Cov av qhuav yog ib yam khoom siv ua vaj tse uas siv tau ntau yam thiab nrov heev rau ntau yam kev siv, txij li kev tso cib thiab kev tso pob zeb mus rau kev tso vuas vov thiab veneer. Txawm li cas los xij, qhov ruaj khov ntawm cov av qhuav tuaj yeem ua rau ntau tus neeg ua vaj tse thiab cov tswv tsev txhawj xeeb, vim nws yooj yim tawg, tshwj xeeb tshaj yog thaum muaj huab cua hnyav.
Zoo hmoo, muaj ntau txoj kev daws teeb meem los txhim kho qhov ruaj khov thiab tawg tsis kam ntawm cov mortar qhuav, ib qho ntawm cov kev daws teeb meem zoo tshaj plaws yog kev siv hydroxypropyl methylcellulose (HPMC).
HPMCs yog dab tsi?
HPMC yog ib qho polymer tsim los ntawm kev hloov kho tshuaj ntawm cov cellulose ntuj. Nws feem ntau siv rau hauv kev lag luam kev tsim kho ua tus binder thiab thickener hauv cov khoom sib xyaw qhuav xws li cov mortar qhuav.
HPMC yaj tau yooj yim hauv dej thiab ua rau nws zoo li gel thaum sib xyaw nrog lwm cov khoom xyaw. Nws kuj tsis muaj tshuaj lom, tsis ua rau khaus thiab lwj tau, ua rau nws yog cov khoom siv hauv tsev uas muaj kev nyab xeeb thiab zoo rau ib puag ncig.
HPMC ua li cas thiaj txhim kho qhov ruaj khov thiab tiv taus tawg ntawm cov mortar qhuav?
1. Txhim kho kev khaws dej
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm HPMC hauv cov mortars qhuav yog nws lub peev xwm los ua kom cov dej khaws cia ntau dua. Thaum sib xyaw nrog dej, HPMC tsim cov tshuaj zoo li gel uas pab ua kom cov khoom sib xyaw noo ntev dua. Qhov no ua rau muaj cov khoom sib xyaw zoo sib xws thiab sib xws uas tsis tshua muaj kev tawg lossis tawg thaum muaj kev nyuaj siab.
Kev khaws dej kom zoo dua kuj pab txhim kho qhov ua haujlwm ntawm cov mortar, ua rau nws yooj yim dua rau kev siv thiab ua rau nws du thiab sib npaug zoo dua.
2. Txhim kho kev sib txuas
Lwm qhov zoo ntawm HPMC hauv cov mortar qhuav yog nws lub peev xwm los txhim kho kev nplaum. HPMC ua haujlwm ua tus binder, pab khi cov khoom sib xyaw ua ke thiab lo rau ntawm qhov chaw uas nws siv.
Qhov no tseem ceeb heev rau cov ntawv thov uas siv cov mortar los tuav cov vuas, cib lossis cov blocks rau hauv qhov chaw vim nws pab tiv thaiv kev txav mus los lossis kev hloov pauv.
3. Txhim kho kev ua haujlwm tau zoo
Ntxiv rau kev txhim kho kev khaws cia dej thiab kev nplaum, HPMC kuj tseem tuaj yeem txhim kho qhov ua haujlwm tau zoo ntawm cov mortars qhuav. Los ntawm kev ntxiv HPMC rau hauv qhov sib tov, cov neeg cog lus thiab cov neeg ua vaj tse tuaj yeem ua tiav qhov sib tov sib xws thiab sib xws uas yooj yim dua rau kev thov thiab duab.
Qhov no pab txo qhov kev pheej hmoo ntawm kev tawg lossis chipping thaum lub sijhawm thov thiab txhim kho qhov tsos kawg ntawm cov khoom tiav.
4. Ntxiv Zog
Thaum kawg, HPMC tau pom tias ua rau lub zog thiab kev ruaj khov ntawm cov mortars qhuav nce ntxiv. Qhov no yog vim muaj kev khaws cia dej thiab kev nplaum zoo dua, uas ua rau muaj kev sib xyaw ruaj khov dua thiab muaj kev nyab xeeb dua.
Los ntawm kev siv HPMC hauv cov av qhuav, cov neeg tsim kho tuaj yeem tsim cov khoom lag luam txhim khu kev qha dua, ruaj khov uas tsis tshua muaj kev tawg lossis tawg dhau sijhawm.
xaus lus
Xaus lus, HPMC yog ib qho khoom siv zoo heev thiab siv tau zoo los txhim kho qhov ruaj khov thiab tiv taus kev tawg ntawm cov pob zeb qhuav. Nws txhim kho kev khaws dej, kev nplaum, kev ua haujlwm tau zoo thiab lub zog, ua rau nws zoo tagnrho rau cov neeg cog lus thiab cov neeg ua vaj tse uas tab tom nrhiav kev tsim cov khoom lag luam txhim khu kev qha thiab siv tau ntev.
Los ntawm kev siv HPMC hauv cov av nplaum qhuav, cov neeg ua vaj tse tuaj yeem ua kom lawv cov haujlwm ruaj khov, nrog rau qhov tiav zoo sib xws, txawm tias uas yuav tsis tawg lossis tawg dhau sijhawm. Yog li lub sijhawm tom ntej koj ua haujlwm rau ib qho project tsim kho, xav txog kev siv HPMC los txhim kho qhov zoo thiab ruaj khov ntawm koj cov av nplaum qhuav.
Lub sijhawm tshaj tawm: Lub Yim Hli-15-2023