MHEC, kapena methylhydroxyethylcellulose, ndiwowonjezera wofunikira wamankhwala omwe amagwiritsidwa ntchito kwambiri pomanga. Makamaka mu zokutira ndi kumaliza zinthu monga putty ndi pulasitala, udindo wa MHEC ndi wovuta kwambiri.
1. Kuchita kwa MHEC mu putty
Putty ndi chinthu chomwe chimagwiritsidwa ntchito kudzaza makoma osalingana kapena malo ena. Iyenera kukhala ndi ntchito yabwino yomanga, mphamvu ndi kulimba. Kugwiritsa ntchito kwa MHEC mu putty kumaphatikizapo izi:
a. Makulidwe zotsatira
MHEC imatha kukulitsa kukhuthala kwa putty ndikuwongolera magwiridwe antchito ake komanso ntchito yomanga. Kukhuthala kumeneku kumatha kuthandizira kukhazikika kwa putty, kupangitsa kuti ikhale yosavuta kugwiritsa ntchito ndikusunga makulidwe abwino pamalo oyimirira popanda kugwa. Kukhuthala koyenera kumathanso kukonza magwiridwe antchito a anti-sag a putty, kupangitsa kuti zomangamanga zikhale zosavuta.
b. Kusunga madzi
MHEC ili ndi kusungirako madzi kwabwino, zomwe ndizofunikira kwambiri pakuchita kwa putty. Putty imatenga nthawi kuti iume ndi kuumitsa pambuyo pa ntchito. Ngati chinyezi chitayika mofulumira kwambiri, chimapangitsa kuti pamwamba pa putty kusweka kapena kukhala powdery. MHEC ikhoza kupanga filimu yosungira madzi mu putty ndikuchepetsa kuthamanga kwa madzi, potero kuonetsetsa kuyanika kwa yunifolomu ya putty, kuchepetsa mapangidwe a ming'alu, ndikuwongolera ubwino wa mankhwala omalizidwa.
c. Wonjezerani kumamatira
MHEC imatha kupititsa patsogolo kumamatira kwa putty, ndikupangitsa kuti ikhale yomatira pamagawo osiyanasiyana. Izi ndizofunikira kuti pakhale kukhazikika komanso kukhazikika kwa putty layer. Kumamatira bwino sikungolepheretsa putty kugwa, komanso kumawonjezera kukana kwa putty ndikukulitsa moyo wake wautumiki.
2. Kuchita kwa MHEC mu gypsum
Gypsum ndi chinthu chomangira chomwe chimagwiritsidwa ntchito kwambiri chokhala ndi mphamvu yabwino yolimbana ndi moto komanso zokongoletsa. Udindo wa MHEC mu gypsum sungathe kunyalanyazidwa. Makhalidwe ake akuluakulu ndi awa:
a. Sinthani magwiridwe antchito
MHEC imathandizira kukonza kwa pulasitala, kuti ikhale yosavuta kusakaniza ndi kufalikira. Mwa kusintha kukhuthala ndi kusasinthasintha kwa gypsum slurry, MHEC ingathandize ogwira ntchito yomanga kuwongolera bwino kuchuluka ndi makulidwe a gypsum omwe amagwiritsidwa ntchito. Izi ndizopindulitsa kwambiri popititsa patsogolo ntchito yomanga komanso kukhazikika kwazinthu zomalizidwa.
b. Limbikitsani kukana kwa crack
Plaster imakonda kung'amba ming'alu panthawi yowumitsa, zomwe zingakhudze maonekedwe ake ndi ntchito yake. Ntchito yosungira madzi ya MHEC imatha kuchepetsa kuthamanga kwa madzi mu gypsum, kuchepetsa mapangidwe a kupsinjika kwamkati, potero kuchepetsa kuchepa kwa ming'alu. Kuphatikiza apo, MHEC imatha kusintha kusinthasintha kwa pulasitala, ndikupangitsa kuti ikhale yolimbana ndi kukakamizidwa kwakunja.
c. Konzani kusalala pamwamba
Kugwiritsiridwa ntchito kwa MHEC mu gypsum kumathanso kuwongolera kusalala kwake ndikupangitsa mawonekedwe a gypsum kukhala okongola kwambiri. Malo osalala sikuti amangokhala ndi zokongoletsera zabwino, komanso amapereka maziko abwino a zomatira utoto, zomwe zimathandizira njira zopenta.
Monga chowonjezera chofunikira chomangira, MHEC imawonetsa zinthu zambiri zapamwamba zikagwiritsidwa ntchito mu putty ndi gypsum. Sizingangowonjezera ntchito yomanga, kukonza zomatira ndi kusunga madzi kwa zinthu, komanso kupititsa patsogolo kwambiri kukana kwa mng'alu ndi mtundu wa zinthu zomalizidwa. Zinthuzi zapangitsa kuti MHEC igwiritsidwe ntchito kwambiri pantchito yomanga, kukhala gawo lofunikira la zinthu monga putty ndi pulasitala. M'tsogolomu, ndi chitukuko cha teknoloji yomanga ndi kukonza zofunikira zogwirira ntchito, mwayi wogwiritsa ntchito MHEC udzakhala waukulu.
Nthawi yotumiza: Aug-01-2024