1. Mavuto ofala mu ufa wa putty
Imauma mwachangu:
Chifukwa chachikulu ndichakuti kuchuluka kwa ufa wa calcium wowonjezeredwa (wochuluka kwambiri, kuchuluka kwa ufa wa calcium wogwiritsidwa ntchito mu fomula ya putty kungachepetsedwe moyenera) kumagwirizana ndi kuchuluka kwa madzi omwe ulusi umasunga, komanso kumagwirizana ndi kuuma kwa khoma.
Kuchotsa ndi kupukuta:
Zimakhudzana ndi kuchuluka kwa madzi omwe amasungidwa, ndipo kukhuthala kochepa kwa cellulose kumakhala kovuta chifukwa cha izi kapena kuchuluka kwa zowonjezerako kumakhala kochepa.
Kuchotsa ufa wa putty wamkati mwa khoma:
Kuchuluka kwa ufa wa calcium wowonjezeredwa (kuchuluka kwa ufa wa calcium mu fomula ya putty ndi kochepa kwambiri kapena kuyera kwa ufa wa calcium wa phulusa ndi kochepa kwambiri, ndipo kuchuluka kwa ufa wa calcium mu fomula ya putty kuyenera kuwonjezeredwa moyenera), ndipo kumagwirizananso ndi kuchuluka kwa cellulose ndi Ubwino wake, womwe umawonetsedwa mu kuchuluka kwa madzi omwe amasungidwa mu chinthucho. Kuchuluka kwa madzi omwe amasungidwa ndi otsika, ndipo ufa wa calcium wa phulusa (calcium oxide mu ufa wa calcium wa phulusa sunasinthidwe kwathunthu kukhala calcium hydroxide kuti ukhale ndi madzi) si nthawi yokwanira, zomwe zimachitika.
Thovu:
Chinyezi chouma cha khoma chikugwirizana ndi kusalala kwake, ndipo chikugwirizananso ndi kapangidwe kake.
Chizindikiro chikuwoneka:
Zimakhudzana ndi cellulose, mphamvu yake yopanga filimu ndi yofooka, ndipo nthawi yomweyo, zonyansa zomwe zili mu cellulose zimakumana pang'ono ndi phulusa la calcium. Ngati vutoli lili lalikulu, ufa wa putty udzawoneka ngati zotsalira za nyemba. Sungayikidwe pakhoma, ndipo ulibe mphamvu yogwirizana nthawi imodzi. Kuphatikiza apo, izi zimachitikanso ndi zinthu monga carboxymethyl zosakanikirana ndi cellulose.
Putty ikauma, zimakhala zosavuta kusweka ndikukhala wachikasu:
Zimagwirizana ndi kuwonjezera ufa wambiri wa phulusa-calcium. Ngati ufa wa phulusa-calcium wochuluka kwambiri, kuuma kwa ufa wa putty kumawonjezeka mukawuma. Ngati ufa wa putty ulibe kusinthasintha, udzakhala wosavuta kusweka, makamaka ukagwiritsidwa ntchito ndi mphamvu zakunja. Zimagwirizananso ndi kuchuluka kwa calcium oxide mu ufa wa phulusa-calcium.
2. N’chifukwa chiyani ufa wa putty umachepa mukawonjezera madzi?
Cellulose imagwiritsidwa ntchito ngati chokhuthala komanso chosungira madzi pa putty. Chifukwa cha thixotropy ya cellulose yokha, kuwonjezera kwa cellulose mu putty powder kumabweretsanso thixotropy mutawonjezera madzi ku putty. thixotropy iyi imayamba chifukwa cha kuwonongeka kwa kapangidwe ka putty powder komwe kamalumikizana momasuka. Kapangidwe kameneka kamayamba pamene kapuma ndipo kamasweka pansi pa kupsinjika. Izi zikutanthauza kuti, kukhuthala kumachepa mukasakaniza, ndipo kukhuthala kumabwereranso mukayima chilili.
3. Kodi chifukwa chiyani putty imakhala yolemera pang'ono poikanda?
Pankhaniyi, kukhuthala kwa cellulose komwe amagwiritsidwa ntchito nthawi zambiri kumakhala kokwera kwambiri. Opanga ena amagwiritsa ntchito cellulose 200,000 popanga putty. Putty yomwe imapangidwa mwanjira imeneyi imakhala ndi kukhuthala kwakukulu, kotero imamveka yolemera ikakanda. Kuchuluka kwa putty komwe kumalimbikitsidwa pakhoma lamkati ndi 3-5 kg, ndipo kukhuthala ndi 80,000-100,000.
4. N’chifukwa chiyani ma cellulose ofanana a viscosity amamveka mosiyana m’nyengo yozizira ndi chilimwe?
Chifukwa cha kutentha kwa chinthucho, kukhuthala kwa putty ndi matope kumachepa pang'onopang'ono kutentha kukakwera. Kutentha kukapitirira kutentha kwa chinthucho, chinthucho chimachotsedwa m'madzi ndikutaya kukhuthala kwake. Kutentha kwa chipinda nthawi zambiri kumakhala kopitilira madigiri 30, zomwe zimasiyana kwambiri ndi kutentha kwa nthawi yozizira, kotero kukhuthala kumakhala kotsika. Akuti nthawi yachilimwe, yesani kusankha chinthu chokhala ndi kukhuthala kwakukulu mukamagwiritsa ntchito chinthucho, kapena kuwonjezera kuchuluka kwa cellulose.
Nthawi yotumizira: Novembala-30-2022