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

2026-10-16

1. Kenyelletso ea Dacromet Flange Bolts

Lits'ebetsong tsa morao-rao tsa indasteri, ho ts'epahala ha litsamaiso tsa ho tiisa ho bohlokoa. Har'a litharollo tse tsoetseng pele tse fumanehang kajeno ke Liboutu tsa Dacromet flange. Liboutu tsena tse ikhethileng li kopanya melemo ea mochini oa moralo oa flange le o ikhethang anti-corrosion le anti-rust thepa ea theknoloji ea ho roala ea Dacromet.

Bolt ea flange e na le letlapa le kopaneng la washer tlas'a hlooho. Moqapi ona o aba moroalo oa ho koala holim'a sebaka se seholoanyane, o fokotsa kotsi ea ho senyeha ha holim'a metsi, 'me hangata o felisa tlhokahalo ea washer e arohaneng. Ha bolt ena ea flange e tšoaroa ka Dacromet - e se nang electrolytic zinc-aluminium flake coating - e fetoha sekontiri se phahameng sa ts'ebetso se khonang ho mamella maemo a thata a senyang ka nako e telele.

Ho roala ha Dacromet, ho tsejoang hape e le zinc flake coating, ho fana ka tšireletso e ikhethang khahlanong le mafome le kutu. E hlalositsoe ka bophara bakeng sa liboutu tse matla haholo (Kereiti ea 8.8, 10.9, le 12.9) tse sebelisoang ho likoloi, kaho, tsa metsing, tsa matla a moea, le lits'ebetso tsa mochini oa indasteri moo ho roala zinki kapa ho futhumatsa metsi a chesang ho ka haellang.

Dacromet Flange Bolts Selelekela se Feletseng (1)

2. Dacromet Coating ke Eng?

Dacromet ke mokhoa o sa tsitsang, o thehiloeng metsing o entsoeng haholo-holo ka zinki le li-flakes tsa aluminium tse fanyehiloeng ka har'a setlamo se nang le chromium. Ho roala ho sebelisoa ka mekhoa ea dip-spin, spray, kapa dip-drain ebe e phekoloa ka mocheso o phahameng (ka tloaelo 300-320 ° C). Ts'ebetso ena e theha mokoallo o mosesaane, o teteaneng, o nang le mefuta e mengata (hangata 4-8 μm e teteaneng) e tlamahanang ka lik'hemik'hale le substrate ea tšepe ea bolt.

Ho fapana le electroplating e tloaelehileng, ts'ebetso ea Dacromet ha e kenyeletse ho phunya acid kapa electrolysis. Ka lebaka leo, e ea hlahisa ha ho na hydrogen embrittlement kotsi - monyetla oa makhaola-khang bakeng sa liboutu tse phahameng tse tlamehang ho boloka bots'epehi ba sebopeho tlas'a phallo e phahameng ea pele le cyclic loading.

Dacromet Flange Bolts Selelekela se Feletseng (2)

Litšobotsi tse ka sehloohong tsa ho roala ha Dacromet ka li-Bolts

Khanyetso e phahameng ea corrosion: Ka tloaelo e feta lihora tse 1,000 tsa tlhahlobo ea ho se nke lehlakore ka letsoai (ASTM B117 / ISO 9227) ntle le mafome a khubelu.
Filimi e nyane le e ts'oanang: Ke 4-8 μm feela e botenya, e bolokang khoele e mamellang hantle ea bolt.
Ho hanyetsa mocheso o phahameng: E boloka ts'ebetso ea ts'ireletso ho fihlela ho 300 ° C ts'ebeletso e tsoelang pele.
E babatsehang khanyetso ea lik'hemik'hale: E hanela matsoai a litsela, maro a likoloi, li-acid tse bobebe, le moea oa indasteri.
Khohlano e laoloang: Kamano e tsitsitseng ea torque-tension bakeng sa ho tiisa bolt e tšepahalang.
Ponahalo ea tšepe ea silevera-grey: Qetello e sa lekanang, e matte eo le eona e ka pentang.

3. Melemo ea Dacromet Flange Bolts

Li-bolts tsa Dacromet flange li fana ka motsoako o ikhethang oa melemo ea ts'ireletso ea mochini le holim'a metsi e etsang hore e khethehe ho feta liboutu tse tloaelehileng tse koahetsoeng libakeng tse hlokang.

Tshebetso e Ikgethileng ya ho Thibela kutu le ho Thibela Rust

Sebopeho sa li-flake tsa zinc-aluminium tse ngata tsa Dacromet se etsa hore ho be le phello e thibelang le ho etsa sehlabelo. Mokhoa ona o habeli o fana ka 7 ho isa ho makhetlo a 10 ho hanyetsa ho bola ha liphahlo tse tloaelehileng tsa motlakase. Li-bolts tsa boleng bo phahameng ba Dacromet flange li ka finyella lihora tse fetang 1,200 tsa ho hanyetsa letsoai ntle le ponahalo ea mafome a khubelu, ho netefatsa tšireletso ea nako e telele e khahlanong le mafome esita le libakeng tsa litsela tse lebōpong la leoatle, leoatleng, kapa le letsoai haholo.

Ha ho Kotsi ea ho Embrittlement Hydrogen

Li-bolts tse matla haholo (haholo-holo Kereiti ea 10.9 le 12.9) li kotsing e kholo ea ho khabisoa ha hydrogen ha li sebetsoa ka mokhoa o tloaelehileng oa electroplating. Ts'ebetso ea Dacromet e felisa ho bokella acid le ho beoa ha electrolytic, ho qoba ka botlalo kenyelletso ea haedrojene. Sena se etsa hore Dacromet e be seaparo se ratoang bakeng sa liboutu tsa flange tse bohlokoa tsa sebopeho le polokeho.

