I-Sodium carboxymethyl cellulose, isifinyezo sesiNgisi i-CMC, esivame ukubizwa ngokuthi "methyl" embonini ye-ceramic, iyinto ye-anionic, impushana emhlophe noma ephuzi kancane eyenziwe nge-cellulose yemvelo njengempahla eluhlaza futhi ishintshwe ngamakhemikhali. . I-CMC inokunyibilika okuhle futhi ingancibilika ibe isixazululo esisobala nesifanayo se-viscous kokubili emanzini abandayo namanzi ashisayo.
1. Isingeniso esifushane sokusetshenziswa kwe-CMC kuma-ceramics
1.1. Ukusetshenziswa kwe-CMC kuma-ceramics
1.1.1, umgomo wokusetshenziswa
I-CMC inesakhiwo se-polymer esiyingqayizivele. Lapho i-CMC yengezwa emanzini, iqembu layo le-hydrophilic (-COONA) lihlangana namanzi ukuze lenze isendlalelo sokuxazulula, ukuze ama-molecule e-CMC ahlakazeke kancane kancane emanzini. Ama-polymer e-CMC ancike kumabhondi e-hydrogen kanye namandla e-van der Waals. Umphumela wakha isakhiwo senethiwekhi, ngaleyo ndlela ubonisa ukuhlangana. I-CMC eqondene nomzimba ethile ingasetshenziswa njenge-excipient, plasticizer, kanye ne-ejenti yokuqinisa imizimba eluhlaza embonini yobumba. Ukwengeza inani elifanele le-CMC ku-billet kungakhuphula amandla ahlangene we-billet, kwenze i-billet ibe lula ukwakha, kwandise amandla okuguquguquka izikhathi ezingu-2 kuya kwezingu-3, futhi kuthuthukise ukuzinza kwe-billet, ngaleyo ndlela kwandise umkhiqizo wekhwalithi ephezulu. izinga lezitsha zobumba kanye nokunciphisa izindleko zangemva kokucubungula. . Ngesikhathi esifanayo, ngenxa yokwengezwa kwe-CMC, ingakhuphula isivinini sokucubungula umzimba oluhlaza futhi inciphise ukusetshenziswa kwamandla okukhiqiza. Kungenza futhi umswakama ku-billet uhwamuke ngokulinganayo futhi uvimbele ukoma nokuqhekeka. Ikakhulukazi uma isetshenziswa kumabhilidi ethayela aphansi ngobukhulu kanye namabhilidi ezitini aphucuziwe, umphumela uba ngcono nakakhulu. sobala. Uma kuqhathaniswa namanye ama-ejenti okuqinisa umzimba aluhlaza, i-CMC ekhethekile yomzimba oluhlaza inezici ezilandelayo:
(1) Inani elincane elingeziwe: inani elingeziwe ngokuvamile lingaphansi kuka-0.1%, okuyi-1/5 kuya ku-1/3 yamanye ama-agent aqinisa umzimba, futhi amandla okuguquguquka komzimba oluhlaza athuthukiswa kakhulu, futhi izindleko zingancishiswa. ngesikhathi esifanayo.
(2) Impahla eshile enhle: cishe awukho umlotha osele ngemva kokushiswa, futhi akukho okusalayo, okungawuthinti umbala wendawo engenalutho.
(3) Impahla elengayo enhle: vimbela izinto ezingavuthiwe kanye nokunamathiswa kombala ekuzinzeni, futhi wenze okunamathiselwe kuhlakazeke ngokulinganayo.
(4) I-Anti-abrasion: Enqubweni yokugaya ibhola, iketanga lamangqamuzana alimala kancane.
1.1.2, indlela yokwengeza
Inani elijwayelekile elingeziwe le-CMC ku-billet ngu-0.03-0.3%, elingalungiswa ngokufanele ngokuya ngezidingo zangempela. Ukuze udaka olunezinto eziningi zokusetshenziswa ezingenalutho kufomula, i-CMC ingangezwa emshinini webhola ukuze ugaye kanye nodaka, unake ukuhlakazeka komfaniswano, ukuze kungabi nzima ukuncibilika ngemva kokuhlanganiswa, noma ngaphambi kokuhlakazeka. ncibilikisa i-CMC namanzi ngesilinganiso esingu-1:30 Yengeze emshinini wokugaya bese uhlanganisa ngokulinganayo amahora angu-1-5 ngaphambi kokugaya.
