Q960EthiabQ690E yog ob qho tib si hnub qub khoom nyob rau hauv domestic siab -lub zog qis-alloy structural steel system, nrog rau qib "E" kom ntseeg tau tias muaj kev cuam tshuam rau qhov toughness ntawm -40℃. Txawm li cas los xij, ze li ntawm 40% qhov sib txawv ntawm qhov muaj zog tawm los faib lawv ua ob txoj kab sib txawv -ultra- siab - zog thiab siab - lub zog. Tshaj li qhov sib txawv ntawm qhov kev ua tau zoo, ob lub steels kuj tseem qhia qhov tsis sib xws hauv cov txheej txheem kev teeb tsa, kev tsim cov saw hlau, cov qauv kev sib tw ua lag luam, thiab cov lus qhia kev txhim kho yav tom ntej. Qhov kev tshuaj ntsuam no tshawb txog lawv qhov sib txawv tseem ceeb thiab cov nqi lag luam los ntawm ntau qhov macro thiab saib rau yav tom ntej.
Technical Barriers: Los ntawm Kev Tsim Nyog rau Kev Tswj Xyuas Zoo
Qhov kev sib txawv ntawm Q960E thiab Q690E khiav los ntawm tag nrho cov txheej txheem los ntawm smelting mus rau post- ua, thiab yav tas los tau ua ib tug ntau dua technical moat kom sib npaug ultra- siab zog thiab cov khoom stability.
- Q960E: Txhaum Los Ntawm Cov Kev Txwv ntawm Lub Zog -Toughness BalanceQhov kev sib tw loj tshaj plaws ntawm Q960E yog nyob rau hauv kev zam kom tsis txhob tawg tawg thaum ua tiav lub zog ntawm 960MPa. Nyob rau hauv smelting, nws yuav tsum tau txais ob txheej txheem ntawm converter smelting thiab VD nqus degassing, nruj me ntsis tswj tag nrho cov ntsiab lus ntawm phosphorus thiab sulfur hauv qab no 0.035% los tsim "ultra- ntshiab hlau". Thaum lub sij hawm kho cua sov theem, nws xav tau meej quenching ntawm 900 - 950℃thiab qis - kub tempering ntawm 200 - 300℃. Txawm tias qhov kub thiab txias ntawm ± 20℃tuaj yeem ua rau tsis sib xws microstructure thiab txo cov tawv nqaij. Nyob rau hauv cov nqe lus ntawm vuam, nws preheating kub yuav tsum nruj me ntsis tswj ntawm 150 - 200 degree, thiab lub tshav kub input yog txwv rau 15 - 25kJ / cm. Thaum cov kev txwv tsis pub dhau, cov cua sov- thaj tsam cuam tshuam yog qhov ua rau softening, ua rau lub zog poob ntau dua 10%. Tam sim no, tsuas yog ib txhais tes ntawm cov hlau loj loj xws li Baowu Group thiab Wuyang Hlau thiab Hlau tuaj yeem ruaj khov loj{18}} tsim Q960E.
- Q690E: Optimizing stability nyob rau hauv mature txheej txheemQ690E siv txoj hauv kev ntawm kev ntsuas qhov ua tau zoo thiab cov txheej txheem yooj yim. Nws tuaj yeem ua tau raws li qhov yuav tsum tau muaj zog los ntawm TMCP thermo- txheej txheem tswj cov tshuab lossis cov txheej txheem quenching thiab tempering. Nws cov pa roj carbon sib npaug yog tswj tau qis dua 0.47%, uas zam qhov teeb meem ntawm cov kab nrib pleb txias thaum vuam yam tsis muaj kev ua haujlwm nruj heev. Hais txog cov cuab yeej tsim khoom, feem ntau nruab nrab - steel mills tuaj yeem ua tiav kev tsim khoom ruaj khov siv peb - yob txwv mandrel txuas txuas txuas txuas txuas. Lub hom phiaj tseem ceeb ntawm kev tswj xyuas qhov tseeb ntawm qhov tseeb- sab nraud txoj kab uas hla tuaj yeem khaws cia nyob rau hauv ± 0.5%, thiab phab ntsa thickness kam rau ua nyob rau hauv ± 5%, uas yog yooj yim dua rau kev ua tau zoo piv nrog Q960E qhov yuav tsum tau ntawm kev tswj cov austenite grain loj rau 5 - 8μm. Tam sim no, kaum ob lub tsev steel mills suav nrog Angang thiab Tianjin Steel Yeeb Nkab muaj peev xwm rau loj - nplai ntau lawm ntawm Q690E.
