S690Qyog lub siab -lub zog, quenched thiab tempered structural steel qib uas yog ib feem ntawm S690 series, paub txog nws zoo heev ua ke ntawm siab yield thiab tensile zog, zoo toughness, thiab weldability. Nws yog feem ntau siv rau hauv cov ntawv hnyav- cov haujlwm xws li cov cuab yeej nqa loj, siab- nce lub tsev tsim, offshore platforms, thiab mining machinery, qhov kev ua tau zoo ntawm cov khoom hnyav thiab hnyav yuav tsum tau ua. Cov hlau ua tiav nws cov khoom los ntawm kev tswj quenching thiab tempering txheej txheem, uas refines lub microstructure thiab xyuas kom meej txhua yam yam ntxwv nyob rau hauv lub thickness ntawm cov khoom.
S690QTshuaj muaj pes tsawg leeg | ||||||||
Qib | Cov ntsiab lus Max (%) | |||||||
C | Si | Mn | P | S | N | B | Cr | |
S690 Q | 0.20 | 0.80 | 1.70 | 0.020-0.025 | 0.010-0.015 | 0.015 | 0.005 | 1.50 |
Cu | Mo | Nb | Ni | Ti | V | Zr |
| |
0.50 | 0.70 | 0.06 | 2.0 | 0.05 | 0.12 | 0.15 |
| |
Qib | S690Q Mechanical Property | |||||
Thickness | Yield | Tensile | Elongation | Min Impact Zog
| ||
S690 Q | mm | Min Mpa | Mpa | Tsawg% | -20 | 30J |
3<> | 690 | 770-940 | 14 | -20 | 30J | |
50<> | 650 | 760-930 | 14 | -20 | 30J | |
100<> | 630 | 710-900 | 14 | -20 | 30J | |
Sib npaug steel qib S690Q | |||
Teb chaws Europe | Lub teb chaws Yelemees | Fabkis | Sweden |
| TSI 690V | - | 2624 |
ua
1. Cov txheej txheem tsim khoom tseem ceeb
Kev kho cua sov (Q + T): Cov txheej txheem txhais tau hais tias yuav tsum ua kom sov cov hlau rau nws qhov kub thiab txias (900-960 ° C), ua raws li cov dej nrawm nrawm los tsim cov qauv nyuaj martensitic. Tom qab ntawd nws yog tempered (feem ntau nyob ib ncig ntawm 600 ° C) kom rov qab ductility thiab toughness.
Microstructure: Kev ua haujlwm yog tsim los ua kom tau raws li tempered martensite lossis qis dua bainite microstructure, uas muab cov khoom muaj peev xwm zoo dua - cov kabmob muaj peev xwm piv rau cov hlau tsis zoo.
2. Fabrication thiab Machining
Thermal Cutting: S690Q tuaj yeem ua tiav ntawm nplaim taws, ntshav, lossis laser txiav. Rau cov phaj siab tshaj 50mm, preheating mus rau kwv yees li 75 ° C yog pom zoo kom tiv thaiv ntug cracking.
Txias txoj kev: Cov khoom siv yog tsim rau khoov yog tias lub vojvoog yog tsawg kawg 3-4 npaug ntawm lub phaj thickness. Nco ntsoov tias nws yuav tsum tau kwv yees li peb zaug lub zog siv rau cov qauv carbon steel.
Kub txoj kev: feem ntau yuav tsum tau zam saum toj no 560-580 ° C, raws li nws muaj peev xwm hloov tus thawj tempering thiab degrade mechanical zog.
3. Kev xav tau ntawm vuam
Preheating: Tsim nyog rau cov phaj tuab kom txo cov cua txias thiab tiv thaiv hydrogen-induced txias cracking.
Thaum tshav kub kub input: yuav tsum nruj me ntsis tswj (feem ntau ntawm 1.25–1.58 kJ / mm). Kev siv hluav taws xob ntau dhau tuaj yeem tsim kom muaj "mos thaj tsam" hauv tshav kub -Tebchaws cuam tshuam (HAZ), txo qhov sib koom ua ke lub zog tensile.
