Nyob rau hauv cov txheej txheem ntawm debugging thiab siv glazes, ntxiv rau kev sib tham tshwj xeeb cov teebmeem thiab kev ntsuas ua tau zoo, lawv kuj yuav tsum ua kom tau raws li cov txheej txheem kev ua tiav. Peb teev thiab tham txog ob qho teeb meem feem ntau hauv cov txheej txheem ntawm kev siv glazes.
1. Cov kev ua tau zoo ntawm ci slurry tsis zoo
Vim tias cov khoom lag luam ntawm cov ceramic Hoobkas txuas ntxiv, yog tias muaj teeb meem ntawm cov txheej txheem ci, ntau yam tsis xws luag yuav cuam tshuam nrog tus nqi zoo tshaj ntawm cov khw muag khoom cov khoom lag luam. Tseem ceeb thiab qhov kev ua tau zoo tshaj plaws. Cia peb coj cov kev xav tau kev ua tau zoo ntawm lub tswb nrov txhaws ntsej muag rau ntawm lub ntsej muag ci ntsa iab ua piv txwv. Lub ntsej muag ci zoo kawg li yuav tsum muaj: zoo nkauj, tsis muaj nag lossis dej nag, thiab cov dej noo nyob hauv lub zog thaum qhuav, thiab lwm yam kev ua tau zoo. Tom qab ntawd cia peb tshawb xyuas qhov tseeb uas cuam tshuam rau kev ua tau zoo ntawm lub ntsej muag ci slurry.
1) cov dej ua tau zoo
Lub hardness thiab Ph ntawm dej yuav cuam tshuam cov kev ua tau zoo ntawm cov slurry slurry. Feem ntau, cov cawv ntawm cov dej zoo yog cheeb tsam cheeb tsam yog cheeb tsam. Coj mus rhaub dej nyob hauv ib qho chaw qee thaj chaw feem ntau yuav luag tsis ruaj, tab sis av tsis ruaj khov vim yog cov khoom siv soluble hauv pob zeb txheej thiab cov pa paug. Kev ruaj khov, yog li cov chaw tsim khoom pob zeb zeb ci slurry yog qhov zoo tshaj plaws los siv cov kais dej, uas yuav ruaj khov.
2) soluble ntsev cov ntsiab lus hauv cov ntaub ntawv raw
Feem ntau, cov nag lossis daus ntawm cov hlau alkali thiab alkaline ntiaj teb hlau ions hauv dej yuav cuam tshuam rau cov pH thiab muaj peev xwm sib npaug hauv lub ntsej muag ci. Yog li ntawd, nyob rau hauv kev xaiv ntawm cov ntaub ntawv nyoos cov ntaub ntawv, peb sim siv cov ntaub ntawv uas tau ua los ntawm kev muab tshuaj txhuam, ntxuav dej, thiab dej milling. Nws yuav tsawg dua, thiab cov ntsiab lus ntawm soluble ntsev nyob rau hauv raw cov ntaub ntawv kuj tseem muaj feem xyuam ntawm Oreas Veins thiab kev ua yeeb yam ntawm huab cua. Cov mines sib txawv muaj txawv soluble ntsev cov ntsiab lus. Cov qauv yooj yim yog ntxiv cov dej hauv qee qhov kev faib ua feem thiab sim tus nqi ntws ntawm lub ntsej muag ci ntawm slurry tom qab pob milling. , Peb sim siv tsawg dua los yog tsis muaj cov khoom siv raw nrog tus nqi ntws tsis zoo.
