Anodizing yog dab tsi?

Anodizing yog cov txheej txheem electrochemical uas ua rau muaj kev hloov pauv ntawm cov hlau saum npoo rau hauv cov tawv nqaij, pom qhov muag pom kev, corrosion-resistant finishes characterized los ntawm anodic oxide txheej. Thaum txhuas yog qhov tseem ceeb ntawm kev sib tw rau anodizing, lwm yam hlau tsis muaj hlau zoo li magnesium thiab titanium kuj tuaj yeem raug kho qhov no.

Cov qauv anodic oxide yog tsim los ntawm cov txheej txheem aluminium substrate, uas tsuas yog ua los ntawm txhuas oxide. Tsis zoo li cov xim los yog plating, cov txhuas oxide no tsis zaum saum npoo tab sis dhau los ua ib feem ntawm cov txhuas substrate. Qhov kev koom ua ke no ua kom ntseeg tau tias cov anodic oxide tsis tuaj yeem nti lossis tev, muab cov kav ntev. Tsis tas li ntawd, nws cov txheej txheem ua kom zoo nkauj ntxeem tau tso cai rau cov txheej txheem ntxiv xws li xim thiab sealing.

Txhawm rau nqa tawm anodizing, aluminium yog muab tso rau hauv lub da dej electrolyte uas muaj cov kua qaub. Los ntawm kev hla cov hluav taws xob tam sim no los ntawm qhov nruab nrab, lub cathode tau muab tso rau hauv lub tank anodizing. Cov txhuas ua lub luag haujlwm ntawm cov anode, ua rau cov pa oxygen ions raug tso tawm ntawm cov electrolyte. Cov ions no ces sib sau ua ke nrog cov txhuas atoms tam sim no nyob rau saum npoo ntawm cov khoom uas ua rau anodization. Yog li, anodizing yog qhov tseem ceeb ntawm cov txheej txheem oxidation tswj, ua kom muaj qhov tshwm sim tshwm sim.