Q620Dyog tus hwm, ultra-siab- lub zog steel qauv tsim los rau qhov xav tau tshaj plaws engineering scenarios. Nws qhov tshwj xeeb sib xyaw ua ke ntawm lub zog tshwj xeeb (620 MPa tawm los) thiab lav qis - qhov kub thiab txias (-20℃cuam tshuam) ua rau nws haum rau cov ntawv thov uas tsis ua haujlwm tsis yog qhov kev xaiv thiab qhov ua kom zoo zog - rau qhov hnyav piv yog qhov tseem ceeb, feem ntau nyob rau hauv ib puag ncig hnyav.
Nov yog qhov tshwj xeeb engineering scenarios qhov twg Q620D tshwj xeeb yog tsim nyog thiab feem ntau cov khoom xaiv:
1. Cov Cheebtsam tseem ceeb hauv Ultra-High-Rise & Mega-Structures
Scenario: Qhov qis dua -theem mega- kab ke, siv lub trusses, thiab outriggers hauv super- cov tsev siab (piv txwv li, tshaj 400-500 meters).
Yog vim li cas Q620D: Lub ntiajteb txawj nqus loj heev thiab cua -vim cov loads yuav tsum tau muaj zog heev kom cov kab ntawv hla -sections tswj tau, khaws cia qhov chaw muaj txiaj ntsig hauv pem teb. Qib "D" toughness ua kom ntseeg tau tias muaj kev ntseeg siab thaum lub sij hawm seismic tshwm sim los yog nyob rau hauv dynamic cua loading, uas muaj peev xwm tsim tsawg - kub- zoo li brittle fracture tej yam kev mob txawm nyob rau hauv nruab nrab huab cua.
2. Cov ntu tseem ceeb ntawm Loj-Span & Heavy-Load Choj
Scenario: Arch ribs ntawm ntev- ncua arch txuas hniav, lub ntsiab girders ntawm hnyav- tsheb ciav hlau txuas hniav, thiab cov pej thuam (pylons) ntawm cov ntaub ntawv- tawg kab hluav taws xob- nyob / ncua kev txuas txuas.
Vim li cas Q620D: Cov khoom siv lub zog siab tso cai rau kev ncua ntev lossis txo tus kheej - hnyav, txhim kho kev tsim kho thiab txo cov nqi hauv paus. Nws qhov -20℃toughness yog qhov tseem ceeb rau cov txuas hniav hauv cov cheeb tsam txias, vim tias cov hlau kub tuaj yeem ncav cuag qhov kub ntawm lub caij ntuj no, thiab cov qauv yuav ua rau muaj kev kub ntxhov thiab qaug zog los ntawm kev khiav tsheb.
3. Heavy-Lub Luag Haujlwm Txawb & Offshore Lifting Equipment
Scenario: Boom and main structural components of ultra-high-capacity crawler cranes (e.g., >1000-tuj muaj peev xwm), tag nrho - av cranes, thiab hnyav-lift offshore installation nkoj.
Vim li cas Q620D: Ua kom lub zog siab tshaj - rau - qhov hnyav piv yog qhov tseem ceeb ntawm no. Lub boom sib zog ua rau kom muaj peev xwm nqa tau ntau dua thiab txav mus los. Cov hlau yuav tsum tiv taus qhov hnyav hnyav, cuam tshuam, thiab qaug zog loads thaum lub sijhawm ua haujlwm, feem ntau nyob rau hauv cov dej hiav txwv uas muaj qhov kub thiab txias.
4. Arctic & Txias -Tebchaws Offshore Platforms
Scenario: Jacket ob txhais ceg, cov nodes tseem ceeb, thiab lawj modules ntawm ntug dej hiav txwv roj / roj platforms nyob rau hauv Arctic, North Hiav txwv, los yog lwm yam offshore qhov chaw txias.
Vim li cas Q620D: Qhov no yog daim ntawv thov classic rau "D" thiab "E" qib steels. Cov qauv ntsib kev hem thawj ua ke: kev pabcuam kub tsis tshua muaj siab, dej hiav txwv corrosive, thiab dynamic yoj / dej khov. Q620D muab lub zog tsim nyog los tiv thaiv cov dej khov thiab lub zog kom tiv thaiv kev tawg ntawm qhov txias.
