S690QL yog ib qho siab -yield zog structural steel (HSLA) paub txog nws lub zog tshwj xeeb (tsawg kawg 690 MPa tawm los) thiab toughness, ua rau EN 10025-6 tus qauv siv lub quench thiab temper cua sov kho, tso cai rau sib dua, ntau npaum li cas tsim nyob rau hauv hnyav-duty daim ntaub ntawv, thiab cov khoom siv zoo li cranes, thiab lwm yam. formability txawm xav tau ceev faj tuav vim nws lub zog. Nws lub npe txhais tau hais tias "Structural" (S), "690 MPa" yam tsawg kawg nkaus, "Quenching" (Q), thiab "Low" kub toughness (L).
Cov yam ntxwv tseem ceeb
Siab zog:Yam tsawg kawg nkaus lub zog ntawm 690 MPa (rau cov seem thinner), ua kom cov qauv sib dua thiab muaj peev xwm ua kom muaj zog ntxiv.
Quenched & Tempered (Q + T):Thaum tshav kub kub kev kho mob muab superior zog, toughness, thiab durability.
Zoo heev Toughness:Lub zog muaj zog zoo txawm tias qhov kub thiab txias (qhia los ntawm 'L').
Zoo Weldability & Formability:Tso cai rau cov ntaub ntawv nyuaj thaum ua raws li cov txheej txheem.
Composition (Tsawg Max Values)
Cov pa roj carbon (C): ~0.20%
Manganese (Mn): ~1.70%
Silicon (Si): ~0.80%
Chromium (Cr): ~1.50%
Molybdenum (Molybdenum): ~0.70%
Nickel (Ni): ~2.0%
Grain Refiners:Muaj V, Nb, Ti, Zr (min 0.015%) rau cov qauv zoo.
Daim ntawv thov
Mobile cranes thiab lifting khoom
Cov choj thiab hnyav - kev tsim kho
Earthmoving thiab mining machinery (cov tsheb thauj khoom pov tseg, drilling rigs)
Cua turbine yees
S690QL puas tuaj yeem ua tau yooj yim?
Tsis yog, S690QL tsis tuaj yeem ua tau yooj yim. Vim nws lub zog siab heev (690 MPa yield) thiab hardness (feem ntau 240-300 HBW), nws raug cais raws li ib qho nyuaj - rau-tshuab cov khoom piv rau cov me me los yog txheem alloy steels. Cov txheej txheem tshwj xeeb thiab cov cuab yeej yuav tsum tau ua kom tiav cov txiaj ntsig zoo yam tsis muaj cov cuab yeej siv ntau dhau los yog kev puas tsuaj rau lub workpiece.
Ntawm no yog cov teeb meem tseem ceeb thiab cov txheej txheem rau machining S690 QL:
Cov Kev Sib Tw Tseem Ceeb:
High Cutting Forces: Cov khoom siv lub zog xav tau cov tshuab muaj zog thiab kev teeb tsa nruj kom tsis txhob muaj kev vibration thiab sib tham.
Kev hnav cov cuab yeej ceev ceev: Lub hardness thiab abrasiveness ntawm S690QL (tshwj xeeb tshaj yog nto scale) ua kom ceev hnav ntawm cov npoo.
Thaum tshav kub kub Generation: Siab txiav quab yuam thiab kev sib txhuam ua kom muaj cua sov tseem ceeb, uas tuaj yeem ua rau lub neej ua haujlwm ntxiv thiab muaj peev xwm hloov cov khoom siv yog tias tsis tswj tau.
Kev Ua Haujlwm Hardening: Kev ua haujlwm tsis raug (xws li, siv cov cuab yeej hnav lossis tsis raug) tuaj yeem ua kom tawv tawv, ua rau kev hla dhau qhov nyuaj dua.
Qhov tseem ceeb Machining Guidelines:
Tooling: Siv cov qib siab -kev ua tau zoo carbide qib (C2/C3), ceramic-coated carbides, los yog cermet inserts. Cov cuab yeej yuav tsum tau ntse thiab muaj qhov zoo rake geometry kom txo tau txiav quab yuam.
Txiav Parameters:
Txiav ceev (Vc): Nruab nrab mus rau qis - feem ntau 80-150 m / min rau tig nrog cov cuab yeej carbide.
Feed Rate: Siv cov khoom noj kom txaus los tiv thaiv kev txhuam thiab ua haujlwm tawv.
Qhov tob ntawm Txiav: Tsim nyog txiav hauv qab txhua txheej tawv tawv.
Coolant: Siab-siab, siab- coolant zoo yog qhov tseem ceeb rau dissipate tshav kub, txhim kho lub neej ntawm lub cuab tam, thiab pab nti khiav tawm.
Rigidity: Ua kom muaj kev ruaj ntseg siab tshaj plaws hauv lub tshuab, workpiece clamping, thiab cov cuab yeej tuav kom txo qis deflection.
