Boolal sida caadiga ah loo isticmaalo hababka daaweynta dushaoxidation, electrophoresis, electroplating, Dacromet afar qaybood, kuwan soo socda ayaa inta badan ah in la isku xiromidab ee daawaynta dusha sare ee soo koobida kala soocida.
- Madow oksaydh：
Waxaa loo qaybiyaa heerkulka qolka oo madow iyo heerkul sare oo madow, ilaa heerkulka qolka oo madoobaado tusaale ahaan geeddi-socodku waa: xaalufinta kiimikada - biyaha kulul dhaqidda - biyo qabow - saarista miridhku iyo xoqidda aashitada - nadiifinta - madow - nadiifinta - Saliid ama ka badan oo xiran. Waa lakabka filimka oksaydh ee ay sameeyeen sodium hydroxide iyo sodium nitrite oo heerkul sarreeya oo ka sarreeya 100 darajo.
Qaybta ugu muhiimsan ee filimka oxide waa tetraoxide birta (Fe3C4), isku-duubnaanta filimku waa 0.6-1.5um oo keliya, iska caabbinta daxalka waa mid liidata, haddii aan ka badnayn saliidda ama buufinta milixda dhexdhexaadka ah ee xiran kaliya 1-2 saacadood ama wax ka badan, saliidda 3-4 saacadood ama wax ka badan. Qalabyada yaryari ma isticmaalaan habkan wakhtiga bilaha ah. Ka soocan muuqaalka midabka, oksaydhka madow iyo zinc madow iyo electrophoretic madow ayaa u dhow, laakiin uma iftiimin sida zinc madow iyo midabka madow ee elektiroonigga ah.
- Galvanize：
Korantada madow waxay leedahay laba nooc oo zinc madow ah iyo nikkel madow, mabda'a geeddi-socodku asal ahaan waa isku mid, kaliya qaabaynta xalka korantada iyo daweynta ka dib oo leh xalal kala duwan oo kala duwan Zinc waa firfircooni kiimikaad, fududahay in la oxidise oo madoobaado jawiga, iyo ugu dambeyntii soo saaro daxalka 'daxalka cad', dajinta zinc ka dib daaweynta chromate si ay u daboosho lakabka zinc ee filimka beddelka kiimikada, si birta firfircooni ay ku jirto xaalad aan caadi ahayn, waa passivation ee lakabka zinc. Filimka Passivation ee muuqaalka ah waxaa loo qaybin karaa passivation cad (zinc cad), buluug khafiif ah (zinc buluug), passivation madow (zinc madow), passivation cagaaran military (zinc cagaaran) iyo wixii la mid ah.
- Electrophoresis madow：
Qaadashada habka elektiroonigga ah si ay u dhigato qayb ka mid ah kolloidal of resin organic on qaybo si ay u sameeyaan lakabka daahan organic of midabyo kala duwan, electrophoresis madow waxaa loo isticmaalaa in ka badan in industry ee, qaado habka madow sida tusaale ahaan: Dejinta-nadiifinta-phosphating-electrophoresis rinji-qallayl. Waxaa loo qaybin karaa electrophoresis anodic (resin ionisation galay ions taban) iyo electrophoresis cathodic (electrophoresis resin galay ions togan), iyo geeddi-socodka rinjiga marka la barbar dhigo waxqabadka dhismaha waa wanaagsan, wasakh iyo waxyeelo deegaanka si loo yareeyo ay iska caabin ah in waxqabadka buufin milix dhexdhexaad ah in 300 saacadood ama ka badan, kharashka iyo iska caabin daxalka iyo habka Dacromet la mid ah.
- Zinc cad：
Habka Electroplating waa: Dereasing - nadiifinta - activation acid daciif ah - electroplating zinc - nadiifinta - timaha passivation cad - nadiifinta - qalajin, iyo kala duwanaansho zinc madow waa wax ka badan lat rack iyo passivation xal kala duwanaansho, passivation cad waa filim aan midab lahayn oo zinc oxide ah, ku dhawaad ma chromium, si daxalka iska caabin ah marka loo eego zinc madow, zinc buluug ah, saaraha Zinc, midabka Zinc ee saacadaha 6, midabka Zinc 6 waa mid liidata. iyada oo la wanaajinayo saxnaanta saamiga xal-dhaafka ah ayaa la samayn karaa si looga hortago buufinta cusbada dhexdhexaadka ah ee ku saabsan saacadaha 20.
Sababtoo ah nooca zinc plating cad habka daaweynta dusha si ay u sameeyaan baaritaanka buufin milix dhexdhexaad ah markii hore ka soo muuqday dusha sare ee daxalka cad cad, ifafaale miridhku cas waa in ku saabsan 40 saacadood, sidaas darteed caabbinta daxalka zinc cad ayaa ka fiican nikkel cad. Muuqashada iyo nikkelka cad marka la barbar dhigo madow, zinc cad midabka asalka ah ee zinc-cagaaran-cad, iyo nikkel cad marka la barbar dhigo farqiga weyn.