3) sodiumCarboxymethyl cellulosethiab sodium tripolyphosphate
Cov neeg sawv cev raug siv rau hauv peb cov khoom ua yeeb yam zoo nkauj yog cov kab mob viscosity hauv CMC, feem ntau hu ua CMC, feem ntau hu ua Molcular tau hais txog ntev, lub viscosity yog qhov zoo, tab sis nyob rau hauv Cov npuas ci ntsa iab slurry yooj yim tshwm sim hauv nruab nrab thiab nws nyuaj rau kev tawm. Yog hais tias cov molecular chart luv heev, lub viscosity tsuas yog muaj tsawg thiab cov txiaj ntsig sib raug zoo tsis tau, thiab lub ntsej muag ci ntsa iab yog yooj yim rau kev tso rau ib lub sijhawm. Yog li ntawd, feem ntau ntawm cov cellulose siv hauv peb lub chaw ua haujlwm yog nruab nrab thiab tsis muaj vaccosity cellulose. Cov. Qhov zoo tshaj ntawm sodium tripolyphosphate yog ncaj qha rau tus nqi. Tam sim no, ntau cov khoom ntawm kev ua lag luam yog kev deev luag poj luag txiv, ua rau muaj kev poob ntse hauv degumming kev ua tau zoo. Yog li ntawd, nws yog feem ntau tsim nyog los xaiv cov tuam txhab sib xws los yuav, txwv tsis pub cov poob outweighs qhov nce!
4) Txawv tebchaws tsis txaus ntseeg
Feem ntau, qee cov tshuaj muaj kuab lom thiab cov tshuaj tua hluav taws kub thiab cov tshuaj tua kab mob tau raug coj los siv rau thaum lub sij hawm tsuas thiab kev ua cov ntaub ntawv raw. Ntxiv mus, ntau cov av nkos cuav siv qee cov organic additives nrog cov saw loj loj. Roj ua qias tuaj ncaj qha ua rau concave ci txawv ntawm lub ci saum npoo. Cov pa taws ua ke yuav cuam tshuam rau cov kua qaub ua kom sib npaug thiab cuam tshuam rau cov kua dej ntawm lub ci slurry. Cov av nkos cuav ntxiv muaj cov hlua khi loj thiab muaj kev npuas loj.
5) Cov organic teeb meem hauv cov khoom siv raw
Cov ntaub ntawv nyoos Raw yog inevitably coj mus rau cov organic teeb meem vim yog ib nrab-lub neej, kev sib txawv thiab lwm yam. Qee qhov ntawm cov organic no yog qhov nyuaj rau yaj hauv dej, thiab qee zaum yuav muaj huab cua npuas, sieving thiab thaiv.
2. Lub hauv paus ci tsis zoo phim:
Qhov txuam ntawm lub cev thiab ci ci tuaj yeem sib tham los ntawm peb yam: txuam ntawm kev tawm hauv kev tawm hauv kev tawm tsam, kom qhuav thiab hluav taws xob sib txuam, thiab nthuav tawm coeffage. Cia peb txheeb xyuas lawv ib tus:
1) Kev tua hluav taws tso rau hauv kev sib tw
Thaum lub sij hawm cov txheej txheem cua sov ntawm lub cev thiab lub ntsej muag ci, xws li: adsorption ntawm cov dej muaj teeb meem, oxidoatition ntawm cov zaub mov organic thiab decomposition ntawm inorganic zaub mov, thiab lwm yam Cov.
② 200-118 degrees Celsius dej evaporation ntawm compartius hlawv tawm ntawm cov organ 573-650 degrees, kev hloov pauv Clectius, ntim hloov ⑥ 800-950 Degrees Celsius Calcite, roj tsis zoo, roj tsis txhob cais tawm ⑦ 700 degrees Celsius kom tsim cov khoom tshiab silicate thiab complex silicate phases.
