SWV 490yog lub siab -lub zog quenched thiab tempered siab hlab ntsha steel, tsim rau siab - kub thiab siab - cov khoom siv siab. Nws nta zoo heev toughness, zoo weldability, thiab ruaj khov mechanical zog nyob rau hauv hnyav tej yam kev mob xws li thermal cycling thiab corrosion, haum rau petrochemical, zog tsim thiab hnyav machinery teb.
Cov cuab yeej cuab tam rau SPV490 steel phaj
| Thickness (hli) | |||
| SPV490 steel phaj | Ntau dua lossis sib npaug li 6 Tsawg dua lossis sib npaug rau 50 | >50 Tsawg dua los yog sib npaug rau 100 | > 100 |
| Yield zog (Ntau dua lossis sib npaug rau Mpa) | 490 | 470 | 450 |
| Tensile zog (Mpa) | 610-740 | ||
Tshuaj muaj pes tsawg leeg rau SPV490 steel phaj
| Cov ntsiab lus tseem ceeb ntawm SPV490 steel phaj | ||||
| C | Si | Mn | P | S |
| 0.18 | 0.75 | 1.60 | 0.030 | 0.030 |
Kev khiav dej num ntawm SPV490 Steel Phaj
Raw Material Preparation thiab Charging
Cov txheej txheem pib nrog xaiv cov qib siab - zoo hlau ore, seem hlau, thiab cov hlau alloying xws li manganese, silicon, thiab me me ntxiv ntawm niobium lossis vanadium. Cov ntaub ntawv no tau ua tib zoo muab faib ua raws li cov txheej txheem tshuaj muaj pes tsawg leeg ntawm SPV490 thiab tom qab ntawd them rau hauv lub converter lossis hluav taws xob arc rauv.
Smelting thiab Primary Refining
Hauv qhov cub, cov khoom siv raw yog melted ntawm qhov kub thiab txias. Oxygen yog tshuab rau hauv cov hlau molten kom txo cov ntsiab lus carbon thiab tshem tawm impurities los ntawm oxidation. Thaum lub sij hawm no, cov tshuaj muaj pes tsawg leeg tau soj ntsuam tas li thiab hloov kho kom tau raws li cov qauv teev tseg rau SPV490.
Secondary Refining thiab Vacuum Treatment
Tom qab thawj refining, cov hlau molten yog pauv mus rau lub ladle rauv rau theem nrab refining. Ntawm no, ntxiv deoxidation thiab desulfurization yog nqa tawm, thiab tus nqi ntawm cov ntsiab lus alloying tau ntxiv kom ua tiav qhov xav tau lub zog thiab toughness. Lub tshuab nqus tsev degassing (VD lossis VOD) yog tom qab ntawd siv los txo cov hydrogen, nitrogen, thiab lwm yam pa phem, txhim kho cov hlau purity thiab zoo sab hauv.
Nruam Casting
Lub refined molten steel yog cam khwb cia rau hauv slabs siv lub nruam casting tshuab. Cov slabs yog txias thiab solidified nyob rau hauv kev tswj tej yam kev mob los xyuas kom meej ib tug uniform microstructure thiab txo qhov sib cais. Cov slabs cam khwb cia yog tom qab kuaj xyuas qhov tsis xws luag ua ntej mus rau theem tom ntej.
Cua sov thiab Tswj Rolling
Cov slabs tau rov ua dua rau qhov kub ntawm ib ncig ntawm 1150-1200℃kom paub meej tias ua tiav austenitization. Tom qab ntawd lawv raug rau kev tswj dov, uas muaj ntau qhov kev hla ntawm qhov sib txawv ntawm qhov kub thiab txias. Cov txheej txheem no ua kom zoo dua cov nplej loj, txhim kho cov khoom siv kho tshuab, thiab muab lub zog thiab qhov hnyav rau SPV490.
Quenching thiab Tempering
Tom qab dov, cov hlau phaj yog txias sai heev los ntawm quenching los ua ib qho nyuaj, nplua -grained microstructure. Tom qab ntawd lawv raug tempered ntawm qhov kub nruab nrab los txo cov kev ntxhov siab sab hauv, txhim kho ductility, thiab ua tiav qhov kawg sib npaug ntawm lub zog siab thiab zoo toughness yam ntxwv ntawm SPV490.