- Nickel cad：
Habka daadintu waa: hoos u dhigista - nadiifinta - firfircoonida acid daciifka ah - nadiifinta - hoose ee naxaasta - firfircoonida - nadiifinta - electroplating nickel - Nadiifinta - passivation - nadiifinta - qalajinta - ama xiran, iyo habka nikkel madow asal ahaan waa isku mid, inta badan dahaadhka qaacidada xalku waa ka duwan yahay, ka yar zinc sulfide iyo join.Nickel waa bir huruud ah oo silver-cad ah, oo dhalaalaya, muuqaalka wanaagsan. Its caabbinta daxalka iyo nikkel madow ma aha farqi badan 6-12 saacadood, habka soo saarayaasha guud ayaa sidoo kale noqon doona in ka badan saliid ama xiran, sida ka fiirsan saamaynta daxalka ee qaybaha caag ah oo ka mid ah walxaha soo socda waa in loo isticmaalo sida diiradda saaraya in la xakameeyo iyo in kale.
- Zinc buluug, zinc cagaaran：
Nidaamku waxa uu la mid yahay sida zinc-ka cad, zinc-buluuggu waa filim zinc oxide ah oo la dhaafi karo oo ka kooban 0.5-0.6mg/dm2 oo ah chromium trivalent. Passivation cagaaran, oo sidoo kale loo yaqaan passivation shan-acid, waxay heli kartaa filim qaro weyn caws-cagaaran, xal passivation ka kooban yahay ions fosfate, filimka cawska dhalaalaya dhaldhalaalaya, kakan, qaab-dhismeed filim ilaalinta chromates iyo phosphates.
Si ay u adkaysato daxalka, zinc buluuga ah ayaa ka fiican zinc cad, halka zinc cagaaran uu ka fiican yahay zinc buluugga ah. Midabka buluuga ah ee buluuga ah waa buluug yar iyo zinc cad wuxuu ku dhow yahay warshadaha si ay u isticmaalaan wax badan, kan dambe ayaa sidoo kale loo isticmaali karaa naqshad alaabta marka habka beddelka ah ee boolal.
- Zinc la dhalaaliyay (kiimista)：
Qaybta galvanizing ee geeddi-socodka midabka midabka leh ee zinc waa iska caabin daxaleed oo aad u wanaagsan, geeddi-socodkeeda passivation midab leh waa: galvanizing - nadiifinta - 2% - 3% nitric acid oo ka baxsan iftiinka - nadiifinta - hoos u dhigista midabka midabka chromium - nadiifinta - Dubidda gabowga. Heerkulka Passivation aad ayuu u hooseeyaa, filimku waa gaabis, filim cirro leh oo khafiif ah. Heerkulka sare, filimku waa qaro weyn oo dabacsan, oo aan si adag u xidhnayn. Waxaa ugu wanaagsan in la xakameeyo qiyaastii 25 darajo si loo hubiyo in midab isku mid ah lagu helo wakhti go'an gudahooda.
Ka bacdi ka dib, waa in la dubay oo la da'a si loo hagaajiyo adkeysiga iyo iska caabinta daxalka ee filimka. Midabka buluuga ah ee zinc-plated by taabashada hoose ee iska caabbinta milix dhexdhexaad ah in ka badan 48 saacadood, xakamaynta wanaagsan ayaa la samayn karaa in ka badan 100 saacadood.
- Dacromet：
Waa soo gaabinta iyo tarjumaadda DACROMET, ie dahaarka ilaalinta cusbada chromium-ku-salaysan ee flaky, oo sidoo kale loo yaqaan daahan zinc-aluminium. Habka aasaasiga ah waa: hoos u dhigista - hoos u dhigista - daboolka - preheating - sintering - qaboojinta. Nidaamku wuxuu guud ahaan lahaan doonaa 2-4 jeer laga bilaabo daahan ilaa habka qaboojinta, sababtoo ah boolalyada leh daahan dhuuban sida si loo gaaro dhumuc gaar ah ayaa loo baahan yahay in la sameeyo marar badan.
Qaab dhismeedka wuxuu ku yaalaa dusha birta, oo lagu dahaadhay lakabka Dacromet (ie, oo ka kooban miisaanka zinc, aluminium [miisaanka guud ahaan cabbirka 0.1-0.2X10-15 microns] Cr03 iyo walxaha dabiiciga ah ee gaarka ah ee xalka aqueous isku dhafan ee aadka loo kala firdhiyo), by 300 ° C ama wax ka badan ilaalinta kulaylka dubista muddo go'an, chromium hechromium ayaa hoos u dhacay. taasoo keentay isku-dhafka koorama ee isku dhafan (nCr03) mCr203).
Iska caabbinta daxalka waa milix dhexdhexaad ah oo aad u wanaagsan ilaa 300 saacadood ama ka badan, faa'iido darrada daahan maaha mid la mid ah, booska khafiifka ah ee 5-10um, booska qaro weyn ee 40um ama wax ka badan, waxay saameyn doontaa qoto dheer ee dhexroorka boolal, sidaas darteed mashiinka dhejinta boolal iyo boolal leh dhexroor yar oo boolal ah ayaa aad u wanaagsan in aan la isticmaalin habka daaweynta Dacromet.
Waqtiga post: Seb-18-2024
