lus nug:
Putty xav tias hnyav
Thaum lub sij hawm tsim kho ntawm putty, qee cov neeg yuav ntsib qhov teeb meem uas txhais tes xav tias hnyav. Qhov laj thawj tshwj xeeb yog dab tsi? Yuav txhim kho li cas?
Feem ntau yog vim li cas vim li cas putty xav tias hnyav yog:
1. Kev siv tsis raug ntawm cov qauv viscosity ntawm cellulose ether:
Nyob rau hauv cov ntaub ntawv no, lub viscosity ntawm cellulose ether feem ntau yog siab dhau lawm, thiab cov putty ua yuav hnov hnyav thaum lub sij hawm scraping txheej txheem;
Lwm qhov laj thawj yog tias thaum lub sij hawm tsim kho lub caij ntuj sov, kev siv hydroxypropyl methylcellulose ether nrog kev kub siab tsis zoo yuav ua rau lub putty poob viscosity, uas yuav cuam tshuam rau kev tsim kho.
2. Tsis ncaj ncees lawm piv los yog fineness ntawm hmoov:
Feem ntau, muaj ntau cov ntaub ntawv inorganic gelling, los yog lub fineness ntawm cov muab tub lim xaiv yog zoo heev, uas yog feem ntau ua rau cov riam;
Nws tseem muaj peev xwm hais tias txhawm rau txo cov nqi, tsis muaj lossis tsawg dua cov khoom ntxiv los txhim kho kev xav tau ntxiv, xws li cov hmoov txhuv nplej siab ethers thiab thixotropic lubricants.
Txoj kev txhim kho 1
Tsim nyog raw khoom piv thiab fineness xaiv
Lub fineness ntawm tag nrho cov khoom raw tuaj yeem tswj tau ntawm 150-200 mesh, thiab qhov zoo ntawm cov muab tub lim feem ntau yog 325 mesh, tsis zoo heev;
Tus nqi ntawm cov hmoov polyvinyl cawv yuav tsum tsis pub tshaj 6%;
Nws kuj tseem yuav tsum tau kawm kom txo qis cov khoom siv hauv cov khoom siv cementitious. Feem ntau, nws txaus los tswj cov cement ntawm 28% -32%, thiab siv cov khoom siv ntxiv los txhim kho nws qhov kev ua tau zoo.
Txoj kev txhim kho 2
Xaiv txoj cai cellulose ether
Feem ntau, peb pom zoo kom hydroxyethyl methyl cellulose ether nrog kev ua tau zoo dua, uas muaj qhov zoo ntawm qhov kub thiab txias thiab tuaj yeem ua tau zoo rau kev tsim kho lub caij ntuj sov thiab txo cov nqi pauv lub caij ntuj no thiab lub caij ntuj sov;
Qhov tseem ceeb yog xaiv cov cellulose ether nrog rau qhov tsim nyog viscosity. Feem ntau, cellulose ether nrog viscosity ntawm 80,000 mus rau 100,000 yog txaus rau putty hmoov, tab sis tus nqi ntawm cellulose ether ntxiv yuav tsum tau txiav txim los ntawm tsim nyog kev sim!
Txoj kev txhim kho 3
Ntxiv cov additives los txhim kho tes
Thaum kawg, peb tuaj yeem txiav txim siab ntxiv cov hmoov txhuv nplej siab ether lossis thixotropic lubricant (bentonite) los txhim kho qhov kev xav ntawm cov tshuaj khib nyiab;
Nco ntsoov: kev sib xyaw ntawm cov qauv kev tshawb fawb yog tus yuam sij los daws qhov teeb meem!
Post lub sij hawm: Feb-10-2023