Txiv tsawb yog ib qho ntawm cov txiv hmab txiv ntoo uas peb feem ntau noj. Txhawm rau kom khaws cov khoom noj khoom haus thiab cov xim qub ntawm cov khoom ua tiav txiv tsawb, cov kws tshawb fawb sivFua paDryer rau kev tshawb fawb txog kev ziab khov hauv lub tshuab nqus tsev. Kev tshawb fawb txog kev ziab khov ntawm txiv tsawb feem ntau tsom mus rau cov txiv tsawb hlais thiab hmoov txiv tsawb.
Cov txheej txheem khov-qhuav ntawm cov hmoov txiv tsawb feem ntau muaj ntau kauj ruam: kev kho ua ntej, kev khov ua ntej, kev ziab sublimation, kev ziab desorption, thiab kev ntim khoom. Kev kho ua ntej suav nrog kev tev tawv, txiav, thiab pulping txiv tsawb kom yooj yim rau kev ziab tom qab. Kev khov ua ntej suav nrog kev khov cov txiv tsawb pulp rau qhov kub tshwj xeeb los tsim ib qho sublimation interface ruaj khov thaum lub sijhawm ziab sublimation. Kev ziab sublimation suav nrog kev ua kom cov txiv tsawb pulp khov hauv qab qhov chaw nqus tsev kom tshem tawm cov dej noo los ntawm sublimation. Kev ziab desorption ntxiv tshem tawm cov dej noo seem kom ua tiav qhov qhuav xav tau. Thaum kawg, cov hmoov txiv tsawb ntim tau npaj rau kev ua lag luam.
Yuav tsum tswj xyuas ob peb yam tseem ceeb thaum lub sijhawm ua kom khov kom qhuav kom paub tseeb tias cov khoom zoo. Ua ntej,cov khoom tuabVim tias cov txiv tsawb pulp muaj viscous heev, yuav tsum tau tswj kom tuab sib npaug thaum lub sijhawm tsim khoom kom tiv thaiv cov teeb meem xws li interlayers lossis ziab tsis tiav. Qhov thib ob,Kub thaum lub sijhawm sublimation: Kev sim qhia tau tias lub sijhawm ziab txo qis thaum qhov kub ntawm lub txee nce ntxiv hauv qhov ntau thiab tsawg tsim nyog (≤20 ° C). Txawm li cas los xij, kev cua sov ntau dhau nyob rau hauv kev ua haujlwm siab yuav ua rau cov khoom yaj, ua rau muaj kev txwv kub. Thaum kawg,siab sublimation: Lub zog ua haujlwm feem ntau cuam tshuam rau cua sov thiab kev hloov pauv loj. Cov kev tshawb fawb qhia tau tias lub zog zoo tshaj plaws (kwv yees li 40Pa) uas txo lub sijhawm ziab.
Tus kab nkhaus khov-qhuav ua haujlwm ua tus qhia tseem ceeb ntawm cov txheej txheem ziab. Los ntawm kev tshuaj xyuas cov kab nkhaus nyob rau hauv ntau yam xwm txheej, cov txheej txheem tsis sib xws tuaj yeem ua kom zoo dua. Piv txwv li, nyob rau hauv cov xwm txheej zoo tshaj plaws (8 hli tuab, 20 ° C cua sov, 40 Pa siab), tus kab nkhaus khov-qhuav qhia txog cov theem sublimation thiab desorption ruaj khov, lub sijhawm ziab luv dua, thiab cov khoom zoo dua.
Cov tshuab ziab khov qhia tau tias muaj txiaj ntsig zoo thiab muaj kev siv dav hauv kev tsim cov hmoov txiv tsawb. Los ntawm kev tswj hwm cov yam ntxwv tseem ceeb thiab ua kom cov txheej txheem zoo dua, ob qho tib si zoo ntawm cov khoom thiab kev ua haujlwm ntau lawm tuaj yeem txhim kho. Niaj hnub no, thaum cov qauv zoo ntawm cov khoom noj nce siab, BOTH ntau yam ntawm cov tshuab ziab khov - tsim los rau cov kev xav tau zoo - tau txais kev siv dav.Txais tos nugkom paub meej ntxiv.
Lub sijhawm tshaj tawm: Lub Peb Hlis-11-2025
