Ukufezekisa ukuzinza kweCarboxymethyl Cellulose (CMC) i-glaze slurry ibalulekile ekuqinisekiseni umgangatho ohambelanayo kunye nokusebenza kwiimveliso ze-ceramic. Ukuzinza kulo mongo kuthetha ukugcina ukunqunyanyiswa okufanayo ngaphandle kwamaqhekeza ahlala okanye adibanisa ixesha elide, elinokuthi likhokelela kwiziphene kwimveliso yokugqibela.
Ukuqonda i-CMC kunye nendima yayo kwi-Glaze Slurry
ICarboxymethyl Cellulose (CMC) yipolima enyibilikayo emanzini ephuma kwiselulosi. Ngokuqhelekileyo isetyenziswa kwi-ceramic glazes njenge-binder kunye ne-rheology modifier. I-CMC iphucula i-viscosity ye-glaze, inceda ukugcina ukumiswa okuhambelanayo kwamasuntswana. Ikwaphucula ukuncamathela komkhenkce kumphezulu weceramic kwaye icuthe iziphene ezinje ngemingxuma yokukhasa.
Izinto eziphambili ezichaphazela ukuzinza kweCMC Glaze Slurry
Umgangatho we-CMC kunye nokuQikelela:
Ubunyulu: Ucoceko oluphezulu lwe-CMC kufuneka lusetyenziswe ukunqanda ukungcola okunokuthi kungabikho uzinzo kwi-slurry.
I-Degree of Substitution (DS): I-DS ye-CMC, ebonisa inani eliqhelekileyo lamaqela e-carboxymethyl aqhotyoshelwe kwi-cellulose backbone, ichaphazela ukunyibilika kwayo kunye nokusebenza kwayo. I-DS phakathi kwe-0.7 kunye ne-1.2 ifanelekile kwizicelo ze-ceramic.
Ubunzima beMolekyuli: Ubunzima obuphezulu bemolekyuli ye-CMC ibonelela nge-viscosity engcono kunye neempawu zokumiswa, kodwa kunokuba nzima ukunyibilika. Ukulinganisa ubunzima beemolekyuli kunye nokulula kokuphatha kubalulekile.
Umgangatho waManzi:
i-pH: I-pH yamanzi asetyenziselwa ukulungisa i-slurry kufuneka ingathathi hlangothi kwi-alkaline kancinane (pH 7-8). Amanzi aneasidi okanye ane-alkaline kakhulu anokuchaphazela uzinzo kunye nokusebenza kweCMC.
Umxholo we-Ionic: Amanqanaba aphezulu eetyuwa ezinyibilikisiweyo kunye neeyoni zinokusebenzisana ne-CMC kwaye zichaphazele iipropathi zayo zokujiya. Kudla ngokucetyiswa ukuba kusetyenziswe amanzi adiyoni okanye athambekisiwe.
Indlela yokulungiselela:
Ukupheliswa: I-CMC kufuneka inyibilikiswe ngokufanelekileyo emanzini ngaphambi kokuba yongeze amanye amacandelo. Ukudibanisa okucothayo kunye nokuvuselela ngamandla kunokuthintela ukubunjwa kweqhuma.
Umyalelo wokuxuba: Ukongeza isisombululo se-CMC kwizinto ezixutywe ngaphambili ze-glaze okanye ngokuchaseneyo kunokuchaphazela i-homogeneity kunye nokuzinza. Ngokwesiqhelo, ukunyibilikisa i-CMC kuqala kwaye emva koko ukongeza izixhobo zeglaze kuvelisa iziphumo ezingcono.
Ukuguga: Ukuvumela isisombululo se-CMC ukuba siguge kwiiyure ezimbalwa ngaphambi kokusetyenziswa kunokuphucula ukusebenza kwayo ngokuqinisekisa ukugcwala okupheleleyo kunye nokutshatyalaliswa.
Izongezo kunye nokunxibelelana kwazo:
I-Deflocculants: Ukongeza ixabiso elincinci le-deflocculants njenge-sodium silicate okanye i-sodium carbonate inokunceda ukusabalalisa amaqhekeza ngokulinganayo. Nangona kunjalo, ukusetyenziswa ngokugqithisileyo kunokukhokelela kwi-deflocculation engaphezulu kunye nokunciphisa i-slurry.
Izithinteli: Ukuthintela ukukhula kwemicrobial, okunokuthoba i-CMC, izilondolozo ezifana ne-biocides zinokuba yimfuneko, ngakumbi ukuba udaka lugcinwe ixesha elide.
Ezinye iiPolymers: Ngamanye amaxesha, ezinye iipolymers okanye i-thickeners zisetyenziswa ngokudibeneyo ne-CMC ukulungisa kakuhle irheology kunye nokuzinza kodaka lwe-glaze.
