CMC imagwiritsa ntchito mu Ceramic Viwanda

Sodium carboxymethyl cellulose, English chidule CMC, ceramic makampani amadziwika kuti ".Sodium CMC", ndi mtundu wa chinthu cha anionic, chopangidwa ndi cellulose yachilengedwe monga zopangira, ndi kusintha kwa mankhwala ndi ufa woyera kapena wopepuka wachikasu. CMC ili ndi kusungunuka kwabwino ndipo imatha kusungunuka kukhala njira yowonekera komanso yofananira m'madzi ozizira komanso otentha.

1. Chidziwitso chachidule cha CMCamagwiritsa mu ceramics

1.1 kugwiritsa ntchito CMC muzoumba

1.1.1. Mfundo yogwiritsira ntchito

CMC ili ndi mawonekedwe apadera a polima. CMC ikawonjezeredwa kumadzi, gulu lake la hydrophilic (-Coona) limaphatikizidwa ndi madzi kuti likhale losanjikiza, lomwe limabalalitsa mamolekyu a CMC m'madzi pang'onopang'ono. Kapangidwe ka netiweki pakati pa ma polima a CMC amapangidwa ndi hydrogen bond ndi mphamvu ya van der Waals, motero akuwonetsa kugwirizana. CMC yodziwika ndi thupi itha kugwiritsidwa ntchito ngati excipient, plasticizer ndi reinforcer of billet in ceramic industry. Kuonjezera kuchuluka koyenera kwa CMC ku billet kumatha kuwonjezera mphamvu yomangirira ya billet, kupanga billet kukhala kosavuta kupanga, kukulitsa mphamvu yosinthika ndi 2 ~ 3 nthawi, ndikuwongolera kukhazikika kwa billet, kuti muwongolere kuchuluka kwa shuga. zoumba, kuchepetsa mtengo wa processing pambuyo pake. Panthawi imodzimodziyo, chifukwa cha kuwonjezera kwa CMC, kuthamanga kwa billet wobiriwira kungathe kuwongolera komanso kupanga mphamvu zamagetsi kungathe kuchepetsedwa, ndipo madzi omwe ali mu billet amatha kusungunuka mofanana kuti ateteze kuyanika ndi kuphulika, makamaka kukula kwakukulu. wa pansi tile billet ndi opukutidwa njerwa billet, zotsatira zake ndi zoonekeratu. Poyerekeza ndi othandizira ena olimbitsa thupi, CMC yokhudzana ndi thupi ili ndi izi:

(1) Mlingo wocheperako: Mlingo nthawi zambiri umakhala wochepera 0.1%, womwe ndi 1/5 ~ 1/3 wa othandizira ena olimbitsa thupi, pomwe mphamvu yopindika ya thupi lobiriwira ikuwonekera ndipo mtengo wake ukhoza kuchepetsedwa.

(2) zabwino kuyaka imfa: pambuyo kuwotcha pafupifupi palibe phulusa, palibe zotsalira, sikukhudza mtundu wobiriwira.

(3) ndi kuyimitsidwa bwino: kuteteza osauka zopangira ndi zamkati mpweya, kuti slurry wogawana omwazika.

(4) Valani kukana: pogaya mpira, unyolo wa maselo suwonongeka pang'ono.

1.1.2. Njira yowonjezera

Kuchuluka kwa CMC mu billet ndi 0,03 ~ 0.3%, yomwe ingasinthidwe malinga ndi zosowa zenizeni. Pakuti slurry ndi zambiri osauka zopangira mu chilinganizo, CMC akhoza kuonjezedwa kwa mpira mphero ndi nthaka pamodzi ndi matope, kulabadira yunifolomu kubalalitsidwa, kuti zisakhale zovuta kupasuka pambuyo agglomeration, kapena CMC akhoza. kukhala predissolved ndi madzi pa 1:30 padera ndiyeno anawonjezera kwa mpira mphero kusakaniza 1 ~ 5 hours pamaso akupera.