Tiav thiab Kev Tshuaj Xyuas
Cov phaj tempered yog straightened, txiav mus rau qhov ntev yuav tsum tau, thiab raug rau ntau yam kev soj ntsuam, nrog rau kev kuaj ultrasonic, tensile xeem, thiab kev ntsuam xyuas. Tsuas yog daim hlau uas ua tau raws li cov txheej txheem nruj nruj tau pom zoo rau kev xa khoom.
Daim ntawv thov
1. Boiler thiab Pressure Vessel Manufacturing
SPV490 yog siv dav hauv kev tsim cov boilers thiab cov hlab ntsha siab, nrog rau cov boilers muaj, fais fab nroj tsuag boilers, thiab siab hlab ntsha rau petrochemical thiab tshuaj industries. Nws yog tsuas yog siv rau cov khoom tseem ceeb xws li boiler drums, header kav, thiab cov hlab ntsha siab uas dais kub thiab siab.
2. Petrochemical thiab Chemical Equipment
Hauv kev lag luam petrochemical, SPV490 yog siv los tsim cov reactors, cov khoom sib cais, cov tso tsheb hlau luam, thiab cov kav dej rau kev ua cov roj av, roj av, thiab tshuaj lom neeg nruab nrab.
3. Cov cuab yeej tsim hluav taws xob
Nws yog ib qho tseem ceeb ntawm cov khoom siv hluav taws xob thermal, cov cuab yeej siv hluav taws xob nuclear, thiab hluav taws xob hluav taws xob txuas ntxiv mus. Cov ntawv thov tshwj xeeb suav nrog cov thee- hluav taws xob boiler cua sov qhov chaw, cov kav dej, thiab cov khoom siv siab ntawm cov roj turbine fais fab.
4. Heavy Machinery thiab Kev Tsim Kho Machinery
SPV490 yog siv rau hauv kev tsim cov siab-cov kabmob cov qauv ntawm cov tshuab hnyav, xws li hydraulic thooj voos kheej kheej, lub tank siab ntawm engineering machinery, thiab thauj khoom-cov kabmob ntawm cov khoom siv mining.
qhov zoo
Siab zog thiab zoo toughness
SPV490 sib xyaw ua ke siab tensile lub zog nrog zoo heev toughness, tshwj xeeb tshaj yog nyob rau hauv qis kub, uas pab tiv thaiv brittle puas thiab ua kom ntseeg tau kev ua tau zoo nyob rau hauv hnyav loads thiab hnyav tej yam kev mob.
Weldability zoo heev
Cov hlau muaj qhov zoo weldability, tso cai rau nws yooj yim los koom nrog cov txheej txheem vuam ntau yam tsis muaj qhov poob ntawm lub zog lossis qhov hnyav hauv tshav kub- qhov cuam tshuam, uas yog qhov tseem ceeb rau cov hlab ntsha loj thiab cov txheej txheem nyuaj.
Zoo Siab -Kev Ua Haujlwm Kub
SPV490 tswj cov khoom siv kho tshuab ruaj khov ntawm qhov kub siab, uas qhia kev tiv thaiv rau kev nkag siab thiab thermal qaug zog, ua rau nws tsim nyog rau lub sijhawm ntev - kev pabcuam hauv boilers thiab cov khoom siv fais fab nroj tsuag.
Zoo Corrosion Resistance
Nrog rau kev ua kom zoo thiab huv steelmaking, nws muaj qhov tsim nyog tiv thaiv corrosion thiab qee yam corrosive xov xwm, ua rau lub neej ntev kev pab cuam hauv petrochemical thiab tshuaj siv.
Txhim khu kev qha Formability thiab Processability
Cov hlau tuaj yeem tsim, khoov, thiab tshuab siv cov txheej txheem kev lag luam, uas yooj yim rau kev tsim khoom thiab txo cov nqi tsim khoom rau cov hlab ntsha siab thiab cov tshuab hnyav.
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.
Dab tsi yog qhov txawv ntawm SPV490 thiab A36 steel?
