Cathodic ED Paint Epoxy Electrophoretic Coating
Mfundo zoyambira ndi njira zogwirira ntchito
Cathodic epoxy electrophoretic coating(yomwe imatchedwanso cathodic e-coat) ndi njira ya electrochemical yomwe ma epoxy-based resins amayikidwa pa conductive substrate (cathode) amapanga yunifolomu, mafilimu osagwirizana ndi dzimbiri.
Zochita zazikulu:
Electrolysis: Kuchepetsa madzi pa cathode kumapanga OH-ions.
Electrophoresis:Tinthu tating'onoting'ono ta epoxy-amine timasamukira ku cathode.
Electrodeposition: Tinthu ting'onoting'ono tating'onoting'ono tating'onoting'ono timapanga filimu yotchinga.
Electroosmosis: Madzi amafinyidwa, kumawonjezera kumamatira.
Zigawo zazikulu
Chigawo | Ntchito | Zida zodziwika bwino |
Epoxyamine utomoni | Perekani mafupa okutidwa ndi mtengo wabwino | Kusintha kwa epoxy resin + diethylamine |
| Crosslinking wothandizira
| Amapanga mawonekedwe a maukonde atatu-dimensional panthawi yochiritsa kwambiri | Mitundu yotsekedwa ya isocyanates (mwachitsanzo, TDI-caprolactam yotsekedwa mankhwala) |
Wosalowerera ndale | Kupereka utomoni ndi madzi dispersibility | Acetic acid, formic acid |
Zowonjezera | Kuwongolera magwiridwe antchito (kuteteza, kusanja, kunyowetsa) | PTFE, silane coupling agent, boron nitride (BN) |
Njira kuyenda
Chithandizo chisanachitike: Degreasing → kutsuka → kusintha pamwamba → phosphating (kupanga phosphate wosanjikiza kuti kumamatira).
Electrophoresis thanki: Magawo: voteji 150-400V | nthawi 2-4min | kutentha 28-32 ° C | zolimba 18-20%.
Pambuyo pakucha: Ultrafiltration (UF) recirculation system imabwezeretsa utoto woyandama, ndi kuchira> 99%.
Kuphika ndi Kuchiritsa: 160-180 ° C × 20-30min (amalepheretsa wothandizira wodutsa, amamaliza kuchiritsa)
Kufananiza Mitundu Yopaka
Katundu | Anodic E-coat | Cathodic Epoxy E-coat |
Kukaniza kwa Corrosion | Wapakati | Zabwino kwambiri (1,000+ hr mchere kutsitsi) |
Kuwonongeka kwachitsulo | Zotheka (anode oxidation) | Palibe (chitetezo cha cathodic) |
Kuphimba M'mphepete | Wapakati | Wapamwamba |
Environmental Impact | Mtengo VOC | VOC yotsika kwambiri (yotengera madzi) |
Ntchito Zofananira | Zida zamkati | Magalimoto, apanyanja, mapaipi |
Malo Ofunsira
Kupanga Magalimoto: Mapanelo amthupi, mawilo, chassis (owerengera 70% ya msika wapadziko lonse wa e-coat).
Engineering Engineering:Mapaipi amafuta / gasi, nsanja zamphepo zam'mphepete mwa nyanja (zophatikizidwa ndi makina oteteza cathodic).
Zamagetsi ndi zida:Nyumba zamagalimoto, ma radiators (kukana kwamphamvu kwamagetsi > 5 kV/mm).
Minda yomwe ikubwera: Kusungirako mphamvu ya haidrojeni ndi zida zonyamulira, ma batri a lithiamu-ion (chitetezo cha dzimbiri + kuphatikiza kuphatikiza).
Ubwino wamachitidwe
Chitetezo cha Corrosion: Akagwiritsidwa ntchito limodzi ndi machitidwe oteteza cathodic, amatha kukulitsa moyo wautumiki wamapaipi m'malo am'dothi / am'madzi.
Kufalikira kwa Uniform:Imakwaniritsa makulidwe osasinthika (15-30microns) pamitundu yovuta (monga mafelemu agalimoto).
Chitetezo cha chilengedwe:Mapangidwe opangidwa ndi madzi amachepetsa mpweya wa volatile organic compound (VOC) ndi 90% poyerekeza ndi zokutira zosungunulira.
Zowonetsera Zamalonda
