Vim li cas thiaj xaiv Zirconia Tundish Nozzles rau Molten Steel Casting?
Apr 24, 2026
Nyob rau hauv niaj hnub nruam casting txheej txheem, lub ladle nozzle yog ib qho tseem ceeb tivthaiv rau kev tswj cov ndlwg ntawm molten steel, thiab nws cov kev ua tau ncaj qha cuam tshuam rau purity ntawm molten steel, pouring stability, thiab qhov kawg zoo ntawm cov hlau. Raws li qhov kev thov rau siab- cov hlau zoo txuas ntxiv nce ntxiv, cov khoom siv nozzle ib txwm tsis tuaj yeem ua kom tau raws li cov kev xav tau ntawm kev ua haujlwm siab - kub, ntev - lub sijhawm, thiab ib puag ncig corrosive heev. Tawm tsam qhov teeb meem no,zirconia ladle nozzlestau dhau los ua qhov kev daws teeb meem zoo tshaj plaws rau kev nce tus naj npawb ntawm cov steel mills.
Vim li cas Zirconia Zoo dua rau Tundish Nozzles?
Zirconia (ZrO₂) yog cov khoom siv siab tshaj -cov khoom siv refractory yam ntxwv los ntawm qhov kub siab melting point thiab tshuaj lom neeg ruaj khov zoo heev. Thaum lub sij hawm molten steel pouring txheej txheem, nws tswj cov txheej txheem stability nyob rau hauv siab heev - kub thiab resistant rau deformation los yog puas.
Piv nrog rau cov alumina zoo tib yam lossis alumina- cov ntaub ntawv carbon, zirconia muaj kev tiv thaiv zoo tshaj plaws, tshwj xeeb tshaj yog nyob rau hauv qhov nyuaj molten steel ib puag ncig uas muaj cov pa oxygen, sulfur, thiab lwm yam, qhov uas nws ua rau muaj kev ruaj ntseg ntau dua. Qhov no yog ib qho ntawm cov laj thawj tseem ceeb uas yog vim li cas nws thiaj li siv dav hauv siab -kawg nruam casting txheej txheem.
Txhim kho Molten Steel Purity
Thaum cov hlau molten ntws los ntawm lub ladle nozzle, yog tias cov khoom tsis zoo txaus, kev yaig lossis tshuaj lom neeg tuaj yeem tshwm sim tau yooj yim, qhia impurities thiab cuam tshuam cov purity ntawm cov hlau. Zirconia ladle nozzles, txawm li cas los xij, muaj cov tshuaj lom neeg zoo heev thiab tsis zoo li cuam tshuam nrog cov hlau molten.
Qhov no txhais tau tias:
- Tsawg dua cov uas tsis yog{0}} metallic suav nrog
- Ntau ruaj khov molten steel txaus
- Siab dua - zoo steel tiav
Qhov no yog qhov tseem ceeb tshwj xeeb rau kev tsim cov qib siab -kawg steel (xws li bearing steel, stainless hlau, thiab automotive steel).
Anti-Clogging
Nozzle clogging yog ib qho teeb meem tshwm sim hauv kev nruam nruam, uas txo cov kev ua tau zoo thiab tuaj yeem ua rau kev kaw thiab ua tsis tau zoo.Zirconia nta tsis muaj dej noo thiab zoo heev los tiv thaiv- adhesion kev ua tau zoo, tiv thaiv kev sib koom ua ke los ntawm kev tso rau ntawm phab ntsa nozzle.
Piv nrog cov ntaub ntawv ib txwm muaj, zirconia tundish nozzles tuaj yeem:
- Zoo txo qhov nodulation thiab clogging txaus ntshai
- Tswj ruaj khov molten steel ntws tswj
- Ncua sijhawm nruam casting
Nws yog tshwj xeeb tshaj yog haum rau ntev -lub sij hawm nruam casting ntau lawm.
Lub neej ua haujlwm ntev
Txawm hais tias tus nqi ntawm chav tsevzirconia tundish nozzlesyog tus siab dua, lawv xa tau zoo dua tag nrho cov nqi kev ua tau zoo.Nrog zoo heev yaig thiab scour kuj, lub nozzles nyob ruaj khov nyob rau hauv ntev - lub sij hawm cuam tshuam ntawm siab - kub molten steel.
Cov txiaj ntsig tseem ceeb hauv kev siv tswv yim:
- Kev pabcuam ntev dua
- Tsawg zaus hloov
- Tsawg zog thiab raug kaw
Nyob rau hauv lub sij hawm ntev, nws zoo txhim kho efficiency ntau lawm thiab txiav cov nqi khiav lag luam.
Kho kom haum rau siab- kub thiab siab - nrawm nruam nruam
Raws li kev lag luam steel txhim kho mus rau kev ua haujlwm siab thiab kev ua haujlwm siab, kev nruam nruam nrawm nrawm ntxiv, nce siab dua rau cov khoom siv refractory.
Nrog rau qhov siab tshaj -kub tsis kam thiab thermal shock stability, zirconia tundish nozzles zoo kawg nkaus ua tau raws li qhov xav tau ntawm siab - nrawm casting.
Nws tuav ruaj khov kev ua tau zoo nyob rau hauv molten steel yaig thiab nquag pib- nres, muaj zog tawg thiab kev puas tsuaj.
Vim li cas Ntau thiab Ntau Hlau Zeb Xaiv Zirconia Nozzles?
Zuag qhia tag nrho, zirconia ladle nozzles tsis tsuas yog ua tau zoo nyob rau hauv siab -kub tsis kam, corrosion resistance, thiab clog resistance, tab sis kuj zoo txhim kho molten steel purity thiab ntau lawm stability. Rau cov tuam txhab nrhiav siab - cov hlau zoo thiab cov khoom siv tau zoo, qhov no yog qhov kev ntseeg siab dua thiab ntev - xaiv.
Yog tias koj tab tom nrhiav kev ruaj khov thiab ruaj khov ladle nozzle tov, cov khoom siv zirconia yog undoubtedly tsim nyog xav txog.
