Mu mafakitale opanga zinthu. Ma Casters, monga gawo lofunika kwambiri la ukadaulo wake wosamalira pamwamba, ndikofunikira kuti zinthuzo ziwoneke zokongola, zolimba komanso zolimbana ndi dzimbiri. Ma Galvanizing ndi njira yodziwika bwino yosamalira pamwamba. Amagwiritsidwa ntchito kwambiri pochiza ma caster alloys pamwamba. Nkhaniyi ifotokoza njira zingapo zodziwika bwino zogwiritsira ntchito ma galvanizing, kuphatikizapo cyanide galvanizing, zincate galvanizing, chloride galvanizing, ndi sulfate galvanizing. Yapangidwa kuti ipatse owerenga chidziwitso chokwanira chaukadaulo.
1, Cyanide galvanization
Kupaka kwa cyanide, chifukwa cha mphamvu yake yobalalitsa komanso khalidwe lake labwino la plating. Kale inali ndi udindo wofunikira mumakampani opanga ma electroplating. Komabe. Chifukwa cha poizoni wambiri wa cyanide komanso kuopsa kwa chilengedwe. Kugwiritsa ntchito kwake kuli kocheperako. Komabe, kupanga njira zopaka za low-cyanide (microcyanide) galvanizing. Kupangitsa kuti zinthu ziwoneke bwino komanso kuchepetsa zoopsa zachilengedwe. Pansi pa njira yopaka ya cyanide galvanizing, khalidwe la chinthucho ndi labwino kwambiri mutapaka gawo la hardware la caster. Makamaka utoto utatha kuchotsedwa, Mitundu imakhalabe yowala kwa nthawi yayitali.
2, mawu ndi malingaliro okhudzana ndi kuwotcherera kwa zincate galvanized caster
Njira yopangira zincate galvanizing ndi njira ina yosawononga chilengedwe m'malo mwa cyanide galvanizing. Pakadali pano, amagawidwa m'magulu a "DPE" a Wuhan Institute of Materials Protection ndi mndandanda wa "DE" wa Guangdian Institute. Onsewa ndi zincate galvaning ndi zowonjezera za alkaline. Ili ndi mawonekedwe a columnar lattice structure of plating, yabwino dzimbiri, komanso yoyenera color galvanizing. Kapangidwe kake kamakhala ndi NaOH, ZnO, ndi zowonjezera zinazake. Mwachitsanzo, kuphatikiza kwa "DPE-II" ndi ethanolamine. Njirayi imafuna kuwongolera mwamphamvu kapangidwe ka plating solution ndi momwe zinthu zilili monga pH, kutentha, ndi kuchuluka kwa current. Kuti muwonetsetse kuti plating ili bwino. Pambuyo poti chinthucho chatuluka mu thanki, chiyenera kudutsamo njira zingapo zochizira pambuyo pake, monga kutsuka, kupukuta, kupumula, ndi kuumitsa. kuti mupeze zotsatira zabwino.
3, chloride galvanization
Njira yopangira chloride galvanizing imagwiritsidwa ntchito kwambiri mumakampani opanga ma hardware plating. Chiŵerengero chake ndi choposa 40%. Mawonekedwe osasinthika (abuluu-woyera kapena asiliva-woyera) a njirayi ndi ofanana ndi a chrome plating. Ndipo mtengo wake ndi wotsika. Ma formula wamba a chloride galvanizing ndi KCl, ZnCl_2, H_3BO_3 (buffer), ndi zowunikira zinazake. Njirayi ndi yoyenera kwambiri pa white passivation (buluu-woyera, siliva-woyera). Pakati pawo, siliva-woyera passivation chifukwa cha mtundu wake wokhazikika. Nthawi zambiri amasankhidwa ngati chisankho choyamba. Komabe, ndikofunikira kudziwa kuti Chloride galvaning coating, ikawonekera mumlengalenga kwa nthawi yayitali, ndi yoti nembanemba imatha kusintha mtundu. Zimakhudza mawonekedwe ndi kukana dzimbiri kwa chinthucho. Chifukwa chake. M'machitidwe, ndikofunikira kutenga njira zoyenera kuti tipewe kusintha mtundu.
4, sulfate galvanization
Njira yopangira sulfate galvanizing, yokhala ndi mtengo wotsika komanso yoyenera kupangira plating mosalekeza (monga waya, strip, ndi zina zotero). Malo mumakampani opanga ma electroplating. Ma formula wamba a njirayi akuphatikizapo ZnSO_4, H_3BO_3, ndi zowunikira zinazake. Mtengo wa pH wa sulfate galvanizing nthawi zambiri umayendetsedwa pakati pa 4.5 ndi 5.5. Mwa kusintha kapangidwe ka yankho la plating ndi momwe zinthu zilili, chophimba cha A chokhala ndi kukana dzimbiri komanso kuwala bwino chingapezeke. Komabe. Poyerekeza ndi njira zina zopangira galvanizing, sulfate galvanizing ikhoza kukhala yotsika pang'ono pankhani ya kunyezimira ndi kufanana kwa chophimbacho.
ndemanga zomaliza
Mwachidule. Ma galvanizi amapangidwa ndi galvanizi m'njira zosiyanasiyana. Njira iliyonse ili ndi ubwino wake wapadera komanso momwe ingagwiritsidwire ntchito. M'machitidwe ake. Iyenera kutengera malo ogwiritsira ntchito komanso zofunikira pakugwira ntchito kwa galvanizi. Sankhani njira yoyenera yopangira galvanizing. Pakadali pano. Ndi malamulo okhwima okhudza chilengedwe komanso kupita patsogolo kwa ukadaulo wopangira plating, njira yopangira galvanizing yosamalira chilengedwe, yogwira ntchito bwino komanso yotsika mtengo idzakhala njira yopititsira patsogolo chitukuko chamtsogolo.
Nthawi yotumizira: Marichi-20-2025