SPV490 muaj lub zog siab dua (yield zog Ntau dua lossis sib npaug ntawm 315MPa vs. A36's Ntau dua lossis sib npaug ntawm 250MPa) thiab zoo dua corrosion tsis kam tshaj A36. A36 yog rau kev siv cov qauv siv dav dav, thaum SPV490 yog tsim rau kev siv nkoj nkoj thiab lub nkoj siab.
SPV490 puas tuaj yeem txiav los ntawm plasma txiav?
Yog lawm, plasma txiav yog tsim rau SPV490. Nws tuaj yeem txiav steel phaj ntawm ntau yam thicknesses zoo thiab raug. Kev txiav tsis raug (tam sim no, roj ntws) yuav tsum tau teeb tsa kom ntseeg tau tias cov npoo npoo du thiab tsis muaj kev puas tsuaj thermal.
Dab tsi yog qhov kev pab cuam lub neej ntawm SPV490 hauv marine ib puag ncig?
Nrog rau kev tiv thaiv zoo - kev kho corrosion thiab kev saib xyuas tsis tu ncua, SPV490 tuaj yeem muaj kev pab cuam lub neej ntawm 20-30 xyoo nyob rau hauv marine ib puag ncig. Lub neej kev pab cuam yuav txawv nyob ntawm seb dej hiav txwv ntsev thiab kev ua haujlwm.
Puas yog SPV490 muaj cov ntsiab lus alloying?
Yog lawm, SPV490 muaj cov kab sib xyaw ua ke xws li Cu (tsawg dua lossis sib npaug li 0.30%), Cr ( Tsawg dua lossis sib npaug li 0.30%), thiab Ni ( Tsawg dua lossis sib npaug li 0.50%). Cov ntsiab lus no txhim kho nws lub zog, toughness thiab corrosion kuj yam tsis tau nce nqi ntau lawm.
Dab tsi yog qhov kev ua tau zoo ntawm SPV490?
SPV490 muaj kev ua haujlwm zoo heev. Nws tuaj yeem tiv taus 180℃txias dabtsi yog khoov kev sim (inch=2-3 zaug phaj thickness) tsis muaj kab nrib pleb, qhia tau zoo ductility thiab adaptability rau structural shaping.
SPV490 puas tuaj yeem siv rau hauv cov qauv cua turbine?
Yog lawm, SPV490 muaj feem xyuam rau sab ntug dej hiav txwv cua turbine hauv paus thiab kev txhawb nqa. Nws lub zog siab thiab corrosion kuj tuaj yeem tiv taus cua, nthwv dej thiab dej hiav txwv yaig nyob rau sab ntug dej hiav txwv.
Dab tsi yog tus qauv ntsuas tensile rau SPV490?
Kev ntsuas tensile ntawm SPV490 ua raws li JIS Z 2241. Cov qauv raug coj los ntawm cov hlau phaj, thiab cov kev ntsuam xyuas tau ua nyob rau hauv chav tsev kub los ntsuas tensile lub zog, yield zog thiab elongation tus nqi los xyuas kom meej raws li cov qauv.
Puas yog SPV490 muaj nyob rau hauv daim ntawv coil?
Feem ntau, SPV490 yog muab los ua steel phaj. Coil daim ntawv tsis tshua muaj vim nws cov kev siv tseem ceeb (nkoj tsim, cov hlab ntsha siab) xav tau cov phaj tiaj. Txawm li cas los xij, qee cov tuam ntxhab tuaj yeem muab cov coils rau cov kev xav tau tshwj xeeb.
Dab tsi yog qhov cuam tshuam lub zog xav tau rau SPV490?
Rau SPV490, qhov tsawg kawg nkaus cuam tshuam lub zog (V-notch) ntawm 0℃yog 31J (raws li JIS Z 2242). Qhov no ua kom cov hlau muaj qhov toughness txaus los tiv thaiv kev cuam tshuam hauv kev ua haujlwm hauv hiav txwv.
Yuav ua li cas txheeb xyuas SPV490 steel daim hlau?
SPV490 steel daim hlau feem ntau yog cim nrog qib (SPV490), tus qauv (JIS G 3115), thickness, dav thiab cov chaw tsim khoom lub logo. Kev tshuaj xyuas tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab tuaj yeem lees paub nws tus kheej.