Waa maxay Beddelka Chromate Dahaarka/Alodine/Filimka Kiimikada?
Waqtiga wax akhrinta 3 daqiiqo
Hordhac
Daahan beddelka Chromate sidoo kale waxay u yaqaanaan daahan alodine ama filimka Chem, waa nooc ka mid ah daahan beddelka loo isticmaalo in lagu dhaafo aluminium, xaaladaha qaarkood birta, zinc, cadmium, copper, silver, titanium, magnesium, iyo alloys tin ayaa sidoo kale lagu dabaqi karaa.Habka passivation wuxuu abuuraa filim difaac ah oo ku yaal dusha sare ee guryaha, kaas oo ka ilaaliya daxalka.
Si ka duwan anodizing, daahan beddelka chromate waa daahan beddelka kiimikada.Daahan kiimikaad beddelaadda, falcelinta kiimikaad ayaa ka dhacda dusha sare ee birta, falcelintan kiimikaad waxay u beddeshaa dusha birta lakab difaac.
Dahaarka beddelka laftiisa ma aha mid korantada ku shaqeeya, marka lagu dabaqo si waafaqsan heerka 3 ee heerka MIL-DTL-5541.Dahaarka 3aad ee kiimikaad beddelka ayaa ka ilaaliya daxalka meesha iska caabbinta korantada yar looga baahan yahay.Xaaladdan oo kale, dahaarka laftiisa sidoo kale waa mid aan waxtar lahayn, laakiin sababtoo ah daahan beddelaadku wuu sii yaraanayaa, waxay bixisaa heer gaar ah oo koronto ah. la xidhiidh injineeradayadaWixii macluumaad dheeraad ah oo arrintan ku saabsan.
Dahaarka Chromate waa dahaarka ugu badan ee loo isticmaalo ilaalinta daxalka ee aluminium iyo aluminium alloys yaraynta oksidation dusha.Waxaa caadi ahaan loo isticmaalaajaakad hoose oo rinji ama dhejis ahiyada oo ay ugu wacan tahay sifooyinka wanaagsan ee isku xidhka ee ay bixiso.
Dahaarka beddelka chromate waxaa badanaa lagu dabaqaa shayada sida boolal, qalab iyo qalab.Caadi ahaan waxay siiyaan biro caddaan ama cawl ah oo si gaar ah u leh, midab cagaar-jaalle ah.
Noocyada/heerarka iyo qeexitaannada
| MIL-C-5541E sifada | ||
| Fasalada Chromate | • Fasalka 1A- (Jaalle) Si loo ilaaliyo ugu badnaan ee ka hortagga daxalka, rinji ama aan rinji lahayn. • Fasalka 3- (Caddaan ama Jaalle) Si looga ilaaliyo daxalka meesha iska caabbinta korantada yar looga baahan yahay. | |
| MIL-DTL-5541F/MIL-DTL-81706B sifooyin | ||
| Fasalada Chromate* | • Fasalka 1A- (Jaalle) Si loo ilaaliyo ugu badnaan ee ka hortagga daxalka, rinji ama aan rinji lahayn. • Fasalka 3- (Caddaan ama Jaalle) Si looga ilaaliyo daxalka meesha iska caabbinta korantada yar looga baahan yahay. | Nooca I- Halabuurka ka kooban chromium hexavalent;Nooca II- Waxyaabaha aan ka koobnayn chromium hexavalent |
| ASTM B 449-93 (2004) QAABKA | ||
| Fasalada Chromate | • Fasalka 1- Jaalle ilaa Brown, iska caabbinta daxalka ugu badan ayaa guud ahaan loo isticmaalaa dhammaadka kama dambaysta ah • Fasalka 2- Midab la'aan ama huruud ah, iska caabin daxalka dhexdhexaad ah, oo loo isticmaalo saldhigga rinjiga iyo isku xidhka caag • Fasalka 3- Midab la'aan, Qurxinta, iska caabbinta daxalka yar, iska caabin koronto oo hooseeya • Fasalka 4- Cagaar khafiif ah ilaa cagaar, iska caabin daxalka dhexdhexaad ah, oo loo isticmaalo saldhigga rinjiga iyo isku xidhka caag (lama sameeyo AST) | |
| Iska-caabbinta Korontada (Fasalka 3 Dahaarka) | <5,000 micro ohms halkii inji oo labajibbaaran sida loo dabaqay 10,000 micro ohms halkii inji labajibbaaran kadib 168 saacadood oo soo-gaadhista buufinta milixda ah | |
| Faa'iidooyinka Dahaarka Isku-beddelka Chromate | Saldhigga Rinjiga, Xabagta, iyo Dahaarka budada Iska caabinta daxalka Si fudud loo hagaajin karo Dabacsanaan Iska caabin Koronto oo hooseeya Dhisidda ugu yar | |
Dahaarka Beddelka Chromate wuxuu leeyahay faa'iidooyin badan
Marka lagu daro ilaalinta daxalka ee la xoojiyey, waxaa jira faa'iidooyin badan oo la taaban karo oo ku saabsan isticmaalka daahanka filimka chem oo ay ka mid yihiin:
- Qoryaha ugu habboon ee kaa caawin kara rinjiyeynta, koolada iyo kooyadaha kale ee dabiiciga ah
- Ka hortag faraha ka qaadista biraha jilicsan
- Codsiga degdega ah oo fudud ee la geliyo, buufin ama buraash
- Tallaabooyin ka yar inta badan hababka kiimikada sidaas darteed dhaqaale iyo kharash-ool ah
- Bixi xiriir koronto oo lagu kalsoonaan karo oo u dhexeeya qaybaha
- Dahaarka khafiifka ah, oo aan la qiyaasi karin, sidaas darteed ma beddelo cabbirka qayb
Iyadoo inta badan lala xiriiriyo daahan aluminium, daahan beddelka chromate sidoo kale waxaa lagu dabaqi karaa cadmium, copper, magnesium, silver, titanium iyo zinc.
Waa kuwee warshadaha ka faa'iideysan kara isticmaalka daahan filim kiimikaad?
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Waqtiga boostada: Abriil-18-2022