Anodized aluminium yog ib txoj kev kho saum npoo uas tsim cov txheej txheem oxide los ntawm kev tswj cov tshuaj tiv thaiv oxidation ntawm txhuas. Hauv qab no yog cov txheej txheem ntau lawm rau anodized aluminium:
1. Kev ntxuav qhov chaw ntawm cov khoom siv txhuas
Ua tib zoo ntxuav lub ntsej muag ntawm cov khoom siv txhuas kom tshem tawm cov roj, av, oxides, lossis lwm yam impurities. Qhov no tuaj yeem ua tiav siv cov tshuaj alkaline lossis lwm cov tshuaj ntxuav tshwj xeeb.
2. Anode electrolysis tank
Dai cov khoom siv txhuas hauv lub tank anode electrolysis, qhov twg muaj cov kua qaub dilute acid. Cov tshuaj no feem ntau yog cov kua qaub oxidant xws li sulfuric acid, oxalic acid, lossis phosphoric acid, vim tias lawv tuaj yeem tsim cov tshuaj electrochemical muaj zog thiab tsim cov txhuas oxides.
3. Kev siv hluav taws xob
Cov khoom siv aluminium coated nrog nyuaj anodized txheej yog muab tso rau hauv anodes (anode systems) nyob rau hauv electrolytic cell. Qhov ncaj qha sab nraud fais fab mov ntawm lub anode electrode yog high-voltage, thiab lub hwj chim sab hauv yog tsawg-voltage. Direct tam sim no yog nkag mus rau hauv lub anode electrode los ntawm ib tug tam sim no maub los, tsim ib tug hluav taws xob teb ntawm lub anode electrode thiab cov electrolyte ntawm oxidation cell. Cov khoom siv hlau ntawm cov khoom siv txhuas nws tus kheej dhau los ua cov anode, thiab anodic oxidation txheej yog tsim nyob rau hauv qhov hluav taws xob teb.
4. Cov tshuaj tiv thaiv oxidation
Kev siv hluav taws xob ncaj qha tam sim no hauv lub xov tooj ntawm tes anode electrolysis thiab tso lub anode electrode system nyob rau hauv ib qho kev daws teeb meem ntawm cov kua qaub oxidants xws li sulfuric acid, oxalic acid, los yog phosphoric acid tuaj yeem tsim cov txheej sib sib zog nqus thiab du oxidation uas tsuas yog tsim nyob rau hauv ib puag ncig no. Thaum lub sij hawm tus txheej txheem no, cov oxide ntawm lub anode nto yuav tsim oxide txheej nrog cov xim sib txawv thiab textures, xws li xim dub los yog zaj sawv.
5. Kev kho sealing
Tom qab anodizing, nws yog ib qhov tsim nyog los ua sealing cracking thiab tsim ib tug ruaj khov txheej tiv thaiv nyob rau saum npoo ntawm oxide txheej. Feem ntau, qhov no tuaj yeem ua tiav siv cov khoom siv xws li acetals, dej kub, lossis chav dej.
6. Kev tshuaj xyuas thiab ntim khoom
Thaum kawg ntawm cov txheej txheem tsim khoom, kev tshuaj xyuas zoo ntawm anodized aluminium yuav tsum tau ua kom ntseeg tau tias nws ua tau raws li cov qauv tsim nyog thiab cov kev xav tau zoo. Thaum kawg, pob thiab daim ntawv lo rau cov khoom siv txhuas rau kev thauj mus los.
Nyob rau hauv cov ntsiab lus, cov txheej txheem ntawm anodized aluminium tuaj yeem tsim cov kev kho mob ntawm aluminium nrog cov hardness siab, corrosion kuj, thiab zoo nkauj, thaum tseem yuav tsum tau nruj me ntsis ua raws li cov txheej txheem tsim thiab kev specifications.
