Dab tsi cuam tshuam rau P355QL1 txhua yam khoom?
P355QL 1's mechanical zog, zoo li lub zog thiab toughness, feem ntau cuam tshuam los ntawm nwstshuaj muaj pes tsawg leeg (carbon, manganese, thiab lwm yam), tshwj xeebKev kho cua sov (quenching & tempering)rau nws qib 'QL', thiab cov txheej txheem tsim khoom, txiav txim siab nws cov microstructure rau cov ntawv thov uas xav tau lub zog siab thiab weldability, feem ntau hauv cov hlab ntsha siab lossis cov kav dej.
P355QL1 yog aSiab -Ductility Pressure Vessel Qibsiv los txhim kho lub thickness - rau - qhov hnyav piv ntawm cov khoom siv siab -. Nws yog cov khoom ntawm kev xaiv thaum tsim ib puag ncig muaj kev ntxhov siab sab hauv thiab muaj peev xwm ua rau txias - huab cua raug. Nws muab cov ntaub ntawv txhim khu kev qha rau Finite Element Analysis (FEA) vim nws zoo ib yam los ntawm - cov khoom tuab.
Cov yam ntxwv tseem ceeb
Thickness Muaj peev xwm:Feem ntau muaj nyob rau hauv daim hlau tuab heev (txog 150mm lossis 250mm), thaum khaws nws cov khoom muaj zog zoo dua li cov uas tsis yog- cua sov- kho steels.
Fatigue Resistance:Cov txheej txheem microstructure tsis zoo muab kev tiv thaiv zoo rau kev ntxhov siab- tawg los ntawm kev rov ua kom lub zog thiab kev ntxhov siab.
High Yield-rau-Tensile Ratio:Tso cai rau cov phab ntsa nyias nyias piv rau cov pa roj carbon monoxide, txo qhov hnyav tag nrho ntawm cov khoom siv.
Linear Expansion:Raws li thermal expansion coefficients tso cai rau kev ua haujlwm zoo ntawm cov pob qij txha nrog lwm cov khoom siv hlau.
Decoding lub npe
P:Paub meej tias cov khoom ua tau raws li "Boiler thiab Pressure Vessel" cov cai yuav tsum tau ua.
355:Tus tsim kev txwv tsis pub siv los suav cov phab ntsa thickness ntawm lub nkoj.
Q:Qhia rau tus kws tsim qauv tias cov khoom siv tsis tuaj yeem kub -tsim yam tsis tau rov- kho cua sov.
L1:Qhov qis - qhov kub thiab txias, ua kom lub nkoj yuav tsis "sshatter" yog tias cuam tshuam rau lub caij ntuj no.
Kev sib piv
Vs. P265GH:P265GH yog tus qauv boiler steel. P355QL1 yog kwv yees li 35% muaj zog thiab hnyav dua ntawm qhov kub thiab txias, tso cai rau kev tsim cov nkoj loj dua thiab muaj kev nyab xeeb dua.
Vs. P460 QL1:P460 muaj zog dua tab sis tuaj yeem nyuaj rau vuam thiab kim dua. P355QL1 yog "qhov chaw qab zib" rau ntau tus engineers ntsuas tus nqi thiab kev ua haujlwm.
Daim Ntawv Thov Kev Sib Tham
Spherical Storage Tanks:Loj "Horton Spheres" siv rau cov roj cia hauv cov chaw ua si.
Hydroelectric Penstocks:Siab - cov kav dej siab uas nqa dej mus rau turbines nyob rau thaj tsam roob txias.
Steam Accumulators:Cov nkoj uas khaws cov pa hluav taws xob, xav tau kev tiv thaiv siab rau kev hloov pauv siab.
P355QL1 puas tuaj yeem welded yooj yim?
Yog lawm, nws suav hais tias yog weldable zoo - steel hlau. Txawm li cas los xij, vim nws yog qib quenched thiab tempered, welders yuav tsum nruj me ntsis tswj cov cua kub nkag. Cov cua kub ntau dhau tuaj yeem "mos" cov hlau hauv tshav kub- thaj chaw cuam tshuam (HAZ), txo nws lub zog. Tsawg-hydrogen electrodes thiab preheating feem ntau pom zoo.
Cov ntawv thov ntawm qib no yog dab tsi?
Nws feem ntau yog siv rau hauv: Gas Cia: LPG tanks thiab liquefied gas thauj. Kev lag luam Petrochemical: Reactors thiab cov khoom siv hluav taws xob ua haujlwm nyob rau hauv qhov chaw txias. Zog Sector: Siab -siab boilers thiab hydropower penstocks. Offshore: Siab modules ntawm cov roj rigs nyob rau sab qaum teb latitudes.
P355QL1 cov khoom sib npaug yog dab tsi?
