Hot-Dip Galvanizing vs. Dacromet Coating: Ke Tšireletso Efe ea Corrosion e Loketseng Li-Fasteners tsa Hao?

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 Hot-Dip Galvanizing vs. Dacromet Coating: Ke Tšireletso Efe ea Corrosion e Loketseng Li-Fasteners tsa Hao? 

2026-06-09

Ha u khetha li-fasteners tse manganga - hore na liboutu, likurufu, linate, liwasha kapa lithupa - mokhoa oa ho roala o bohlokoa joalo ka thepa ea motheo. Tse peli tsa mekhoa ea phekolo e sebelisoang ka ho fetisisa ea holim'a metsi indastering ea fasteners ke hot-dip galvanizing (HDG) le Ho roala ka Dacromet. E 'ngoe le e' ngoe e fana ka tšireletso e tšepahalang ea mafome, empa e fapana haholo ka ts'ebetso, mefuta ea ts'ebeliso, le boemo ba tikoloho. Tataiso ena e arola lits'ebetso ka bobeli ho thusa baenjiniere, batsamaisi ba thepa le borakonteraka ho khetha tharollo e nepahetseng.

1.Hot-Dip Galvanizing ke Eng?

Hot-dip galvanizing ke ts'ebetso e netefalitsoeng eo li-fasteners tsa tšepe - joalo ka liboutu tsa hex, liboutu tsa ankora, linate tsa flange, le likhoele tse khoele - ba qoelisoa ka botlalo ka bateng ea zinki e qhibilihisitsoeng hoo e ka bang 450 °C (842 °F). Zinc metallurgically e tlama holim'a tšepe, e etsa seaparo se teteaneng se nang le mefuta e mengata (hangata. 45–85µm) e sebetsang e le tšitiso ea 'mele le anode ea sehlabelo khahlanong le ho bola.

Melemo ea bohlokoa ea li-fasteners tsa HDG:

Bophelo bo bolelele ba tšebeletso: Bophelo bo bolelele ba ts'ebeletso: lilemo tse 20-70 libakeng tse ngata tsa kantle

Lera le letenya, le tšoarellang la zinki Lera le letenya, le tšoarellang la zinki le mamella tšenyo ea mochini

Tshebetso e babatsehang Ts'ebetso e ntle haholo lits'ebetsong tsa likepe, tsa kaho le tsa meaho

Tšireletso ea sehlabelo Tšireletso ea sehlabelo - zinki e senya pele tšepe e etsa joalo

E boloka chelete E na le litšenyehelo tse ngata bakeng sa liboutu tse kholo le li-fasteners tsa sebopeho

2. Ho roala ha Dacromet ke Eng?

Dacromet (eo hape e ngotsoeng e le Geomet kapa Dacrotized) ke seaparo se thehiloeng metsing, se se nang chromate se entsoeng ka microscopic zinki le li-flakes tsa aluminium tse emisitsoeng ka har'a setlamo sa inorganic. Likurufu, liboutu, likurufu tsa mochini, likurufu tsa ho itšebetsa, 'me li-fasteners tse nepahetseng li koahetsoe ka dip-spin ebe li phekoloa ka 300 °C (572 °F). Filimi e hlahisoang e tšesaane haholo (8–12 µm) empa e fana ka khanyetso e ikhethang ea kutu - hangata e feta Lihora tse 720 litekong tse sa nke lehlakore tsa letsoai (ASTM B117).

Melemo ea bohlokoa ea li-fasteners tse koahetsoeng ka Dacromet:

Ho roala ha Ultrathin Ho roala ka Ultrathin - ho boloka mamello e tiileng holim'a likurufu tse nepahetseng le liboutu

Ha ho kotsi ea hydrogen embrittlement Ha ho kotsi ea hydrogen embrittlement - e bolokehile bakeng sa liboutu tse matla haholo (Kereiti ea 8.8, 10.9, 12.9)

Ts'ebetso e ntle haholo khahlanong le matsoai a litsela Ts'ebetso e ntle haholo khahlano le matsoai a litsela - e loketseng li-fasteners tsa likoloi le tsa mochini

Tšireletso e tšoanang Ho koaheloa ka mokhoa o tšoanang ho li-geometri tse rarahaneng: masoba a khoele, li-fasteners tse foufetseng, li-screws tse nyenyane

Ho baballa tikoloho E na le tikoloho - e lumellana le RoHS, ha e na chromium e nang le hexavalent

3.Papiso ea Mahlakore

Tafole e ka tlase e akaretsa liphapang tse kholo lipakeng tsa hot-dip galvanizing le Dacromet coating bakeng sa mefuta e tloaelehileng ea fasteners ho kenyeletsoa liboutu, li-screws, linate, liboutu tsa ankora le likhoele tse khole.