1.2. Kugwiritsa ntchito CMC mu glaze slurry

1.2.1 Mfundo yogwiritsira ntchito

Glaze paste wapadera TYPE CMC ndi ntchito bwino stabilizer ndi binder, ntchito ceramic matailosi pansi glaze ndi pamwamba glaze, akhoza kuonjezera kugwirizana mphamvu ya glaze slurry ndi thupi, chifukwa glaze slurry ndikosavuta kwa mvula ndi kusakhazikika bwino, ndi CMC ndi mitundu yonse ya Kugwirizana kwa glaze ndikwabwino, kumakhala ndi kufalikira kwabwino kwambiri komanso chitetezo cha colloid, kotero kuti thupi la glaze liri mumkhalidwe wokhazikika wobalalika. Pambuyo powonjezera CMC, kupsinjika kwapamwamba kwa glaze kumatha kusintha, madzi amatha kupewedwa kuti asapatukane kuchokera ku glaze kupita ku thupi, kusalala kwa glaze kumatha kuonjezedwa, kusweka ndi kusweka kochitika chifukwa cha kugwa kwamphamvu kwa thupi pambuyo pake. Kugwiritsa ntchito glaze kumatha kupewedwa, ndipo mawonekedwe a pinhole a glaze amathanso kuchepetsedwa mukaphika.

1.2.2. Njira yowonjezera

Kuchuluka kwa CMC yowonjezeredwa ku glaze yapansi ndi glaze padziko lapansi kuyambira 0.08 mpaka 0.30%. Ikhoza kusinthidwa malinga ndi zosowa zenizeni. Choyamba, CMC imakonzedwa kukhala 3% yankho lamadzi. Ngati ikufunika kusungidwa kwa masiku angapo, yankho liyenera kuikidwa mu chidebe chopanda mpweya ndi zotetezera zoyenera ndikusungidwa pa kutentha kochepa. Kenaka, yankho limasakanizidwa mofanana ndi glaze.

1.3 Kugwiritsa ntchito CMC pakusindikiza glaze

1.3.1, kusindikiza glaze wapadera CMC ali thickening katundu ndi dispersity ndi bata, ndi CMC wapadera kutengera luso latsopano, solubility wabwino, mandala mkulu, pafupifupi palibe insolubles, komanso ali wapamwamba kukameta ubweya kupatulira ndi kondomu, bwino kwambiri kusindikiza glaze kusindikiza. kusinthasintha, kuchepetsa chinsalu, chotchinga kutsekereza chodabwitsa, kuchepetsa nthawi maukonde, pamene kusindikiza ntchito yosalala, Chotsani chitsanzo, zabwino mtundu kusasinthasintha.

1.3.2 Kuchuluka kwa kuwonjezera kusindikiza glaze ndi 1.5-3%. CMC akhoza ankawaviika ndi ethylene glycol ndiyeno anawonjezera ndi madzi kuti presoluble, kapena 1-5% sodium tripolyphosphate ndi mtundu zipangizo akhoza youma osakaniza pamodzi, ndiyeno kusungunuka ndi madzi, kuti zipangizo zosiyanasiyana akhoza kusungunuka ndi wogawana.

1.4. Kugwiritsa ntchito CMC mu glaze yolowera

1.4.1 Mfundo yogwiritsira ntchito

Kulowa glaze lili zambiri sungunuka mchere, asidi, ndi ena tsankho malowedwe glaze wapadera CMC ali wapamwamba asidi mchere kukana bata, kupanga malowedwe glaze mu ndondomeko ya ntchito ndi masungidwe kusunga khola mamasukidwe akayendedwe, kupewa chifukwa cha kusintha mamasukidwe akayendedwe, mtundu ndi malowedwe glaze wapadera CMC madzi sungunuka, permeability ukonde ndi kasungidwe madzi ndi zabwino kwambiri, kusunga bata la sungunuka mchere glaze ali zambiri thandizo .

