Cov txheej txheem dav dav ntawm cov khoom noj khov-qhuav
1. Preprocessing
Cov ntaub ntawv sib txawv xav tau kev kho kom tsim nyog ua ntej ua ntej khov thiab khov-qhuav kom lawv yooj yim rau txheej txheem.Cov nqaij thiab cov khoom siv hauv dej yuav tsum tau kuaj thiab tshuaj xyuas, txias thiab laus, thiab hlais.
2. Cov khoom ua ntej khov
Cov khoom yog subpackaged nyob rau hauv cov thawv tsim nyog thiab ua ntej khov hauv qab ntawm eutectic point ua ntej nws tuaj yeem khov-qhuav.Lub hom phiaj ntawm pre-freezing yog ua kom cov khoom tseem ceeb ntawm cov khoom tsis hloov, thiab cov khoom khov-qhuav uas tsim muaj cov qauv tsim nyog los pab txhawb dej sublimation.
3. Khoom sublimation ziab
Cov txheej txheem sublimation ua ntej cov dej khov khov ntawm cov khoom ploj yog hu ua sublimation ziab.Nyob rau lub sijhawm no, xyuam xim rau kev muab cov cua sov tsim nyog los xyuas kom meej tias cov sublimation ua tiav yam tsis tau ncav cuag qhov taw tes eutectic.Yog tias qhov kub thiab txias qis dhau, lub sijhawm sublimation ntev dhau lawm.Yog tias qhov kub thiab txias siab tshaj qhov taw tes eutectic, cov khoom ntim yuav raug txo, thiab cov npuas yuav nyuaj rau yaj.