Li-Bolts tsa Dacromet Flange: Kenyelletso e Felletseng ea Li-Fasteners tsa Ts'ebetso e Phahameng ea Anti-Corrosion

2026-09-21

1. Kenyelletso ea Flange Bolts le Litlhoko tsa Anti-Corrosion

Li-flange bolts ke li-fasteners tsa bohlokoa tse sebelisoang haholo lits'ebetsong tsa liphaephe, likepe tsa khatello, likhokahano tsa tšepe tsa sebopeho, likopano tsa likoloi, ho kenya motlakase oa moea, limela tsa petrochemical le lisebelisoa tse boima tsa indasteri. Li-bolts tsena tse khethehileng li tiisa manonyeletso a sireletsehileng, a sa lutleng pakeng tsa li-flange tlas'a khatello e phahameng le mojaro oa mochini. Leha ho le joalo, libakeng tsa sebele tsa lits'ebeletso tsa lefats'e tse kenyelletsang mongobo, sehatsetsi sa letsoai, lik'hemik'hale tsa indasteri, mongobo o phahameng, kapa libaka tse lebōpong la leoatle, liboutu tse tloaelehileng tsa tšepe li kotsing ea ho bola le mafome. Progressive oxidation e fokotsa matla a ho koala, e baka ho lutla ha manonyeletso, e fokolisa botsitso ba sebopeho, 'me e lebisa ho hloleheng ho hoholo pele ho nako.

Ho rarolla mathata ana, indasteri ea sejoale-joale e itšetleha ka mahlale a tsoetseng pele a ts'ireletso ea holim'a metsi. Har'a litharollo tse atlehang ka ho fetisisa ke Dacromet (e tsejoang hape e le Dacomet kapa zinc-aluminium flake coating). Liboutu tsa flange tse koahetsoeng ka Dacromet li fana ka tse ikhethang khanyetso ea kutu, e ikhethang anti-rust tshebetso, le nako e telele thibelo ea mafome. Sengoliloeng sena se hlahisa liboutu tsa Dacromet flange ka botlalo, sebopeho se koahelang, melemo ea ts'ebetso, litšobotsi tsa tekheniki, le boleng ba ts'ebeliso ha u batla. anti-corrosion tikoloho.

Dacromet Flange Bolts Selelekela se Feletseng (1)

2. Dacromet Coating ke Eng?

Dacromet ke mokhoa o phahameng oa ts'ebetso ea zinki-aluminium flake coating system e ntlafalitsoeng e le mokhoa o tsoetseng pele oa mokhoa oa setso oa electroplating le hot-dip galvanizing. Sekoahelo se na le likarolo tse qoelanang tsa zinki le li-flakes tsa aluminium tse fanyehiloeng ka har'a setlamo sa inorganic. Ka mor'a ho sebelisoa ka mekhoa ea dip-spin, spray, kapa dip-drain le phekolo ea mocheso o phahameng, li-flakes li etsa mokoallo o teteaneng, o nang le mekhahlelo e mengata o fanang ka mekhoa e mengata ea anti-corrosion tshireletso.

Ho fapana le plating e tloaelehileng ea zinki e itšetlehileng ka lera le le leng le tsoelang pele la tšepe, sebopeho sa lamellar sa zinki le li-flakes tsa aluminium se etsa tsela e rarahaneng e fokotsang haholo ho kenella ha metsi, oksijene le li-ion tsa chloride. Microstructure ena e ikhethang e theha motheo oa boleng bo phahameng ba ho roala khanyetso ea kutu le e tšoarellang nako e telele thibelo ea mafome bokgoni. Botenya bo tloaelehileng ba ho roala ha Dacromet bo tloha ho li-micrometer tse 5 ho isa ho tse 12 (μm). Ho sa tsotellehe boemo ba eona bo tšesaane, Dacromet layer e sebelisitsoeng hantle e ka finyella ho hanyetsa ha letsoai ho feta lihora tsa 1,000-'me hangata ho feta lihora tsa 2,000-ntle le ponahalo e khubelu ea mafome. Boemo bona ba anti-rust ts'ebetso e feta hole lintja tse tloaelehileng tse nang le galvanized electro-galvanized 'me hangata e sebetsa ho feta tekano ea hot-dip galvanizing litekong tsa nako e telele le tsa nako e telele.

