Cov khoom ntawm lub ladle swb phaj xav tauKev kub siab heev tsis kam, thermal poob siab kuj, yaig tsis kam thiab tshuab zogTxhawm rau tiv thaiv cov nplawm ntawm Molten Steel (saum toj 1600 degree), tshuaj yaig thiab nquag hloov pauv. Cov hauv qab no yog cov yam ntxwv thiab cov kev xav tau ntawm cov ntaub ntawv tseem ceeb rau kev quav swb daim hlau:
1. Cov khoom siv tseem ceeb
Ladle swb yog feem ntau ua los ntawmsib xyaw ua ke recosite, lub ntsiab ntawm cov uas suav nrog:
alumina (al₂o₃): Muab kev kub ntxhov siab thiab cov yaig tsis kam.
Cov pa roj carbon (c, graphite lossis carbon dub): txhim kho thermal poob siab tsis kam thiab saws yaig tsis kam.
Cov roj av hlau (xws li si, al, mg): txhim kho oxidation tsis kam thiab sintering lub zog.
Binder (cob qhia lossis suab): Tom qab kev sib sau, nws yog carbonized ntawm qhov kub siab los ua cov pa roj carbon monoxide.
Hom Swb Cov Khoom Siv
Cov Khoom Siv Hom Lub Cheebtsam Tseem Ceeb Siv Tau Scenarios Ntau Tshaj Plaws Kev Ua Haujlwm Kub
Txhuas Carbon Carbon (al₂o₃-c)AL₂O₃ (60-80%) + c (10-20} Cov hlau me me, nruab nrab, {}}}}}} degree
Zirconium-carbon (zro₂-c)Zogy₂ (40-60%) + al-oxygen hlau, Tshwj xeeb hlau (stainless hlau (loj-manganese hlau) {5} degree
Magnesia carbonaceous (MgO-C)MGO ({70-80%) + c ({{}}}}}}} {{{}}} degree
COMPOSITE XIM PHAJ (AL₂O₃-ZO₂-C)AL₂O₃ + ZRO₂ + c ultra-qis carbon hlau, siab huv steel hlau saum 1750 degree
2. Cov khoom siv tseem ceeb
(1) Lub zog siab
Daim ntawv swb yuav tsum muaj kev ruaj khovFLEXURAL HEEV (ntau dua los yog sib npaug rau 10MPA)thiabCompressive lub zog (ntau dua los yog sib npaug li 50mpa)Ntawm qhov kub tshaj 1600 degree los tiv thaiv kev tawg los ntawm Molten Steel Scouring.
Qhov sib ntxiv ntawmZeTxhim kho qhov kub-kub nyuaj (theem kev hloov kho nruj ua kom zoo).
(2) Kev ua haujlwm kub tsis kam
Nquag qhib thiab kaw ntawm daim ntaub qhwv tsis tau tuaj yeem ua rau sov hloov cua txias (piv txwv li ntawm 1600 degree rau chav tsev kub).
Carbon (graphite) tau qhiaTxhawm rau txo cov coefficient ntawm thermal expansion thiab txo cov thermal kev ntxhov siab tawg.
Tsim Qauv Microporous Tsimtuaj yeem tsis muaj kev ntxhov siab thermal.
(3) Tsis kam rau Molten Steel / Slag Yaig
AL₂O₃resistions acidic slag,Tus nyomtsis kam ua alkaline slag, thiabZeMuaj yaig zoo heev tiv thaiv cov pa high-oxygen molten hlau (xws li stainless hlau).
Pa Roj Oxidation Kho(Xws li ntxiv cov sic los yog ib lub hmoov) tuaj yeem txo cov pa oxidation ntawm cov pa roj carbon ntawm cov roj kub.
(4) oxidation tsis kam
Cov pa roj carbon yog yooj yim oxidized (co / colol volatilization) ntawm qhov kub thiab ua kom muaj kev sib tw porosity.
Anti-oxidants (xws li si, al, b₄c)Tsim cov txheej tiv thaiv (sio₂, al₂o₃) ntawm qhov kub thiab txias kom qeeb qeeb oxidation ntawm carbon.
(5) Tsawg wettability
The slide plate needs to reduce the wettability of the molten steel on the material (contact angle>90 degree) los tiv thaiv cov hlau me nyuam hlau los ntawm kev nkag mus.
Graphite cov khoom siv hlau-repellenttuaj yeem txo cov nplaum ntawm cov hlau molten.
3. Khoom siv thev naus laus zis
(1) Particle Mloup
Coarse hais ({0}} mm) muab lub cev pob txha taub hau, thiab hmoov zoo (<0.1mm) fills the pores to improve density.
(2) Kev Hloov Kho Ntxiv
Nws yog xim hlau Silicon (Si): Ua ib qho kev tiv thaiv cov duab zaj duab xis ntawm cov kub.
Boron Carbide (B₄C): Txhim kho cov oxidation tsis kam thiab coj kev tiv thaiv.
YTTRIA (Y₂O₃): Kauj ruam cov ntsiab lus siv Crystal ntawm Zro₂ thiab tiv thaiv kev tawg thaum lub sij hawm hloov pauv ntawm qhov kub.
(3) cov txheej txheem tshwj xeeb
Isostatic nias: Cov khoom siv nce ntom ntom ntom ntom ntom ntom ntom thiab thiab.
Kev kub kub kub (1400-1600 degree): Ua lub zog ruaj khov ceramic-carbon composite qauv.
4. Xaiv cov ntaub ntawv swb raws li hom steel
Steel hom kev pom zoo swb cov khoom vim li cas
Carbon Hlau Alumina-Carbon (Al₂o₃-c) Tus nqi qis, zoo thermal poob siab kuj
Stainless Hlau Zirconia-Carbon (Zro₂-c) tiv taus kev tawm tsam los ntawm cov pa high-oxygen molten hlau
High-Manganese steel zirconia-carbon lossis composite xaub phaj resistant mus tua los ntawm mn thiab feo slag
Ultra-Tsawg Carbon Hlau Tshuab Xaws Phaj (Al₂o₃-Zro₂-c) Tiv Thaiv Cov Khoom Siv Hluav Taws Xob, Muaj Kev Huv Huv Kom Huv
Calcium-treated steel Magnesium carbonaceous (MgO-C) Resistant to highly alkaline slags (CaO/SiO₂>2)
