SWV 490yog lub siab - zoo siab lub nkoj steel phaj tshwj xeeb tsim los tsim ntau yam siab- cov khoom siv bearing. Nws yog dav siv nyob rau hauv zus tau tej cov cov hlab ntsha siab uas nqa gases, kua los yog lwm yam xov xwm nyob rau hauv tej lub siab, ua tsaug rau nws zoo heev txhua yam khoom, superior weldability thiab siab tensile thiab yield zog. Cov phaj hlau no tuaj yeem tiv taus cov kev khiav hauj lwm tshwj xeeb hauv qhov chaw ua haujlwm hnyav, tiv thaiv kom tsis txhob tawg, deformation lossis tawg ntawm cov cuab yeej, thiab yog li ua kom muaj kev nyab xeeb, txuas ntxiv thiab txhim khu kev lag luam ntawm cov cuab yeej tsim khoom.
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SWV 490Tshuaj muaj pes tsawg leeg |
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Qib |
Cov ntsiab lus Max (%) |
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C |
Si |
Mn |
P |
S |
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SWV 490 |
0.18 |
0.75 |
1.60 |
0.030 |
0.030 |
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Qib |
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SPV490 Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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SWV 490 |
mm |
Min Mpa |
Mpa |
Tsawg% |
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6-50 |
490 |
610-740 |
18% |
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50-100 |
470 |
610-740 |
25% |
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100-200 |
450 |
610-740 |
19% |
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ua
1. Kev xaiv kho cua sov
Qhov tseem ceeb tshaj plaws ntawm kev ua SPV490 yog lub voj voog thermal, uas txiav txim siab nws lub zog kawg thiab cov qauv nplej:
Normalizing (N): Refines grain qauv kom txhim kho uniformity thiab toughness.
Quenching & Tempering (QT): Feem ntau rau SPV490 kom ua tiav nws lub zog tawm los siab (490+ MPa) thaum tuav cov ductility.
Stress Relieving (SR): Feem ntau ua tom qab hnyav vuam kom tshem tawm cov kev ntxhov siab sab hauv.
2. Txiav thiab sib sau
Txiav: Feem ntau ua tiav ntawm CNC nplaim taws txiav lossis Plasma txiav. Vim nws thickness (feem ntau mus txog 200mm), laser txiav yog tsawg dua.
Txias / Kub sib sau: tuaj yeem dov rau hauv cylindrical shells los yog nias rau hauv hemispherical hau. Yog tias qhov kub sib sau ua tiav saum qhov ntsuas kub tseem ceeb, lub phaj yuav xav tau rov- kho cua sov kom rov qab tau nws cov khoom siv kho tshuab.
3. Kev xav tau ntawm vuam
Raws li lub siab lub nkoj steel, vuam yog raug rau cov cai nruj (xws li JIS B 8265):
Preheating: Yuav tsum tau tiv thaiv hydrogen -induced cracking, feem ntau ntawm 100℃thiab 150℃nyob ntawm thickness.
Filler Metals: Yuav tsum phim lub zog tensile siab (610-740 MPa) ntawm lub hauv paus hlau.
Tom qab- Weld Heat Treatment (PWHT): Qhov tseem ceeb rau tuab- cov hlab ntsha phab ntsa kom ntseeg tau tias kev sib koom ua ke.
4. Machining thiab Surface Prep
Ntug Kev Npaj: Beveling (V, U, lossis X-zoo li tus) yog yuav tsum tau rau tag nrho -kev nkag welds.
Kev Kho Hniav: Feem ntau suav nrog Kev Txhaum Txhaum Cai (rau Sa 2.5 tus qauv) thiab daim ntawv thov ntawm epoxy primer los tiv thaiv corrosion thaum khaws cia lossis tsim khoom.
5. Tsis yog -Kev Ntsuam Xyuas Kev Puas Tsuaj (NDT)
Muab nws siv nyob rau hauv siab - ib puag ncig muaj kev pheej hmoo, SPV490 raug kuaj nruj:
Kev Ntsuas Ultrasonic (UT): txhawm rau txheeb xyuas cov laminations sab hauv lossis suav nrog (xws li JIS G 0801 tus qauv).
Sib Nqus Particle (MT) los yog Radiographic Testing (RT): Tshwj xeeb rau kev tshuaj xyuas kev ncaj ncees ntawm welded seams.
daim ntawv thov
Cov nkoj siab:Kev siv thawj zaug rau kev tsim cov khoom siv hluav taws xob kheej kheej, lub tank cia, thiab cov reactors hauv cov roj, roj, thiab petrochemical industries.
Boiler Cheebtsam:Qhov zoo tshaj plaws rau siab -sab nruas nruas, headers, thiab plhaub nyob rau hauv thermal fais fab nroj tsuag vim nws lub zog ntawm nruab nrab kub.
Zog Cia:Feem ntau siv rau LPG thiab LNG cia tso tsheb hlau luam vim tias nws muaj zog toughness tiv thaiv nkig tsis ua hauj lwm hauv qhov chaw txias.
Thaum tshav kub kub Exchangers:Siv nyob rau hauv refinery ua chav tsev uas yuav tsum tau cov ntaub ntawv los tiv thaiv ib txhij thermal kev nyuaj siab thiab sab hauv siab.
Hydropower Infrastructure:Siv rau siab - cov twj tso kua mis thiab cov turbine casings hauv cov chaw nres tsheb dej.
Cov Khoom Siv Tshuaj:Fabrication ntawm separators, kab, thiab siab - siab piping rau tshuaj synthesis nroj tsuag.