1.2. Ukusetshenziswa kwe-CMC ku-glaze slurry
1.2.1. Umgomo wohlelo lokusebenza
I-CMC ye-glaze slurry iyisinzisi kanye nesibopho esisebenza kahle kakhulu. Isetshenziswa ekucwebezeleni okungaphansi kanye nasekucwebezeleni okungaphezulu kwamathayela e-ceramic, okungase kukhuphule amandla okubopha phakathi kwe-glaze slurry nomzimba. Ngenxa yokuthi i-glaze slurry kulula ukuyishisa futhi inozinzo oluphansi, i-CMC nokuhlukahluka Ukuhambisana kwalolu hlobo lwe-glaze kuhle, futhi kunokusabalalisa okuhle kakhulu kanye ne-colloid evikelayo, ukuze i-glaze ibe sesimweni sokuhlakazeka esizinzile kakhulu. Ngemuva kokwengeza i-CMC, ukungezwani okungaphezulu kwe-glaze kungandiswa, amanzi angavinjelwa ukuthi angahlukani ukusuka ku-glaze kuye emzimbeni oluhlaza, ukushelela kwendawo ecwebezelayo kungandiswa, kanye nokuqhekeka nokuqhekeka ngesikhathi senqubo yokuthutha okubangelwa ukwehla kwamandla omzimba oluhlaza ngemva kokucwebezela kungagwenywa. , Isimo se-pinhole endaweni ecwebezelayo singancishiswa ngemva kokudubula.
1.2.2. Indlela yokwengeza
Inani le-CMC elingezwe ku-glaze engezansi kanye ne-glaze ephezulu ngokuvamile li-0.08-0.30%, futhi lingalungiswa ngokuvumelana nezidingo zangempela ngesikhathi sokusetshenziswa. Okokuqala yenza i-CMC ibe yisisombululo samanzi esingu-3%. Uma idinga ukugcinwa izinsuku ezimbalwa, lesi sixazululo sidinga ukungezwa ngenani elifanele lama-preservatives futhi sifakwe esitsheni esivalekile, sigcinwe ekushiseni okuphansi, bese sixutshwa ne-glaze ngokulinganayo.
1.3. Ukusetshenziswa kwe-CMC ekuphrinteni i-glaze
1.3.1. I-CMC ekhethekile yokuphrinta i-glaze inokuqina okuhle, i-dispersibility kanye nokuzinza. Le CMC ekhethekile yamukela ubuchwepheshe obusha, inokuncibilika okuhle, ukukhanya okuphezulu, cishe akukho lutho olungancibiliki, futhi inendawo enhle kakhulu yokugunda i-shear Futhi i-lubricity, ithuthukisa kakhulu ukuguquguquka kokuphrinta kwe-glaze yokuphrinta, inciphisa ukwenzeka kokunamathela nokuvimba isikrini, ukunciphisa inombolo. zokusula, ukuphrinta okubushelelezi ngesikhathi sokusebenza, amaphethini acacile, nokuvumelana kombala okuhle.
1.3.2. Isilinganiso esijwayelekile sokwengeza i-glaze yokuphrinta yi-1.5-3%. I-CMC ingangenwa nge-ethylene glycol bese ingeza amanzi ukuze iyenze incibilike ngaphambili. Ingase futhi yengezwe nge-1-5% ye-sodium tripolyphosphate nezinto zokufaka imibala ndawonye. Ingxube eyomile, bese ichitheka ngamanzi, ukuze zonke izinhlobo zezinto zingancibilika ngokugcwele ngokulinganayo.
1.4. Ukusetshenziswa kwe-CMC ku-glaze ecwebezelayo
1.4.1. Umgomo wohlelo lokusebenza
I-bleeding glaze iqukethe usawoti omningi oncibilikayo, kanti amanye awo ane-acidic kancane. Uhlobo olukhethekile lwe-CMC lwe-glaze yokopha lunokuqina okuhle kakhulu kwe-asidi nosawoti, okungagcina i-viscosity ye-glaze esophayo izinzile ngesikhathi sokusetshenziswa nokubekwa, futhi ivimbele ukuthi ingalimazi ngenxa yezinguquko ze-viscosity. Kuthinta umehluko wombala, futhi ukuncibilika kwamanzi, ukungena kwemeshi nokugcinwa kwamanzi kwe-CMC ekhethekile ye-bleed glaze kuhle kakhulu, okuwusizo olukhulu ukugcina ukuzinza kweglaze yokopha.
