1.Dab tsi yog qhov cuam tshuam ntawm cov txheej txheem thiab cov khoom siv raw?
Tsawg xim viscosity: Qhov no yog qhov ua rau ncaj qha tshaj plaws. Kev sib ntxiv ntawm cov thinner ntau dhau thaum sib xyaw xim, lossis siv qhov tsis sib xws sai sai - ziab thinner, ua rau cov xim tsis muaj viscosity ntau dhau, ua rau nws nyuaj rau kev ua raws li qhov chaw zoo li dej.
Cov xim tsis zoo thixotropy: Siab- cov xim zoo yuav tsum muaj cov thixotropy zoo-siab viscosity ntawm so kom tiv thaiv sedimentation; viscosity txo qis thaum daim ntawv thov shearing (piv txwv li, ntawm cov menyuam txheej txheej) kom yooj yim leveling; thiab rov qab sai sai rau siab viscosity tom qab shearing los tiv thaiv sagging. Cov xim tsis zoo thixotropy tsis tuaj yeem rov qab sai sai tom qab thov, ua rau lawv poob qis.
Cov kuab tshuaj evaporation qeeb: Yog tias qhov sib piv ntawm qeeb- ziab cov kuab tshuaj hauv cov mis yog siab dhau, cov xim yuav nyob hauv qhov cub ntev dhau, ua rau cov kuab tshuaj evaporation qeeb thiab lub sijhawm ntev ntawm cov txheej txheem, ua rau sagging.
Kub xim xim: Kub kub ntau heev thaum lub sij hawm xim cia los yog ncig yuav txo nws cov viscosity, ua rau muaj kev pheej hmoo ntawm sagging.
2.Dab tsi cuam tshuam cov txheej txheem tsim khoom thiab cov kev txwv muaj?
Cov yeeb yaj kiab ntub dej ntau dhau: Qhov no yog qhov ua rau loj ntawm cov kab ntau lawm.
Kev teeb tsa tsis zoo rau cov menyuam yaus: Qhov sib txawv ntawm cov menyuam yaus ntawm cov menyuam coater (xws li ob- lossis peb-cov menyuam coater) yog qhov tseem ceeb rau kev tswj cov txheej txheem. Qhov sib txawv loj dhau ua rau cov txheej txheej ntau dhau raug xa mus rau lub rooj tsavxwm.
Kev sib piv ntawm cov menyuam tsis sib haum: Qhov sib piv tsis zoo ntawm cov menyuam pub rau cov menyuam thiab cov menyuam txheej (los yog sawb) ua rau cov txheej txheem ntau dhau.
Kev ua haujlwm tsis zoo txheej tshuab:
Tsis sib npaug ntawm cov menyuam siab hloov kho.
Xim qib nyob rau hauv lub tais yog siab dhau lawm, ua rau cov txheej txheej rau cov menyuam nkag mus tob heev.
Tsis tsim nyog curing qhov cub kub profile:
Preheating cheeb tsam (los yog thawj cheeb tsam) qhov kub thiab txias yog tsawg heev: lub txheej tsis ncav cuag lub "gel" lub sij hawm thiab yog rhuab thaum tseem muaj fluidity zoo, exacerbating sagging.
Zuag qhia tag nrho qhov cub kub yog tsawg dhau, ua rau qeeb kho cov tshuaj tiv thaiv.
Cov kab ntau lawm qeeb: Nrog tib lub txheej txheej, qhov qeeb ntawm txoj kab nrawm, qhov ntev ntawm cov txheej txheej ntub dej yog raug rau lub ntiajteb txawj nqus ua ntej nkag mus rau hauv qhov cub, ua rau kom paub meej sagging.
3.Dab tsi cuam tshuam cov cuab yeej cuab tam muaj?
Cov menyuam hnav lossis kev puas tsuaj: Pitted, khawb, lossis tsis sib xws ntawm cov menyuam yaus tuaj yeem ua rau cov xim txawv txav hauv zos, ua rau muaj kev sib tw thiab khiav.
Roller system vibration lossis bearing puas: Qhov no ua rau cov txheej txheem tsis sib xws.
Kev tswj tsis ruaj khov: Kev hloov pauv ntawm qhov nro ntawm daim ntawv thaum txheej txheej ua rau muaj kev hloov pauv ntawm kev sib cuag nrog cov chais, cuam tshuam rau txheej txheej uniformity.
Cov cua kub tsis sib xws hauv qhov cub: Qhov no ua rau muaj qhov kub thiab txias ntawm daim ntawv, ua rau qeeb qeeb.
4.Dab tsi yog qhov cuam tshuam ntawm substrates rau ib puag ncig?
Tsis tshua muaj substrate kub: Ib qho txias substrate tuaj yeem ua rau muaj qhov nce ntxiv ntawm cov viscosity ntawm txheej hauv kev sib cuag nrog nws. Txawm li cas los xij, qhov sib txawv ntawm qhov kub thiab txias kuj tuaj yeem ua rau hnyav condensation, cuam tshuam rau qib thiab ua rau muaj teeb meem.
Kub ambient kub thiab av noo: tshwj xeeb tshaj yog nyob rau hauv high humidity ib puag ncig, hnyav evaporation yuav cuam tshuam, thiab txheej yuav nqus noo noo, hloov nws rheological zog.
Roj los yog paug rau ntawm qhov chaw substrate: Qhov no cuam tshuam rau cov txheej txheej ntub dej thiab adhesion, uas ua rau muaj kev cuam tshuam hauv cheeb tsam, qhov tsis sib xws.
5.Dab tsi yog qee qhov kev daws teeb meem?
Ua ntej, xyuas cov txheej txheem hauv qab no:
Tam sim ntawd kho tus nqi txheej: Txo qhov sib txawv ntawm cov txheej txheem txheej; qhov no yog txoj kev kho sai tshaj plaws thiab zoo tshaj plaws.
Tshawb xyuas thiab kho cov kab ceev thiab qhov cub kub: Thaum ua kom muaj kev kho kom zoo, tsim nyog nce qhov kub ntawm qhov kub thiab txias los yog tag nrho cov kab ceev.
Paub meej tias txheej txheej viscosity: Siv lub khob viscosity los ntsuas ntawm -qhov chaw thiab xyuas kom meej tias nws nyob hauv thaj tsam uas tau teev tseg hauv cov txheej txheem.
Tshawb xyuas lub txheej nws tus kheej:
Xyuas seb lub thinner ntau dhau los yog hom tsis raug.
Paub meej tias batch zoo ib yam nrog tus neeg muab txheej txheej, tshwj xeeb tshaj yog thaum hloov mus rau ib pawg tshiab.
Xyuas cov cuab yeej siv:
Tshawb xyuas qhov xwm txheej ntawm cov menyuam txheej txheej thiab xyuas kom cov bearings ua haujlwm zoo.
Paub meej tias lub siab thiab kev sib luag ntawm txhua tus menyuam ntawm lub taub hau txheej.
Xav txog ib puag ncig thiab substrate:
Xyuas kom lub substrate yog huv si thiab qhuav ua ntej nkag mus rau lub txheej chamber.
Tswj qhov kub thiab av noo nyob rau hauv lub txheej chamber.