Cov txiaj ntsig ntawm SPV490
Txhim kho cov cuab yeej kev nyab xeeb: Nws lub zog zoo heev -tuaj yeem sib npaug thiab qis- qhov kub thiab txias ua rau txo qhov kev pheej hmoo ntawm cov khoom siv deformation, tawg thiab to hauv cov kev ua haujlwm hnyav (siab siab, tsis tshua muaj kub, thermal voj voog), kom tsis txhob muaj kev nyab xeeb thiab txo qhov poob.
Txo cov nqi tsim khoom: Superior weldability thiab machinability ua kom yooj yim cov txheej txheem, ua kom lub voj voog ntau lawm thiab qis zog thiab siv cov khoom siv. Kev siv cov khoom siv siab kuj tseem txo cov khoom pov tseg, ua kom zoo dua tus nqi tag nrho rau cov lag luam.
Lub neej ua haujlwm ntev: Txhim khu kev tiv thaiv corrosion thiab qaug zog ua haujlwm pab cov cuab yeej ua los ntawm SPV490 kom tiv taus ntev - lub sijhawm ua haujlwm yaig, ncua kev pab cuam lub neej thiab txo qhov zaus ntawm kev hloov khoom siv thiab tu.
Wide Application Adaptability: Ua raws li cov qauv thoob ntiaj teb thiab cov qauv hauv tsev thiab kev ua haujlwm ruaj khov ua rau nws siv tau rau ntau yam kev lag luam xws li petrochemical, lub zog tsim hluav taws xob thiab kev tsim cov hlab ntsha siab, ua kom tau raws li qhov xav tau ntawm ntau qhov project thiab txhim kho daim ntawv thov kom yooj yim.
Tiv tauj peb ntawm beam@gneesteelgroup.com rau tus nqi, kev txhawb nqa, lossis kev daws teeb meem. Peb yeej ib txwm npaj los txhawb koj qhov project.
SPV490 puas tuaj yeem siv rau hauv siab - lub tog raj kheej roj siab?
Yog lawm, SPV490 tuaj yeem siv los tsim cov siab - siab lub tog raj kheej roj. Nws lub zog muaj zog thiab muaj zog zoo tuaj yeem ua kom ntseeg tau tias lub tog raj kheej roj tuaj yeem nqa tau siab - cov pa roj thiab tsis yooj yim rau tawg, ua tau raws li cov qauv kev nyab xeeb ntawm cov tog raj kheej roj.
Qhov txawv ntawm SPV490 thiab Q345R yog dab tsi?
SPV490 ua raws li cov qauv Japanese, thaum Q345R ua raws li Suav cov qauv. SPV490 muaj zog tawm los ntau dua. Q345R tau siv dav hauv Suav teb, thaum SPV490 yog siv ntau dua hauv cov khoom siv los ntawm Nyiv lossis koom ua lag luam.
SPV490 puas tuaj yeem siv los tsim boiler nruas?
Yog lawm, SPV490 yog tsim rau kev tsim boiler nruas. Boiler drums dais siab thiab kub, thiab SPV490 lub zog zoo heev, toughness thiab weldability tuaj yeem ua tau raws li kev nyab xeeb thiab kev ua haujlwm ntawm boiler nruas.
Puas yog SPV490 yuav tsum tau normalized ua ntej vuam?
Feem ntau, SPV490 tsis tas yuav tsum tau ua kom zoo li qub ua ntej vuam yog tias nws tau ua haujlwm zoo li qub. Tab sis rau cov phaj tuab los yog cov txheej txheem nyuaj, preheating ua ntej welding tuaj yeem ua tau los txo qhov kev ntxhov siab ntawm vuam thiab tsis txhob tawg.
Dab tsi yog qhov yuav tsum tau ua rau cov khoom siv vuam ntawm SPV490?
Cov khoom siv vuam ntawm SPV490 yuav tsum phim nws cov khoom siv kho tshuab. Feem ntau, qis-hydrogen hom vuam rods lossis vuam hlau raug xaiv los xyuas kom meej tias cov vuam sib txuas muaj lub zog thiab tawv zoo li lub hauv paus hlau.
Puas yog SPV490 yog qhov qis- hlau alloy?
Yog lawm, SPV490 yog qhov qis - alloy siab - lub zog siab lub nkoj steel. Nws ntxiv me me ntawm alloying ntsiab xws li Mn thiab Si raws li cov pa roj carbon steel los txhim kho nws lub zog thiab toughness yam tsis tau nce nqi ntau lawm.
Qhov siab tshaj plaws ua haujlwm kub ntawm SPV490 yog dab tsi?
Qhov siab tshaj plaws ua haujlwm kub ntawm SPV490 feem ntau tsis tshaj 450 degree. Thaum ua haujlwm ntawm qhov kub siab dua, cov khoom siv hluav taws xob ntawm cov hlau phaj yuav txo qis, uas yuav cuam tshuam rau kev nyab xeeb ntawm lub nkoj siab.
Dab tsi yog daim ntawv thov ntawm SPV490 hauv kev lag luam tshuaj?
Hauv kev lag luam tshuaj, SPV490 yog siv los tsim cov tshuaj reactors, cia tso tsheb hlau luam rau cov khoom siv tshuaj, cov kav dej thiab lwm yam khoom siv. Nws tuaj yeem tiv taus lub siab ntawm cov tshuaj lom neeg thiab ua kom muaj kev nyab xeeb ntawm kev tsim tshuaj.
Dab tsi yog qhov zoo ntawm SPV490 piv nrog cov pa roj carbon zoo tib yam?
Piv nrog cov pa roj carbon zoo tib yam, SPV490 muaj zog dua, zoo dua toughness thiab weldability. Nws tuaj yeem txo cov thickness ntawm cov hlau phaj hauv cov cuab yeej tsim khoom, txuag cov ntaub ntawv, thiab txhim kho kev nyab xeeb thiab kev pab lub neej ntawm cov khoom siv.