Thepa Hot-Dip Galvanizing (HDG) Ho roala ha Dacromet
Botenya ba ho roala 45–85µm 8–12 µm
Khanyetso ea Corrosion 20-70 lilemo (ka ntle) >720 h setlolo sa letsoai (ASTM B117)
Mocheso oa Ts'ebetso ~450 °C (bate e qhibilihisitsoeng ea zinki) ~300 °C (sebone sa ho pheha)
H₂ Kotsi ea Embrittlement Ho ka etsahala (ho khetha asiti) Ha ho letho
Dimensional Impact Bohlokoa (botenya) Nyenyane (e nepahetseng-e bolokehileng)
Lisebelisoa tse Tloaelehileng Liboutu tsa sebopeho, liankora, melamu, linate Li-screws tsa likoloi, liboutu tsa M3–M20, likarolo tse nepahetseng
Ponahalo ya Sefahleho Qetello e thata, e nang le zinki e arohaneng Boreleli, matte silevera-grey
Boemo ba Tikoloho Zinc - e ka sebelisoa hape RoHS e lumellana, Cr(VI)-mahala
Molemo ka ho fetisisa Bakeng sa Kaho e boima, marine, meaho Likoloi, mechini, lisebelisoa tsa elektroniki, OEM

4.Ho Khetha Coating e Nepahetseng bakeng sa Kopo ea Hao ea Fastener

Qeto lipakeng tsa HDG le Dacromet qetellong e ipapisitse le lintlha tse tharo: tikoloho ea ts'ebeliso, boholo ba sekhahla le maemo, le litlhoko tsa mamello ea boholo.

Khetha Hot-Dip Galvanizing ha:

Li-fasteners li tla sebelisoa libakeng tse ka ntle, tsa leoatleng kapa tse boima tsa indasteri

Tšireletso ea nako e telele (ea lilemo tse 20+) e hlokahalang ntle le ho tsosolosa

Lihlahisoa li kenyelletsa liboutu tse kholo tsa sebopeho (M16–M72), liboutu tsa ankora, linate tsa hex, kapa li-washer tse bataletseng.

Ho tšoarella ha mochini tlas'a abrasion kapa tšusumetso ke ntho e tlang pele

Khetha seaparo sa Dacromet ha:

Fastener grade ke 10.9, 12.9, kapa ho feta - embrittlement hydrogen e tlameha ho qojoa

Ho mamellana ho bohlokoa haholo (mohlala, li-screw tsa metric, liboutu tsa mochini, li-fasteners tse koetsoeng)

Tšebeliso ea ho qetela e kenyelletsa ho pepesetsoa matsoai a de-icing, lik'hemik'hale, kapa ho thothomela ha maqhubu a phahameng.

Ho hlokahala ho latela RoHS / ELV (OEM ea likoloi, kopano ea lisebelisoa tsa elektroniki)

5.FUJINRUI: Mohloli oa hau oa Anti-Corrosion Fasteners

FUJINRUI Metal e sebetsa ka ho khetheha ho li-fasteners tse sa jeng bakeng sa mebaraka ea kantle ho naha. Lihlahisoa tsa rona li kenyelletsa liboutu tse entsoeng ka masenke a chesang, Li-screws tse koahetsoeng ka Dacromet, li-fasteners tsa tšepe e sa hloekang, le liboutu tsa ankora tse koahetsoeng ka zinc-flake ka boholo ho tloha M6 ho M72. Lihlahisoa tsohle li entsoe ho latela maemo a ISO, DIN, ASTM, le litekanyetso tse ikhethileng tsa bareki.

Hore na o hloka batch e nyane ea ho nepahala metric screws kapa molumo o moholo liboutu tsa sebopeho le linate tsa hex bakeng sa merero ea meralo ea motheo, sehlopha sa rona se fana ka tšehetso e felletseng ea tekheniki ho tsoa khethong ea thepa ka kalafo e holimo, tlhahlobo, le ho paka kantle ho naha.

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