Yintoni ekufuneka yenziwe xa kukho imvula kulwelo lwepeyinti ye-electrophoretic?
Ngokubanzi, izinto eziphambili ezichaphazela imvula yepeyinti ye-electrophoretic zezi:
1.Iiyoni zokungcola
Ukungena kwee-ion zokungcola ezilinganayo okanye ezingafaniyo zibophelelekile ukuba ziphendule nge-resin ehlawulisiweyo yepeyinti ukwenza ezinye iikhompleksi okanye i-precipitates, kwaye ukubunjwa kwezi zinto kutshabalalisa iimpawu zokuqala ze-electrophoretic kunye nokuzinza kwepeyinti.
Imithombo ye-ion yokungcola imi ngolu hlobo lulandelayo:
(1) Iiyoni zokungacoceki ezifumaneka kwipeyinti ngokwayo;
(2) Ukungcola okuziswe xa kulungiswa ulwelo lwepeyinti ye-electrophoretic;
(3) Ukungcola okuziswe kukungagqitywanga kokuhlanjululwa kwamanzi kwangaphambili konyango;
(4) Ukungcola okuziswe ngamanzi angacocekanga ngexesha lokuhlanjululwa kwamanzi kwangaphambili;
(5) Ii-ion zokungcola ezenziwe ngokuchithwa kwefilimu yephosphate;
(6) Ii-ion zokungcola ezenziwe yi-anode echithwayo.
Ukususela kolu hlalutyo lungentla, kunokubonwa ukuba umgangatho wokulungiswa kwangaphambili kwengubo kufuneka ulawulwe ngokungqongqo. Oku akuyimfuneko kuphela ukuphucula umgangatho wemveliso yokugqoka, kodwa kubaluleke kakhulu ukugcina ukuzinza kwesisombululo sepeyinti ye-electrophoretic. Ngexesha elifanayo, kuhlalutyo olungentla lunokubonakaliswaukubaumgangatho wamanzi acocekileyo kunye nokukhethwa kwesisombululo se-phosphating (ukuhambelana) kubaluleke kangakanani.
2. Isinyibilikisi
Ukuze wenze i-electrophoretic coating ine-dispersion elungileyo kunye ne-solubility yamanzi, ipeyinti yokuqala ihlala iqulethe inxalenye ethile ye-solvents eziphilayo. Kwimveliso eqhelekileyo, ukusetyenziswa kwee-solvents eziphilayo kunye nokuzaliswa komsebenzi wepeyinti kwaye ufumane ukuzaliswa ngexesha elifanelekileyo. Kodwa ukuba imveliso ayiqhelekanga okanye iqondo lokushisa liphezulu kakhulu, okukhokelela ekusetyenzisweni kwe-solvent (i-volatilization) ikhawuleza kakhulu kwaye ayinakongezwa ngexesha elifanelekileyo, ukwenzela ukuba umxholo wayo uncitshiswe kumda ongaphantsi kokulandelayo, umsebenzi yepeyinti nayo iya kutshintsha, eyenza ifilimu ibe yincinci, kwaye, kwiimeko ezinzulu, iya kwenza kwakhona ipeyinti kwi-resin cohesion okanye imvula. Ngoko ke, kwinkqubo yokulawula ulwelo lwetanki, abasebenzi bolawulo kufuneka bahlawule ingqalelo ekutshintsheni umxholo we-solvent kwi-electrophoretic paint liquid naliphi na ixesha, kwaye ukuba kuyimfuneko, hlalutya umxholo we-solvent kwaye wenze inani elikhawulezayo le-solvent ngexesha.
3. Ubushushu
Iipeyinti ezahlukeneyo zikwanalo noluhlu oluguquguqukayo lobushushu. Ukunyuka kwamaqondo obushushu okanye ukuncipha kuya kukhawuleza okanye kunciphise inkqubo ye-electrodeposition, ukwenzela ukuba ifilimu yokugqoka ibe nkulu okanye ibe ncinane. Ukuba ubushushu bepeyinti buphezulu kakhulu, i-solvent volatilization ikhawuleza kakhulu, kulula ukubangela ukudibanisa kwepeyinti kunye nemvula. Ukuze wenze ubushushu bepeyinti buhlala kwisihlobo "sesimo sokushisa rhoqo", kufuneka sixhotywe ngesixhobo se-thermostat.
4.Sumxholo olid
Umxholo oqinileyo wepeyinti awuchaphazeli kuphela umgangatho wokugquma, kodwa uchaphazela ukuzinza kwepeyinti into. Ukuba umxholo oqinileyo wepeyinti uphantsi kakhulu, i-viscosity iyancitshiswa, eyenza imvula yepeyinti. Ngokuqinisekileyo, i-solids ephezulu kakhulu ayinqweneleki, kuba iphezulu kakhulu, ipeyinti yepeyinti emva kokungena kokubhukuda inyuka, ilahleko yokunyuka, ukunciphisa izinga lokusetyenziswa kwepeyinti, ukwenzela ukuba ixabiso linyuke.
5. Ukuvuselela ukujikeleza
Kwinkqubo yokuvelisa, abasebenzi bolawulo kufuneka bahlale beqwalasela ukuba ukujikeleza kwepeyinti ye-electrophoretic peyinti ilungile okanye ayikho, nokuba uxinzelelo lwezinye izixhobo (ezifana nezihlungi, i-ultrafilters) ziqhelekileyo okanye akunjalo. Qinisekisa ukuba ipeyinti ijikeleza amaxesha ama-4-6 ngeyure, kwaye izinga lokuhamba kwepeyinti ezantsi limalunga namaxesha ama-2 okuhamba kwepeyinti kumphezulu, kwaye musa ukwenza itanki ye-electrophoresis ibe yikona efileyo. ukuxhokonxa. Ungayeki ukuvuselela ngaphandle kokuba kuphantsi kweemeko ezikhethekileyo.