Nrog rau cov kev xav tau siab dua thiab siab dua rau kev ua kom zoo ntawm cov ntaub ntawv, kev siv cov xuab zeb zeb tau dhau los ua ntau dua, thiab muaj kev sib tsoo ntau dua hauv kev ua lag luam. Yuav ua li cas xaiv qhov sib tsoo nruab nrab tsim nyog rau nws tus kheej cov txheej txheem ntau lawm thiab cov xwm txheej yog qhov tseem ceeb thiab ua haujlwm hnyav. Ntawm no yog ib qho yooj yim tsom xam ntawm cov nram qab no yam.
1. Tshuaj muaj pes tsawg leeg
Kev sib tsoo xov xwm tuaj yeem muab faib ua iav hlaws, hlaws ceramic (xws li zirconium silicate hlaws, alumina hlaws, tsis tshua muaj lub ntiaj teb hlau stabilized zirconia hlaws, thiab lwm yam) thiab cov hlaws hlau raws li cov khoom sib txawv. Qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg thiab cov txheej txheem tsim khoom txiav txim siab cov qauv siv lead ua ntawm cov hlaws sib tsoo. Cov qauv siv lead ua ntom ntom ua kom lub zog siab, siab hnav tsis kam thiab qis tus lej nqus ntawm cov hlaws. Qhov feem pua ntawm cov ntsiab lus sib txawv ntawm cov khoom sib txawv txiav txim siab qhov tshwj xeeb ntawm kev sib tsoo cov hlaws dai, thiab qhov tshwj xeeb gravity ua kom muaj kev sib tsoo siab; Cov tshuaj muaj pes tsawg leeg ntawm cov hlaws sib tsoo thiab lub ntuj hnav thaum lub sij hawm sib tsoo yuav muaj qee yam cuam tshuam rau kev ua haujlwm ntawm slurry. Yog li ntawd, ntxiv rau kev txiav txim siab tus nqi qis qis, cov tshuaj lom neeg yuav tsum tau kuaj xyuas yuav tsum tau txiav txim siab. Piv txwv li, kev sib tsoo cov ntaub nplaum los yog lwm yam khoom siv hluav taws xob slurry, hlau cov ntsiab lus xws li Fe thiab Cu yuav tsum raug zam, thiab kev sib tsoo hlaws uas muaj Fe2O3 lossis CuSO4 tsis suav nrog hauv kev xaiv, yog li kev xaiv ntawm zirconium hlaws feem ntau yog ib qho kev xaiv hauv qhov no. kev lag luam; Xws li kev sib tsoo cov tshuaj tua kab, tshuaj thiab biochemistry, cov hlau hnyav yog cov ntsiab lus taboo, thiab PbO yog cov khoom siv feem ntau. Nyob rau hauv luv luv, qee lub cev muaj zog (hardness, ntom, hnav tsis kam) txiav txim siab los ntawm cov tshuaj muaj pes tsawg leeg ntawm cov hlaws dai thiab cov pa phem ntawm lawv tus kheej coj mus rau slurry yog qhov tseem ceeb uas yuav tsum tau xav txog hauv kev xaiv ntawm kev sib tsoo nruab nrab.
2 、 Lub cev muaj zog:
1. Ceev ceev
Qhov ceev yog qhia los ntawm lub ntiajteb txawj nqus tshwj xeeb (qhov tseeb lub ntiajteb txawj nqus) thiab qhov hnyav hnyav (qhov tsis tseeb qhov tseeb) hauv cov ntaub ntawv ib txwm muaj. Qhov hnyav molecular thiab feem pua ntawm ntau cov oxides txiav txim siab qhov sib tsoo. Qhov ceev ntawm cov xov xwm sib tsoo yog qhia hauv Table 1. Feem ntau, qhov loj dua qhov tshwj xeeb ntawm cov hlaws sib tsoo, qhov loj dua qhov kev sib tsoo, thiab qhov sib tsoo ntau dua, thaum hnav ntawm qhov sib cuag ntawm cov xuab zeb zeb (lub tog raj kheej sab hauv. , dispersion phaj, thiab lwm yam) yog qhov loj, yog li qhov sib txuam ntawm slurry viscosity thiab ntws los ua tus yuam sij. Tsawg ceev sib tsoo hlaws yog tsim rau cov viscosity slurry tsawg, thiab siab ceev sib tsoo hlaws yog tsim rau siab viscosity slurry.
2. Particle loj
Qhov loj ntawm kev sib tsoo hlaws txiav txiav cov naj npawb ntawm cov ntsiab lus ntawm kev sib tsoo hlaws thiab cov khoom siv. Cov ntsiab lus sib cuag ntau dua ntawm cov hlaws nrog me me particle loj nyob rau hauv tib lub ntim, ntau dua qhov kev sib tsoo ntawm txoj kev xav; Ntawm qhov tod tes, thaum sib tsoo cov ntaub ntawv nrog qhov loj me me, piv txwv li, rau 100 micron slurry, hlaws nrog d=1mm tsis tas siv vim tias lub zog ntawm cov hlaws me me tsis tuaj yeem ncav cuag lub zog ntawm kev sib tsoo tag nrho. Lub sijhawm no, cov hlaws dai nrog cov khoom loj dua yuav tsum tau siv.
3. Hardness
Mohs thiab Vickers feem ntau siv cov ntsuas. Qhov siab dua qhov hardness ntawm kev sib tsoo hlaws, qhov qis hnav ntawm cov hlaws tsis txhais tau tias. Piv txwv li, los ntawm kev sib tsoo cov hlaws dai ntawm qhov chaw sib cuag ntawm cov xuab zeb zeb (dispersion phaj, pas nrig pin thiab puab lub tog raj kheej, thiab lwm yam), cov hlaws sib tsoo nrog cov tawv tawv muaj ntau dua hnav ntawm qhov chaw sib cuag, tab sis qhov zoo tshaj plaws optimization point. tuaj yeem ua tiav los ntawm kev kho qhov ntim ntawm cov hlaws dai, viscosity, ntws thiab lwm yam ntawm slurry.
