Anodizing: aluminium thiab nws alloys yog siv raws li anodes, thiab yog ua los graphite yog siv raws li cathodes. Nyob rau hauv ib tug tej yam concentration (xws li sulfuric acid, oxalic acid, chromic acid, thiab lwm yam) conductive tshuaj, los ntawm thov voltage thiab cov nyhuv ntawm hluav taws xob tam sim no, ib tug tej yam thickness (8-12um) txheej yog tsim rau ntawm qhov chaw ntawm lub ruaj, uas muaj zoo txhua yam khoom, hardness, corrosion kuj, hnav kuj, rwb thaiv tsev, adsorbability thiab thiaj li nyob.
1. Degreasing: organic kuab degreasing, dej raws li emulsification tu neeg sawv cev degreasing, electrochemical degreasing.
2. Tshuaj polishing: Ntxiv tshem cov av nyob rau ntawm qhov chaw ntawm txhuas thiab nws alloy nrog phosphoric acid, thiab tshem tawm cov lub ntuj oxide zaj duab xis nyob rau qhov chaw ntawm lub txhuas hlau, yog li ntawd lub txhuas substrate yog raug mus pab tom ntej anodization. Nyob rau tib lub sij hawm, lub polishing kuj muaj cov nyhuv ntawm leveling, uas muaj peev xwm ntxiv smooth qhov chaw ntawm lub workpiece tom qab Sandblasting, thiab tej kev ntxhib los mos yog zoo dua.
3. Zaubqhw dub zaj duab xis: Tom qab ntsev, ib tug dub-grey zaj duab xis (hlau xws li tooj liab, npib tsib xee, manganese, hlau, pob zeb ntais, thiab lwm yam, uas yog insoluble nyob rau hauv phosphoric acid) nyob rau ntawm qhov chaw ntawm lub workpiece, thiab ces kho nrog nitric acid.
4. Oxidation: Tus txheej txheem ntawm txoj kev ua ib tug oxide zaj duab xis nyob ib tug txhuas product (anode) nyob rau hauv qhov kev txiav txim ntawm ib tug applied tam sim no nyob rau hauv lub sib nug xov ntsha thiab tej s tej yam kev mob. Anodic oxidation, yog hais tias tsis teev, feem ntau txhais tau tias Anodizing sulfuric acid.
5. dyeing: dyeing yuav tsum tau ua sai li sai tau tom qab lub anode thiab tsis ntev lawm. Tom qab oxidation, ua tib zoo yaug tawm cov residual acid nrog dej txias (tsis txhob muaj cov kub sawv thiab daim nyias nyias yeej kaw).
6. Sealing: kub boiling dej ntsaws ruaj ruaj rau hauv lub qhov hws, thiab alumina combines nrog dej lwg me me mus rau daim ntawv hydrates, txoj kev muaju.
7. Kom Qhuav: qhov chaw cov khoom nyob rau hauv ib qhov cub nrog qhov cub kub teem rau ntawm 70 ° C. Muab sib khi kub yuav tsum tsis txhob yuav siab dhau heev lawm, txwv tsis pub cov zaj duab xis yog nws tej kab nrib pleb. Ua ntej ntxuav, nws yuav tsum tau ntxuav nrog dej kub yuav ua tau kom qhov kub ntawm lub workpiece yog li ntawd tsis txhob nrib pleb tshwm sim los ntawm lub workpiece heev txias.
Post lub sij hawm: Jan-09-2019