Npaj Cov Kauj Ruam: Tshem tawm qhov nyuaj, decarburized nto nplai (feem ntau tam sim no raws li - xa cov phaj) los ntawm kev siv lub tshuab ntxhib lossis cov txheej txheem abrasive ua ntej ua tiav machining, vim nws yog abrasive heev.
Cov ntsiab lus:
Thaum S690QL yog machinable, nws xav tau:
Cov cuab yeej siv tshuab muaj zog, nruj
Hwm - cov cuab yeej txiav qib
Precise, optimized txiav tsis
Ua kom txias txias
Cov neeg ua haujlwm muaj kev paub
Rau cov khoom tseem ceeb, kev sab laj nrog cov neeg muab khoom siv thiab kev sim ua haujlwm tau pom zoo kom txhim kho qhov ruaj khov, tus nqi - cov txheej txheem machining zoo.
TS EN 10025-6 S690Q quenched thiab tempered steel phaj Chemical muaj pes tsawg leeg
| Qib | C % | Si% | Mn% | P % | S % | N % | B % | Cr% |
| S690Q | 0.200 | 0.800 | 1.700 | 0.025 | 0.015 | 0.015 | 0.005 | 1.500 |
| Cu% | Mo% | Nb% | Ni% | Ti % | V % | Zr% | ||
| 0.500 | 0.700 | 0.060 | 2.000 | 0.050 | 0.120 | 0.150 |
EN10025-6 S690Q quenched thiab tempered steel phaj mechanical zog
| Qib | Thickness | Min Yield | Tensile | Elongation | Min Impact Zog | |
| S690Q | 8mm-50mm | Min 690 Mpa | 770-940 Mpa | 14% | -20 | Min 30 J |
| 51mm-100 hli | Min 650 Mpa | 760-930 Mpa | 14% | -20 | Min 30 J | |
| 101mm-150mm | Min 630 Mpa | 710-900 Mpa | 14% | -20 | Min 30 J |
1. S690QL steel yog dab tsi?
S690QL yog qhov siab -lub zog, quenched thiab tempered structural steel qib nrog qhov tsawg kawg nkaus lub zog ntawm 690 MPa, tshwj xeeb tshaj yog optimized rau qis - kub toughness mus rau -40 ° C.
2. Dab tsi yog "L" sawv cev rau hauv S690QL?
Qhov "L" sawv cev rau "Tsawg kub," qhia tias cov hlau tau ntawv pov thawj rau kev txhim kho qhov hnyav ntawm qhov kub li qis li -40 ° C.
3. Dab tsi yog cov ntawv thov ntawm S690QL?
Nws yog feem ntau siv nyob rau hauv huab cua ib puag ncig xws li Arctic kev tsim kho, offshore platforms, siab -latitude mining khoom, thiab mobile cranes ua hauj lwm nyob rau hauv freezing tej yam kev mob.
4. S690QL txawv ntawm S690Q li cas?
Qhov sib txawv tseem ceeb yog S690QL lav qhov cuam tshuam ntau dua ntawm -40 ° C, thaum tus qauv S690Q feem ntau kuaj ntawm 0 ° C, ua rau S690QL zoo dua rau cov huab cua khov.
5. Cov tshuaj muaj pes tsawg leeg ntawm S690QL yog dab tsi?
Nws yog ib qho qis- alloy steel uas muaj carbon, manganese, silicon, thiab micro- alloys xws li niobium, vanadium, thiab titanium, nrog kev tswj nruj ntawm phosphorus thiab sulfur kom ntseeg tau tias weldability thiab toughness.
6. Cov txheej txheem vuam dab tsi yuav tsum tau ua rau S690QL?
Vuam yuav tsum tau qis -hydrogen electrodes, nruj preheating (feem ntau 100-}}} 150 ° C), tswj cov cua sov input, thiab feem ntau tom qab vuam kev nyuaj siab nyem kom muaj zog thiab tiv thaiv kev tawg.
7. Puas yog S690QL corrosion resistant?
Tsis yog, S690QL tsis yog qhov muaj zog corrosion-resistant. Zoo li lwm yam siab - lub zog steels, nws yuav tsum muaj cov txheej txheem tiv thaiv (xws li, pleev xim lossis galvanizing) siv rau hauv ib puag ncig corrosive.
8. Cov qauv dab tsi npog S690QL cov khoom?
Nws yog feem ntau txhais los ntawm European tus qauv EN 10025-6, nrog rau qhov sib npaug ntawm lwm cov tshuab (xws li ASTM, ISO).
9. S690QL puas tuaj yeem ua tau yooj yim?
Machining S690QL yog qhov nyuaj vim nws lub zog siab thiab hardness; nws yuav tsum tau siv cov cuab yeej muaj zog, ua kom txias txaus, thiab ua kom zoo rau kev txiav kom tsis txhob hnav cov cuab yeej ntau dhau.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
