Yuav ua li cas yog aluminium oxidized
Nov 26, 2022
1, kev kho degreasing: ua ntej kev kho cov txhuas profile, cov khoom siv txhuas profile yuav tsum tau degreased, thiaj li yuav tshem tawm cov roj tiv thaiv txheej ntawm cov txhuas profile, kom ntseeg tau tias qhov sib xws ntawm qhov chaw tom qab kev kho mob.
2. Acid etching kev kho mob: Tom qab degreasing aluminium profiles, nws yog ib qho tsim nyog yuav tsum tau ua cov kua qaub etching kho kom tshem tawm cov oxide ntawm qhov chaw ntawm aluminium profiles.
3, alkali etching kev kho mob: tom qab cov kua qaub etching kev kho mob mus nqa tawm alkali etching kev kho mob, lub hom phiaj tseem yog kom tshem tawm cov oxide nyob rau saum npoo ntawm txhuas profile thiab indentation tshuav nyob rau hauv cov txheej txheem extrusion.
4. Kev kho cov kua qaub sib xyaw: Tom qab cov kua qaub thiab alkali corrosion, yuav muaj cov hmoov tshauv seem ntawm cov khoom sib xyaw rau saum npoo ntawm aluminium profile, uas yuav tsum tau muab tshem tawm los ntawm cov kua qaub sib xyaw kom pom cov xim tseem ceeb ntawm aluminium profile.
Kev ceev faj rau kev kho aluminium oxidation
Lub workpiece tsis tsim nyog yog tsau rau lub fixture thiab anodized nrog txhuas, ces anodized rau 2 mus rau 3 feeb raws li cov txheej txheem ntawm anodizing txhuas nyob rau hauv aqueous sulfuric acid tov. Thaum cov zaj duab xis tau softened thiab tev tawm, ntxuav nws me ntsis nrog rye thiab ammonia. Thaum cov dej tawm los, nws tuaj yeem ua anodized dua.
Aluminium-cesium oxide thev naus laus zis, uas yuav tsum tau ntxuav lub workpiece nrog cov kuab tshuaj organic (cov yam ntxwv: ntshiab, tsis muaj xim) ua ntej hloov mus rau kev kho cua sov lossis vuam txheej txheem kom tshem tawm cov roj saum npoo, yog ib txwm muaj. Lub nto ntawm lub workpiece yog tsim vim nws yog tsis yooj yim sua. Lub coking roj-raws li sintering txheej (tus txheej txheem ntawm kev hloov cov hmoov khoom rau hauv ib qho khoom siv compact) uas yog ib qho nyuaj rau tshem tawm nrog cov kuab tshuaj organic thiab ua rau lub zos corrosion thaum immersed nyob rau hauv rye.
