CMC e sebelisa indastering ea Ceramic

Sodium carboxymethyl cellulose, khutsufatso ea Senyesemane CMC, indasteri ea ceramic e tsejoa e le "Sodium CMC", ke mofuta oa ntho ea anionic, e entsoeng ka selulose ea tlhaho e le thepa e tala, ka phetoho ea lik'hemik'hale le phofo e tšoeu kapa e bobebe e mosehla. CMC e na le solubility e ntle 'me e ka qhibiliha hore e be tharollo e hlakileng le e ts'oanang metsing a batang le a chesang.

1. Kenyelletso e khutšoane ea CMCtshebediso ka lirafshoa

1.1 ts'ebeliso ea CMC ka lirafshoa

1.1.1. Molao-motheo oa kopo

CMC e na le sebopeho se ikhethileng sa polymer. Ha CMC e eketsoa metsing, sehlopha sa eona sa hydrophilic (-Coona) se kopantsoe le metsi ho etsa lera le qhibilihisitsoeng, le qhalakanyang limolek'hule tsa CMC metsing butle-butle. Sebopeho sa marang-rang pakeng tsa li-polymers tsa CMC se thehoa ke hydrogen bond le matla a van der Waals, ka hona ho bontša bonngoe. CMC e ikhethileng ka 'mele e ka sebelisoa e le mothusi, polasetiki le matlafatso ea billet indastering ea ceramic. Ho eketsa palo e nepahetseng ea CMC ho billet ho ka eketsa matla a tlamahano ea billet, ho etsa hore billet e be bonolo ho theha, ho eketsa matla a flexural ka makhetlo a 2 ~ 3, le ho ntlafatsa botsitso ba billet, e le ho ntlafatsa tekanyo ea boleng ba boleng. li-ceramics, ho fokotsa litšenyehelo tsa ho sebetsa hamorao. Ka nako e ts'oanang, ka lebaka la ho eketsoa ha CMC, lebelo la ts'ebetso ea li-billet tse tala li ka ntlafatsoa 'me tšebeliso ea matla ea tlhahiso e ka fokotseha,' me metsi a ka har'a billet a ka fetoha mouoane ka tsela e ts'oanang ho thibela ho omisa le ho phunyeha, haholo-holo ka boholo bo boholo. ea fatše tile billet le bentšitsoeng setene billet, phello e totobetse haholoanyane. Ha ho bapisoa le li-agent tse ling tse matlafatsang 'mele, CMC e ikhethileng e na le litšobotsi tse latelang:

(1) tekanyo e fokolang: hangata tekanyo e ka tlaase ho 0.1%, e leng 1/5 ~ 1/3 ea ntho e 'ngoe e matlafatsang' mele, ha matla a ho kobeha a 'mele o motala a hlakile' me litšenyehelo li ka fokotsoa.

(2) tahlehelo e ntle ea tukang: ka mor'a ho chesa hoo e batlang e se molora, ha ho na masala, ha e ame 'mala o motala.

(3) ka ho fanyeha molemo: ho thibela mafutsana lihlahisoa tse tala le pulp pula, e le hore slurry evenly qhalakane.

(4) Apara khanyetso: ts'ebetsong ea ho sila bolo, ketane ea limolek'hule ha e senyehe haholo.

1.1.2. Mokhoa oa ho eketsa

Kakaretso ea CMC ka billet ke 0.03 ~ 0.3%, e ka fetoloang ho latela litlhoko tsa sebele. Bakeng sa slurry le lintho tse ngata tse futsanehileng tse tala ka foromo, CMC ka li ekeletsoa leloala bolo le fatše hammoho le seretse, ela hloko junifomo qhalakana, e le hore a se ke a ba thata ho qhala ka mor'a agglomeration, kapa CMC ka e qhibilihe pele ka metsi ka 1:30 ka thoko ebe e ekeletsoa leloaleng la bolo bakeng sa ho kopanya lihora tse 1 ho isa ho tse 5 pele o sila.