Consumables: Tsawg-hydrogen electrodes thiab MIG vuam yog ntau; cov ntaub ntawv muab tub lim yuav tsum sib phim lossis qis me ntsis hauv lub zog dua li cov hlau hauv paus txhawm rau txo qhov kev pheej hmoo tawg.
daim ntawv thov
• Cov cuab yeej nqa hnyav:
S690Q feem ntau yog siv rau hauv kev tsim cov cranes, mobile nqa platforms, thiab hydraulic nqa caj npab. Nws lub zog tawm los siab tso cai rau kev tsim qauv sib dua, muaj txiaj ntsig zoo dua yam tsis muaj kev cuam tshuam lub peev xwm thauj khoom, ua rau nws zoo tagnrho rau cov khoom siv uas yuav tsum tau ua kom hnyav hnyav thaum tswj kev ua haujlwm.
• High-rise thiab loj-span tsev:
Hauv kev tsim kho kev lag luam, S690Q yog siv rau cov txheej txheem tseem ceeb xws li kab, kab teeb, thiab trusses hauv cov tsev siab thiab cov qauv loj. Nws muaj peev xwm tiv taus cov khoom hnyav thiab tiv thaiv deformation pab txhim kho kev ruaj ntseg thiab kev nyab xeeb ntawm cov tsev niaj hnub, tshwj xeeb tshaj yog nyob rau thaj tsam seismic.
• Offshore thiab marine qauv:
Vim nws zoo toughness thiab tsis kam mus rau hnyav ib puag ncig tej yam kev mob, S690Q yog ua hauj lwm nyob rau hauv offshore platforms, kev them nyiaj yug qauv, thiab marine khoom. Nws muab kev txhim khu kev qha nyob rau hauv kev ntxhov siab thiab corrosive marine ib puag ncig, ua rau muaj kev ncaj ncees ntawm cov khoom siv sab nrauv.
• Mining thiab siv tshuab:
S690Q yog siv los tsim cov tshuab hnyav xws li excavator booms, bulldozer hniav, thiab cov khoom siv tsheb mining. Nws qhov kev sib xyaw ua ke ntawm lub zog thiab tawv tawv pab cov cav tov no tiv taus cov abrasive thiab muaj kev cuam tshuam loj heev ntawm cov mining thiab cov chaw tsim kho.
• Cov qauv choj:
Rau cov txuas hniav uas yuav tsum tau muaj peev xwm thauj khoom siab thiab ua haujlwm ntev, S690Q yog siv rau hauv qhov tseem ceeb xws li choj girders thiab cov tswv cuab txhawb nqa. Nws lub zog siab tso cai rau txo cov khoom tuab, ua rau muaj kev lag luam ntau dua thiab siv tau zoo.
qhov zoo
• Siab zog:
Nrog rau qhov tsawg kawg nkaus tawm lub zog ntawm ib ncig ntawm 690 MPa, S690Q muab tshwj xeeb load-bearing muaj peev xwm, tso cai rau cov tsim kom txo tau cov ntaub ntawv thickness thiab tag nrho cov hnyav thaum tuav tswj kev ncaj ncees. Qhov no ua rau kom muaj txiaj ntsig zoo thiab raug nqi tsim nyog.
• Zoo heev toughness:
Cov hlau tuav zoo toughness txawm nyob rau hauv qis kub, ua tsaug rau nws quenched thiab tempered microstructure. Qhov no ua rau nws tsim nyog rau cov ntawv thov raug rau qhov hnyav ib puag ncig lossis dynamic loading tej yam kev mob.
• Zoo weldability:
Txawm hais tias nws lub zog siab, S690Q tuaj yeem welded siv cov txheej txheem txheej txheem nrog preheating thiab interpass kub tswj. Qhov no simplifies fabrication thiab txo lub sij hawm ntau lawm thiab cov nqi.
