1. Kuchiza: Kuti muchotse mafuta osafunikira, zotsalira zowotcherera, ndi zonyansa kuchokera kumagetsi agalimoto kuchokera kufakitale yamafuta, filimu ya zinc phosphate (3-5)㎛) amagwiritsidwa ntchito pamwamba pa thupi kuti awonjezere kumamatira panthawi yapansi (electrodeposition). ndondomeko. Chifukwa cha chitetezo cha thupi la galimoto.
- Kutsuka: Pambuyo posonkhanitsa thupi, amasambitsidwa ndi madzi asanachotse mafuta.
- Kutsitsa kwakukulu: Kumachotsa mafuta m'galimoto.
- Muzimutsuka zokhazikika: Wothandizira mankhwala omwe ali ndi titaniyamu monga gawo lalikulu, kupanga ma colloid ambiri pamwamba pazitsulo kuti awonjezere kuyambiranso kupanga filimu wandiweyani ya zinc phosphate kuti apange makhiristo abwino ndi wandiweyani.
- Filimu ya Zinc phosphate: Filimu ya zinc phosphate imayikidwa kuti ilimbikitse kumamatira kwa undercoat ndikuletsa dzimbiri.
1) Etching imayambira pa anode ya pepala lachitsulo mu njira yokutira
2) Kutengera ndi dzimbiri, ma cations amadyedwa pa cathode, ndipo pH ya mawonekedwe imakwera.
3) Colloid pamwamba amakhala phata ndi crystallizes
- Uvuni wowuma wamadzi: Njira yochotseratu chinyezi mu gawo lapansi pambuyo pomaliza chithandizo.
※ Kutentha kwa kutentha ndi kuyanika m'manja
Pambuyo pophimba thupi ndi filimu ya zinc phosphate ( ), yambani ndi madzi ndikuyimitsa ndi dzanja. Kuyanika pamanja ndi njira yochotseratu chinyontho pa chinthu chomwe chiyenera kuphimbidwa ndikuchitanso kujambula. Kwezani kutentha kuti zisungunuke chinyezi kudzera mukusintha kutentha. Kuyanika (evaporation) ndi chodabwitsa chomwe chimachitika pamene kutentha kwa malo olimba omwe akukhudzana ndi otsika kusiyana ndi malo otentha komanso kuthamanga kwa mumlengalenga kumakhala kotsika kusiyana ndi kuthamanga kwa nthunzi. kusintha kwa gawo kudzachitika. Kutentha ndi nthawi yofunikira pa ng'anjo yowumitsa pamanja zimasiyana malinga ndi zakuthupi, makulidwe, ndi mawonekedwe a chinthu chophimbidwa. Nthawi zambiri, mphindi 10 pa 120 ~ 150 ℃ ndizofala, ndipo chifukwa chokweza kutentha ndikuwonjezera mphamvu ya nthunzi yamadzi yofananira ndi kutentha ndikuuma mwachangu popereka mphamvu zambiri zotentha. Panthawiyi, pasakhale kusintha kwachitsulo kapena mankhwala chifukwa cha kutentha.
1,Electrodeposition process: Njira yopangira filimu yophimba mkati / kunja kwa galimoto ya galimoto pogwiritsa ntchito electrophoresis kupyolera mumagetsi pambuyo pa kumiza thupi la galimoto mu utoto wa electrodeposition, pofuna kuteteza kuwonongeka kwa galimoto.
- Electrodeposition: Kupenta kwa Electrodeposition ndi njira yopenta momwe utoto umamangiriridwa ndi magetsi pomiza thupi lagalimoto mu njira ya utoto ndikuyenda kwa anode kapena cathode kudutsa mugalimoto yamagalimoto. Komabe, ndi njira yoyenera kupanga zambiri, ndipo zimakhala zovuta kupentanso filimu yophimbayo ikalumikizidwa ndipo magetsi sakuyenda.
- DI kutsuka
- Electrodeposition Drying ng'anjo: Pa zokutira za cationic electrodeposition, zomwe zimagwiritsidwa ntchito makamaka, ng'anjo yowumitsa kutentha imagwiritsidwa ntchito chifukwa filimu yoyikidwa pamwamba imawongoleredwa ndi matenthedwe amadzimadzi chifukwa cha kutentha kwapakati (kuchiritsa matenthedwe). Kutentha ndi nthawi yofunikira pochiritsa kutentha kumasiyana malinga ndi zinthu, makulidwe, ndi mawonekedwe a chinthu chokutidwa. Pachinthu chopyapyala chopyapyala, kutentha kwapamtunda ndi 200-210 ° C ndipo kutentha kwa ng'anjo ndi 210-230 ° C, ndipo nthawi yotentha nthawi zambiri imakhala mphindi 20-30 kwathunthu kwa mphindi 10 kapena kupitilira apo. Kutentha nthawi ya chinthu choti chikutidwe ndi 200-210 ° C kugwira nthawi.
- Kupukuta kwa Electrodeposition: Pogaya mbali zokhotakhota ndi zotuluka pamwamba kuti zikhale zosalala.
2, Halfway Paint: Iyi ndi njira yogwiritsira ntchito utoto, yomwe nthawi zambiri imatchedwa primer. Imayeretsa pamwamba kuti chovala chapamwamba chitsatire bwino ndipo chimathandizira kuti zisawonongeke. Ndimagwiritsa ntchito mtundu wosiyana pang'ono wapakati kuti ufanane ndi mtundu wa malaya apamwamba.
- Njira yapakatikati
- Ng'anjo yoyanika yapakatikati
3, chovala chapamwamba: Njira yogwiritsira ntchito mtundu wagalimoto yowoneka ndikumaliza ndi utoto wowonekera. Posachedwapa, chifukwa cha malamulo a chilengedwe, ndi zina zotero, utoto wa eco-friendly (zinthu zochepa zowonongeka) zimagwiritsidwa ntchito pang'onopang'ono. Choyera pambuyo pa chovala chapamwamba
- ndondomeko yodula pamwamba
- Ng'anjo yowumitsa topcoat
※ Kutentha kwa kutentha mu electrodeposition / pakati / pamwamba / pamwamba poyatsira kutentha ndi kuyanika ng'anjo
Mu ng'anjo yowumitsa, kutentha kumasamutsidwa kumalo opaka utoto m'njira ziwiri.
Convection: Kuti mufikire mosavuta kutentha kwa kutentha kwa filimu yophimba, kuthamanga kwa mpweya kumafunika, ndipo kuthamanga kwachangu kumapezeka mwa kuzungulira mpweya wotentha mu ng'anjo yowumitsa pa liwiro la mphepo (kukakamiza convection).
Kutentha kotentha: Khoma limatenthedwa mpaka madigiri mazana angapo pamwamba pa kutentha kwa filimu yokutira mu ng'anjo yowumitsa mwapadera, ndipo kutentha kwakukulu kumaperekedwa kumalo opaka utoto mofanana ndi momwe chitofu chimatenthetsera thupi.
Nthawi yotumiza: Nov-08-2022