Qhov kev sib raug zoo saum toj no tsuas yog siv tau raws li kev siv hauv cov nqi ntau lawm, thiab, txhawm rau txo cov nqi ntau lawm, thiab, txhawm rau txo cov nqi ntau lawm, thiab, txhawm rau txo cov nqi ntau lawm, thiab, txhawm rau txo cov nqi ntau lawm, thiab, txhawm rau txo cov nqi ntau lawm, thiab, txhawm rau txo cov nqi ntau lawm, thiab, txhawm rau txo cov nqi ntau lawm, thiab, txhawm rau txo cov nqi ntau lawm, thiab, txhawm rau txo qis qis thiab qis dua thiab qis dua thiab luv dua. Yog li ntawd, rau cov vuas luaj ceramic, cov kev txiav txim siab decomposition kev hloov kho kub yuav ua rau teb nrawm nrawm, thiab txawm muaj kev tso pa nrawm nrawm yuav ua rau muaj ntau yam tsis xws luag. Txhawm rau ua noj dumplings, thiaj li ua rau lawv ua noj sai sai Kev hlawv, lub cev thinning, ci hluav taws kub ua dav dav thiab lwm yam. Kev sib raug zoo ntawm lub cev thiab ci ci yog tib yam li cov ntxhais 'pleev. Cov uas tau pom cov ntxhais 'pleev yuav tsum tsis txhob nkag siab yog vim li cas muaj hauv qab glazes thiab sab saum toj pom ntawm lub cev. Qhov tseem ceeb ntawm kev pleev tsis yog zais ugliness thiab zoo nkauj nws! Tab sis yog tias koj hws tawm hws me ntsis, koj lub ntsej muag yuav tsuas yog, thiab koj yuav ua xua. Tib yam muaj tseeb rau cov vuas luaj ceramic. Lawv tau pib hlawv zoo, tab sis pinholes tau tshwm sim muaj kev sib tsoo, yog li vim li cas thiaj li ua kom cov tshuaj pleev ib ce ua pa kom haum thiab xaiv raws li cov tawv nqaij sib txawv? Cov tshuaj pleev ib ce sib txawv, qhov tseeb, peb lub ntsej muag sib txawv, peb kuj tau muab cov lus sib txawv rau lawv ib zaug: nws yuav zoo dua rau siv cov khoom nyoos ntau yog tias huab cua Puas yog lig thiab qhia txog kev ua phem rau Alkaline Lub Txiaj Ntsig Mekaline Cov Hlau Nrog Carbonate. Yog tias lub cev ntsuab sab sab ua kom tiav ua ntej, siv cov kib ntxiv lossis ua kom pom cov av alkaline muaj hlau uas muaj cov khoom siv tsawg. Lub hauv paus ntsiab lus ntawm kev sab nrauv yog: lub zog sab hauv lub cev yog feem ntau zoo nkauj tom qab cov glazeled yog qhov zoo nkauj, tab sis nws yog qhov nyuaj rau kev ua tiav hauv kev tsim khoom tiag tiag, thiab cov Softening taw tes ntawm lub ntsej muag yuav tsum tau muab rov qab kom yooj yim kom yooj yim lub cev tso pa.
2) Kom qhuav thiab tua hluav taws sib txuam
Txhua tus hnav khaub ncaws, thiab lawv yuav tsum yog xis nyob, lossis yog tias pom kev tsis saib xyuas me ntsis, thiab lub ntsej muag rau cov khaub ncaws uas peb hnav, thiab nws yuav tsum haum kom haum! Yog li ntawd, cov ziab khaub ncaws shrinkage ntawm lub ntsej muag ci yuav tsum tau phim lub cev ntsuab, thiab nws yuav tsum tsis txhob tawg, thiab lub cib tiav yuav muaj qhov tsis xws luag. Tau kawg, raws li cov kev paub thiab qib kev kawm ntawm cov neeg ua haujlwm ci tam sim no kuj tau hais tias qhov no tsis yog qhov xwm txheej nyuaj ntxiv rau cov av nplaum, yog li cov xwm txheej saum toj no tsis tshwm sim ntau, tshwj tsis yog Cov teeb meem saum toj no tshwm sim hauv qee cov teeb meem uas muaj cov xwm txheej hnyav hnyav.
