Mphamvu ya conductivity mu zokutira electrophoretic

Conductivity ndi gawo lofunikira kwambiri pakupanga kwa cathodic electrophoresis coating process. Zili ndi ubale wapamtima kwambiri ndi mphamvu zoponyera, ndipo zimakhala ndi mphamvu zambiri pamagetsi a electrophoretic, kukhazikika kwa madzi osamba komanso kutsekemera. Nthawi zambiri, kukweza kwa ma electrophoresis utoto wosambira kumapangitsa kuti utoto ukhale wapamwamba kwambiri; m'malo mwake, ndi zosiyana. Choncho, ma conductivity a thanki madzi ayenera mosamalitsa ankalamulira mu osiyanasiyana ndondomeko malamulo. Kotero mukupanga kwakukulu kwa zokutira kwa electrophoretic, kupangika kwa zokutira kwa electrophoretic kwa chikoka?

Conductivity imatanthawuza kuchuluka kwa ma conductivity omwe ali mumtunda wa 1cm wa l square centimita pamtengo pamwamba, muzophimba za electrophoretic mu thanki, madzi a UF, madzi amadzimadzi ndi kuchuluka kwa ma conductivity omwe amagwiritsidwa ntchito m'madzi oyera kuti afotokoze kuchuluka kwa zovuta ndi ma conductivity, komanso zothandiza kuposa kukana magetsi kufotokoza. Conductivity ndi kubwereza kwa kukana kwapadera.

Kukaniza kwapadera (Ω - cm) = 6 nthawi 10 / conductivity, ndipo conductivity imayesedwa mu μS/cm kapena uΩ-cm-1.

The madutsidwe wa electrophoretic utoto thanki madzi okhudzana ndi zolimba za thanki madzi, pH mtengo ndi zili zonyansa ayoni, etc. Ndi imodzi mwa magawo zofunika ndondomeko ayenera kulamulidwa mkati osiyanasiyana osiyanasiyana, kukula kwa zosiyanasiyana zimadalira. pamitundu ya utoto wa electrophoretic, komanso kutsika kapena kutsika kwamadzi amadzimadzi sikwabwino, zomwe zingakhudze mwachindunji utoto wa electrophoretic.

Zotsatira za conductivity mu zokutira electrophoretic:

1. Pamlingo wakutiwakuti, ma conductivity amatha kudziwa kuchuluka kwa utoto womwe ungagwiritsidwe ntchito ku chogwirira ntchito posambira mpaka pamlingo wina.

2. Kuchepa kwa ma conductivity kudzachepetsa pang'ono kuchuluka kwa utoto wa cathodic electrophoresis woyikidwa, m'malo mwake, madutsidwe apamwamba adzawonjezera pang'ono kuchuluka kwa utoto wa cathodic electrophoresis woyikidwa.

3. Tank madzi madutsidwe ndi okwera kwambiri kapena otsika kwambiri, komanso pa makulidwe a electrophoresis utoto filimu, maonekedwe, kusambira malowedwe, etc., makamaka ndi thanki madzi madutsidwe madutsidwe, kusambira malowedwe nawonso kuchuluka, ndiye ndi kukhuthala kwa filimu.

4. Kuthamanga kwapamwamba kwambiri kwa slurry nthawi zambiri kumayambitsidwa ndi zonyansa zambiri kapena pH yochepa, komanso kumayenderana ndi kusintha kwachilendo kwa khalidwe la filimu yophimba, monga peel lalanje, pinholes, kapena kubwerera ku kuwonongeka kwakukulu . ..... ndi zochitika zina zachilendo. Iyenera kuyendetsedwa ndi ultrafilter yokhala ndi anode system.

Zomwe zili pamwambazi ndizomwe zimapangidwira pa cathodic electrophoresis penti zina mwazotsatira. Nthawi zambiri, madutsidwe ayenera kulamulidwa mkati mwa 1200 ± 300μs/cm, chifukwa madutsidwe makamaka amadalira khalidwe la madzi deionized pamaso electrophoresis ndi kukonzanso utoto mu thanki electrophoresis kukhala, kotero pamene madutsidwe ndi mkulu. , itha kutulutsidwanso njira ya ultrafiltration kuti isinthe.

Mitundu yosiyanasiyana ya zokutira za cathodic electrophoresis imakhalanso ndi njira yabwino kwambiri yoyendetsera madzi osamba osamba, pogwiritsa ntchito kusintha kwazing'ono, monga ± 100us/cm sikudzakhudza ntchito ya filimu yokutira, kotero kuwongolera kwakukulu ndi kukula, ± 30us/cm. kusamba madzi madutsidwe ndi mkulu kwambiri kapena otsika kwambiri pa makulidwe a ❖ kuyanika filimu, maonekedwe ndi malowedwe a filimu zimakhudza, ndi kusamba madzi madutsidwe madutsidwe ukuwonjezeka, malowedwe a filimu ndi apamwamba, makulidwe a filimuyo. ilinso yokhuthala. Makulidwe a filimuyo adzakhala ochepa kwambiri. Tank madzi madutsidwe kupitirira malire chapamwamba cha mtengo watchulidwa kapena mkulu, angagwiritsidwe ntchito m'malo deionized madzi ultrafiltration njira kuchepetsa, mwachitsanzo, 300t wa thanki madzi ndi deionized madzi m'malo 20t wa ultrafiltration njira, thanki madzi conductivity akhoza kukhala kuchepetsedwa ndi ± 100us/cm.