Electrophoretic zokutirandizofanana ndi njira zina zokutira. Ziwalo zophimbidwa ziyenera kuchitidwa pamwamba musanaphike. Kuchiza pamwamba ndi ntchito yofunika yomwe iyenera kuchitidwa musanakutire. Njira ❖ kuyanika osiyana, zipangizo zosiyanasiyana ndi mikhalidwe yawo pamwamba, kotero The chofunika pamwamba mankhwala njira ndi njira si zofanana. Sikuti njira zosiyanasiyana zochizira pamwamba ndi mtundu wa chithandizo zimakhudza kwambiri makulidwe ake, komanso mtengo wamankhwala apamwamba umakhudza kwambiri. Choncho, pamene tikuchita kamangidwe luso tiyenera The unsembe njira, zinthu ndi pamwamba dziko la TACHIMATA mbali, ndi pamwamba mankhwala ndondomeko ndi njira ndi pertinence amphamvu, zotsatira zabwino mankhwala ndi mtengo wotsika ayenera kusankhidwa mmene ndingathere. .
Chifukwa chiyani electrophoresis ili ndi njira yopangira chithandizo?
Mu pretreatment ndondomeko electrophoresis pali mgwirizano wa degreasing, kuchotsa dzimbiri, phosphating, pamwamba kusintha ndi njira zina. Tinganene kuti pretreatment n'kofunika kwambiri ❖ kuyanika electrophoretic, zomwe zikugwirizana ndi kukhazikika kwa electrophoretic penti kusamba pambuyo electrophoresis ndi khalidwe la ❖ kuyanika filimu pamwamba pa workpiece.
Kuti mupeze kukhazikika komanso kukana kwa dzimbiri kwa filimu yokutira ya electrophoretic workpiece, chithandizo cha phosphating chimagwiritsidwa ntchito ngati pretreatment of coating. Phosphating treatment (yomwe imadziwikanso kuti phosphate chemical treatment) ndi ukadaulo wa (phosphating film) womwe umagwiritsa ntchito dissociation (equilibrium) reaction ya phosphoric acid kuti iwononge mchere wachitsulo wosasungunuka wa phosphate pamwamba pa magawo azitsulo otsukidwa (odetsedwa). Ntchito ya filimu ya phosphating ndikupititsa patsogolo kaphatikizidwe ndi kukana kwa dzimbiri kwa filimu yokutira (electrophoretic coating) yomwe imagwiritsidwa ntchito pa izo.
Ponena za zomatira, makhiristo a filimu ya phosphide yomwe adapeza amasungunuka pang'ono pamwamba pazitsulo, ndipo kumamatira kwa makristasi kuli bwino. Kuonjezera apo, malowa akuwonjezeka chifukwa cha kusagwirizana kwapamwamba kwa makristasi ambiri, ndipo kumamatira kwa filimu yophimba kumapangidwa bwino. Kenaka, ndi kupititsa patsogolo kumatira kwa filimu yophimba, kulowetsedwa kwa zinthu zowononga zowonongeka kumatetezedwa, ndipo kukana kwa dzimbiri kumatheka (makamaka kuwonjezereka kwa dzimbiri pansi pa filimu ya utoto kungalephereke).
Chophimbacho chidzaphulika ndi dzimbiri pakanthawi kochepa popanda phosphating. Madzi ndi mpweya zomwe zimadutsa mufilimu yophimba zimafika pamwamba pa workpiece kupanga dzimbiri lofiira ndikutupa filimu ya utoto. Madzi ndi mpweya zomwe zimadutsa mufilimuyi zimafika pazitsulo zachitsulo kuti zipange dzimbiri loyera, zomwe zimakhudzidwanso ndi filimu yophimba kupanga sopo wachitsulo. Nthawi zingapo zazikulu, kotero kuti filimu yokutira imadzitukumula mwamphamvu. Phosphating filimu ndi insoluble filimu yopangidwa pa zitsulo pamwamba ndi mankhwala anachita. Chifukwa chomatira bwino (zakuthupi) komanso kukhazikika kwamankhwala, amatengedwa ngati gawo lokhazikika loletsa dzimbiri.
Kuti mupeze filimu yabwino kwambiri komanso yokhazikika ya phosphating ndikuwonetsetsa kuti imamatira komanso kukana kwa dzimbiri, kasamalidwe ka pretreatment ndikofunikira kwambiri. Nthawi yomweyo, ndikofunikira kumvetsetsa bwino momwe zimachitikira komanso zinthu zaphosphating.
Nthawi yotumiza: Jul-08-2022
