Nheyo yematairi akapenya ndeye glaze, inova ganda reganda pamatairi, iro rine mhedzisiro yekushandura matombo kuita goridhe, zvichipa mhizha dze ceramic mukana wekuita mapatani akajeka pamusoro. Mukugadzira mataira akapenya, yakagadzikana glaze slurry process performance inofanirwa kuteverwa, kuitira kuti uwane goho repamusoro uye mhando. Zviratidzo zvikuru zvekushanda kwayo zvinosanganisira viscosity, fluidity, dispersion, kumiswa, body-glaze bonding uye kutsetseka. Mukugadzirwa chaiko, tinosangana nezvido zvedu zvekugadzira nekugadzirisa manyorerwo eceramic raw materials uye kuwedzera makemikari ebetsero, ayo anonyanya kukosha ndeaya: CMC carboxymethyl cellulose uye ivhu kugadzirisa viscosity, kumhanya kwekuunganidza mvura uye fluidity, pakati payo CMC inewo. a decondensing effect. Sodium tripolyphosphate uye liquid degumming agent PC67 ine mabasa ekuparadzira uye decondensing, uye inochengetedza ndeyekuuraya mabhakitiriya uye tupukanana kudzivirira methyl cellulose. Munguva yekuchengetwa kwenguva refu kwe glaze slurry, ion mu glaze slurry uye mvura kana methyl inoumba insoluble zvinhu uye thixotropy, uye boka re methyl mu glaze slurry rinokundikana uye kuyerera kunoderera. Ichi chinyorwa chinonyanya kukurukura nzira yekurebesa methyl Nguva inobudirira yekudzikamisa kushanda kwe glaze slurry process inonyanya kukanganiswa nemethyl CMC, huwandu hwemvura inopinda mubhora, huwandu hwekaolin yakashambidzwa muchimiro, maitiro ekugadzirisa, uye. staleness.
1. Mhedzisiro yemethyl group (CMC) pane zvinhu zve glaze slurry
Carboxymethyl cellulose CMCis a polyanionic compound ine yakanaka yekunyungudika kwemvura inowanikwa mushure mekugadziriswa kwekemikari yemafiber echisikigo (alkali cellulose uye etherification agent chloroacetic acid), uye zvakare iri organic polymer. Kunyanya shandisa zvimiro zvayo zvekubatanidza, kuchengetedza mvura, kumiswa kupararira, uye decondensation kuita kuti glaze iite seyakatsetseka uye yakaoma. Pane zvakasiyana zvinodiwa kuti viscosity yeCMC, uye yakakamurwa kuva yakakwirira, yepakati, yakaderera, uye yekupedzisira-yakaderera viscosities. Yakakwirira uye yakaderera-viscosity methyl mapoka anonyanya kuwanikwa nekugadzirisa kuderedzwa kweselulosi-kureva, kutyora kweselulosi molecular cheni. Chinonyanya kukosha chinokonzerwa neokisijeni mumhepo. Mamiriro ekuita akakosha ekugadzirira yakakwira-viscosity CMC iokisijeni barriers, nitrogen flushing, kutonhora uye kutonhora, kuwedzera muchinjiko-inobatanidza mumiriri uye dispersant. Zvinoenderana nekutarisa kweScheme 1, Scheme 2, uye Scheme 3, zvinogona kuwanikwa kuti kunyangwe viscosity yeyakaderera-viscosity methyl boka yakaderera pane iyo yepamusoro-viscosity methyl boka, kugadzikana kwekuita kwe glaze slurry ndiko. zviri nani pane iyo yepamusoro-viscosity methyl boka. Panyaya yehurumende, iyo yakaderera-viscosity methyl boka rinowedzera oxidized kupfuura iyo yepamusoro-viscosity methyl boka uye ine ipfupi molecular cheni. Zvinoenderana nepfungwa yekuwedzera entropy, inzvimbo yakagadzikana kupfuura iyo yepamusoro-viscosity methyl boka. Naizvozvo, kuti uteedzere kugadzikana kweiyo formula, unogona kuedza Kuwedzera huwandu hweyakaderera-viscosity methyl mapoka, uye wozoshandisa maCMC maviri kudzikamisa chiyero chekuyerera, kudzivirira kushanduka kukuru kwekugadzira nekuda kwekusagadzikana kweCMC imwechete.