5. Tshwj xeeb Mining & Hydraulic Structures
Scenario: Txhawb cov qauv rau super- cov excavators loj (xws li cov nyob rau hauv qhib- qhov mines), liners rau siab - taub hau hydropower penstocks, thiab thav duab ntawm ultra-chav kawm mining tsheb.
Vim li cas Q620D: Cov ntawv thov no koom nrog kev sib tw, siab - cuam tshuam cov loads thiab cov khoom zoo li qub. Lub zog siab tswj qhov kev ntxhov siab, thaum lub toughness ua kom muaj kev ncaj ncees hauv kev poob siab. Rau hydropower nyob rau thaj tsam roob, qhov kub tsis tshua muaj ambient muaj ntau.
6. Cov cuab yeej ua tub rog thiab kev tiv thaiv qib siab
Scenario: Cov qauv tsim rau cov tsheb tshwj xeeb, tso tawm platforms, thiab cov tshuab txav mus los uas qhov siab tshaj plaws ntawm kev txav mus los (lub teeb yuag) thiab muaj sia nyob (siab zog / tawv) nyob rau hauv cov xwm txheej hnyav yuav tsum tau ua.
Daim ntawv txiav txim "Q620D Scenario":
Xav txog Q620D thaum TAG NRHO lossis feem ntau ntawm cov xwm txheej hauv qab no tau ntsib:
✅ Cov Loads hnyav: Cov qauv yuav raug nyob ze - txwv - lub xeev zoo li qub lossis kev ntxhov siab.
✅ Qhov hnyav hnyav yog txwv tsis pub: Txo qhov hnyav yog qhov tsim qauv tsav tsheb (xws li, rau kev txav mus los, tus nqi hauv paus, lossis cov khoom siv tau zoo).
✅ Tsawg-Tsuas Kub lossis Dynamic Service Ib puag ncig: Kev pabcuam kub tuaj yeem poob rau -20℃, LOSSIS cov qauv muaj kev ntxhov siab ntau- tus nqi / dynamic loading (uas mechanically mimics qis-kub tej yam kev mob, tsa lub ductile- rau-nkig hloov kub).
✅ High Fabrication Expertise Available: The project team can manage the stringent welding (preheat, low-hydrogen consumables, controlled heat input) and cutting procedures required to preserve its properties.
✅ Lub neej- Kev Cai Lij Choj Tus Nqi: Tus nqi ntawm cov khoom siv tau raug tsim los ntawm kev txuag tag nrho hauv qhov hnyav, kev thauj mus los, kev ua tau zoo, thiab qhov tseem ceeb tshaj plaws, kev pheej hmoo txo qis kev puas tsuaj loj.
Contraindications: Thaum twgTsis yogsiv Q620D
Rau ambient kub, statically loaded lug qhov twg qib qis (Q460D, Q550D) txaus.
Thaum fabrication zoo tswj tsis tuaj yeem lav. Cov vuam tsis zoo tuaj yeem yooj yim degrade nws cov khoom.
Rau cov phaj tuab heev uas dhau los ntawm - cov khoom tuab (Z- kev taw qhia kev ua haujlwm) ua qhov tseem ceeb; xyuas kom meej Q620D qib uas tau txiav txim raws li Z- qib yuav tsum yog xav tau.
Thaum qhov project pob nyiaj yog qhov kev txwv tsis pub dhau yam tsis muaj kev them nyiaj ua haujlwm meej.
Xaus
Q620D yog "cov tub rog tshwj xeeb" cov khoom siv hlau. Nws yog siv nyob rau hauv tshwj xeeb engineering scenarios uas txhais los ntawm kev ua tau zoo heev uas yuav tsum tau: qhov uas thawb lub ciam teb ntawm lub zog, lightness, thiab toughness ib txhij yog tsis yog -negotiable. Nws siv yog qhov kev txiav txim siab txog kev tsim vaj tse, feem ntau pom muaj nyob hauv thaj chaw tsim kho vaj tse, txiav- cov cuab yeej hnyav, thiab cov haujlwm ua haujlwm ntawm qhov tseeb thiab qhov tseeb ntawm ib puag ncig.