Pakatikati pa matailosi onyezimira ndi glaze, yomwe ndi khungu losanjikiza pa matailosi, lomwe limakhala ndi zotsatira za kutembenuza miyala kukhala golide, kupatsa amisiri a ceramic mwayi wopanga mawonekedwe owoneka bwino pamtunda. Popanga matailosi onyezimira, ntchito yokhazikika ya glaze slurry iyenera kutsatiridwa, kuti mupeze zokolola zambiri komanso zabwino. Zizindikiro zazikulu za ntchito yake zimaphatikizanso kukhuthala, fluidity, kubalalitsidwa, kuyimitsidwa, kulumikizana kwa thupi ndi kusalala. Pakupanga kwenikweni, timakumana ndi zomwe tikufuna kupanga posintha mawonekedwe a zopangira za ceramic ndikuwonjezera othandizira othandizira, ofunikira kwambiri omwe ali: CMC carboxymethyl cellulose ndi dongo kuti asinthe kukhuthala, kuthamanga kwa kusonkhanitsa madzi ndi fluidity, zomwe CMC ilinso nayo. mphamvu ya decondensing. Sodium tripolyphosphate ndi madzi degumming agent PC67 ali ndi ntchito yobalalitsa ndi decondensing, ndi kuteteza ndi kupha mabakiteriya ndi tizilombo kuteteza methyl cellulose. Pa nthawi yaitali yosungirako glaze slurry, ndi ayoni mu glaze slurry ndi madzi kapena methyl mawonekedwe insoluble zinthu ndi thixotropy, ndi methyl gulu mu glaze slurry amalephera ndi otaya mlingo amachepetsa. Nkhaniyi ikufotokoza za momwe mungatalikitsire methyl Nthawi yabwino yokhazikitsira magwiridwe antchito a glaze slurry imakhudzidwa makamaka ndi methyl CMC, kuchuluka kwa madzi omwe amalowa mu mpira, kuchuluka kwa kaolin otsuka mu chilinganizo, njira yopangira, ndi kukhazikika.
1. Zotsatira za gulu la methyl (CMC) pazinthu za glaze slurry
Carboxymethyl cellulose CMCndi polyanionic pawiri yokhala ndi madzi abwino osungunuka omwe amapezeka pambuyo posintha mankhwala a ulusi wachilengedwe (alkali cellulose ndi etherification agent chloroacetic acid), komanso ndi polima organic. Gwiritsani ntchito kwambiri mphamvu zake zomangirira, kusunga madzi, kuyimitsidwa kubalalitsidwa, ndi kutsitsa kuti glaze ikhale yosalala komanso yowundana. Pali zofunika zosiyanasiyana kwa mamasukidwe akayendedwe a CMC, ndipo anawagawa mkulu, sing'anga, otsika, ndi kopitilira muyeso-otsika kukhuthala. Magulu a methyl apamwamba komanso otsika amapezedwa makamaka powongolera kuwonongeka kwa cellulose-ndiko kuti, kusweka kwa unyolo wa cellulose. Chofunikira kwambiri chimayamba chifukwa cha mpweya womwe uli mumlengalenga. The zofunika anachita zinthu pokonzekera mkulu mamasukidwe akayendedwe CMC ndi mpweya chotchinga, nayitrogeni flushing, kuzirala ndi kuzizira, kuwonjezera wothandizila mtanda ndi dispersant. Malinga ndi kuwunika kwa Scheme 1, Scheme 2, ndi Scheme 3, zitha kupezeka kuti ngakhale mamasukidwe akayendedwe a low-viscosity methyl gulu ndi otsika kuposa a high-viscosity methyl gulu, kukhazikika kwa magwiridwe antchito a glaze slurry ndi. bwino kuposa gulu la high-viscosity methyl. Pankhani ya boma, gulu la methyl low-viscosity ndi oxidized kwambiri kuposa gulu la methyl high-viscosity ndipo lili ndi unyolo wamfupi wamfupi. Malinga ndi lingaliro la kuwonjezeka kwa entropy, ndi dziko lokhazikika kuposa gulu lapamwamba la viscosity methyl. Choncho, pofuna kutsata kukhazikika kwa ndondomekoyi, mungayesere Kuonjezera kuchuluka kwa magulu a methyl otsika-makamaka, ndiyeno mugwiritse ntchito ma CMC awiri kuti mukhazikitse mlingo wothamanga, kupewa kusinthasintha kwakukulu pakupanga chifukwa cha kusakhazikika kwa CMC imodzi.
