1. Mavuto omwe amapezeka mu putty powder
Imauma msanga. Izi makamaka chifukwa kuchuluka kwa phulusa la phulusa la ufa wowonjezera (lalikulu kwambiri, kuchuluka kwa phulusa la phulusa la phulusa lomwe limagwiritsidwa ntchito mu ndondomeko ya putty likhoza kuchepetsedwa moyenerera) likugwirizana ndi kuchuluka kwa madzi osungiramo ulusi, komanso kumagwirizana ndi kuuma. cha khoma.
Peel ndi roll. Izi zikugwirizana ndi kuchuluka kwa kusungirako madzi, zomwe zimakhala zosavuta kuchitika pamene kukhuthala kwa cellulose kuli kochepa kapena kuchuluka kwa kuwonjezera kumakhala kochepa.
De-ufa wa mkati khoma putty ufa. Izi zikugwirizana ndi kuchuluka kwa phulusa la ufa wa calcium wowonjezera (kuchuluka kwa phulusa la phulusa la phulusa mu ndondomeko ya putty ndilochepa kwambiri kapena chiyero cha ufa wa phulusa la calcium ndi chochepa kwambiri, ndipo kuchuluka kwa phulusa la phulusa la phulusa mu ufa wa putty uyenera ziwonjezeke moyenera), komanso zimagwirizana ndi kuwonjezera kwa cellulose. Pali mgwirizano pakati pa kuchuluka ndi khalidwe, zomwe zimawonekera mu chiwerengero cha kusunga madzi kwa mankhwala. Madzi osungira madzi ndi otsika, ndipo phulusa la phulusa la calcium (calcium oxide mu phulusa la calcium ufa silinatembenuzidwe mokwanira ku calcium hydroxide kwa hydration) nthawi sikwanira, zomwe zimayambitsa.
kumveka. Izi zikugwirizana ndi chinyezi chowuma ndi kuphwanyidwa kwa khoma, komanso zimagwirizana ndi zomangamanga.
Ma pinpoints amawonekera. Izi zimagwirizana ndi cellulose, yomwe ili ndi mawonekedwe osapanga mafilimu. Nthawi yomweyo, zonyansa za cellulose zimachita pang'ono ndi phulusa la calcium. Ngati zomwe zimachitika kwambiri, ufa wa putty udzawoneka ngati zotsalira za nyemba. Sichikhoza kuikidwa pakhoma, ndipo ilibe mphamvu yogwirizana nthawi yomweyo. Kuphatikiza apo, izi zimachitikanso ndi zinthu monga carboxymethyl wosakanizidwa ndi cellulose.
Ma craters ndi ma pinholes amawonekera. Izi mwachiwonekere zikugwirizana ndi kuthamanga kwa madzi pamwamba pa hydroxypropyl methylcellulose yankho lamadzi. Kuvuta kwa madzi a hydroxyethyl aqueous solution sikuwonekeratu. Zingakhale bwino kuchita chithandizo chomaliza.
Putty ikauma, imakhala yosavuta kusweka ndikusintha chikasu. Izi zikugwirizana ndi kuwonjezera kwa ufa wambiri wa phulusa-calcium. Ngati kuchuluka kwa phulusa-calcium ufa kuwonjezeredwa kwambiri, kuuma kwa ufa wa putty kumawonjezeka mutatha kuyanika. Ngati ufa wa putty ulibe kusinthasintha, umasweka mosavuta, makamaka pamene umakhala ndi mphamvu yakunja. Zimagwirizananso ndi kuchuluka kwa calcium oxide mu phulusa la ufa wa calcium.
2. Chifukwa chiyani ufa wa putty umakhala wochepa thupi ukathira madzi?
Ma cellulose amagwiritsidwa ntchito ngati thickener komanso kusunga madzi mu putty. Chifukwa cha thixotropy ya cellulose yokha, kuwonjezera kwa cellulose mu putty powder kumapangitsanso thixotropy pambuyo pa madzi kuwonjezeredwa ku putty. thixotropy uyu amayamba chifukwa cha kuwonongedwa kwa mwachisawawa ophatikizana dongosolo la zigawo zikuluzikulu mu putty ufa. Kapangidwe kameneka kamakhala kakupumula ndipo kamasweka ndi kupsinjika maganizo. Ndiko kuti, mamasukidwe akayendedwe amachepetsa pansi kusonkhezera, ndi mamasukidwe akayendedwe akuchira pamene ayimirira.
3. Nchifukwa chiyani putty imakhala yolemetsa kwambiri pakupukuta?
Pamenepa, kukhuthala kwa cellulose komwe kumagwiritsidwa ntchito nthawi zambiri ndikokwera kwambiri. Opanga ena amagwiritsa ntchito cellulose 200,000 kupanga putty. Putty yomwe imapangidwa motere imakhala ndi kukhuthala kwakukulu, kotero imamveka yolemetsa pamene ikukanda. Kuchuluka kwa putty kumakoma amkati ndi 3-5 kg, ndipo mamasukidwe akayendedwe ndi 80,000-100,000.
4. Chifukwa chiyani ma viscosity cellulose amamva mosiyana m'nyengo yozizira ndi chilimwe?
Chifukwa cha kutentha kwa zinthuzo, kukhuthala kwa putty ndi matope kumachepa pang'onopang'ono ndi kuwonjezeka kwa kutentha. Pamene kutentha kumaposa kutentha kwa gel osakaniza mankhwala, mankhwala adzakhala precipitated kuchokera madzi ndi kutaya mamasukidwe akayendedwe ake. Kutentha kwa chipinda m'chilimwe nthawi zambiri kumakhala pamwamba pa madigiri 30, komwe kumakhala kosiyana kwambiri ndi kutentha m'nyengo yozizira, kotero kukhuthala kumakhala kotsika. Ndibwino kuti musankhe mankhwala okhala ndi viscosity yapamwamba mukamagwiritsa ntchito mankhwalawa m'chilimwe, kapena kuwonjezera kuchuluka kwa cellulose, ndikusankha mankhwala omwe ali ndi kutentha kwa gel osakaniza. Yesani kugwiritsa ntchito methyl cellulose m'chilimwe. Kutentha kwa gel osakaniza kuli pakati pa Pafupifupi madigiri 55, ngati kutentha kuli kokwera pang'ono, kukhuthala kwake kudzakhudzidwa kwambiri.
Nthawi yotumiza: Mar-22-2023