1.4.2. Njira yowonjezera

Sungunulani CMC ndi ethylene glycol, madzi ena ndi complectoring wothandizira, ndiye sakanizani bwino ndi kusungunuka mtundu njira.

2.CMC iyenera kutsatiridwa ndi kupanga ceramic

2.1 Mitundu yosiyanasiyana ya CMC imagwira ntchito zosiyanasiyana pakupanga ceramic. Kusankhidwa koyenera kungathe kukwaniritsa cholinga cha chuma ndi mphamvu.

2.2. Mu glaze ndi kusindikiza glaze, si koyenera kuti coopt CMC mankhwala ndi otsika chiyero, makamaka mu glaze kusindikiza, mkulu chiyero CMC ndi chiyero mkulu, asidi wabwino ndi mchere kukana ndi kuwonekera mkulu ayenera kusankhidwa kupewa ripples ndi pinholes pa glaze. Pa nthawi yomweyo, angathenso kuteteza ntchito pulagi ukonde, osauka mlingo ndi mtundu ndi zochitika zina.

2.3 Ngati kutentha kuli kwakukulu kapena glaze iyenera kuikidwa kwa nthawi yaitali, zotetezera ziyenera kuwonjezeredwa.

3. Kuwunika kwazovuta zomwe zimachitika pa CMC pakupanga ceramic

3.1. The fluidity ya matope si bwino ndipo n'kovuta kuika guluu.

Chifukwa cha kukhuthala kwa CMC palokha, kukhuthala kwamatope ndikokwera kwambiri, zomwe zimatsogolera ku zovuta za pulping. Yankho lake ndikusintha kuchuluka ndi mtundu wa coagulant, amalangiza zotsatirazi decoagulant chilinganizo1) sodium tripolyphosphate 0,3%; (2) sodium tripolyphosphate 0.1% + sodium silicate 0.3%; (3) Sodium humate 0.2% + sodium tripolyphosphate 0.1%

3.2. Mafuta a glaze ndi mafuta osindikizira ndi ochepa.

Zifukwa za kusankha phala la glaze ndi mafuta osindikizira ndi awa1) phala la glaze kapena mafuta osindikizira amakokoloka ndi tizilombo toyambitsa matenda, kotero kuti CMC imalephera. Njira yothetsera vutoli ndikutsuka chidebe cha glaze phala kapena mafuta osindikizira bwino, kapena kuwonjezera zotetezera monga formaldehyde ndi phenol. (2) Pansi pa kugwedezeka kosalekeza kwa mphamvu yometa ubweya, kukhuthala kumachepa. Ndikofunikira kusintha njira yamadzimadzi ya CMC.

3.3. Matani mauna mukamagwiritsa ntchito glaze yosindikiza.

Njira yothetsera vutoli ndi kusintha kuchuluka kwa CMC, kotero kuti kusindikiza kwa glaze mamasukidwe apakati, ngati kuli kofunikira, kuwonjezera madzi pang'ono kuti asokoneze mofanana.

3.4, kutsekereza maukonde, pukutani kuchuluka kwa nthawi.

Yankho lake ndikuwongolera kuwonekera komanso kusungunuka kwa CMC. Kusindikiza mafuta kukonzekera akamaliza 120 mauna sieve, kusindikiza mafuta ayeneranso kudutsa 100 ~ 120 mauna sieve; Sinthani kukhuthala kwa glaze yosindikiza.

3.5, kusunga madzi si bwino, pambuyo kusindikiza ufa pamwamba, zimakhudza kusindikiza lotsatira.

Njira yothetsera vutoli ndikuwonjezera kuchuluka kwa glycerin pokonzekera kusindikiza mafuta; Sinthani kumlingo wapamwamba wolowa m'malo (m'malo mwa kufanana kwabwino), kukhuthala kotsika kwa CMC kukonzekera mafuta osindikizira.