Dab tsi yog cov yam tseem ceeb uas cuam tshuam rau qhov kub thiab txias ntawm alumina ceramics?

Ua ib feem tseem ceeb ntawm kev tiv thaiv kev hnav khaub ncaws hauv kev lag luam, kev tiv taus kub siab ntawmalumina ceramicsyeej ib txwm yog ib qho ntawm txhua tus neeg lub siab xav. Tshwj xeeb tshaj yog nyob rau hauv qee qhov kev ua haujlwm uas muaj kev hloov pauv kub loj lossis qhov kub thiab txias siab, kev xaiv hom ceramics uas tiv taus hnav thiab txoj kev teeb tsa kom raug yog qhov tseem ceeb heev rau kev tsim khoom muaj kev nyab xeeb thiab kev txuag hluav taws xob thiab kev ua haujlwm zoo. Yog li dab tsi yog cov yam tseem ceeb uas cuam tshuam rau qhov kub thiab txias ntawm cov ceramics uas tiv taus hnav?

1. Kev huv ntawm cov khoom siv ntawm alumina ceramics: Cov khoom siv ceramics uas tsis yooj yim hnav uas peb feem ntau tham txog feem ntau yog hais txog alumina hnav-resistant ceramics, thiab qhov huv ntawm alumina muaj qhov cuam tshuam ncaj qha rau qhov kub siab tiv taus ntawm cov khoom siv ceramics uas tsis yooj yim hnav. Alumina hnav-resistant ceramics raug sintered ntawm qhov kub siab ntawm 1700 ° C thiab muaj kev tiv taus kub zoo heev. Txawm li cas los xij, hauv kev siv tiag tiag, yog tias qhov huv ntawm alumina tsis siab, ceramics yuav muaj lwm yam khoom. Cov ntaub ntawv no yuav qhia txog kev nthuav dav thermal thiab kev cog lus sib txawv ntawm qhov kub siab lossis txias thiab cua sov tam sim ntawd vim muaj cov khoom sib txawv. Qhov xwm txheej no tsis pom tseeb thaum qhov kub hloov qeeb lossis qhov ntau ntawm kev hloov pauv me me, tab sis thaum qhov kub hloov pauv loj heev lossis ntsib qhov kub siab ntawm 800, 900 lossis txawm tias 1,000 degrees, qhov kev hloov pauv no yuav muaj qhov cuam tshuam loj heev, thiab nws yog qhov tsim nyog los xaiv cov khoom siv ceramics uas muaj kev huv siab dua, xws li Jingcheng's K99 alumina ceramics.

2. Txoj kev teeb tsa: Txoj kev teeb tsa ntawm cov khoom siv ceramic uas tiv taus hnav kuj muaj qhov cuam tshuam ncaj qha rau qhov kub thiab txias ntawm cov khoom siv ceramic. Piv txwv li, thaum cov nplaum ceramic ib txwm siv los nplaum cov khoom siv ceramic, qhov kub thiab txias siab uas nws tuaj yeem tiv taus yog li 150 ° C. Jingcheng cov nplaum ceramic tshwj xeeb tuaj yeem ua rau qhov kub thiab txias no nce mus txog 350 ° C, tab sis thaum qhov kub thiab txias ntawm cov nplaum dhau lawm, qhov viscosity ntawm cov nplaum yuav poob qis, uas tuaj yeem ua rau cov khoom siv ceramic poob tawm yooj yim. Piv nrog rau txoj kev nplaum, txoj kev vuam stud thiab cov khoom siv ceramic uas ntsia los ntawm qhov dovetail tuaj yeem tiv taus qhov kub thiab txias siab ntawm 750 ° C. Cov yeeb nkab ceramic uas tsis muaj zog uas tsim tshiab thiab tsim los ntawm Jingcheng tuaj yeem ua rau txoj kev teeb tsa tsis muaj zog ntawm qhov kub thiab txias ntawm cov khoom siv ceramic.

3. Cov ntaub ntawv sib xyaw nrog cov khoom siv av nplaum: Cov khoom siv av nplaum feem ntau siv ua ke nrog lwm cov ntaub ntawv, xws li hlau, roj hmab, thiab lwm yam. Hauv qhov no, thaum peb txiav txim siab qhov kub thiab txias ntawm cov khoom siv av nplaum uas tiv taus hnav, peb yuav tsum xav txog qhov kub thiab txias ntawm cov ntaub ntawv sib xyaw. Piv txwv li, cov ntaub ntawv av nplaum roj hmab tsis haum rau siv rau hauv qhov kub thiab txias.

Hauv kev xaus, muaj peb yam tseem ceeb uas cuam tshuam rau qhov kub thiab txias ntawmcov khoom siv ceramic uas tsis yooj yim hnav, uas yog qhov huv ntawm cov khoom siv ntawm cov khoom siv ceramics nws tus kheej, txoj kev teeb tsa ntawm cov khoom siv ceramics, thiab cov ntaub ntawv sib xyaw nrog cov khoom siv ceramics. Cov yam no yuav tsum tau xav txog kom meej thaum xaiv cov khoom siv ceramics uas tiv taus kev hnav.