Cov khoom siv F91 yog ib lub zog loj, chromium-molybdenum {} Nws tau ua kom muaj kev sib txuam ntawm cov tshuaj lom neeg thiab cov khoom siv tshuab hluav taws xob uas xa cov kev ua tau zoo tshaj plaws piv rau cov qauv cov qauv qis qis, ua haujlwm ntau dua thiab txhim kho.
F91 Khoom Siv Cov Khoom Siv Neeg Kho Tshuab
F91 cov khoom siv tau teev tseg kom xa cov khoom siv tau zoo heev, cov khoom pov thawj ntawm F91 lossis txawm tias muaj lub zog kho cua sov zoo li cov txheej txheem cua sov txo cov cua sov kev ntxhov siab thiab ib feem ntawm qhov hnyav thaum muaj kev nyab xeeb uas muaj cov xovxwm siab {}}
Kev sib luag yog nws lub zog zoo tshaj plaws thiab muaj zog, lub ntsiab lus rau kev nce qib kom maj mam ua kom muaj ntau txhiab lub sijhawm ua haujlwm ntawm ntau txhiab lub sijhawm - ib qho kev tsim khoom tseem ceeb rau ntau txhiab lub sijhawm - ib qho kev tsim khoom tseem ceeb rau ntau txhiab lub sijhawm ua haujlwm rau ntau txhiab tus neeg tau tsim los ua haujlwm kom ntau dhau los ua haujlwm kom muaj ntau txhiab xyoo
Thaum nws chav tsev kub nruj yog qhov zoo, cov khoom siv muaj tseeb nyob rau hauv kev tswj hwm cov cua sov thiab cov neeg kho tshuab hluav taws xob ntsib hauv nws cov ntawv thov npaj {}}
Kev Kho Cua Sov
Ua tiav cov khoom zoo tshaj plaws tau sau tseg hauv F91 Cov Khoom Siv Tshwj Xeeb Ua Raws Li Kev Kho Mob Kub Kub}}} Tus qauv kev ua kom sov li qub, thiab tom qab ntawd txias nws hauv tseem huab cua . Cov kauj ruam no ua kom cov grain qauv thiab yaj tag nrho cov khoom siv alloy.
Tam sim ntawd tom qab ib txwm ua, cov hlau yuav tsum yub yauv mus rau qhov kub, tuav, thiab tom qab ntawd}} temper yog qhov tseem ceeb heev yog qhov tseem ceeb heev; nws hloov lub nyuaj, qauv dav hlau tom qab ib txwm ua rau kev nyuaj, ductile microstructure hu ua tempered martensite.
Ntau qhov tseem ceeb, nws precipitates zoo, cov carbides ntawm Vanadium thiab Niobium nyob rau hauv cov qauv F91 kev zam lub siab thiab nkag dag zog rau {}}
F91 Cov Kev Siv Khoom Siv
F91 Cov Khoom Siv Tshwj Xeeb yog txiav rau cov khoom siv ua haujlwm ntawm cov roj hluav taws xob ntau dua, tshwj xeeb yog cov roj hluav taws xob ntau dua thiab cov cua sov} Koj yuav pom F91 siv ntau yam hauv:
- Super thiab re rhaub dej: nqa cov chav kub uas tsis pub dhau lub boiler .
- Cov kav dej loj thiab headers: thauj cov high-siab, siab-kub chav ntawm lub rhaub dej rau lub turbine.
- Turbell Casing thiab Cheebtsam: Qhov Ntu Raug Rau Cov Chav High-Kub Hauv Lub Turbine nws tus kheej.
Dhau lub hwj chim ntau tiam, F91 tseem teev rau cov kav dej siab, thiab kev kho kub ua ke tau muab cov khoom siv kub ua ke tau muab cov khoom siv kub ua ke tau muab cov txiaj ntsig kub ua ke tau muab cov khoom siv kub ua ke tau muab cov txiaj ntsig kub ua ke tau muab cov khoom siv kub ua ke tau muab cov khoom siv kub ua ke tau muab ib qho txiaj ntsig zoo tshaj plaws muab cov txheej txheem cua sov {2}
F91 COV KHOOM SIVCov Qauv thiab Cov Ntawv
F91 cov khoom tau tswj hwm los ntawm cov qauv hauv ntiaj teb uas nthuav qhia nws cov tshuaj lom neeg, cov txheej txheem kev kuaj mob, thiab cov qauv siv tau xws li:
- ASTM A213: Npog Seamless Ferritic thiab Austenitic Alloy-Hlau Boiler, Super Pauv Ua Pauv Kev Txauv.
- ASTM A335: npog seamless ferritic alloy-steel yeeb nkab rau kev pab kub siab.
- ASTM A387: Them Cov Ntaub Ntawv Chromium-Molybdenum Alloy Hlau Daim Hlau rau Siab Hlab Hlais (Qib 91).
- En 10216-2: Seamless Cov Hlau Hlawv Rau Lub Siab - Part 2: Tsis-Alloy Steel Leeg Nrog Cov Khoom Kub (X10crmovnb {{.
F91 tau yooj yim rau hauv cov ntawv uas xav tau rau nws cov ntawv thov, feem ntau yog seamless hlab thiab cov paib, thiab kev lom zem, flanges, li qub {1}.
F91 Cov Khoom Siv Khoom Ntau Lawm
Ua haujlwm nrog F91 cov khoom siv yuav tsum paub meej vim nws cov txheej txheem weldreat {}}}}}}}} Weld-Weld-Weld Kev Kho Mob Thaum Ntxoo Vuam .
Pwhal koom nrog cua sov welded tivthaiv rau cov npau taws ntau (feem ntau}}}. theem no yog tsis muaj kev sib ceg; nws tempers lub hard, Cheeb Tsam Weld hlau thiab tshav kub-cuam tshuam thiab kev hloov pauv qhov sib koom ua ke.
Tswj kev cuam tshuam qhov kub thiab txias thaum nws hajy-kho kom zoo dua, tuaj yeem ua rau nws hajy-}
F91 Cov ntsiab lus zoo thiab qhov tsis zoo
F91 Cov Ntsiab Lus Tshwj Xeeb muab cov txiaj ntsig zoo: superior high-}} Kev Nyuaj Siab Hluav Taws Xob {}} Cov Khoom Siab Ntau Tshaj Plaws Thermal nthuav tawm piv rau antenenitic steels kuj muaj txiaj ntsig {}}
Txawm li cas los xij, nws tseem muaj qhov tsis zoo: Tus nqi ntau dua rau cov txheej txheem acidic lossis cov txheej txheem corrosion {} txias dhau qeeb tom qab tempering .
F91 Cov Khoom Siv Khoom Siv Hluav Taws Xob F914 Tshaj Tawm Ntau Yam Khoom Siv Hluav Taws Xob, tshwj xeeb} Thaum High-Tiav Kev Ua Haujlwm Zoo rau cov kav dej siab thiab ua haujlwm siab yog cov khoom lag luam cov hlab, F91 cov khoom siv muab cov pov thawj thiab qhov tseem ceeb .