Amanyathelo asebenzayo okuZinzisa iCMC Glaze Slurry
Ukuphucula Ugxininiso lweCMC:
Misela eyona ngxinaniso yeCMC yokwenziwa kweglaze yakho ethile ngovavanyo. Uxinzelelo oluqhelekileyo lusuka kwi-0.2% ukuya kwi-1.0% ngobunzima bomxube owomileyo we-glaze.
Lungisa ngokuthe ngcembe i-CMC yoxinaniso kwaye ujonge i-viscosity kunye neempawu zokunqunyanyiswa ukufumana ibhalansi efanelekileyo.
Ukuqinisekisa ukuxutywa kwe-Homogeneous:
Sebenzisa i-high-chear mixers okanye i-ball Mills ukuqinisekisa ukuxuba ngokucokisekileyo kwe-CMC kunye nezixhobo ze-glaze.
Ngamaxesha athile khangela i-slurry yokufana kwaye ulungelelanise imilinganiselo yokuxuba njengoko kufuneka.
Ukulawula i-pH:
Gcina iliso rhoqo kwaye ulungelelanise i-pH ye-slurry. Ukuba i-pH iyakhukuliseka ngaphandle koluhlu olufunekayo, sebenzisa izithinteli ezifanelekileyo ukugcina uzinzo.
Kuphephe ukongeza izinto ezineasidi okanye ezine-alkaline ngokuthe ngqo kwi-slurry ngaphandle kokuphazamiseka okufanelekileyo.
Ukubeka iliso kunye nokulungelelanisa iViscosity:
Sebenzisa i-viscometers ukujonga rhoqo i-viscosity ye-slurry. Gcina ilog yokufundwa kwe-viscosity ukuchonga iintsingiselo kunye nemiba enokubakho uzinzo.
Ukuba i-viscosity iyatshintsha ngokuhamba kwexesha, lungelelanisa ngokudibanisa amanani amancinci amanzi okanye isisombululo se-CMC njengoko kufuneka.
Ukugcinwa kunye nokuphatha:
Gcina uludaka kwizikhongozeli ezigqunyiweyo nezicocekileyo ukuthintela ukosuleleka kunye nokunyuka kwamanzi abe ngumphunga.
Rhoqo uvuselele i-slurry egciniweyo ukugcina ukumiswa. Sebenzisa izivuseleli zoomatshini ukuba kukho imfuneko.
Kuphephe ukugcinwa ixesha elide kumaqondo obushushu aphezulu okanye kwilanga elithe ngqo, elinokuthoba i-CMC.
Ukusombulula imiba eqhelekileyo
Ukulungisa:
Ukuba amasuntswana ahlala ngokukhawuleza, jonga i-CMC yoxinaniso kwaye uqinisekise ukuba igcwele amanzi ngokupheleleyo.
Cinga ukongeza inani elincinci le-deflocculant ukuphucula i-particle suspension.
IGelation:
Ukuba ijeli eludaka, oko kunokubonisa over-flocculation okanye CMC kakhulu. Lungisa ugxininiso kwaye ujonge umxholo we-ionic wamanzi.
Qinisekisa ulandelelwano oluchanekileyo lokudibanisa kunye neenkqubo zokuxuba.
Ugwebu:
I-Foam ingaba ngumba ngexesha lokuxuba. Sebenzisa i-antifoaming agents ngokukhawuleza ukulawula i-foam ngaphandle kokuchaphazela iipropati ze-glaze.
Ukukhula kweMicrobial:
Ukuba i-slurry ivelisa iphunga okanye itshintshe ukuhambelana, ingaba ngenxa yemisebenzi ye-microbial. Yongeza ii-biocides kwaye uqinisekise ukuba izitya kunye nezixhobo zicocekile.
Ukufezekisa uzinzo lweCMC glaze slurry kubandakanya indibaniselwano yokukhetha izinto ezifanelekileyo, ukulawula inkqubo yokulungiselela, kunye nokugcina ugcino olufanelekileyo kunye nezenzo zokuphatha. Ngokuqonda indima yecandelo ngalinye kunye nokubeka iliso kwiiparameters eziphambili ezifana ne-pH, i-viscosity, kunye nokumiswa kwamasuntswana, unokuvelisa i-slurry ezinzileyo kunye nekhwalithi ephezulu ye-glaze. Ukucombulula iingxaki rhoqo kunye nohlengahlengiso olusekwe ekusebenzeni okuphawulweyo kuya kunceda ukugcina ukuhambelana kunye nomgangatho kwiimveliso ze-ceramic.
Ixesha lokuposa: Jun-04-2024