Yini okufanele yenziwe lapho kunemvula ku-electrophoretic paint liquid?
Ngokuvamile, izici eziyinhloko ezithinta imvula kapende we-electrophoretic yilezi:
1.Ama-ion angcolile
Ukufakwa kwama-ion wokungcola alinganayo noma ahlukahlukene kuzomele kusabelane neresin eshajiwe kapende ukuze kwakheke ezinye izinto eziyinkimbinkimbi noma imvula, futhi ukwakheka kwalezi zinto kucekela phansi izici zokuqala ze-electrophoretic nokuzinza kopende.
Imithombo ye-ion yokungcola imi kanje:
(1) Ama-ion angcolile atholakala kupende ngokwawo;
(2) Ukungcola okulethwe lapho kulungiswa uketshezi lukapende lwe-electrophoretic;
(3) Ukungcola okulethwa ukuhlanzwa kwamanzi okungaphelele ngaphambi kokwelashwa;
(4) Ukungcola okulethwa ngamanzi angcolile ngesikhathi sokugeza amanzi ngaphambi kokugeza;
(5) Ama-ion angcolile akhiqizwa ukuchithwa kwefilimu ye-phosphate;
(6) Ama-ion angcolile akhiqizwa i-anode encibilika.
Kusukela ekuhlaziyweni okungenhla, kungabonakala ukuthi ikhwalithi ye-pretreatment of coating kufanele ilawulwe ngokuqinile. Lokhu akudingekile kuphela ukuthuthukisa ikhwalithi yomkhiqizo womkhiqizo, kodwa futhi kubaluleke kakhulu ukugcina ukuzinza kwesisombululo sepende ye-electrophoretic. Ngesikhathi esifanayo, kusukela ekuhlaziyweni okungenhla kungabuye kuboniswelokhoizinga lamanzi ahlanzekile kanye nokukhetha kwesisombululo se-phosphating (ukufanisa) kubaluleke kangakanani.
2. Ncibilikisa
Ukuze wenze i-electrophoretic coating ibe nokuhlakazeka okuhle nokuncibilika kwamanzi, upende wangempela uvame ukuqukatha ingxenye ethile yezinyibilikisi eziphilayo. Ekukhiqizeni okuvamile, ukusetshenziswa kwe-solvents ephilayo ngokugcwaliswa kabusha komsebenzi wepende futhi uthole ukugcwaliswa okufika ngesikhathi. Kodwa uma ukukhiqizwa kungeyona into evamile noma izinga lokushisa liphezulu kakhulu, okuholela ekusetshenzisweni kwe-solvent (volatilization) kushesha kakhulu futhi akukwazi ukungezwa ngesikhathi, ukuze okuqukethwe kwayo kuncishiswe kumkhawulo ophansi walokhu okulandelayo, umsebenzi upende uzophinde ushintshe, okwenza ifilimu ibe mncane, futhi, ezimweni ezimbi kakhulu, izokwenza futhi upende ekuhlanganiseni kwe-resin noma imvula. Ngakho-ke, ohlelweni lokulawulwa koketshezi lwethangi, izisebenzi zokuphatha kufanele zinake ukuguqulwa kokuqukethwe kwe-solvent ku-electrophoretic paint liquid nganoma yisiphi isikhathi, futhi uma kunesidingo, hlaziya okuqukethwe kwe-solvent futhi yenze inani elisheshayo le-solvent ngesikhathi.
3. Izinga lokushisa
Opende abahlukahlukene nabo banezinga lokushisa eliguquguqukayo. Ukwenyuka noma ukwehla kwezinga lokushisa kuzosheshisa noma kubambezele inqubo ye-electrodeposition, ukuze ifilimu yokumboza ibe mkhulu noma ibe mncane. Uma izinga lokushisa likapende liphezulu kakhulu, ukushibilika kwe-solvent kuyashesha kakhulu, kulula ukubangela ukuhlangana kopende kanye nemvula. Ukuze wenze izinga lokushisa lopende lihlale lisesimweni "sokushisa okungashintshi", kudingeka lifakwe idivayisi ye-thermostat.
4.Sokuqukethwe kwe-olid
Okuqukethwe okuqinile kopende akuthinti kuphela ikhwalithi yokugqoka, kodwa futhi kuthinta ukuzinza kwepende isici. Uma okuqukethwe okuqinile kopende kuphansi kakhulu, i-viscosity iyancipha, okwenza kube nemvula yopende. Yiqiniso, izinto eziqinile eziphakeme kakhulu azifiseleki, ngoba ziphakeme kakhulu, ucezu lwepende emva kokubhukuda kokubhukuda luyanda, ukulahlekelwa kokunyuka, ukunciphisa izinga lokusebenzisa upende, ukuze izindleko zikhuphuke.
5. Ukujikeleza ukunyakazisa
Enqubweni yokukhiqiza, izisebenzi zokuphatha kufanele zihlale zinake ukuthi ukujikeleza kopende lwe-electrophoretic kuhle noma cha, nokuthi ukucindezela kwezinye izinsimbi (ezifana nezihlungi, ama-ultrafilters) kujwayelekile noma cha. Qinisekisa ukuthi upende uzungeza izikhathi ezingu-4-6 ngehora, futhi izinga lokugeleza kopende ngaphansi cishe izikhathi ezi-2 zezinga lokugeleza likapende ngaphezulu, futhi ungalenzi ithangi le-electrophoresis libe ikhona elifile ukunyakazisa. Ungayeki ukunyakazisa ngaphandle uma kunezimo ezikhethekile.