Kupambana ndi kukhazikika kwa zomangamanga zamakina za pulasitala matope ndizomwe zimapangitsa kuti pakhale chitukuko, ndipo cellulose ether, monga chowonjezera cha pulasitala matope, imagwira ntchito yosasinthika.Cellulose etherali ndi makhalidwe a mlingo mkulu posungira madzi ndi katundu kukulunga bwino, ndipo makamaka oyenera umakanikokumangawa pulasitala matope.
Kuchuluka kwa madzi posungira matope
Mlingo wosungira madzi wa pulasitala matope ndi njira yowonjezereka pamene kukhuthala kwa cellulose ether kumachokera ku 50,000 mpaka 100,000, ndipo ndizomwe zimachepa pamene zimachokera ku 100,000 mpaka 200,000, pamene chiwerengero chosungira madzi cha cellulose ether cha kupopera makina chafika. kuposa 93%. Mtondowo ukachulukirachulukira, ndiye kuti matopewo sataya magazi. Pa kupopera mbewu mankhwalawa kuyesera ndi matope kupopera makina, anapeza kuti pamene madzi posungira mlingo wa mapadi efa ndi otsika kuposa 92%, matope sachedwa magazi pambuyo anaikidwa kwa nthawi, ndipo, pa chiyambi cha kupopera mbewu mankhwalawa. , ndizosavuta makamaka kutsekereza chitoliro. Choncho, pokonzekera pulasitala matope oyenera kumanga umakaniko, tiyenera kusankha mapadi ether ndi apamwambakusunga madzimlingo.
Kuyika matope 2h kusasinthika kutayika
Malinga ndi zofunikira za GB/T25181-2010 “Ready Mixed Mortar”, kutayika kosasunthika kwa maola awiri kwa matope wamba opaka pulasitala ndi zosakwana 30%. Kuyesera kosasunthika kwa 2h kunachitika ndi ma viscosities a 50,000, 100,000, 150,000, ndi 200,000. Zitha kuwoneka kuti kukhuthala kwa cellulose ether kumawonjezeka, 2h kusasinthika kutayika kwa matope kumachepa pang'onopang'ono. Komabe, pa kupopera mbewu mankhwalawa, kunapezeka kuti panthawi ya chithandizo cham'tsogolo, chifukwa kukhuthala kwa cellulose ether ndikokwera kwambiri, kugwirizana pakati pa matope ndi trowel kudzakhala kwakukulu, komwe sikungakhale kothandiza kumanga. Choncho, pofuna kuonetsetsa kuti matope sakhazikika ndipo sakuwonongeka, kutsika kwa kukhuthala kwa cellulose ether kumakhala bwino.
Kutsegula kwamatopenthawi
Pambuyo papulasitala matopeimapopera pakhoma, chifukwa cha mayamwidwe amadzi a khoma lapansi ndi kutuluka kwa chinyezi pamtunda wamatope, matope adzapanga mphamvu inayake m'kanthawi kochepa, zomwe zidzakhudza kumangidwanso kotsatira, kotero ndizo zofunika kusanthula nthawi yoyika matope. Mtengo wa viscosity wa cellulose ether uli pakati pa 100,000 mpaka 200,000, nthawi yoyika sikusintha kwambiri, komanso imakhala ndi mgwirizano wina ndi kuchuluka kwa kusungirako madzi, ndiko kunena kuti, kuchuluka kwa kusungirako madzi, nthawi yayitali. nthawi yoyika matope.
Kuchuluka kwa pulasitala matope
Kutayika kwa zida zopopera mbewu kumakhudzana kwambiri ndi kutha kwa matope opaka pulasitala. Pansi pa chiŵerengero chofanana cha madzi ndi zinthu, ndipamwamba kukhuthala kwa cellulose ether, kumachepetsa kuchuluka kwa madzi a matope. Izi zikutanthauza kuti, kuwonjezereka kwa kukhuthala kwa cellulose ether, kumapangitsanso kukana kwa matope komanso kuwonongeka kwakukulu pazida. Choncho, pomanga makina opangira pulasitala matope, kukhuthala kwapansi kwa cellulose ether ndikwabwino.
Sag kukana kwa pulasitala matope
Pambuyo pulasitala matope ndi sprayed pa khoma, ngati sag kukana wamatopesichili bwino, matope amatha kugwa kapena kutsetsereka, zomwe zimakhudza kwambiri kusalala kwa matope, zomwe zingayambitse vuto lalikulu pakumanga kwamtsogolo. Choncho, matope abwino ayenera kukhala ndi thixotropy ndi sag kukana. Kuyeseraku kunapeza kuti pambuyo pa etha ya cellulose yokhala ndi mamasukidwe a 50,000 ndi 100,000 idakhazikitsidwa molunjika, matailosiwo adatsikira pansi, pomwe ether ya cellulose yokhala ndi mamasukidwe a 150,000 ndi 200,000 sanadutse. Ngodyayo idali yokhazikika, ndipo palibe kutsetsereka komwe kudzachitika.
Mphamvu ya pulasitala matope
Pogwiritsa ntchito ma 50,000, 100,000, 150,000, 200,000, ndi 250,000 a cellulose ethers pokonza zitsanzo za pulasitala yamatope kuti amange makina, anapeza kuti ndi kuwonjezeka kwa cellulose ether viscosity, mphamvu ya pulasitala yamatope imatsika. Izi ndichifukwa choti cellulose ether imapanga yankho lapamwamba kwambiri m'madzi, ndipo kuchuluka kwa mpweya wokhazikika wokhazikika udzayambitsidwa panthawi yosakaniza matope. Simenti ikaumitsa, thovu la mpweya limapanga kuchuluka kwa voids, potero kuchepetsa mphamvu ya matope. Choncho, matope opaka pulasitala oyenera kumanga makina ayenera kukwaniritsa mphamvu zomwe zimafunidwa ndi kapangidwe kake, ndipo ether yoyenera ya cellulose iyenera kusankhidwa.
Kulumikizana kwa zinthu zamakina amunthu ndiye chinthu chofunikira kwambiri pakumanga kwamakina, ndipo mtundu wamatope ndiwofunikira kwambiri. Pokhapokha pogwiritsira ntchito cellulose ether yoyenera momwe katundu wa matope angakwaniritse zosowa za kupopera mbewu mankhwalawa.
Nthawi yotumiza: Jul-21-2023