Silicon nitride bonded silicon carbide cib yog cov khoom siv refractory zoo siv dav hauv metallurgy, ceramics, tshuaj lom neeg kev lag luam thiab lwm yam kev lag luam. Nws qhov kev ua tau zoo cuam tshuam los ntawm ntau yam, ntawm cov molding ntim ceev yog ib qho tseem ceeb cuam tshuam rau nws cov kev ua tau zoo. Tsab ntawv xov xwm no yuav tshawb txog qhov cuam tshuam ntawm molding ntim qhov ceev ntawm kev ua haujlwm ntawm silicon nitride bonded silicon carbide cib los ntawm cov nram qab no.
1. Lub ntsiab lus ntawm molding ntim ceev
Moulded bulk ntom yog hais txog qhov ntom ntawm silicon nitride ua ke nrog silicon carbide cib thaum lub sij hawm sintering. Nws qhia txog qhov loj ntawm qhov porosity ntawm cov khoom thiab ncaj qha cuam tshuam rau cov khoom siv hluav taws xob thiab thermal ntawm cov khoom.
2. Cov nyhuv ntawm molding ntim ceev ntawm cov khoom siv kho tshuab
Raws li molding ntim ceev, cov khoom siv ntawm silicon nitride bonded silicon carbide bricks maj mam txhim kho. Cib nrog lub siab ntim siab muaj zog muaj zog dua thiab lub zog compressive. Qhov no feem ntau yog vim qhov nce hauv qhov ntom ntom txo qhov porosity ntawm cov khoom siv thiab txhim kho cov txheej txheem lub zog ntawm cov khoom.
3. Cov nyhuv ntawm molding ntim ceev ntawm thermal zog
Lub molded bulk ntom kuj muaj ib qho tseem ceeb ntawm lub thermal zog ntawm silicon nitride bonded silicon carbide cib. Raws li qhov ntim ceev nce, thermal conductivity ntawm cov khoom maj mam txo, thiab thermal expansion coefficient kuj maj mam txo. Qhov no qhia tau hais tias cib nrog cov ntim siab ceev tau zoo dua thermal poob siab thiab thermal stability.
4. Cov nyhuv ntawm molding ntim ceev ntawm huab cua tsis kam
Lub molded bulk ntom kuj cuam tshuam rau huab cua tsis kam ntawm silicon nitride bonded silicon carbide cib. Thaum qhov kub thiab txias, qhov pores hauv cov cib tau yooj yim nqus cov pa roj thiab dej vapor, ua rau lub ntsej muag ntawm cov cib yuav corroded thiab oxidized. Cib nrog cov siab ntom ntom ntom muaj tsawg dua cov nplaim thiab tsawg porosity, thiab yog li ntawd muaj huab cua zoo dua.
Hauv cov ntsiab lus, molded bulk ntom muaj ib qho tseem ceeb ntawm kev ua haujlwm ntawm silicon nitride bonded silicon carbide cib. Txhawm rau kom tau txais kev ua haujlwm siab ntawm silicon nitride bonded silicon carbide cib, molding ntim ceev yuav tsum tau ua kom zoo los ntawm kev tswj cov txheej txheem sintering thiab qhov ntom ntawm cov khoom yuav tsum tau txhim kho kom tau txais cov khoom zoo dua qub, thermal zog thiab huab cua tsis kam.