3) Kev nthuav dav coefficiession
Feem ntau, nthuav tawm coefficient ntawm lub cev ntsuab yog me ntsis loj dua li tias ntawm lub ntsej muag ntsuab tom qab tua lub cev ntsuab, kom lub ntsej muag ci ntsa iab ntawm lub ci ci yog qhov yooj yim thiab nws tsis yooj yim rau tawg Cov. Nov kuj yog txoj kev xav uas peb yuav tsum kawm thaum peb kawm siicates. Ob peb hnub dhau los ib tus phooj ywg nug kuv: Vim li cas nthuav qhia coefficient ntawm lub cev loj dua li ntawm lub cev loj dua li ntawm lub cev, yog li cib Daim duab yog nkhaus? Nws yog qhov tsim nyog hais tias tom qab tau ua kom sov thiab nthuav dav, lub ntsej muag yog qhov loj dua lub hauv paus thiab yog ci, thiab ci yog qhov me dua ntawm lub hauv paus thiab yog warped ...
Kuv tsis tau nrawm los muab cov lus teb, cia saib seb cov coefficienty thermal expansion yog. Ua ntej tshaj plaws, nws yuav tsum yog tus nqi. Dab tsi ntawm tus nqi yog nws? Nws yog tus nqi ntawm cov ntim ntawm cov khoom uas hloov nrog kub. Zoo, vim nws hloov nrog "kub", nws yuav hloov thaum kub thiab ntog. Lub thermal nthuav kev coefficient peb feem ntau hu ceramics yog qhov tseeb lub ntim nthuav cov coeffanic. Cov coefficient ntawm ntim nthuav dav feem ntau cuam tshuam nrog coefficient ntawm linear nthuav, uas yog li 3 zaug ntawm linear nthuav. Qhov ntsuas kev ntsuas ntsuas me me uas feem ntau muaj kev ua tiav, uas yog, "nyob rau hauv ib qho kub ntau". Piv txwv li, dab tsi ntawm nkhaus yog tus nqi ntawm 20-400 degrees Celsiius nyob rau hauv dav dav? Yog tias koj hais kom sib piv tus nqi ntawm 400 degrees rau 600 degrees ntawm chav kawm, tsis muaj lub hom phiaj xaus tuaj yeem kos los ntawm kev sib piv.
Tom qab to taub lub tswv yim ntawm kev nthuav kev coefficient, cia rov qab mus rau lub ntsiab lus qub. Tom qab cov vuas yog rhuab nyob rau hauv lub kiln, lawv muaj ob qho kev nthuav dav thiab kev txhawb nqa. Cia peb tsis xav txog cov kev hloov pauv ntawm thaj chaw kub vim kev nthuav dav thiab kev cog lus ua ntej. Vim li cas? Vim tias, nyob rau qhov kub thiab txias, ob qho tib si lub cev ntsuab thiab ci ci yog yas. Txhawm rau muab nws bluntly, lawv yog mos, thiab cawv ntawm lub ntiajteb txawj nqus yog loj dua li lawv tus kheej nro. Qhov tsim nyog, lub cev ntsuab yog ncaj thiab ncaj, thiab kev nthuav dav coefficient muaj cov nyhuv me me. Tom qab cov ceramic cov pobzeb kis los ntawm ntu kub, nws poob siab sai thiab qeeb cua txias, thiab cov pobzeb ceric ua rau lub cev yas. Raws li qhov ntsuas kub tsawg, qhov ntim shrinks. Ntawm chav kawm, cov loj dua qhov nthuav dav coefficient, tus loj dua cov me me, thiab cov me dua nthuav tawm coefficienty, tus me dua cov kev sib raug zoo shrinkage. Thaum lub zog nthuav dav ntawm lub cev yog ntau dua li ntawm lub ntsej muag ci ntsa iab, lub cev shrinks ntau dua li lub ntsej muag txias tshaj li lub ntsej muag txias thaum lub sij hawm txias, thiab lub cib yog nkhaus; Yog hais tias nthuav tawm coefficient ntawm lub cev yog me dua li ntawm lub ntsej muag ntawm lub ntsej muag, lub cev shrinks yam tsis muaj ntsej muag tsis muaj ntsej muag thaum lub sijhawm txias. Yog tias muaj ntau cib, cov cib yuav raug upturned, yog li nws tsis yog qhov nyuaj los piav cov lus nug saum toj no!
Lub Sijhawm Post: Apr-25-2024