1.4.2. Engeza indlela
Chaza i-CMC nge-ethylene glycol, ingxenye yamanzi ne-ejenti eyinkimbinkimbi kuqala, bese uxuba nesixazululo esincibilikisiwe sombala.
2. Izinkinga okufanele zinakwe ekukhiqizeni i-CMC kuma-ceramics
2.1. Izinhlobo ezahlukene ze-CMC zinemisebenzi ehlukene ekukhiqizeni izitsha zobumba. Ukukhetha okulungile kungafinyelela inhloso yomnotho nokusebenza kahle okuphezulu.
2.2. Ekucwebezelweni okungaphezulu nokucwebezelisa okuphrinta, akumele usebenzise imikhiqizo ye-CMC ene-low-purity ngemali eshibhile, ikakhulukazi ekucwebezelweni kokuphrinta, kufanele ukhethe i-CMC enobumsulwa obuphakeme, ukumelana ne-asidi enhle nosawoti, nokucaca okuphezulu ukuvimbela ama-glaze Ripples namaphinikhodi. avele ebusweni. Ngesikhathi esifanayo, kungase futhi kuvimbele ukwenzeka kokuxhuma inetha, izinga eliphansi kanye nomehluko wombala ngesikhathi sokusetshenziswa.
2.3. Uma izinga lokushisa liphezulu noma i-glaze slurry idinga ukubekwa isikhathi eside, ama-preservatives kufanele afakwe.
3. Ukuhlaziywa kwezinkinga ezivamile zeI-CMC nge-ceramicukukhiqizwa
3.1. I-fluidity yodaka ayilungile, futhi kunzima ukukhulula ingcina.
Ngenxa ye-viscosity yayo, i-CMC izobangela ukuthi i-viscosity yodaka ibe phezulu kakhulu, okwenza kube nzima ukukhulula udaka. Isixazululo ukulungisa inani kanye nohlobo lwe-coagulant. Ifomula ye-decoagulant elandelayo inconywa: (1) i-sodium tripolyphosphate 0.3%; (2) i-sodium tripolyphosphate 0.1% + ingilazi yamanzi 0.3%; (3) i-humic acid I-Sodium 0.2% + i-sodium tripolyphosphate 0.1%
3.2. I-glaze slurry kanye noyinki wokuphrinta mancane.
Izizathu zokuthi kungani i-glaze slurry kanye noyinki wokuphrinta kuncishiswe kanje: (1) I-glaze slurry noma uyinki wokuphrinta uguguleka ama-microorganisms, okwenza i-CMC ingavumelekile. Isixazululo siwukugeza kahle isitsha se-glaze slurry noma uyinki, noma wengeze izinto ezilondolozayo ezifana ne-formaldehyde ne-phenol. (2) Ngaphansi kokugqugquzela okuqhubekayo ngaphansi kwamandla okugunda, i-viscosity iyancipha. Kunconywa ukwengeza isixazululo samanzi se-CMC ukuze ulungise lapho usebenzisa.
3.3. Namathisela inethi uma usebenzisa i-printing glaze.
Isixazululo ukulungisa inani le-CMC ukuze i-viscosity ye-glaze yokunyathelisa ibe ngokulinganisela, futhi uma kunesidingo, engeza inani elincane lamanzi ukuze ugovuze ngokulinganayo.
3.4. Kunezikhathi eziningi zokuvinjwa nokuhlanza inethiwekhi.
Isixazululo siwukuthuthukisa ukubonakala nokunyibilika kwe-CMC; ngemva kokuba amafutha okunyathelisa elungiselelwe, dlula ngesihlungo se-120-mesh, futhi amafutha okunyathelisa nawo adinga ukudlula ngesihlungo se-100-120-mesh; lungisa i-viscosity ye-glaze yokuphrinta.
3.5. Ukugcinwa kwamanzi akukuhle, futhi ingaphezulu lembali lizochotshozwa ngemva kokuphrinta, okuzothinta ukuphrinta okulandelayo.
Isixazululo ukwandisa inani le-glycerin ohlelweni lokulungiselela amafutha okuphrinta; sebenzisa i-CMC ye-viscosity ephakathi nendawo nephansi eneziqu eziphakeme zokushintsha (ukufaniswa okuhle kokushintsha) ukulungisa uwoyela wokuphrinta.
Isikhathi sokuthumela: Jan-04-2023