Liaparo tse tloaelehileng tsa hot-dip ke life?
Ho na le mefuta e mengata ea liaparo tsa hot-dip bakeng sa lipoleiti tsa tšepe le likhoele. Melao ea ho arola ho pholletsa le maemo a maholo-ho kenyeletsoa maemo a naha ea Amerika, Japane, Europe, le Chaena-e tšoana. Re tla sekaseka re sebelisa tekanyetso ea Europe EN 10346: 2015 joalo ka mohlala.
Liaparo tse tloaelehileng tsa hot-dip li oela likarolong tse tšeletseng tse kholo:
- Zinc e hloekileng ea metsi a chesang (Z)
- Hot-dip zinc-iron alloy (ZF)
- Zinc-aluminium e chesang e chesang (ZA)
- Hot-dip aluminium-zinc (AZ)
- Aluminium-silicon e chesang e chesang (AS)
- Zinc-magnesium e chesang (ZM)
Litlhaloso le litšoaneleho tsa liphahlo tse fapaneng tsa hot-dip
Lithapa tsa tšepe tse hloekisitsoeng pele li qoelisoa ka har'a bateng e qhibilihisitsoeng. Litšepe tse fapaneng tse qhibilihisitsoeng ka har'a bateng li fana ka liphahlo tse fapaneng (ntle le litlolo tse entsoeng ka zinki-tšepe).
Papiso Pakeng Tsa Hot-Dip Galvanizing le Electrogalvanizing
1. Galvanizing Process Overview
Galvanizing e bolela mokhoa oa kalafo o kaholimo oa ho sebelisa lesela la zinki ho litšepe, li-alloys kapa lisebelisoa tse ling molemong oa botle le ho thibela kutu. Mekhoa e sebelisoang haholo ke hot-dip galvanizing le cold galvanizing (electrogalvanizing).
2. Mocheso oa ho Kopitsa Galvanizing Process
Mokhoa o ka sehloohong oa ho etsa hore bokaholimo ba letlapa la tšepe kajeno bo kenngoe ke metsi a chesang. Hot-dip galvanizing (hape e tsejoa e le hot-dip zinc coating kapa hot-dip galvanization) ke mokhoa o sebetsang oa ts'ireletso ea ts'hose ea tšepe, e sebelisoang haholo litsing tsa meralo ea tšepe ho pholletsa le liindasteri tse fapaneng. E kenyelletsa ho qoelisa likarolo tsa tšepe tse tlositsoeng ke mafome ka har'a zinki e qhibilihisitsoeng hoo e ka bang 500 ° C, ho beha lesela la zinki holim'a tšepe ho fihlela ho hanyetsa ho bola. Ho phalla ha metsi a chesang a chesang: Ho qeta ho hlatsoa asiti → Ho hlatsoa ka metsi → Ho sebelisoa ha flux → Ho omisa → Ho fanyeha bakeng sa ho roala → Ho pholisa → Phekolo ea lik'hemik'hale → Ho hloekisa → Ho polishing → Ho kenya metsi a chesang ho felile.
3. Cold-dip Galvanizing Process
Cold galvanizing, eo hape e tsejoang e le electrogalvanizing, e sebelisa lisebelisoa tsa electrolytic. Ka mor'a ho hlatsuoa le ho hlatsoa asiti, lisebelisoa tsa liphaephe li kenngoa ka har'a tharollo e nang le letsoai la zinki 'me li kopantsoe ho terminal e mpe ea lisebelisoa tsa electrolytic. Letlapa la zinc le behiloe khahlano le li-fittings 'me le hokahane le terminal e ntle. Ha matla a sebelisoa, motsamao o lebisitsoeng oa hona joale ho tloha ho o motle ho ea ho o mobe o etsa hore zinki e behelle holim'a lisebelisoa. Li-fittings tsa lipeipi tse batang li ntse li sebetsa pele li behoa.
Litekanyetso tsa tekheniki li lumellana le ASTM B695-2000 (US) le lintlha tsa sesole C-81562 bakeng sa ho galvanization ka mochini.
Papiso ea Hot-Dip Galvanizing vs. Cold-Dip Galvanizing
Hot-dip galvanizing e fana ka khanyetso e phahameng haholo ea kutu ho feta serame sa dip galvanizing (e tsejoang hape e le electrogalvanizing). Liaparo tse entsoeng ka motlakase hangata li tloha ho 5 ho isa ho 15 μm ka botenya, ha liphahlo tse chesang tse chesang ka kakaretso li feta 35 μm 'me li ka fihla ho 200 μm. Hot-dip galvanizing e fana ka tšireletso e phahameng ka ho roala ho teteaneng ho se nang li-inclusions tsa organic. Electrogalvanizing e sebelisa litlolo tse tlatsitsoeng ka zinki ho sireletsa litšepe hore li se ke tsa bola. Liaparo tsena li sebelisoa sebakeng se sirelelitsoeng ho sebelisa mokhoa leha e le ofe oa ho roala, ho etsa lesela le tletseng zinki ka mor'a ho omisa. Seaparo se omisitsoeng se na le zinki tse ngata (ho fihlela ho 95%). Tšepe e kenngoa ka holim'a zinki ka holim'a eona tlas'a maemo a pholileng, athe hot-dip galvanizing e kenyelletsa ho koahela lipeipi tsa tšepe ka zinki ka ho qoelisoa ka metsi a chesang. Ts'ebetso ena e fana ka sekhomaretsi se matla ka mokhoa o ikhethang, se etsang hore lesela le be thata haholo ho peeling.
Tsela ea ho khetholla hot-dip galvanizing ho tloha ho batang?
1. Boitsebiso ba Pono
Libaka tse nang le masenke a chesang-dip li bonahala li le mpenyana ka kakaretso, li bonts'a li-watermark tse susumetsoang ke ts'ebetso, marotholi le li-nodule - li bonahala haholo pheletsong e 'ngoe ea mosebetsi. Ponahalo ea kakaretso ke silevera-white.
Libaka tse entsoeng ka motlakase (tse batang-tse batang) li boreleli, haholo-holo bosehla bo botala ka 'mala, leha ho le joalo ho ka hlaha bosoeu bo boputsoa, kapa bosoeu bo nang le botala bo botala. Libaka tsena hangata ha li bontše li-nodule tsa zinc kapa li-clumping.
2. Ho khetholla ka Ts'ebetso
Hot-dip galvanizing e kenyelletsa mehato e mengata: ho theola, ho khetha asiti, ho qoelisoa ka lik'hemik'hale, ho omisa, 'me qetellong ho qoelisoa ka zinki e qhibilihisitsoeng nako e itseng pele e tlosoa. Ts'ebetso ena e sebelisoa bakeng sa lintho tse kang liphaephe tse nang le masenke a chesang.
Cold galvanizing, leha ho le joalo, ha e le hantle ke electrogalvanizing. E sebelisa lisebelisoa tsa electrolytic moo mochini o sebetsang o theohang le ho khetla pele o qoelisoa ka har'a motsoako oa letsoai oa zinki. E hokahane le lisebelisoa tsa electrolytic, workpiece e beha lesela la zinki ka motsamao o lebisitsoeng oa hona joale lipakeng tsa li-electrode tse ntle le tse mpe.
Nako ea poso: Oct-01-2025