Kev Lag Luam Kev Lag Luam thiab Kev Lag Luam Layout: Niche High-End vs Mass Popularization
Qhov sib txawv ntawm cov txheej txheem thev naus laus zis ncaj qha ua rau cov khoom lag luam sib txawv thiab cov khoom lag luam khoom lag luam-xav tau cov qauv ntawm ob lub steels.
- Q960E: Siab -Nqi Kev Lag Luam Niche nrog Kev Xav Tau ZooQ960E tsom rau qhov siab - ntu kawg ntawm cov saw hlau, nrog rau kev thov txhua xyoo hauv tsev tsuas yog kwv yees li 150,000 tons, uas tsawg dua 20% ntawm Q690E. Nws cov neeg siv khoom hauv qab no tau muaj kev sib koom siab hauv cov tuam txhab ua lag luam hauv kev tsim khoom hnyav, xws li Sany Heavy Industry thiab Zoomlion. Piv txwv li, ZAT12000H tag nrho -siv crane siv 28mm-tuab Q960E steel daim hlau rau nws lub ntsiab boom, ua tiav qhov hnyav ntawm 15 tons. Hauv kev ua lag luam, nws tus nqi siab li 18,{16}},000 yuan / tuj, kwv yees li 2.5 npaug ntawm Q690E. Lub voj voog muab khoom yog ntev li 20 - 30 hnub, thiab ntau yam khoom raug kho raws li qhov tshwj xeeb ntawm cov khoom siv, xws li kho cov alloy piv los txhim kho cov mos txwv tsis zoo rau lub teeb armored tsheb.
- Q690E: Kev Lag Luam Loj nrog Ntau Yam Kev Xav TauQ690E yog cov khoom lag luam txha caj qaum hauv kev ua lag luam siab - lub zog steel, nrog kev tsim khoom txhua xyoo hauv tsev muaj peev xwm ntawm 800,000 tons. Nws qhov kev xav tau hauv qab no suav nrog ntau yam kev lag luam xws li engineering machinery, cua zog, thee mining, thiab marine engineering. Piv txwv li, nws yog siv rau hauv kev txhawb nqa hydraulic ntawm cov mines, uas tuaj yeem ua rau muaj kev ua haujlwm tsis zoo rau ntau tshaj 10,000kN thiab txuas ntxiv lub neej kev pab cuam los ntawm 3 - 5 zaug. Hauv 100-meter- theem cua zog yees, nws daim ntawv thov feem ntau tshaj 60%. Tus nqi lag luam ntawm Q690E yog qhov ruaj khov ntawm 11, 000 - 13,000 yuan / tuj, thiab lub voj voog khoom tsuas yog 7 - 14 hnub. Ntau qhov nruab nrab - loj steel mills tuaj yeem tsim nws, thiab cov khoom lag luam yog tus qauv, uas tuaj yeem ua tau raws li cov kev xav tau ntawm kev tsim vaj tsev loj.
Daim Ntawv Thov Kev Pom Zoo: Kev Sib Txuas Ntxiv Ntau dua li kev sib tw
Hauv ntau cov haujlwm loj -, Q960E thiab Q690E tsis yog kev sib koom ua ke tab sis feem ntau siv los ua ke kom ua tiav qhov zoo tshaj plaws ntawm kev ua tau zoo thiab tus nqi.
- Hauv Super High-Rise Buildings: Lub 1000-meter-theem skyscraper's loj loj txhawb txhua kab txais yuav Q960E kom txo tau tus ntoo khaub lig- ntu ntu ntawm kab thiab txuag chaw hauv pem teb. Txawm li cas los xij, rau cov khoom sib txuas thiab cov txheej txheem kev ntxhov siab-kev coj tus kheej, Q690E yog siv rau heterogeneous steel vuam. Qhov kev sib xyaw ua ke no tsis tsuas yog ua kom lub zog tag nrho tab sis kuj txo cov nqi ntawm qhov project ntau dua 15%.
