Yuav ua li cas txhim kho oxidation tsis kam ntawm silicon carbide kiln rooj tog
1. optimize cov khoom muaj pes tsawg leeg
Ntxiv antioxidants
Hlau oxide additives: Ntxiv me me ntawm cov hlau oxides, xws li txhuas oxide (Al₂O₃), zirconium oxide (ZrO₂), thiab lwm yam. Cov hlau oxides no tuaj yeem hnov mob nrog silicon thiab oxygen rau ntawm qhov chaw ntawm silicon carbide ntawm qhov kub thiab txias los tsim kom muaj kev ruaj khov. silicate iav theem, uas ua rau lub qhov hws ntawm silicon carbide thiab tiv thaiv ntxiv diffusion ntawm oxygen. Feem ntau, tus nqi ntawm txhuas oxide ntxiv yog li ntawm 1% - 5% (cov feem ntau), thiab cov nyiaj zirconium oxide ntxiv yog li ntawm 0.5% - 3% , uas tuaj yeem ua tau zoo. txhim kho kev ua haujlwm antioxidant.
Tsis tshua muaj lub ntiaj teb cov khoom ntxiv: xws li lanthanum (La) thiab cerium (Ce) hauv lanthanide series. Cov ntsiab lus tsis tshua muaj hauv ntiaj teb tuaj yeem tsim lub ntiaj teb tsis tshua muaj oxides ntawm qhov chaw ntawm silicon carbide. Cov oxides no muaj tshuaj lom neeg ruaj khov thiab tuaj yeem tiv thaiv kev yaig oxygen. Feem ntau, tus nqi ntawm lub ntiaj teb tsis tshua muaj ntxiv yog li ntawm 0.1% - 3%.
2. Kev ntsuas kev kho deg
Txheej
Ceramic txheej: Ib txheej ntawm high-temperature ceramic txheej, xws li mullite txheej, alumina txheej, thiab lwm yam, yog siv rau saum npoo ntawm silicon carbide kiln rooj tog. Cov txheej txheej tuaj yeem siv tau los ntawm kev txau, dipping, thiab lwm yam. Piv txwv li, alumina txheej npaj los ntawm cov plasma txau muaj qhov tuab ntawm li 50-200μm, uas tuaj yeem tsim cov yeeb yaj kiab tiv thaiv ntawm qhov kub thiab txias, tiv thaiv kev sib cuag ntawm oxygen thiab silicon carbide thiab txhim kho kev ua haujlwm tiv thaiv oxidation.
Hlau txheej: xws li npib tsib xee (Ni) thiab cobalt (Co) txheej. Cov hlau txheej no tuaj yeem tsim cov yeeb yaj kiab los tiv thaiv oxidation hlau oxide nyob rau saum npoo ntawm silicon carbide, yog li txhim kho oxidation tsis kam. Cov txheej thickness feem ntau yog los ntawm ob peb microns mus rau kaum microns. Piv txwv li, lub thickness ntawm thermal sprayed nickel-raws li txheej yuav nyob ib ncig ntawm 10-50μm.
3. Txhim kho cov txheej txheem npaj
Txhim kho qhov ceev
Qhov ntom ntawm silicon carbide kiln rooj tog tuaj yeem txhim kho los ntawm kev ua kom zoo ntawm cov txheej txheem sintering, xws li nce qhov kub ntawm sintering, ncua sij hawm sintering, thiab siv high-pressure sintering. Piv txwv li, nce lub sintering kub ntawm 2000 degree mus rau 2200 degree thiab tsim nyog ncua lub sij hawm sintering yuav txo tau lub porosity ntawm silicon carbide kiln rooj tog thiab txo cov channel rau oxygen nkag mus rau hauv, yog li txhim kho cov kev tiv thaiv oxidation.
Optimizing siv lead ua qauv
Thaum lub sij hawm npaj cov txheej txheem, cov txheej txheem crystallization ntawm silicon carbide yog tswj los ua kom cov qauv siv lead ua kom tiav thiab zoo ib yam. Piv txwv li, noob siv lead ua induced crystallization thiab lwm txoj kev yog siv los txhawb txoj kev loj hlob ntawm silicon carbide crystals raws li ib qho kev qhia siv lead ua, tsim cov qauv siv lead ua ntau dua thiab txhim kho lub peev xwm antioxidant.
Yog tias koj xav paub yuav ua li cas txhawm rau txhim kho oxidation tsis kam ntawm silicon carbide kiln rooj tog, koj tuaj yeem ua raws li www.hshightec.com !