2. Mhedzisiro yehuwandu hwemvura inopinda mubhora pakushanda kwe glaze slurry
Mvura mune glaze formula yakasiyana nekuda kwemaitiro akasiyana. Zvinoenderana nehuwandu hwe 38-45 magiramu emvura akawedzerwa kune 100 magiramu ezvakaoma zvinhu, mvura inogona kuisa slurry zvimedu uye kubatsira kukuya, uye zvakare inogona kuderedza iyo thixotropy ye glaze slurry. Mushure mekucherechedza Scheme 3 uye Scheme 9, tinogona kuona kuti kunyange zvazvo kukurumidza kweboka remethyl kukundikana hakuzokanganiswi nehuwandu hwemvura, iyo ine mvura shoma iri nyore kuchengetedza uye isinganyanyi kunaya panguva yekushandiswa nekuchengetedza. Nokudaro, mukugadzirwa kwedu chaiko, chiyero chekuyerera chinogona kudzorwa nekudzikisa huwandu hwemvura inopinda mubhora. Kune iyo glaze yekupfapfaidza maitiro, yakakwirira chaiyo giravhiti uye yakakwirira yekuyerera mwero kugadzirwa inogona kugamuchirwa, asi kana takatarisana nespray glaze, isu tinofanirwa kuwedzera huwandu hwemethyl nemvura zvakakodzera. Iyo viscosity ye glaze inoshandiswa kuve nechokwadi chekuti glaze pamusoro inotsvedzerera pasina hupfu mushure mekupfapfaidza glaze.
3. Mhedzisiro yeKaolin Content paGlaze Slurry Properties
Kaolin inowanzoita chicherwa. Zvikamu zvaro zvikuru ndezvicherwa zvekaolinite uye zvishoma zve montmorillonite, mica, chlorite, feldspar, etc. Inowanzoshandiswa sechinhu chisingaiti chekusimudza uye kuiswa kwealumina mune glazes. Zvichienderana nemaitiro ekupenya, inoshanduka pakati pe7-15%. Nokuenzanisa chirongwa 3 nechirongwa 4, tinogona kuona kuti nekuwedzera kwekaolin content, kuyerera kwe glaze slurry kunowedzera uye hazvisi nyore kugadzirisa. Izvi zvinodaro nekuti iyo viscosity ine hukama neiyo mineral kuumbwa, particle size uye cation mhando mumatope. Kazhinji kutaura, iyo yakawanda montmorillonite yemukati, iyo yakatsetseka iyo zvidimbu, iyo yakakwirira viscosity, uye haizokundikane nekuda kwekukukurwa kwebhakitiriya, saka hazvisi nyore kuchinja nekufamba kwenguva. Nokudaro, kune mazhenje anoda kuchengetwa kwenguva yakareba, tinofanira kuwedzera zvinyorwa zve kaolin.
4. Mhedzisiro yenguva yekugaya
Iyo yekupwanya maitiro ebhora mill inokonzeresa kukuvara kwemuchina, kudziyisa, hydrolysis uye kumwe kukuvadza kuCMC. Kuburikidza nekuenzanisa kwechirongwa che3, chirongwa che5 uye chirongwa che7, tinogona kuwana izvo kunyange zvazvo viscosity yekutanga yechirongwa che5 yakaderera nekuda kwekukuvadza kwakanyanya kweboka remethyl nekuda kwenguva refu yekugadzira bhora, kunaka kunoderedzwa nekuda kwezvinhu. senge kaolin uye talc (yakanyanya kunaka, iyo Yakasimba ionic simba, yakakwirira viscosity) iri nyore kuchengeta kwenguva yakareba uye haisi nyore kunaya. Kunyange zvazvo kuwedzera kwakawedzerwa panguva yekupedzisira muurongwa hwe7, kunyange zvazvo viscosity ichikwira yakakura, kukundikana kunokurumidzawo. Izvi zvinodaro nekuti iyo yakareba iyo molecular cheni, zviri nyore kuwana iyo methyl boka Oxygen inorasikirwa nekuita kwayo. Mukuwedzera, nokuti bhora rekugadzira bhora rakaderera nokuti harina kuwedzerwa kusati kwaita trimerization, kunaka kweslurry kwakakwirira uye simba pakati pekaolin particles harina simba, saka glaze slurry inogadzirisa nokukurumidza.