2. Zotsatira za kuchuluka kwa madzi omwe amalowa mu mpira pakuchita kwa glaze slurry
Madzi mu mawonekedwe a glaze ndi osiyana chifukwa cha njira zosiyanasiyana. Malinga ndi mitundu yosiyanasiyana ya 38-45 magalamu a madzi omwe amawonjezeredwa ku 100 magalamu a zinthu zouma, madzi amatha kupaka tinthu tating'onoting'ono tating'onoting'ono ndikuthandizira kugaya, komanso kuchepetsa thixotropy wa glaze slurry. Pambuyo poyang'ana Scheme 3 ndi Scheme 9, titha kupeza kuti ngakhale kuti kuthamanga kwa gulu la methyl sikungakhudzidwe ndi kuchuluka kwa madzi, yemwe ali ndi madzi ochepa ndi osavuta kusunga komanso sakhala ndi mvula panthawi yogwiritsira ntchito ndi kusunga. Choncho, pakupanga kwathu kwenikweni, kuthamanga kwa magazi kungathe kuyendetsedwa mwa kuchepetsa kuchuluka kwa madzi omwe amalowa mu mpira. Pakupopera mbewu kwa glaze, mphamvu yokoka yapamwamba komanso kutulutsa kwachangu kumatha kukhazikitsidwa, koma tikayang'anizana ndi glaze yopopera, tifunika kuwonjezera kuchuluka kwa methyl ndi madzi moyenera. Kukhuthala kwa glaze kumagwiritsidwa ntchito kuonetsetsa kuti glaze pamwamba ndi yosalala popanda ufa pambuyo kupopera glaze.
3. Zotsatira za Kaolin Content pa Glaze Slurry Properties
Kaolin ndi mchere wamba. Zigawo zake zazikulu ndi mchere wa kaolinite ndi pang'ono montmorillonite, mica, chlorite, feldspar, ndi zina zotero. Nthawi zambiri amagwiritsidwa ntchito ngati wothandizira woyimitsa zinthu komanso kukhazikitsidwa kwa alumina mu glazes. Kutengera ndi glazing, imasinthasintha pakati pa 7-15%. Poyerekeza chiwembu 3 ndi chiwembu 4, titha kupeza kuti ndi kuchuluka kwa kaolin, kuchuluka kwa glaze slurry kumawonjezeka ndipo sikophweka kukhazikika. Izi ndichifukwa choti kukhuthala kwake kumagwirizana ndi kapangidwe ka mchere, kukula kwa tinthu ndi mtundu wa cation m'matope. Nthawi zambiri, montmorillonite yochuluka kwambiri, tinthu tating'onoting'ono tating'onoting'ono, timakhala tapamwamba kwambiri, ndipo sizingalephereke chifukwa cha kukokoloka kwa bakiteriya, choncho n'zovuta kusintha pakapita nthawi. Choncho, kwa glazes amene ayenera kusungidwa kwa nthawi yaitali, tiyenera kuwonjezera zili kaolin.
4. Zotsatira za nthawi yopera
Kuphwanya kwa mpira mphero kumayambitsa kuwonongeka kwamakina, kutentha, hydrolysis ndi kuwonongeka kwina kwa CMC. Poyerekeza chiwembu 3, chiwembu 5 ndi chiwembu 7, titha kuzindikira kuti ngakhale kukhuthala koyambirira kwa chiwembu 5 kumakhala kotsika chifukwa cha kuwonongeka kwakukulu kwa gulu la methyl chifukwa cha nthawi yayitali yopera mpira, kuwongolera kumachepa chifukwa cha zida. monga kaolin ndi talc (kuwongolera bwino, mphamvu ya ionic Yamphamvu, kukhuthala kwapamwamba) ndikosavuta kusunga kwa nthawi yayitali komanso kosavuta kugwa. Ngakhale chowonjezeracho chikuwonjezeredwa panthawi yomaliza mu ndondomeko ya 7, ngakhale kukhuthala kumakwera kwambiri, kulephera kumakhalanso mofulumira. Izi ndichifukwa choti unyolo wa mamolekyu utalikirapo, ndikosavuta kupeza gulu la methyl Oxygen limataya magwiridwe ake. Komanso, chifukwa mpira mphero Mwachangu ndi otsika chifukwa si anawonjezera pamaso pa trimerization, ndi fineness wa slurry ndi mkulu ndi mphamvu pakati pa kaolin particles ndi ofooka, kotero glaze slurry chimakhazikika mofulumira.