3. Melemo ea Bohlokoa ea Dacromet Flange Bolts

Li-bolts tsa Dacromet flange li kopanya botšepehi ba mochine le bo phahameng anti-corrosion durability, ho etsa hore e be tse loketseng bakeng sa lisebelisoa tse matla le tse bohlokoa tsa ho tiisa.

3.1 Khanyetso e Hlollang ea Khoho le Ts'ebetso e Khahlanong le Rusu

Lebaka le ka sehloohong la ho khetha liboutu tsa flange tse koahetsoeng ke Dacromet ke tse ikhethang khanyetso ea kutu. Liteko tse ikemetseng tsa setlolo sa letsoai (ASTM B117 / ISO 9227) li lula li bontša hore liaparo tsa Dacromet li mamella lihora tse 1,000 ho isa ho tse 2,000 kapa ho feta pele mafome a khubelu a hlaha. Litlhahlobo tse bapisoang li bonts'a hore Dacromet hangata e fana ka 3 ho makhetlo a 10 hamolemo anti-rust tshebetso ho feta e tloaelehileng zinki electroplating. Sena se phahame thibelo ea mafome bokhoni bo fetolela bophelo bo atolositsoeng ba ts'ebeletso bakeng sa likhokahano tsa flange tse pepesehileng tikolohong e mabifi joalo ka maoatle, maoatle le tikoloho ea indasteri.

3.2 Ha ho Kotsi ea ho Ebrittlement Hydrogen

Li-bolts tsa matla a phahameng a matla (limaraka tsa 8.8, 10.9, 12.9 le ASTM A490 / F3125 liboutu tsa meralo) li tsotella haholo ho embrittlement ea haedrojene. Electroplating ea setso e kenyelletsa ho khetha acidic le electrolytic deposition e ka kenyang haedrojene ka har'a tšepe, e leng kotsi ea ho robeha ha brittle ho lieha. Dacromet ke ts'ebetso e seng ea electrolytic e qobang kotsi ena, e etsa hore liboutu tse tšoaroang ke Dacromet e be tse ratoang. anti-corrosion tharollo bakeng sa liboutu tsa flange tse matla haholo.

3.3 Ho Koaheloa ha Khoele ka Tšebelisano e Ntle ea Khoele

Ka botenya bo tloaelehileng ba 5-12 μm feela, filimi ea Dacromet ha e fetole haholo litekanyo tsa khoele kapa e kena-kenana le ho kopanela ha linate. Ka lehlakoreng le leng, hot-dip galvanizing hangata ho hlahisa liphahlo tse teteaneng, tse sa lekaneng tse tlatsang likhoele 'me li hloka linate tse kholo ho feta tekano. Ka hona, liboutu tsa Dacromet flange li ka bokelloa ka linate tse tloaelehileng ha li ntse li fana ka tse ikhethang khanyetso ea kutu le anti-rust tshireletso.

3.4 Botsitso bo Phahameng ba Mocheso le Tšireletso ea Mekhoa e Mengata

Liaparo tsa Dacromet li boloka tsona anti-corrosion ho tšepahala ho mocheso o phahameng (hangata ho fihla ho 250-300 ° C), e leng ea bohlokoa bakeng sa liboutu tsa flange haufi le lienjine, litsamaiso tsa mosi, kapa meaho e kantle. Ho roala ho fana ka tse 'nè tse tlatsetsang thibelo ea mafome mekhoa: (1) Tšireletso ea thibelo ho tloha ho li-flakes tsa zinc-aluminium tse fetang; (2) Tšireletso ea sehlabelo sa Galvanic ka zinki; (3) Phello ea ho itokisa ka ho tlatsa oxide ea tšenyo e nyane; le (4) Ho phahamisoa ke setlamo sa inorganic se thibelang ho tsoela pele ha kutu.

