Hmoov putty yog ib hom khoom siv kho kom zoo nkauj hauv tsev, cov khoom tseem ceeb yog hmoov talcum thiab kua nplaum. Txheej dawb ntawm qhov chaw ntawm chav dawb uas nyuam qhuav yuav yog putty. Feem ntau qhov dawb ntawm putty yog siab tshaj 90 ° thiab qhov zoo yog siab tshaj 330 °.
Putty yog ib hom khoom siv rau kev kho phab ntsa, uas yog lub hauv paus zoo rau kauj ruam tom ntej ntawm kev kho kom zoo nkauj (pleev xim thiab ntawv ntsa). Putty muab faib ua ob hom: putty sab hauv phab ntsa thiab putty rau ntawm phab ntsa sab nraud. Putty phab ntsa sab nraud tuaj yeem tiv taus cua thiab hnub, yog li nws muaj gelation zoo, muaj zog siab thiab qis ib puag ncig. Cov ntsuas ntawm putty hauv phab ntsa sab hauv yog qhov zoo, thiab nws huv si thiab zoo rau ib puag ncig. Yog li ntawd, phab ntsa sab hauv tsis yog rau kev siv sab nraud thiab phab ntsa sab nraud tsis yog rau kev siv sab hauv. Putties feem ntau yog ua los ntawm gypsum lossis cement, yog li cov chaw ntxhib yooj yim dua los sib txuas ruaj khov. Txawm li cas los xij, thaum lub sijhawm tsim kho, nws tseem tsim nyog txhuam ib txheej ntawm tus neeg sawv cev sib txuas ntawm lub hauv paus kom kaw lub hauv paus thiab txhim kho kev sib txuas ntawm phab ntsa, yog li putty tuaj yeem sib txuas zoo dua rau lub hauv paus.
Ntau tus neeg siv cov hmoov putty yuav tsum lees tias qhov kev tshem cov hmoov putty yog qhov teeb meem loj heev. Nws yuav ua rau cov xim latex poob tawm, nrog rau qhov bulging thiab tawg ntawm cov txheej putty, uas yuav ua rau cov xim latex tawg.
Kev tshem tawm cov hmoov putty thiab kev ua kom dawb ntawm cov hmoov putty tam sim no yog cov teeb meem feem ntau tom qab kev tsim cov putty. Txhawm rau kom nkag siab txog cov laj thawj ntawm kev tshem tawm cov hmoov putty, peb yuav tsum xub nkag siab txog cov khoom siv raw thiab cov ntsiab cai kho ntawm cov hmoov putty, thiab tom qab ntawd sib xyaw cov phab ntsa thaum lub sijhawm tsim cov putty qhuav, nqus dej, kub, huab cua qhuav, thiab lwm yam.
8 qhov laj thawj tseem ceeb rau cov hmoov putty poob tawm.
ib qho laj thawj
Lub zog sib txuas ntawm cov putty tsis txaus los ua rau cov hmoov tshem tawm, thiab cov chaw tsim khoom tsis pom kev txo tus nqi. Lub zog sib txuas ntawm cov hmoov roj hmab tsis zoo, thiab qhov ntau ntxiv yog me me, tshwj xeeb tshaj yog rau cov putty phab ntsa sab hauv. Thiab qhov zoo ntawm cov kua nplaum muaj ntau yam ua rau qhov ntau ntxiv.
Vim li cas ob
Cov qauv tsim tsis tsim nyog, kev xaiv cov khoom siv thiab cov teeb meem ntawm cov qauv yog qhov tseem ceeb heev hauv cov qauv putty. Piv txwv li, hydroxypropyl methylcellulose (HPMC) yog siv ua cov putty tsis-waterproof rau sab hauv phab ntsa. Txawm hais tias HPMC kim heev, nws tsis ua haujlwm rau cov khoom sau xws li hmoov ya ob npaug, hmoov talcum, hmoov wollastonite, thiab lwm yam. Yog tias tsuas yog siv HPMC, nws yuav ua rau delamination. Txawm li cas los xij, CMC thiab CMS nrog tus nqi qis tsis tshem tawm cov hmoov, tab sis CMC thiab CMS tsis tuaj yeem siv ua putty tsis-waterproof, thiab lawv tsis tuaj yeem siv ua putty phab ntsa sab nraud, vim CMC thiab CMS react nrog grey calcium hmoov thiab dawb cement, uas yuav ua rau delamination. Kuj tseem muaj polyacrylamides ntxiv rau lime calcium hmoov thiab dawb cement ua cov txheej txheem tsis-waterproof, uas tseem yuav ua rau cov tshuaj tiv thaiv ua rau cov hmoov tshem tawm.