1.2. Tšebeliso ea CMC ho glaze slurry

1.2.1 Molao-motheo oa tšebeliso

Glaze paste special TYPE CMC ke ts'ebetso e tsitsitseng ea ts'ebetso le setlamo se setle, se sebelisetsoang glaze e tlase ea lithaele tsa ceramic le holim'a glaze, e ka eketsa matla a tlamahano a glaze slurry le 'mele, hobane glaze slurry e bonolo ho pula le botsitso bo fokolang, le CMC le mefuta eohle ea Khokahano ea glaze e ntle, e na le phallo e ntle haholo le colloid e sireletsang, e le hore 'mele o benyang o tsitsitse haholo. boemo ba ho qhalakana. Kamora ho eketsa CMC, tsitsipano e holim'a glaze e ka ntlafatsoa, ​​metsi a ka thibeloa ho tloha ho glaze ho ea 'meleng, boreleli ba glaze bo ka eketseha, ho phatloha le ho robeha ho bakoang ke ho theoha ha matla a' mele kamora kopo ea glaze e ka qojoa, 'me ketsahalo ea pinhole ea glaze le eona e ka fokotsoa kamora ho baka.

1.2.2. Mokhoa oa ho eketsa

Palo ea CMC e kenyellelitsoeng ho glaze e tlase le bokaholimo ba marang-rang bo tloha ho 0.08 ho isa ho 0.30%. E ka fetoloa ho latela litlhoko tsa sebele. Taba ea pele, CMC e lokiselitsoe tharollo ea 3% ea metsi. Haeba e hloka ho bolokoa ka matsatsi a 'maloa, tharollo e lokela ho kenngoa ka sejaneng se sa keneleng moea se nang le li-preservatives tse loketseng le ho bolokoa mocheso o tlase. Ka mor'a moo, tharollo e kopantsoe ka mokhoa o ts'oanang le glaze.

1.3 ts'ebeliso ea CMC ho glaze ea khatiso

1.3.1, khatiso e khethehileng ea glaze CMC e na le thepa e ntle e teteaneng le ho qhalakanngoa le botsitso, CMC e khethehileng ea ho amohela theknoloji e ncha, ho qhibiliha hantle, pepeneneng, hoo e batlang e se na li-insolubles, empa hape e na le sekhahla se phahameng sa ho kuta le lubrication, e ntlafatsa haholo khatiso ea glaze. ho ikamahanya le maemo, ho fokotsa skrine, ho thibela ts'ebetso ea skrine, ho fokotsa linako tsa marang-rang, ha ho hatisa ts'ebetso e boreleli, mokhoa o hlakileng, mebala e metle e tsitsitseng.

1.3.2 Palo e akaretsang ea ho eketsa glaze ea khatiso ke 1.5-3%. CMC ka soaked le ethylene glycol 'me joale ekeletsoa ka metsi ho etsa hore presoluble, kapa 1-5% sodium tripolyphosphate le 'mala thepa e ka omella tsoakane hammoho,' me joale qhibiliha ka metsi, e le hore thepa e sa tšoaneng e ka qhibiliha ka ho feletseng le ka ho lekana.

1.4. Tšebeliso ea CMC ho glaze ea ho kenella

1.4.1 Molao-motheo oa tšebeliso

Ho kenella ka har'a glaze e na le letsoai le lengata le qhibilihang, acid, 'me ho kenella ka mokhoa o sa lekanyetsoang glaze e khethehileng ea CMC e na le botsitso bo phahameng ba acidity ea letsoai, etsa hore ho phunyeha ha glaze nakong ea ts'ebeliso le ho beoa ho boloka viscosity e tsitsitseng, ho thibela ka lebaka la liphetoho tsa viscosity, mmala le penetration glaze khethehileng CMC metsi qhibilihang ka har'a metsi, permeability letlooa le ho bolokoa ha metsi e ntle haholo, ho boloka botsitso ba letsoai le qhibilihang. glaze e na le thuso e ngata.