5. Mhedzisiro yezvichengetedza
Nekuenzanisa Kuedza 3 neKuedza 6, glaze slurry yakawedzerwa neinochengetedza inogona kuchengetedza viscosity isingadzike kwenguva yakareba. Izvi zvinodaro nekuti iyo main raw material yeCMC idonje rakanatswa, rinova organic polymer compound, uye glycosidic bond chimiro chakasimba pasi pechiito chebiological enzymes Zviri Nyore kuita hydrolyze, iyo macromolecular chain yeCMC ichave yakatyoka zvisingachinjike kuita glucose. mamorekuru rimwe nerimwe. Inopa sosi yesimba kune tupukanana uye inobvumira mabhakitiriya kuberekana nekukurumidza. CMC inogona kushandiswa seyakamisa kudzikamisa zvichienderana nehuremu hwayo hombe hwemamorekuru, saka mushure meiyo biodegraded, yayo yepakutanga yekukora yemuviri mhedzisiro inonyangarika. Iyo nzira yekuita kwezvidziviriro zvekuchengetedza hupenyu hwehutachiona hunonyanya kuratidzwa muchikamu chekusashanda. Kutanga, inokanganisa ma enzymes ehutachiona, inoparadza yavo yakajairika metabolism, uye inhibisa basa rema enzymes; chechipiri, inobatana uye inobvisa microbial mapuroteni, ichikanganisa kurarama kwavo uye kubereka; chechitatu, kupera kwe plasma membrane inodzivisa kubviswa uye metabolism ye enzymes muzvinhu zvemuviri, zvichiita kuti inactivation uye kuchinja. Mukuita kwekushandisa zvinodzivirira, tinozoona kuti mhedzisiro yacho inopera nekufamba kwenguva. Pamusoro pekupesvedzera kwemhando yechigadzirwa, isu tinofanirwawo kufunga nezve chikonzero nei mabhakitiriya akagadzira kuramba kune-refu-yakawedzerwa kuchengetedza kuburikidza nekubereka uye kuongorora. , saka mumagadzirirwo chaiwo ekugadzira tinofanira kutsiva marudzi akasiyana-siyana ekuchengetedza kwenguva.
6. Kufuridzirwa kwekuchengetedzwa kwakavharwa kwe glaze slurry
Pane maviri makuru masosi ekutadza kweCMC. Imwe ioxidation inokonzerwa nekusangana nemhepo, uye imwe ndeyekukurwa kwebhakitiriya kunokonzerwa nekufumurwa. Iyo fluidity uye kumiswa kwemukaka uye zvinwiwa zvatinogona kuona muhupenyu hwedu zvakare zvakadzikamiswa ne trimerization uye CMC. Vanowanzova nesherufu yehupenyu hwegore rimwe, uye yakaipisisa ndeye 3-6 mwedzi. Chikonzero chikuru ndechekushandiswa kweinactivation Sterilization uye yakavharwa kuchengetedza tekinoroji, inofungidzirwa kuti glaze inofanira kuvharwa uye kuchengetedzwa. Kuburikidza nekuenzanisa kweChirongwa 8 neChirongwa 9, tinogona kuona kuti glaze yakachengetedzwa munzvimbo isina mhepo inogona kuchengetedza kushanda kwakagadzikana kwenguva yakareba pasina kunaya kwemvura. Kunyange zvazvo kuyerwa kunoguma nekuratidzwa kumhepo, hakusviki zvinotarisirwa, asi ichiri nenguva yakareba yekuchengetedza. Izvi zvinodaro nekuti kuburikidza Iyo glaze yakachengetedzwa mubhegi rakavharwa inoparadzanisa kukukurwa kwemhepo uye mabhakitiriya uye inowedzera hupenyu hwesherufu hwemethyl.
7. Kukanganisa kwekumira paCMC
Staleness inzira yakakosha mukugadzira glaze. Basa rayo guru nderekuita kuti kuumbwa kwaro kuve kwakafanana, kubvisa gasi rakawandisa uye kuora imwe organic matter, kuitira kuti glaze iite zvakanaka panguva yekushandiswa pasina pinholes, concave glaze uye humwe hurema. Iyo CMC polymer fibers yakaparadzwa panguva yekugaya bhora inobatanidzwazve uye chiyero chekuyerera chinowedzerwa. Naizvozvo, zvakafanira kuti stale kweimwe nguva yenguva, asi kwenguva refu staleness kuchaita kuti microbial kuberekana uye CMC kukundikana, zvichiita kuti kuderera kuyerera mwero uye kuwedzera gasi, saka tinofanira kuwana mwero maererano. yenguva, kazhinji maawa 48-72, nezvimwewo Zviri nani kushandisa glaze slurry . Muchigadzirwa chaicho cheimwe fekitari, nokuti kushandiswa kweglaze kushoma, jira rinokurudzira rinodzorwa nekombiyuta, uye kuchengetedzwa kwe glaze kunowedzerwa kwemaminitsi makumi matatu. Nheyo huru ndeyekunetesa iyo hydrolysis inokonzerwa neCMC inokurudzira uye kudziyisa uye tembiricha inokwira Ma Microorganisms anowedzera, nokudaro achirebesa kuwanikwa kwemapoka emethyl.
Nguva yekutumira: Jan-04-2023