• Txhim kho durability:
Cov hlau ua kom zoo dua microstructure thiab cov khoom sib xws thoob plaws thickness txhim kho nws cov kev tiv thaiv rau qaug zog, hnav, thiab deformation, kom ntseeg tau tias kev ua haujlwm ntev hauv kev thov.
• Tsim kom yooj yim:
Nws lub zog loj-rau-hnyav piv ua rau cov kws ua haujlwm tau yooj yim dua hauv kev tsim cov qauv thiab cov cuab yeej siv, ua kom muaj kev tsim kho tshiab hauv thaj chaw xws li cov tshuab hnyav, cov tsev siab siab, thiab cov chaw sab nrauv.
Yog tias koj muaj qhov yuav tsum tau ua rau S690Q, peb txais tos koj nug. GNEE tuav cov khoom lag luam loj uas feem ntau siv cov qib siab zog steel rau koj xaiv.Rau cov ncauj lus kom ntxaws cov khoom siv, tshuaj muaj pes tsawg leeg, thiab cov ntaub ntawv kev, nrog rau cov qauv dawb, thov hu rau peb lub Hoobkas tam sim ntawd. Peb muab cov nqi sib tw, ruaj khov zoo, thiab kev pabcuam tshaj lij. Email: beam@gneesteelgroup.com.
Dab tsi yog qhov cuam tshuam lub zog xav tau rau S690Q?
S690Q yuav tsum muaj qhov cuam tshuam tsawg kawg nkaus ntawm 30 J ntawm -20 ° C (Charpy V-notch test), kom ntseeg tau tias muaj zog nyob rau hauv dynamic loads.
S690Q puas tuaj yeem siv rau hauv cov qauv sab nrauv?
Yog lawm, S690Q yog tsim rau cov qauv offshore xws li platforms thiab tsho, raws li nws tiv taus siab loads thiab hnyav marine ib puag ncig nrog kev tiv thaiv kom raug.
Qhov txawv ntawm S690Q thiab S460Q yog dab tsi?
S690Q muaj lub zog tawm los ntau dua (690 MPa vs . 460 MPa rau S460Q) thiab siv rau kev thov ntau dua, hnyav- daim ntawv thov thauj khoom.
Yuav khaws S690Q daim hlau li cas los tiv thaiv corrosion?
Khaws S690Q daim hlau nyob rau hauv qhov chaw qhuav, zoo- qhov cua qhov chaw, kom deb ntawm cov dej noo thiab tshuaj lom neeg. Npog nrog cov ntawv tsis muaj dej kom tsis txhob xeb.
S690Q puas tuaj yeem nitrided?
Yog lawm, S690Q tuaj yeem ua nitrided los txhim kho qhov tawv tawv thiab hnav tsis kam. Cov txheej txheem no txhim kho nws cov kev ua tau zoo hauv kev hnav- cov ntawv siv yooj yim.
Dab tsi yog qhov elongation ntawm kev tawg ntawm S690Q?
Qhov tsawg kawg nkaus elongation ntawm tawg ntawm S690Q yog 14% (rau 16 hli thickness). Nws ua kom muaj ductility txaus rau kev nyab xeeb ntawm cov qauv.
Puas yog S690Q haum rau crane booms?
Yog lawm, S690Q yog qhov zoo tagnrho rau crane booms. Nws lub zog siab txo qhov hnyav thaum tswj kev thauj khoom -cov kabmob muaj peev xwm, txhim kho crane efficiency.
Dab tsi yog txoj hauv kev tshuaj xyuas rau S690Q?
Cov kev tshuaj ntsuam xyuas feem ntau suav nrog kev ntsuas tensile, kev sim cuam tshuam, kuaj hardness, kuaj ultrasonic, thiab kev tshuaj xyuas qhov muag kom zoo.