- Hauv Heavy Machinery: Nyob rau hauv lub boom system ntawm ib tug loj -tonnage crane, lub ntsiab kev nyuaj siab- bearing seem txais yuav Q960E kom ua tau lub teeb yuag thiab txhim kho lifting efficiency. Cov ntu ntu xws li lub boom tus Tsov tus tw thiab cov hlua txuas siv Q690E. Raws li cov ntaub ntawv xeem ntawm Zoomlion, daim ntawv thov sib xyaw no tuaj yeem txo qhov hnyav tag nrho ntawm boom los ntawm 10% thaum txo cov nqi tsim khoom los ntawm 20% piv nrog kev siv Q960E nkaus.
- Hauv Marine Engineering: Lub siab hulls thiab qhov tseem ceeb load-cov kabmob sib sib zog nqus- hiav txwv drilling platforms siv Q960E los tiv thaiv ultra-siab siab hauv hiav txwv tob. Rau cov qauv tsim xws li lawj railings thiab auxiliary pipelines, Q690E raug xaiv. Nws zoo heev corrosion kuj tuaj yeem ua tau raws li qhov chaw ua haujlwm hauv hiav txwv, thiab tib lub sijhawm, nws txo qis tag nrho cov nqi yuav khoom ntawm lub platform.
Kev Txhim Kho Yav Tom Ntej: Divergent Paths Tsav los ntawm Kev Thov
Tsav los ntawm cov cai xws li "dual carbon" lub tswv yim thiab kev txhim kho cov cuab yeej tsim khoom lag luam, cov lus qhia kev txhim kho ntawm Q960E thiab Q690E yuav dhau los ua qhov sib txawv.
- Q960E: Mus rau Ntau Qhov Kev Ua Tau Zoo thiab Kev Tshwj XeebLub neej yav tom ntej R & D tsom ntawm Q960E yuav yog qhov kev hloov pauv ntawm ib puag ncig huab cua thiab ua haujlwm hloov kho dua tshiab. Piv txwv li, tsim ib qho kev tiv thaiv rau qis- kub nkig tawg ntawm -60℃rau polar scientific cov cuab yeej tshawb fawb; los yog ntxiv corrosion-resistant alloy cov ntsiab lus kom tau raws li cov kev ua hauj lwm ntawm acidic roj thiab roj teb. Nyob rau tib lub sijhawm, nws yuav sim nkag mus rau thaj chaw tshiab xws li aerospace launch brackets thiab sib sib zog nqus- hiav txwv neeg hlau ncej. Nrog rau qhov nrov ntawm hydrogen txo smelting technology, nws cov pa roj carbon emissions yuav tsum tau txo los ntawm 40%, uas yuav txhim khu nws cov kev sib tw nyob rau hauv high-end khoom teb.
- Q690E: Mus rau Loj-Nqe, Tsawg- Tus Nqi, thiab Kev Txhim Kho NtsuabQ690E yuav tsom mus rau nthuav dav daim ntawv thov scenarios thiab txo cov nqi. Nws tau cia siab tias los ntawm 2030, nws qhov kev thov txhua xyoo hauv tsev yuav ntau dua 1.2 lab tons, ntawm cov ntug dej hiav txwv cua fais fab yuav suav txog 35%. Steel mills yuav ntxiv txhawb cov txheej txheem TMCP los hloov cov txheej txheem quenching thiab tempering, txo cov khoom siv hluav taws xob ntau dua 20%. Tsis tas li ntawd, kev koom ua ke ntawm digital ntxaib thev naus laus zis yuav ua kom luv luv ntawm cov khoom lag luam hloov kho lub voj voog ntawm 30 hnub mus rau 7 hnub, uas tuaj yeem ua tau zoo dua cov kev xav tau ntawm tus kheej ntawm kev lag luam sib txawv xws li txuas hniav thiab siab - kev tsheb ciav hlau ceev bogies.
Dab tsi yog qhov laj thawj tseem ceeb rau tus nqi sib txawv ntawm Q960E thiab Q690E?
Tus nqi sib txawv yog los ntawm qhov sib txawv ntawm cov nqi tsim khoom thiab kev ua lag luam. Q960E yuav tsum muaj cov txheej txheem nyuaj xws li lub tshuab nqus tsev degassing thiab kev kho cua sov, nrog kev tswj xyuas nruj ntawm cov alloy proportions, ua rau cov nqi ntau lawm. Nws tsom mus rau niche siab -kawg lag luam nrog kev thov me me thiab kev tsim khoom. Hauv qhov sib piv, Q690E txais cov txheej txheem tsim khoom lag luam paub tab thiab yooj yim xws li TMCP, uas txo cov nqi ntau. Nws caters rau cov lag luam loj nrog cov kev thov loj thiab cov khoom lag luam txheem. Cov xwm txheej no ua rau Q960E yog kwv yees li 2.5 npaug kim dua Q690E.
