Opanga zokutira adanena kuti zokutira zosungunuka ndi madzi zimatanthawuza zokutira zokonzedwa kuchokera ku emulsions monga zida zopangira filimu, momwe zosungunulira zochokera kumadzi zimasungunuka muzosungunulira organic, ndiyeno, mothandizidwa ndi emulsifiers, utomoniwo umamwazikana m'madzi ndi makina amphamvu. kuyambitsa kupanga emulsions , yotchedwa post-emulsion, ikhoza kuchepetsedwa ndi madzi panthawi yomanga.
Utoto wokonzedwa mwa kuwonjezera kachulukidwe kakang'ono ka emulsion ku utomoni wosungunuka wamadzi sungathe kutchedwa utoto wa latex. Kunena zowona, utoto wopatulira madzi sungathe kutchedwa utoto wa latex, koma umatchedwanso utoto wa latex ndi msonkhano.
Ubwino ndi kuipa kwa zokutira madzi
1. Kugwiritsa ntchito madzi monga zosungunulira kumapulumutsa chuma chambiri. Zowopsa zamoto pakumanga zimapewedwa ndipo kuwonongeka kwa mpweya kumachepa. Pang'ono chabe ya mowa wonyezimira wa ether organic zosungunulira zimagwiritsidwa ntchito, zomwe zimapangitsa kuti chilengedwe chikhale bwino.
2. Kusungunula kwachilengedwe kwa utoto wamba wamadzi kumakhala pakati pa 10% ndi 15%, koma utoto wamakono wa cathodic electrophoretic wachepetsedwa kukhala wosachepera 1.2%, womwe uli ndi zotsatira zoonekeratu pakuchepetsa kuipitsidwa ndi kupulumutsa chuma.
3. Kukhazikika kwa kubalalikana kwa mphamvu yamakina amphamvu ndi osauka. Pamene kuthamanga kwa payipi yotumizira kumasiyanasiyana kwambiri, tinthu tating'onoting'ono timapanikizidwa kukhala tinthu tating'onoting'ono tolimba, zomwe zimapangitsa kuti filimuyo isagwere. Ndikofunikira kuti payipi yonyamulirayo ikhale yabwino ndipo khoma la chitoliro lilibe vuto.
4. Zimawononga kwambiri zida zokutira. Zingwe zosagwirizana ndi dzimbiri kapena zitsulo zosapanga dzimbiri zimafunika, ndipo mtengo wake ndi wokwera kwambiri. Kuwonongeka ndi kusungunuka kwachitsulo kwa payipi yotumizira kungayambitse mvula ndi kuponyedwa kwa tinthu tating'onoting'ono ta filimu yokutira, kotero mipope yachitsulo chosapanga dzimbiri imagwiritsidwanso ntchito.
Kumaliza kugwiritsa ntchito ndi kumanga njira ya opanga utoto
1. Sinthani utoto ku viscosity yoyenera yopopera ndi madzi oyera, ndikuyesa kukhuthala ndi viscometer ya Tu-4. Kukhuthala koyenera kumakhala masekondi 2 mpaka 30. Wopanga utoto ananena kuti ngati palibe viscometer, mutha kugwiritsa ntchito njira yowonera kusonkhezera utoto ndi ndodo yachitsulo, kusonkhezera mpaka kutalika kwa 20 cm ndikuyimitsa kuti muwone.
2. Kuthamanga kwa mpweya kuyenera kuyendetsedwa pa 0.3-0.4 MPa ndi 3-4 kgf / cm2. Ngati kupanikizika kuli kochepa kwambiri, utotowo sudzasungunuka bwino ndipo pamwamba pake padzakhala pitted. Ngati kupanikizika kuli kwakukulu, ndikosavuta kugwa, ndipo nkhungu ya penti ndi yayikulu kwambiri kuti isawononge zida zomwe zimakhudza thanzi la ogwira ntchito yomanga.
3. Mtunda pakati pa mphuno ndi pamwamba pa chinthucho ndi 300-400 mm, ndipo n'zosavuta kugwedeza ngati ili pafupi kwambiri. Ngati ili patali, nkhungu ya penti idzakhala yosafanana ndipo padzakhala pobowola. Ndipo ngati mphuno ili kutali ndi chinthucho, nkhungu ya penti idzafalikira panjira, ndikuwononga. Wopanga utoto ananena kuti mtunda weniweniwo ukhoza kuzindikirika molingana ndi mtundu wa utoto, kukhuthala komanso kuthamanga kwa mpweya.
4. Mfuti yopopera imatha kusunthira mmwamba ndi pansi, kumanzere ndi kumanja, ndipo imatha kuthamanga mofanana pa liwiro la 10-12 m / min. Iyenera kukhala yowongoka ndi kuyang'ana molunjika pamwamba pa chinthucho. Popopera mankhwala kumbali zonse ziwiri za pamwamba pa chinthucho, dzanja lomwe limakoka chiwombankhanga cha mfuti ya spray chiyenera kumasulidwa mwamsanga. Izi zidzachepetsa chifunga cha penti.
Nthawi yotumiza: Jan-18-2024