P355QL1 yog European alloy steel (EN 1.8868) rau cov hlab ntsha siab, yuav tsum muaj kev cuam tshuam tshwj xeeb ntawm qhov kub thiab txias, nrog rau qhov sib npaug feem ntau poob rau hauv qhov zoo sib xws quenched & tempered, qis- alloy qib zoo li ASTM A572 Qib 50 lossis lwm yam P35555N1H1H sib txawv (piv txwv li, P3) daim ntawv thov tshwj xeeb cov khoom uas yuav tsum tau ua, tsom rau nws lub zog (P355=355 MPa tawm los) thiab "QL1" (tseem ceeb cuam tshuam)
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P355QL1 Tshuaj muaj pes tsawg leeg |
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Qib |
Cov ntsiab lus Max (%) |
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C |
Si |
Mn |
P |
S |
N |
B |
|
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P355QL 1 |
0.16 |
0.4 |
1.5 |
0.020 |
0.010 |
0.015 |
0.005 |
|
Mo |
Cu |
Nb |
Ni |
Ti |
V |
Zr |
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|
0.25 |
0.3 |
0.05 |
0.5 |
0.03 |
0.06 |
0.05 |
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Carbon sib npaug: Ceq=【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
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Qib |
P355QL1 Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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P355QL 1 |
mm |
Min Mpa |
Mpa |
Tsawg% |
|
6-50 |
355 |
490-630 |
22% |
|
|
50-100 |
335 |
490-630 |
22% |
|
|
100-150 |
315 |
450-590 |
22% |
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1 P355QL1 siv rau dab tsi?
P355QL1 steel, teev nyob rau hauv EN 10028-6 rau weldable, nplua- nplej, quenched, thiab tempered steels, feem ntau yog siv rau kev tsim cov hlab ntsha siab, boilers, cia tank, thiab tshav kub exchangers, tshwj xeeb tshaj yog nyob rau hauv cov roj, roj, thiab siab -kub muaj - 4℃kev siv tau zoo heev. weldability.
2 Puas yog P355QL1 weldable?
Yog lawm, P355QL1 yog ib qho zoo weldable -cov qauv hlau tshwj xeeb tsim los rau cov hlab ntsha siab thiab siab - cov khoom siv kub, paub txog nws cov weldability zoo thiab tsim nyog rau vuam txheej txheem hauv kev siv tam sim no, feem ntau siv hauv quenched thiab tempered mob. Nws raug cais raws li qhov qis- kub tawv steel, txhais tau tias nws khaws cov khoom zoo ntawm qhov kub thiab txias mus rau -40℃thiab raug xa mus rau Welding Group 1.2 hauv DIN CEN ISO/TR 15608.
3 Qhov txawv ntawm P355QL1 thiab P355QL2 yog dab tsi?
Qhov sib txawv tseem ceeb yog qhov ntsuas qhov kub thiab txias: P355QL1 yog kuaj ntawm -40℃. P355QL2 yog kuaj ntawm -60 degree. Qib L2 yog siv rau ntau qhov chaw huab cua tsis zoo, xws li cov xwm txheej hauv arctic lossis kev ua tshuaj lom neeg tshwj xeeb.
4 Dab tsi yog cov khoom tseem ceeb ntawm cov khoom siv P355QL1?
P355QL1 (EN 1.8868) yog weldable nplua -cov khoom siv hlau nrog cov khoom tseem ceeb: Hlau (Fe) (sib npaug, ~ 96-99%), nrog qhov siab tshaj plaws rau Carbon (C) (ib puag ncig 0.16%), Manganese (Mn) (ib ncig 1.6%), Silicona (Siliconu). 0.3%), Chromium (Cr) (nyob ib ncig ntawm 0.3%), Nickel (Ni) (nyob ib ncig ntawm 0.5%), Molybdenum (Mo) (nyob ib ncig ntawm 0.25%), thiab tsawg dua ntawm Vanadium (V), Niobium (Nb), thiab Titanium (Ti) rau cov nplej refinement.
5 P355QL1 tswj qhov kub thiab txias li cas?
P355QL1 tshwj xeeb yog tsim los rau qis-kev pabcuam kub. Nws yuav tsum xeem dhau Charpy V- qhov ntsuas qhov cuam tshuam ntawm -40 degree, qhov twg nws yuav tsum nqus tsawg kawg ntawm 27 Joules ntawm lub zog. Qhov no ua kom cov khoom yuav tsis raug kev txom nyem los ntawm nkig tawg nyob rau hauv cov huab cua txias los yog siv cryogenic.
6 Puas yog P355QL1 xav tau Post-Weld Heat Treatment (PWHT)?
Feem ntau, yog. Rau tuab- cov hlab ntsha uas muaj lub siab, qhov kev ntxhov siab yog qhov yuav tsum tau ua kom txo qis kev ntxhov siab los ntawm vuam. Txawm li cas los xij, PWHT qhov kub thiab txias yuav tsum tau khaws cia hauv qab qhov kub ntawm qhov kub ntawm lub phaj kom tiv thaiv kom tsis txhob muaj zog tawm los.
7P355QL1 puas siv tau rau daim ntawv thov boiler?
Yog lawm, P355QL1 steel yog tshwj xeeb tsim thiab dav siv rau boiler thiab siab hlab ntsha daim ntaub ntawv, raws li cov qauv zoo li EN 10028-6, muab zoo weldability, siab zog, thiab zoo low-temperature cuam tshuam toughness tom qab quenching thiab tempering, ua rau nws zoo tagnrho rau kev xav tau kev lag luam.
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Yog tias koj muaj qhov project xav tau rauP355QL 1, 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 txhua yam khoom, tshuaj lom neeg 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: info@gneesteels.com
