1. Mavuto omwe amapezeka mu putty powder
Kuyanika mwachangu: Izi zimachitika makamaka chifukwa cha kuchuluka kwa ufa wa laimu wowonjezeredwa (ochuluka kwambiri, kuchuluka kwa ufa wa laimu wogwiritsidwa ntchito mu putty formula akhoza kuchepetsedwa moyenerera) kumakhudzana ndi kuchuluka kwa madzi a ulusi, komanso kumakhalanso zokhudzana ndi kuuma kwa 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 mwa khoma putty ufa: Izi zikugwirizana ndi kuchuluka kwa phulusa kashiamu ufa wowonjezeredwa (kuchuluka kwa phulusa la phulusa la ufa mu putty formula ndi lochepa kwambiri kapena chiyero cha phulusa la ufa wa calcium ndi chochepa kwambiri, ndi kuchuluka kwa phulusa. ufa wa calcium mu ufa wa putty ufa uyenera kuwonjezeka moyenerera) Pa nthawi yomweyo, zimagwirizananso ndi kuchuluka kwa cellulose ndi khalidwe la cellulose, zomwe zimawonekera mu chiwerengero cha kusunga madzi kwa mankhwala. Madzi osungira madzi ndi otsika, ndipo nthawi ya phulusa la ufa wa calcium (calcium oxide mu phulusa la ufa wa calcium sichimatembenuzidwa mokwanira kukhala calcium hydroxide) sikokwanira. , chifukwa.
Kutuluka matuza: Izi zimagwirizana ndi chinyezi chowuma komanso kusanja 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.
Maonekedwe a ma craters ndi ma pinholes: Izi mwachiwonekere zikugwirizana ndi kugwedezeka kwa madzi kwa hydroxypropyl methylcellulose yankho lamadzi. Kuvuta kwa madzi a hydroxyethyl aqueous solution sikuwonekeratu. Zingakhale bwino kuchita chithandizo chomaliza.
Pambuyo pa putty youma, zimakhala zosavuta kusweka ndi kutembenukira chikasu: izi zimagwirizana ndi kuwonjezera kwa ufa wambiri wa phulusa la calcium. Ngati kuchuluka kwa phulusa la phulusa la calcium ndi lochuluka, kuuma kwa ufa wa putty kumawonjezeka pambuyo poyanika. Kuuma kokha popanda kusinthasintha kumang'amba mosavuta, makamaka Ndi kosavuta kusweka pamene akugonjetsedwa 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 ufa wa putty kumabweretsanso thixotropy pambuyo powonjezera madzi 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, kutentha kumakhala kokwera pang'ono, ndipo kukhuthala kwake kudzakhudzidwa kwambiri.
Nthawi yotumiza: Apr-13-2023