Dacromet Flange Bolts Selelekela se Feletseng (2)

4. Likopo tse Tloaelehileng tsa Dacromet Flange Bolts

Ka lebaka la bokhabane ba bona anti-corrosion le anti-rust thepa, liboutu tsa Dacromet flange li hlalositsoe haholo liindastering tse hlokang ts'epo ea nako e telele tlasa maemo a senyang:

Meaho e haufi le lebopo le lebopo: Litora tsa turbine tsa moea, sethala sa maoatle, marokho a lebopong le lits'ebeletso tsa boema-kepe li rua molemo ho tsoa ho setlolo se phahameng sa letsoai. khanyetso ea kutu.
Likoloi le lipalangoang: Chassis, suspension, exhaust, le li-fasteners tse ka tlas'a 'mele li hloka ho tšepahala thibelo ea mafomekgahlanong le letsoai la tsela le mongobo.
Phekolo ea lik'hemik'hale le lik'hemik'hale: Lihokelo tsa liphaephe le li-reactor flange li tobane le ts'oaetso ea lik'hemik'hale khafetsa; Dacromet e fana ka nako e telele anti-corrosion
Ho hlahisa le ho fetisa motlakase: Li-bolts tsa tora ea phetisetso le lisebelisoa tsa feme ea matla li itšetlehile ka Dacromet's anti-rusttshebetso dibakeng tse kantle.
Mechini e boima, temo le kaho: Lisebelisoa tse sebetsang mobung o mongobo, manyolo, kapa sepakapaka sa leoatle se itšetlehile ka Dacromet's khanyetso ea kutule nako e telele thibelo ea mafome.

5. Kakaretso ea Melemo le Qetello

Ho khetha liboutu tsa flange tse koahetsoeng ka Dacromet ho tlisa melemo e mengata e sebetsang:

E ntlafetse haholo khanyetso ea kutule anti-rust ts'ebetso ha e bapisoa le liaparo tse tloaelehileng tsa zinki.
Linako tse telele tsa ho lokisa le ho fokotsa litšenyehelo tsa bophelo ka lebaka la ho atolosoa thibelo ea mafome.
Tšebeliso e sireletsehileng holim'a liboutu tse matla a phahameng ntle le kotsi ea hydrogen embrittlement.
Ho boloka li-geometry tse nepahetseng tsa khoele bakeng sa kopano e tšepahalang le ho sebelisoa hape.
Ts'ebetso e ntle haholo tikolohong e tletseng letsoai, e mongobo, ea lik'hemik'hale le ea mocheso o phahameng.

Qetellong, liboutu tsa Dacromet flange li emela tharollo e tsoetseng pele, e sebetsang hantle bakeng sa baenjiniere le litsebi tsa tlhokomelo tse hlokang ho ts'epaha ha mochini le ho feta. anti-corrosion tshireletso. Ka motsoako o ikhethileng oa tšireletso ea litšitiso, ts'ebetso ea zinki ea sehlabelo, boits'oaro ba ho ipholisa, le takatso ea tlhaho, liphahlo tsa Dacromet li fana ka mokhoa o ikhethang. khanyetso ea kutu, e ikhethang anti-rust bokhoni, le nako e telele thibelo ea mafome. Ho sa tsotellehe hore na e sebelisoa ho li-turbine tsa moea tse lebōpong la leoatle, mochine oa likoloi, limela tsa petrochemical kapa thepa e boima ea indasteri, liboutu tsa Dacromet-coated flange li lula li feta mekhoa ea phekolo ea setso ka ho tšoarella le ho tšepahala.

Bakeng sa likhokahano tse mahlonoko tsa li-flange tse pepesehileng maemo a ts'ebeletso e senyang, ho hlakisa liboutu tsa Dacromet flange ke qeto e nepahetseng ea tekheniki e ntlafatsang polokeho, e fokotsang litšenyehelo tsa bophelo, le ho netefatsa boits'epo bo tšoarellang ba sebopeho ka maemo a holimo. khanyetso ea kutu le e ka tšeptjoang thibelo ea mafome.

Ha ke na. E latelang.

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