Tasirin rashin daidaituwa a cikin shafi na electrophoretic

Conductivity ne mai matukar muhimmanci tsari siga a cathodic electrophoresis shafi tsari. Yana da kusanci sosai tare da ikon jefawa, kuma suna da tasiri mai yawa akan abubuwan electrophoretic, kwanciyar hankali na ruwan wanka da tasirin shafi. Gabaɗaya magana, mafi girman ɗab'i na wankan fenti na electrophoresis, mafi girman shigar fenti zai kasance; akasin haka, akasin haka. Sabili da haka, ya kamata a kula da ƙayyadaddun motsi na ruwa na tanki a cikin kewayon ƙa'idodin tsari. Don haka a cikin babban tsari na samar da kayan aiki na electrophoretic, ƙaddamarwa na murfin electrophoretic na tasiri?

Conductivity yana nufin adadin conductivity a cikin 1cm tazara na l murabba'in santimita na iyakacin duniya surface, a cikin electrophoretic shafi lokuta a cikin tanki, UF ruwa, iyakacin duniya ruwa da kuma mataki na conductivity amfani a cikin ruwa mai tsabta don bayyana mataki na wahala tare da. da conductivity, amma kuma da amfani fiye da lantarki juriya bayyana. Conductivity shine ma'anar juriya ta musamman.

Ƙimar ƙayyadaddun juriya (Ω - cm) = 6 sau 10 / conductivity, kuma ana auna ƙarfin aiki a cikin μS/cm ko uΩ- cm-1.

A conductivity na electrophoretic Paint tank ruwa yana da alaka da daskararru na tanki ruwa, pH darajar da abun ciki na najasa ions, da dai sauransu Yana daya daga cikin muhimman sigogi sigogi da ya kamata a sarrafa a cikin wani kewayon, girman kewayon dogara. a kan nau'ikan fenti na electrophoretic, da ƙananan ko haɓakar haɓakar ruwa na tanki ba shi da kyau, wanda zai shafi ingancin zanen electrophoretic kai tsaye.

Tasirin conductivity a cikin shafi na electrophoretic:

1. Har zuwa wani matsayi, ƙaddamarwa na iya ƙayyade adadin fenti da za a iya amfani da shi zuwa aikin aikin ta yin iyo zuwa wani matsayi.

2. Ƙarƙashin ƙaddamarwa zai ɗan rage yawan adadin fenti na electrophoresis na cathodic da aka ajiye, akasin haka, haɓakaccen haɓakawa zai ɗan ƙara yawan adadin fenti na electrophoresis na cathodic da aka ajiye.

3. Tank ruwa conductivity ne ma high ko ma low, amma kuma a kan kauri daga cikin electrophoresis Paint film, bayyanar, iyo shigar azzakari cikin farji, da dai sauransu, musamman tare da tanki ruwa conductivity ya karu, iyo shigar azzakari cikin farji ne kuma ya karu, sa'an nan shi ne kuma in mun gwada da gwada. kauri fim kauri.

4. Abnormally high conductivity na slurry ne sau da yawa lalacewa ta hanyar high najasa abun ciki ko low pH, kuma shi ne kuma tare da mahaukaci canje-canje a cikin ingancin da shafi fim, kamar orange kwasfa, pinholes, ko komawa zuwa rushe wani tsanani . ..... da sauran abubuwan da ba su saba ba. Yana buƙatar sarrafa ta ultrafilter tare da tsarin anode.

Gabatarwar da ke sama ita ce ƙaddamarwa akan electrophoresis na cathodic fenti wasu tasirin. Gabaɗaya magana, ya kamata a sarrafa watsin a cikin kewayon 1200 ± 300μs / cm, saboda haɓakar ya dogara da ingancin ruwan da aka lalata kafin electrophoresis da sabunta fenti a cikin tanki na electrophoresis don kiyayewa, don haka lokacin da ƙarfin aiki ya yi girma. , Hakanan za'a iya fitar da maganin ultrafiltration don gyarawa.

Daban-daban na cathodic electrophoresis coatings kuma suna da mafi kyawun kewayon sarrafawa na ruwa na wanka, dangane da yanayin ƙananan canje-canje, kamar ± 100us / cm ba zai shafi aikin fim din ba, don haka kewayon sarrafawa gabaɗaya shine. fadi, ± 30us/cm. rashin daidaituwar ruwa na wanka yana da girma ko ƙasa da kauri na fim ɗin mai rufi, bayyanar da shigar da fim ɗin yana da tasiri, tare da haɓakar ruwa na wanka yana ƙaruwa, shigar da fim ɗin kuma ya fi girma, kauri na fim ɗin. shi ma ya fi kauri. Kauri daga cikin fim zai zama in mun gwada da thicker. Gudanar da ruwa na tanki ya wuce iyakar babba na ƙayyadaddun ƙimar ko babba, ana iya amfani dashi don maye gurbin ruwan ultrafiltration na deionized don rage, alal misali, 300t na ruwa na tanki tare da ruwa mai ɗorewa maimakon 20t na maganin ultrafiltration, za a iya amfani da wutar lantarki ta ruwa. an rage ta ± 100us/cm.