Bakeng sa lipoleiti tsa joko tsa hot dip tse sebelisoang lithapong tsa phetiso ea motlakase, ts'ebetsong e tloahelehileng ea mokhoa oa ho futhumatsa-dip galvanizing e laolang bophelo ba ts'ebeletso le ts'ireletso ea sehlahisoa ka kotloloho. Sengoliloeng sena se tla fana ka kenyelletso e qaqileng ho tsoa likarolong tsa melao-motheo ea ts'ebetso, mekhoa ea mantlha, lintlha tsa bohlokoa tsa taolo ea boleng, melemo ea ts'ebetso, le litekanyetso tsa ho latela khoebo ea kantle ho naha.
Ho chesa-dip galvanizing ha e le hantle ke ts'ebetso ea metallurgical bonding. Ha karolo e ka holimo-joko ea tšepe e hloekisitsoeng e qoelisoa ka zinking e qhibilihisitsoeng hoo e ka bang 450℃, iron (Fe) e ka har'a tšepe le zinki (Zn) e ka har'a zinki e qhibilihisitsoeng e tsoela pele ho tsoakana le ho kopana, ho etsa lera{4}}karolelano ea masenke a mararo. Ho tloha ka hare ho ea holimo, lihlopha tsena ke:
Iron-Zinc Alloy Layer (Inner Layer): E tlamahane ka ho otloloha le karolo e ka tlaase ea tšepe, haholo-holo e entsoeng ka Fe3Zn10 le FeZn7, e teteaneng 'me e na le mamaretse a matla haholo, e fana ka tiisetso ea motheo bakeng sa ho thibela kutu le ho thibela{4}}mehaho ea ho ebola.
Zinc-Iron Alloy Layer (Hare Layer): E entsoe ka FeZn13, e na le botenya bo itekanetseng mme e kopanya ho thatafala le ho tiea.
Lera le Hloekileng la Zinc (Lera la Kantle): E koahela lera le ka ntle, le bonolo ebile le ductile, le etsa filimi e sireletsang ea zinc oxide holim'a metsi. Ho feta moo, ha ho e-na le li-scratches tsa sebakeng sa heno, e fana ka tšireletso e tsoelang pele sebakeng se hlabang ka phello ea sehlabelo sa anodic tšireletso.
Bakeng sa li-Hot Dip Galvanized Yoke Plates, kakaretso ea botenya ba-karolo ea lera e tlameha ho laoloa ka thata hore e be ka holimo ho 65μm. Bakeng sa lits'ebetso tse phahameng-tse hlokahalang, botenya bo ka eketsoa ho 85μm ho khotsofatsa litlhoko tsa ho fafatsa letsoai le phahameng le tikoloho e senyang haholo.
Ts'ebetso ea ho hlahisa li-Hot Dip Galvanized Yoke Plates e tlameha ho latela mokhoa o tloaelehileng oa tlhahlobo ea pele ea kalafo - e chesang{1}}dip galvanizing - posttreatment - tlhahlobo. Har'a bona, pretreatment ke mohato oa bohlokoa o khethollang boleng ba galvanizing mme o ama ka ho toba ho khomarela le ho tšoana ha seaparo.
Kalafo ea ho tlosa mafura: Sebelisa setlolo se tlosang alkaline ho koloba ka 60-80℃metsotso e 5-10, kapa sebelisa{5}sehloekiso sa khatello e phahameng ea khatello ho tlosa oli e thibelang mafome, lerōle le matheba a oli holim'a poleiti e hokelang. Likarolo tse hatisitsoeng tsa poleiti ea joko le mabota a ka hare a masoba a bolt ke libaka tse nang le masala a oli, a hlokang nako e telele ea ho fafatsa kapa ho hloekisoa ka thuso ea ultrasonic.
Ho hlatsoa le ho hloekisa metsi: Hlatsoa ka tanka ea ho hlatsoa metsi ea mantlha le ea bobeli ho tlosa ntho e setseng ea ho tlosa mafura. Ts'ebetso ena e tlameha ho etsa bonnete ba hore ha ho na metsi a bokellaneng kapa sekheo se setseng ka mekoting ea bolt.
Ho tlosa mafome le ho tlosa mafome: Sebelisa hydrochloric acid bakeng sa ho kha, ho qoelisoa ka mocheso oa kamore ka metsotso e 10-15 ho tlosa oxide scale, rust, rolling oxide layer ho tloha holim'a joko. Bakeng sa tekanyo e teteaneng ea oxide, nako ea pickling e ka atolosoa ka mokhoa o nepahetseng, empa ho hlokahala taolo e tiileng ho qoba ho phunya ho feta tekano, e leng se ka lebisang ho mahlahahlaha a holim'a metsi le ho fokotsa ho khomarela ho khomarela.
Ho hlatsoa metsi le ho se nke lehlakore: Inela ka har'a tanka ea alkaline e se nang letho ho fokotsa lintho tse setseng tsa asiti, ho etsa bonnete ba hore sebaka se sa nke lehlakore. Mabota a ka hare a masoba a bolt a tlameha ho hlatsuoa hantle ho thibela masalla a asiti hore a se ke a baka makhopho ka lera la masenke.
Drying and preheating: Dry at 120-150℃ for 10-15 minutes to completely remove surface moisture. The surface must be free of water stains and oxidation; otherwise, the galvanized layer may show signs of blistering or exposure to oxidized material. Defects such as those mentioned above; Zinc immersion: The zinc immersion temperature is strictly controlled at 445-460℃. The immersion time is adjusted according to the thickness of the plate. When the thickness is ≤6mm, the immersion time is 1-2 minutes. When the thickness is >6mm, nako ea ho qoelisoa ke metsotso e 2-3. Kalafo ea ho pholisa: Sebelisa moea o pholileng kapa ho pholisa moholi oa metsi ho pholile ho ea mocheso oa kamore. Nakong ea ho pholile, qoba ho thulana pakeng tsa Li-Hot Dip Galvanized Yoke Plates ho thibela mengoallo holim'a seaparo.
Bakeng sa lipoleiti tsa Yoke tsa Hot Dip tse romelloang kantle ho naha, ts'ebetso ea tlhahiso e tlameha ho fihlela litekanyetso tse nepahetseng le litlhoko tsa setifikeiti tsa mmaraka o reriloeng; ho seng joalo, ba ke ke ba khona ho kena 'marakeng. Joaloka moetsi ea hloahloa, k'hamphani ea rona e etelletsa pele boleng ba sehlahisoa; ka kopo ikutloe u lokolohile ho reka.
