj cov cua sov input), thiab nqa tawm tom qab- vuam hydrogen tshem tawm kev kho rau cov khoom tseem ceeb; optimize cov txheej txheem tsim (nce bending radius, siv plasma txiav rau tuab daim hlau).
Thaum hloov Q500E nrog Q460E: Nws tsuas yog siv tau rau cov uas tsis yog- thauj khoom- cov kabmob auxiliary; rau kev thauj khoom- cov khoom siv bearing, nws yog ib qho tsim nyog yuav tsum tau kuaj xyuas los ntawm kev ntsuas lub zog ntawm cov qauv kom tsis txhob muaj kev pheej hmoo ntawm kev nyab xeeb los ntawm lub zog tsis txaus.
Tus Nqi Tswj Tswv Yim: Rau cov phiaj xwm loj -, ib qho kev sib xyaw ua haujlwm tuaj yeem siv tau: siv Q500E rau kev thauj khoom tseem ceeb -cov khoom siv bearing thiab Q460E rau cov khoom siv hluav taws xob, uas tuaj yeem sib npaug kev ua haujlwm thiab tus nqi.
Nyob rau hauv kev tsim kho ntawm cua fais fab yees nyob rau sab qaum teb alpine cheeb tsam, dab tsi yuav tsum tau xav txog thaum xaiv ntawm Q460E thiab Q500E?
Cov ntsiab lus tseem ceeb yog cua turbine lub zog thiab cov nqi siv nyiaj. Rau cov cua turbines ntawm 5MW thiab qis dua, Q460E yog tus nqi ntau dua - zoo. Nws lub zog tawm los tuaj yeem ua tau raws li qhov xav tau ntawm cua thiab dej khov ntawm cov khoom me thiab nruab nrab - cua turbines, thiab nws cov txheej txheem vuam paub tab tuaj yeem txo tus nqi tsim kho. Rau 8MW thiab siab dua cov cua turbines loj, Q500E zoo dua. Nws lub zog siab dua tuaj yeem txo qhov tuab ntawm phab ntsa ntauwd, txo qhov hnyav tag nrho ntawm tus pej thuam, txo qhov nyuaj ntawm kev thauj mus los thiab kev teeb tsa hauv thaj chaw roob alpine, thiab nws qhov zoo heev uas tsis tshua muaj siab - qhov kub thiab txias tuaj yeem tiv taus qhov hnyav hnyav rau lub sijhawm ntev.
Cov teeb meem dab tsi yuav tshwm sim yog tias Q460E siv es tsis txhob Q500E los ua kom lub zog loj ntawm excavators?
Ob qhov kev pheej hmoo loj yuav tshwm sim. Ua ntej, load tsis txaus -cov kabmob muaj peev xwm. Lub boom ntawm loj excavators yuav tsum tau tiv thaiv loj excavation rog. Q460E lub zog tawm los yog 40MPa qis dua li ntawm Q500E. Ntev - siv sijhawm ntev tuaj yeem ua rau deformation lossis txawm tias tawg ntawm qhov tawg. Qhov thib ob, qhov tsis ua tiav ntawm lub teeb hnyav. Tus qauv tsim ntawm cov excavators loj siv Q500E los txo qhov hnyav. Hloov nws nrog Q460E txhais tau tias nce lub thickness ntawm lub boom kom tau raws li lub zog yuav tsum tau, uas yuav ua rau kom lub zuag qhia tag nrho qhov hnyav ntawm lub excavator, txo nws cov lag luam yooj thiab roj efficiency, thiab txawm yuav cuam tshuam qhov sib txuam ntawm lwm yam khoom.
Vim li cas qhov tseeb qis - qhov kub thiab txias cuam tshuam lub zog ntawm Q500E ntau dua li qhov yuav tsum tau ua, thaum Q460E ua tau raws li tus qauv?
Yog vim li cas nyob rau hauv qhov sib txawv ntawm qhov chaw tsim khoom thiab kev nqis peev txheej txheem. Q500E yog nyob rau hauv siab -kawg tej yaam num tseem ceeb, qhov twg qhov chaw nyab xeeb siab dua. Cov neeg tsim khoom yuav ua kom zoo dua qhov sib piv ntawm cov alloy, ntxiv ntau cov nickel thiab chromium cov ntsiab lus, thiab txais yuav cov tshuab nqus tsev degassing kom txo tau cov impurities, yog li txhim kho qhov qis - kub toughness deb tshaj tus qauv. Q460E yog positioned raws li tus nqi - cov khoom siv tau zoo. Nws qhov kev tsim khoom tsom mus rau qhov ntsuas qhov ua tau zoo thiab tus nqi. Nws tsuas yog yuav tsum tau ua kom tau raws li qhov tsawg kawg nkaus lub zog tus qauv los ntawm cov pa microalloying thiab tswj cov txheej txheem dov thiab txias, uas tuaj yeem ua tau raws li qhov xav tau ntawm cov haujlwm dav dav thaum tswj cov nqi tsim khoom.