5. Zotsatira za zoteteza
Poyerekeza Experiment 3 ndi Experiment 6, glaze slurry yowonjezeredwa ndi zotetezera zimatha kusunga mamasukidwe akayendedwe popanda kutsika kwa nthawi yayitali. Izi ndichifukwa choti zopangira zazikulu za CMC ndi thonje woyengedwa, womwe ndi organic polima pawiri, ndipo kapangidwe kake ka glycosidic chomangira chimakhala champhamvu pansi pakuchita kwa michere yachilengedwe Yosavuta kuyimitsa, unyolo wa macromolecular wa CMC udzasweka mosasinthika kupanga shuga. mamolekyu mmodzimmodzi. Amapereka gwero lamphamvu la tizilombo toyambitsa matenda ndipo amalola mabakiteriya kuberekana mofulumira. CMC itha kugwiritsidwa ntchito ngati kuyimitsidwa kokhazikika kutengera kulemera kwake kwa mamolekyulu, kotero ikasinthidwa kukhala biodegraded, kukhuthala kwake koyambirira kumasokonekera. Limagwirira wa zochita za zoteteza kulamulira kupulumuka kwa tizilombo makamaka anasonyeza mbali inactivation. Choyamba, zimasokoneza ma enzymes a tizilombo, zimawononga kagayidwe kawo, ndikulepheretsa ntchito ya michere; chachiwiri, izo coagulates ndi denatures tizilombo ting'onoting'ono mapuloteni, kusokoneza awo kupulumuka ndi kuberekana; chachitatu, permeability wa plasma nembanemba amalepheretsa kuchotsa ndi kagayidwe ka enzyme mu zinthu thupi, chifukwa inactivation ndi kusintha. Pogwiritsira ntchito zotetezera, tidzapeza kuti zotsatira zake zidzafooka pakapita nthawi. Kuphatikiza pa chikoka cha khalidwe la mankhwala, tiyeneranso kuganizira chifukwa chomwe mabakiteriya ayamba kukana zotetezera kwa nthawi yaitali kudzera mukuswana ndi kuyesa. , kotero pakupanga kwenikweni tiyenera kusintha mitundu yosiyanasiyana ya zoteteza kwa nthawi.
6. Mphamvu ya kusungidwa kosindikizidwa kwa glaze slurry
Pali magwero awiri akulu akulephera kwa CMC. Chimodzi ndi makutidwe ndi okosijeni omwe amayamba chifukwa chokhudzana ndi mpweya, ndipo china ndi kukokoloka kwa bakiteriya komwe kumachitika chifukwa chokhudzidwa. The fluidity ndi kuyimitsidwa kwa mkaka ndi zakumwa zomwe titha kuziwona m'miyoyo yathu zimakhazikikanso ndi trimerization ndi CMC. Nthawi zambiri amakhala ndi alumali moyo wa chaka chimodzi, ndipo choyipa kwambiri ndi miyezi 3-6. Chifukwa chachikulu ndikugwiritsa ntchito inctivation Sterilization ndi ukadaulo wotsekedwa wosungirako, zimaganiziridwa kuti glaze iyenera kusindikizidwa ndikusungidwa. Kupyolera mu kuyerekezera Scheme 8 ndi Scheme 9, titha kupeza kuti glaze yosungidwa mu malo osungira mpweya imatha kukhala yokhazikika kwa nthawi yayitali popanda mvula. Ngakhale kuti kuyezako kumapangitsa kuti pakhale mpweya, sichimakwaniritsa zoyembekeza, komabe imakhala ndi nthawi yayitali yosungira. Izi zili choncho chifukwa kudzera mu glaze yomwe imasungidwa m'thumba lomata imalekanitsa kukokoloka kwa mpweya ndi mabakiteriya ndikutalikitsa moyo wa alumali wa methyl.
7. Zotsatira za kusakhazikika pa CMC
Staleness ndi njira yofunika kwambiri popanga glaze. Ntchito yake yayikulu ndikupangitsa kuti ikhale yofananira, kuchotsa mpweya wochulukirapo ndikuwola zinthu zina zamoyo, kuti glaze ikhale yosalala mukamagwiritsa ntchito popanda ma pinholes, concave glaze ndi zolakwika zina. Ulusi wa polima wa CMC womwe unawonongedwa panthawi ya mphero ya mpira umalumikizidwanso ndipo kuthamanga kumawonjezeka. Choncho, m'pofunika stale kwa nthawi ndithu, koma nthawi yaitali staleness kungachititse kuti tizilombo tating'onoting'ono kubalana ndi CMC kulephera, chifukwa cha kuchepa kwa otaya mlingo ndi kuwonjezeka mpweya, kotero tiyenera kupeza bwino mawu. nthawi, zambiri 48-72 maola, etc. Ndi bwino ntchito glaze slurry . Pakupanga kwenikweni kwa fakitale inayake, chifukwa kugwiritsa ntchito glaze kumakhala kochepa, tsamba loyendetsa limayang'aniridwa ndi kompyuta, ndipo kusungidwa kwa glaze kumakulitsidwa kwa mphindi 30. Mfundo yaikulu ndi kufooketsa hydrolysis chifukwa CMC yoyambitsa ndi kutentha ndi kutentha kukwera Tizilombo ting'onoting'ono kuchulukana, potero kutalikitsa kupezeka kwa methyl magulu.
Nthawi yotumiza: Jan-04-2023