Thin Coating Sireletsa Khoele Fit

Ka botenya bo tloaelehileng ba 4-8 μm feela, ho roala ha Dacromet ha ho fetole boholo ba bophara ba likhoele tsa bolt. Sena se lumella tšebeliso ea linate tse tloaelehileng ntle le tlhokahalo ea overtapping, eo hangata e hlokahalang bakeng sa liphahlo tse teteaneng tse chesang tse chesang. Sephetho ke ho sebelisana ho betere, ho kenya tšebetsong pele, le ho kopanya liboutu tsa flange ha bonolo.

4. Papiso ea Ts'ebetso ea Bolt Coatings

Tafole e latelang e bapisa Dacromet le likhoele tse tloaelehileng tse sebelisoang libotong:

Thepa	Dacromet	Elektro-Zinc Plating	Hot-Dip Galvanizing
Botenya ba ho roala	4–8 μm	5–15 μm	40-80 μm
Ho hanyetsa Spray Spray (ho mafome a khubelu)	≥ 1,000–1,200 h	100–300 h	500–800 h
Kotsi ea Hydrogen Embrittlement	Ha ho letho	E phahame (e hloka ho baka)	Mahareng
Ho hanyetsana le Mocheso o Phahameng	Ho fihlela ho 300°C	≤ 120°C	≤200°C
Khoele Fit Compatibility	E ntle haholo (linate tse tloaelehileng)	E ntle	E hloka overtapping
Ho Tšoaneleha Bakeng sa Li-Bolts tse Matla a Phahameng	E loketse (10.9 / 12.9)	Moedi	E itekanetseng

Letlapa la 1. Ts'ebetso ea ho bapisa ea phekolo e tloaelehileng ea holim'a bolt.

5. Litaelo tsa Khetho bakeng sa Dacromet Flange Bolts

Ha u hlakisa liboutu tsa Dacromet flange bakeng sa projeke, nahana ka lintlha tse latelang ho netefatsa ts'ebetso e nepahetseng ea anti-corrosion le ts'epahalo e kopaneng:

1. Ho senyeha ha tikoloho: Ho pepeseha ha lebōpo la leoatle, leoatle, indasteri, kapa letsoai la litsela hangata ho lokafatsa liphahlo tsa Dacromet tsa Sehlopha sa B kapa tse phahameng.

2.Bolt matla kereiti: Bakeng sa Grade 10.9 le 12.9 flange bolts, Dacromet e khothaletsoa ka matla ho felisa kotsi ea ho hlahisa hydrogen.

3.Tlhahiso ea mocheso: Likopo tse atamelang 250-300 ° C li rua molemo ho botsitso ba mocheso oa Dacromet.

Litlhoko tsa 4.Torque-tension: Hlalosa topcoat e tlositsoeng (mohlala, PLUS® kapa DACROLUB®) ha taolo e nepahetseng ea ho jara e le bohlokoa.

5.Ho lumellana le likarolo tsa ho nyalana: Dacromet e bonts'a ho lumellana hantle ha bimetallic le likarolo tsa aluminium, ho fokotsa kotsi ea galvanic corrosion.

6. Qetello

Li-bolts tsa Dacromet flange li emela tharollo e tsitsitseng e hōlileng ka ho fetisisa, e sebetsang ka nako e le 'ngoe e sebetsanang le botšepehi bo kopanetsoeng ba mochine le tšireletso ea nako e telele ea holim'a metsi. Ka ho kopanya melemo ea ho aba mojaro oa hlooho ea flange le e hlahelletseng anti-corrosion le anti-rust thepa ea coating ea zinc-aluminium flake, liboutu tsena li fana ka ts'ebeletso e tšepahalang libakeng tse mabifi ka ho fetisisa.

Lintlha tsa bohlokoa tse nkiloeng bakeng sa baenjiniere le litsebi tsa ho reka thepa li kenyelletsa:

Dacromet e fana ka makhetlo a 7-10 ho hanyetsa kutu ea ho roala ha li-electro-zinki tse tloaelehileng ha li ntse li le tšesaane ka ho lekaneng ho boloka likhoele tse tloaelehileng.
Ts'ebetso e seng ea electrolytic e felisa ka ho feletseng hydrogen embrittlement, e etsa hore e be e loketseng bakeng sa liboutu tsa flange tse matla haholo.
Botsitso bo botle ba mocheso o phahameng (ho fihla ho 300 ° C) le ho hanyetsa lik'hemik'hale ho eketsa menyetla ea kopo.
Moralo o kopaneng oa flange o nolofatsa kopano mme o ntlafatsa ts'ebetso e kopaneng tlasa vibrate le cyclic loading.

Ho sa tsotellehe hore na li sebelisoa ho chassis ea likoloi, li-turbine tsa moea tse lebōpong la leoatle, lisebelisoa tsa mabopo, kapa thepa e boima ea indasteri, li-bolts tsa Dacromet flange li fana ka tsela e tiisitsoeng ea bophelo bo bolelele ba tšebeletso, tlhokomelo e fokotsehileng, le ts'ireletso e ntlafetseng. Ho hlakisa boemo bo nepahetseng ba Dacromet le ho netefatsa taolo e nepahetseng ea boleng ho tla eketsa melemo e khahlanong le mafome le anti-corrosion eo liboutu tsena tse tsoetseng pele li etselitsoeng ho fana ka tsona.

Ha ke na. E latelang.

Litaba tsa morao-rao