Hauv qhov xwm txheej twg Q690E tsis tuaj yeem hloov los ntawm Q960E, thiab vim li cas?
Q690E yog irreplaceable nyob rau hauv loj -scale dav dav dav -cov dej num ua haujlwm uas tseem ceeb rau tus nqi- kev ua tau zoo. Piv txwv li, nyob rau hauv zus tau tej cov hydraulic txhawb nyob rau hauv thee mines thiab zoo tib yam cua zog ntauwd flanges, kev siv Q690E tuaj yeem ua tau raws li qhov yuav tsum tau muaj zog. Hloov nws nrog Q960E yuav tsis txhim kho cov cuab yeej ua haujlwm tau zoo tab sis yuav ua rau tus nqi tsim nyog ntau dua ob zaug. Tsis tas li ntawd, Q690E muaj cov ductility zoo dua thiab cov txheej txheem vuam yooj yim dua, ua rau nws tsim nyog rau cov khoom uas xav tau loj- nplai vuam thiab qee yam yas deformation.
Yuav ua li cas cov kev txawj ntse yuav tsum tau siv rau Q960E kom siv tau ntau dua?
Ob qhov kev ua haujlwm tseem ceeb yog qhov tseem ceeb. Ua ntej, ua kom zoo dua cov txheej txheem vuam kom txo tau nws qhov kev vam khom siab ntawm - cov khoom siv precision, xws li tsim cov khoom siv vuam tshwj xeeb kom txo qhov kub ntawm preheating, yog li txo qhov nyuaj ntawm kev tsim kho. Thib ob, txo cov nqi tsim khoom los ntawm kev tsim kho thev naus laus zis, xws li siv cov khoom siv txuas ntxiv thiab dov kev sib xyaw ua ke kom txo cov txheej txheem ntau lawm. Ntxiv mus, kev txhim kho kev ruaj ntseg ntawm batch ntau lawm kom txo tau qhov kev hloov pauv ntawm cov khoom tuaj yeem txhawb nqa nws daim ntawv thov hauv ntau cov khoom siv dav dav.
Dab tsi cuam tshuam rau kev tsim cov ntaub ntawv tshiab xws li carbon fiber ntau ntawm Q960E thiab Q690E?
Qhov cuam tshuam yuav txawv. Cov ntaub ntawv carbon fiber ntau tuaj yeem nyem Q960E kev lag luam sib koom hauv qee qhov siab -kawg lub teeb yuag zoo li cov dav hlau tshwj xeeb me me vim lawv qhov hnyav dua. Txawm li cas los xij, Q960E tseem muaj qhov zoo ntawm cov nqi thiab kev cuam tshuam, yog li nws yuav nyob twj ywm hauv cov khoom hnyav xws li cranes. Rau Q690E, qhov cuam tshuam tsawg heev. Vim hais tias nyob rau hauv loj -scale engineering teb xws li thee mining thiab txuas hniav, carbon fiber ntau kim heev thiab nyuaj rau tswj, thaum Q690E muaj qhov zoo ntawm cov txheej txheem paub tab thiab tsis tshua muaj nqi tu, uas yog irreplaceable nyob rau hauv cov teb no.
Vim li cas tsuas yog ob peb lub steel mills tsim Q960E ruaj khov?
Kev tsim khoom ruaj khov ntawm Q960E yuav tsum muaj kev ua haujlwm siab heev thiab cov cuab yeej muaj peev xwm. Nws xav tau cov cuab yeej siv siab heev xws li lub tshuab nqus tsev degassing rauv thiab cov kab kev kho cua sov kom paub tseeb tias cov hlau tsis huv thiab qhov sib xws ntawm microstructure. Meanwhile, cov kws kho mob yuav tsum paub meej cov txheej txheem tsis. Qhov sib txawv me ntsis hauv quenching kub lossis alloy piv yuav ua rau cov khoom tsis tsim nyog. Cov qib siab no yuav tsum tau loj- nplai peev thiab ntev- lub sij hawm kev koom ua ke, uas nyuaj rau me me thiab nruab nrab- steel mills kom ua tiav, yog li tsuas yog ob peb lub tuam txhab ua lag luam tuaj yeem tsim Q960E ruaj khov.