Cov txheej txheem ntawm txheej txheem yog mus sib tov khoom ntawm pigments thiab fillers ua kua coatings rau ib lub cev thiab raug muab tshem tawm txoj kev faib tawm. Cov khoom pov thawj ntawm cov pigments thiab fillers muaj tsawg, thiab lawv qhov loj yog li 0.01-2 um. Vim hais tias cov khoom siv feem ntau yog khi rau ib leeg rau daim ntawv cog lus (cov khoom thib ob) hauv kev ua thiab kev khiav tsheb thiab kev thauj mus los, qhov loj qhov hnyav tuaj yeem nce mus rau ntau dua 100 um. Yog li, nws yuav tsum tshem tawm cov aggregates thiab disperse lawv stably thiab tusyees hauv cov xim muaj xim. Nruab nrab. Hauv kev tsim cov txheej txheem ntawm cov txheej txheem, cov khoom sib tsoo thiab cov khoom sib txuas ua cov cuab yeej plays tseem ceeb heev nyob rau hauv lub xeev cov pa pigments hauv coatings, kev ua tau zoo tshaj plaws ntawm cov pigments (xim xim, npog lub zog, huab cua, thiab lwm yam) coatings thiab coatings.
Yog li ntawd, yuav ua li cas los txhim kho cov teebmeem dispersion, tsim thiab siv cov khoom zoo npaum li cas, thiab xaiv cov ntaub ntawv zoo zoo thiab qhov zoo tshaj plaws kev tsim tawm hauv kev tsim cov coatings tau los ua ib qho tseem ceeb hauv kev tsim cov coatings. Pre-dispersion feem ntau yog siv nyob rau hauv cov txheej txheem ntawm coatings, uas yog tsuas yog los ntawm mixing thiab plays lub luag hauj lwm nyob rau hauv dispersion. Tam sim no, cov khoom siv ua ntej tshaj plaws yog cov disperser high-speed, thiab cov txheej txheem no yog ib txoj kev npaj rau kev nplua zoo. Cov cuab yeej loj tshaj plaws rau kev tsim cov coatings rau kev sib tsoo thiab cov khoom sib faib khoom.
Nyob rau ntawm tam sim no, muaj ntau hom, xws li ntsug grinder, kab rov tav li, peb-yob grinder thiab li on. Lub pob tawb grinder tau piav qhia nyob rau hauv daim ntawv no yog kev sib tsoo thiab cov khoom sib txuas hauv cov xim xim. Xim. Lim ntim. Piv nrog cov kab rov tav thiab ntsug grinders uas tau siv nyob rau hauv kev lag luam xim rau xyoo lawm, pob tawb grinder yog ib yam khoom tshiab siv hauv xyoo tas los.
Ib lub pob tawb yog tsau rau ntawm lub taub hau ntawm pob tawb grinder, uas nyob nruab nrab ntawm qhov sib tsoo. Thaum ua haujlwm, lub pob tawb grinding yog immersed nyob hauv slurry. Cov qwj nplaum hauv cov txawb sib txig tsiv siab ntawm kev kub ceev thiab ua rau muaj zog. Lub slurry yog sucked rau hauv lub pob tawb nrog sib tsoo medium rau dispersion thiab sib tsoo. Nyob rau hauv kev txiav txim ntawm lub zog centrifugal, cov khoom nyob rau hauv lub pob tawb raug pov tseg tawm ntawm lub pob tawb los ua ib qho kev sib txig siab zoo ntawm kev sib tsoo. Piv nrog rau cov kab rov tav thiab ntsug grinders, lub pob tawb grinder tsis xav tau twj thiab raj dej tshuab. Kev sib tsoo pob txha tuaj yeem tau nqa, ntxuav thiab kho kom zoo, thiab nws yog ib qho yooj yim los hloov cov xim, nrog tsawg residue, kev sib txuam theem siab thiab zoo fineness. Zus tau cov pob tawb grinder yog ib qho ntxiv rau cov kev txwv ntawm cov khoom sib tsoo khoom xws li kab rov tav li thiab txoj kab sib ntsug. Tseem muaj cov tuam txhab nyob rau hauv Tuam Tshoj nquag koom ua kev tsim khoom thiab kev tshawb fawb ntawm pob tawb grinders. Daim ntawv thov ntawm pob tawb grinder tau dav siv nyob rau hauv kev lag luam xim txij thaum lub advent ntawm sand grinder. Kab rov tav li, ntsug li qub thiab ua ntej peb-yob zom muaj txawv zog kom tau raws li cov kev xav tau ntawm cov xim muaj hlau ntau. Txawm li cas los, kuj muaj ntau yam kev txwv. Piv txwv li, tus disperser tsuas yog siv rau pre-dispersing nruab nrab thiab qib high-coatings, tab sis tsis tuaj yeem cuam tshuam cov nyhuv ntawm cov slurry uas yuav tsum tau rau theem nrab thiab qib siab; xuab zeb zeb: tuaj yeem ua tau tujtaws, tab sis tsis haum rau cov zauv nyuaj dispersible pigments xws li carbon dub thiab hlau xiav; slurry tsis yooj yim rau kev ua thaum nws cov viscosity siab; nws yog qhov nyuaj rau tu thiab seem thaum hloov cov xim, uas yog kev txwv ntawm cov xuab zeb zeb;
Peb-yob grinder: Haum rau kev ua kom pom meej ua kom muaj zog thiab ua rau cov pigments tsis yooj yim. Tab sis qhib lag luam ua rau cov chaw ua hauj lwm tsis zoo, kev khiav hauj lwm kev ruaj ntseg zuj zus ntxiv thiab cov khoom tawg puas loj dua, tus qauv yog complex, lub debugging nyuaj, thiab efficiency cov nqi tsawg tsawg. Raws li cov saum toj no, cov pob tawb grinder tau siv ntau xim los ua xim nrog nws txoj kev yooj yim thiab kev ua haujlwm siab txij thaum nws tawm los.