1.4.2. Mokhoa oa ho eketsa

Hlakola CMC ka ethylene glycol, metsi a mang le ntho e rarahaneng, ebe u kopanya hantle le tharollo ea mebala e qhibilihisitsoeng.

2.CMC e lokela ho lebisoa tlhokomelo ho tlhahiso ea ceramic

2.1 Mefuta e fapaneng ea CMC e bapala likarolo tse fapaneng tlhahisong ea ceramic. Khetho e nepahetseng e ka finyella morero oa moruo le katleho.

2.2. Ka glaze le khatiso glaze, ha ho hlokahale ho coopt CMC dihlahiswa le tlaase bohloeki, haholo-holo ka khatiso glaze, phahameng bohloeki CMC le phahameng bohloeki, acid e ntle le letsoai ho hanyetsa le pepeneneng phahameng lokela ho khethoa ho thibela ripples le pinholes holim'a qhoqhoa. Ka nako e ts'oanang, e ka boela ea thibela ts'ebeliso ea letlooa la plug, boemo bo bobe le 'mala le liketsahalo tse ling.

2.3 Haeba mocheso o phahame kapa glaze e hloka ho behoa nako e telele, li-preservative li lokela ho kenngoa.

3. Tlhahlobo ea mathata a tloaelehileng a CMC tlhahiso ea ceramic

3.1. Mokelikeli oa seretse ha o motle 'me ho thata ho kenya sekhomaretsi.

Ka lebaka la viscosity ea CMC ka boeona, viscosity ea seretse e phahame haholo, e leng se lebisang ho thata ho pulping. Tharollo ke ho fetola palo le mofuta oa coagulant, ho khothaletsa foromo e latelang ea decoagulant1) sodium tripolyphosphate 0,3%; (2) sodium tripolyphosphate 0.1% + sodium silicate 0.3%; (3) Sodium humate 0.2% + sodium tripolyphosphate 0.1%

3.2. Peista ea glaze le oli ea khatiso li tšesaane.

Mabaka a ho khetha pente ea glaze le oli ea khatiso ke tse latelang1) peista ea glaze kapa oli ea khatiso e senngoa ke likokoana-hloko, e le hore CMC e hlolehe. Tharollo ke ho hlatsoa setshelo sa pente ea glaze kapa oli ea khatiso hantle, kapa ho eketsa li-preservatives tse kang formaldehyde le phenol. (2) Tlas'a tšusumetso e tsoelang pele ea matla a ho kuta, viscosity ea fokotseha. Ho khothalletsoa ho fetola tharollo ea metsi a CMC.

3.3. Beha mesh ha u sebelisa glaze ea khatiso.

Tharollo ke ho fetola palo ea CMC, e le hore viscosity ea khatiso ea glaze e itekanetse, haeba ho hlokahala, eketsa metsi a seng makae ho tsosa ka ho lekana.

3.4, ho thibela marang-rang, hlakola palo ea linako.

Tharollo ke ho ntlafatsa ponaletso le ho qhibiliha ha CMC. Ho lokisa oli ea khatiso ka mor'a hore ho phethoe sieve ea 120 mesh, oli ea khatiso e boetse e hloka ho fetisa 100 ~ 120 mesh sieve; Fetola viscosity ea khatiso ea glaze.

3.5, ho boloka metsi ha ho molemo, ka mor'a ho hatisa phofo ea holim'a metsi, e ama khatiso e latelang.

Tharollo ke ho eketsa palo ea glycerin nakong ea ho lokisetsa oli ea khatiso; Fetolela boemong bo phahameng ba ho fetola (fetola ho tšoana hantle), CMC ea viscosity e tlaase ho lokisetsa oli ea khatiso.