Waa maxay dahaarka-kulul ee caadiga ah?
Waxaa jira noocyo badan oo dahaarka-kuleyl ah oo loogu talagalay taarikada birta iyo xariijimaha. Xeerarka kala soocida ee heerarka waaweyn - oo ay ku jiraan Ameerika, Jabbaan, Yurub, iyo heerarka qaranka Shiinaha - waa isku mid. Waxaan ku falanqeyn doonaa anagoo adeegsanayna halbeegga Yurub EN 10346:2015 tusaale ahaan.
Dahaarka-kulul-kuleelka ee caadiga ah waxay u kala baxaan lix qaybood oo waaweyn:
- Zinc saafi ah oo kuleyl ah (Z)
- Daawaha zinc-iron-ga-kulul (ZF)
- Ku-kulul-kulul zinc-aluminium (ZA)
- Kulul-kulul aluminium-zinc (AZ)
- Kulul-kulul aluminium-silikon (AS)
- Zinc-magnesium-ku-kulul (ZM)
Qeexitaannada iyo sifooyinka kala duwan ee dahaarka kuleyliyaha kulul
Xariijimaha birta ee horay loo daaweeyay ayaa lagu dhex quusiyaa qubeys dhalaalaysa. Biraha dhalaalay ee kala duwan ee ku jira qubayska waxay keenaan dahaar kala duwan (marka laga reebo dahaarka dahaadhka zinc-iron).
Isbarbardhigga u dhexeeya Galvanizing-Dip-kulul iyo koronto-galvanization
1. Guudmarka Geedi socodka Galvanizing
Galvanizing waxa loola jeedaa farsamada daawaynta oogada ee lagu dabaqayo daahan zinc biraha, alloys-ka, ama agabka kale ee bilicda iyo ka-hortagga daxalka. Hababka ugu badan ee la adeegsado waa galvanizing-kulul iyo galvanizing qabow (electrogalvanizing).
2. Habka Galvanization-ku-kulul
Habka aasaasiga ah ee galvanizing dusha xaashida birta maanta waa galvanizing-kulul. Galvanization-ku-kulul (sidoo kale loo yaqaan daahan-kulul-kulul ama galvanization-kuleelka) waa hab wax ku ool ah oo ilaalinta daxalka birta ah, oo ugu horrayn loo isticmaalo tas-hiilaadka qaab dhismeedka biraha ee warshadaha kala duwan. Waxay ku lug leedahay galinta qaybaha birta ee miridhku-saaray ee zinc la dhalaaliyay qiyaastii 500 ° C, iyada oo la gelinayo lakabka zinc dusha birta si loo gaaro caabbinta daxalka. Socodka galvanizing-kulul: Dhaqidda aashitada oo dhammaatay → Biyo raacid → Codsiga qulqulka → Qalajinta → Laalaadinta dahaarka
3. Geedi socodka galvanization-ka-qabow
Galvanizing qabow, oo sidoo kale loo yaqaan electrogalvanizing, waxay isticmaashaa qalabka korantada. Ka dib marka la nadiifiyo iyo dhaqidda aashitada, qalabka tuubooyinka waxaa lagu dhejiyaa xal ay ku jiraan cusbada zinc waxayna ku xiran yihiin meesha taban ee qalabka korantada. Saxan zinc ah ayaa la dhigay ka soo horjeedka qalabka lagu rakibay oo lagu xidho terminalka togan. Marka awoodda la isticmaalo, dhaqdhaqaaqa toosan ee hadda ka imanaya togan iyo kuwa taban ayaa sababa in zinc ay ku shubto qalabyada. Xirmooyinka tuubooyinka galvanized-qabow waxay maraan farsamayn ka hor galvanization.
Heerarka farsamada waxay u hoggaansamaan ASTM B695-2000 (US) iyo qeexida millatariga C-81562 ee galvanization-ka farsamada.
Isbarbardhigga Galvanizing-kulul-ku-kulul vs. Galvanizing-Dhibaddii qabow
Galvanizing-ku-kululku wuxuu bixiyaa iska caabbinta daxalka oo aad uga sarreeya marka loo eego galvanizing-qabow (sidoo kale loo yaqaan electrogalvanizing). Daahan koronto-galvanized ah ayaa caadi ahaan u dhexeeya 5 ilaa 15 μm oo dhumucdiisuna tahay, halka dahaarka galvanized-ku-kululku guud ahaan ka sarreeyaan 35 μm oo ay gaari karaan ilaa 200 μm. Galvanizing-kululku wuxuu bixiyaa dabool heersare ah oo leh dahaar cufan oo xor ah oo ka mid ah waxyaabaha dabiiciga ah. Electrogalvanizing waxay shaqaaleysiisaa dahaar ka buuxo zinc si ay biraha uga ilaaliyaan daxalka. Xirmooyinkan waxaa lagu dabaqaa dusha la ilaaliyo iyadoo la adeegsanayo hab kasta oo daahan, samaynta lakabka zinc-buuxa ka dib marka la qalajiyo. Daahan qallalan waxaa ku jira maaddo zinc sare leh (ilaa 95%). Birta waxa lagu dahaadhay zinc dusheeda iyada oo ay jiraan xaalado la qaboojiyey, halka galvanization-ku-kululku ay ku lug leedahay dahaadhida tubooyinka birta ee zinc iyada oo la dhex gelinayo-kulul. Habkani waxa uu keenaa ku dheggan xoog leh, taas oo ka dhigaysa dahaarka mid aad u adkaysi u leh diirka.
Sidee lagu kala soocaa galvanizing-ku-kulul iyo galvanizing qabow?
1. Aqoonsiga Muuqaalka
Dusha sare ee galvanized-kulul ayaa u muuqda guud ahaan in yar oo qallafsan, oo muujinaya calaamado biyood, faleebooyin, iyo qanjidhyo-gaar ahaan laga dareemi karo hal daraf ee qaybta shaqada. Muuqaalka guud waa silvery-cad.
Sagxadaha Electrogalvanized (qabow-galvanized) waa siman yihiin, ugu horrayn midabka huruud-cagaaran, in kastoo iridescent, buluug-cad, ama caddaan leh dhalaal cagaaran ay sidoo kale muuqan karaan. Sagxadahan guud ahaan ma muujiyaan nodules zinc ama isku urursan.
2. Hannaanka oo lagu kala saaro
Galvanization-ku-kululku waxa ay ku lug leedahay tillaabooyin badan: hoos u dhigista, aashitada oo la soo guray, galinta kiimikaad, qalajinta, iyo ugu dambayntii dhex galinta zinc dhalaalaysa muddo cayiman ka hor intaan la saarin. Habkan waxa loo isticmaalaa shayada sida tuubooyinka galvanized-kululka leh.
Galvanizing qabow, si kastaba ha ahaatee, asal ahaan waa electrogalvanizing. Waxay isticmaashaa qalabka elektrolytic-ka ah halka qaybta shaqada ay marayso hoos u dhigista iyo soo saarista ka hor inta aan la jeexin xalka milixda zinc. Ku xidhan qalabka elektrolytka, workpiece wuxuu kaydiyaa lakabka zinc iyada oo loo marayo dhaqdhaqaaqa toosan ee hadda u dhexeeya electrodes togan iyo taban.
Waqtiga boostada: Oct-01-2025