Vim Li Cas Peb
Qhov sib tov tsis sib npaug yog qhov ua rau cov hmoov putty raug tshem tawm ntawm phab ntsa sab hauv thiab sab nraud. Qee lub tuam txhab tsim khoom hauv lub tebchaws tsim cov hmoov putty nrog cov khoom siv yooj yim thiab ntau yam. Lawv tsis yog cov khoom siv sib tov tshwj xeeb, thiab qhov sib tov tsis sib npaug ua rau cov hmoov putty raug tshem tawm.
Vim li cas plaub
Qhov yuam kev hauv cov txheej txheem ntau lawm ua rau cov putty raug hmoov. Yog tias lub tshuab sib tov tsis muaj lub luag haujlwm ntawm kev ntxuav thiab muaj ntau cov seem, CMC hauv cov putty ib txwm yuav ua rau cov hmoov calcium tshauv hauv cov putty tsis muaj dej. CMC thiab CMS hauv cov phab ntsa sab hauv putty thiab phab ntsa sab nraud Cov cement dawb ntawm cov putty ua rau ua rau de-powdering. Qee lub tuam txhab cov khoom siv tshwj xeeb muaj qhov chaw ntxuav, uas tuaj yeem ntxuav cov seem hauv lub tshuab, tsis yog tsuas yog xyuas kom meej qhov zoo ntawm cov putty, tab sis kuj siv ib lub tshuab rau ntau lub hom phiaj, thiab yuav ib lub cuab yeej los tsim ntau yam putty.
Vim Li Cas Tsib
Qhov sib txawv ntawm qhov zoo ntawm cov khoom sau kuj yuav ua rau cov hmoov av tawm. Muaj ntau cov khoom sau siv rau hauv cov khoom siv sab hauv thiab sab nraud phab ntsa, tab sis cov ntsiab lus ntawm Ca2CO3 hauv cov hmoov calcium hnyav thiab hmoov talc nyob rau ntau qhov chaw sib txawv, thiab qhov sib txawv ntawm pH kuj yuav ua rau cov hmoov av tawm, xws li cov hauv Chongqing thiab Chengdu. Cov hmoov roj hmab tib yam siv rau cov hmoov putty sab hauv phab ntsa, tab sis cov hmoov talcum thiab hmoov calcium hnyav sib txawv. Hauv Chongqing, nws tsis tshem tawm cov hmoov, tab sis hauv Chengdu, nws tsis tshem tawm cov hmoov.
vim li cas rau
Vim yog huab cua kuj yog ib qho laj thawj rau kev tshem tawm cov hmoov ntawm cov putty ntawm sab hauv thiab sab nraud phab ntsa. Piv txwv li, cov putty ntawm sab hauv thiab sab nraud phab ntsa muaj huab cua qhuav thiab cua zoo hauv qee thaj chaw qhuav hauv sab qaum teb. Muaj huab cua los nag, av noo ntev, cov khoom tsim cov zaj duab xis putty tsis zoo, thiab nws kuj yuav poob hmoov, yog li qee thaj chaw tsim nyog rau cov putty tiv thaiv dej nrog cov hmoov calcium.
vim li cas xya
Cov khoom siv tsis muaj organic xws li grey calcium hmoov thiab dawb cement yog tsis huv thiab muaj ntau cov hmoov ya ob npaug. Cov hmoov calcium grey ntau yam thiab ntau yam dawb cement uas muag hauv khw yog tsis huv, vim tias muaj ntau cov khoom siv tsis muaj organic no siv, thiab cov putty tiv thaiv dej ntawm sab hauv thiab sab nraud phab ntsa yuav tsis muaj hmoov thiab tsis tiv thaiv dej.
vim li cas yim
Thaum lub caij ntuj sov, qhov dej ntawm cov putty ntawm phab ntsa sab nraud tsis txaus, tshwj xeeb tshaj yog nyob rau hauv qhov chaw uas muaj qhov kub thiab txias siab xws li qhov rooj siab thiab qhov rai. Yog tias lub sijhawm teeb tsa thawj zaug ntawm cov hmoov tshauv calcium thiab cement tsis txaus, nws yuav poob dej, thiab yog tias nws tsis tau saib xyuas zoo, nws kuj yuav raug hmoov av hnyav.
Lub sijhawm tshaj tawm: Lub Rau Hli-02-2023