Yuav ua li cas kom zoo anodize aluminium

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Mass ntau lawm ntawm txhuas cov qauv thiab qhov chaw yog vim qhov tshwj xeeb ntawm cov khoom siv no. Nws muaj qhov tsawg kawg nkaus lub ntiajteb txawj nqus, yog resistant mus rau ntau aggressive ib puag ncig thiab yog ib qho yooj yim rau txheej txheem. Tab sis rau kev ua haujlwm ntev ntawm cov khoom, nws yog qhov tsim nyog los anodize aluminium.

Vim li cas thiaj tsim nyog

Thaum lub sijhawm sib cuam tshuam ntawm cov hlau nrog cov pa oxygen uas muaj nyob hauv qhov chaw, txheej txheej saum toj kawg nkaus yog oxidized rau ntawm qhov chaw. Qhov no yog hu ua qhov tsim ntawm oxide zaj duab xis, uas tiv thaiv xeb los ntawm kev sib sib zog nqus mus rau hauv cov hlau.

Zoo ntawm cov khoom siv, cov txheej txheem oxidation saum npoo yuav siv qhov chaw sib txawv. Hlau thiab hlau xyaum tsis tsim cov yeeb yaj kiab oxide, tab sis cov hlau muaj txiaj ntsig (kub, nyiaj, platinum) raug tiv thaiv los ntawm corrosion. Aluminium occupies ib tug nruab nrab txoj hauj lwm, yog li ntawd, nws xav tau ib tug dag creation ntawm ib zaj duab xis. Qhov no yog qhov tseem ceeb tshwj xeeb yog tias qhov profile zoo sib xws yog siv hauv kev tsim cov qhov rais. Anodized aluminium yog resistant rau cov huab cua sab nraud, uas tuaj yeem ua rau corrosion thiab poob ntawm kev ua haujlwm sai.kev tsim kho vaj tse.

Technology

Yuav kom muaj cov yeeb yaj kiab tiv thaiv zoo los ua rau ntawm qhov profile, nws yuav tsum tau anodize aluminium. Cov ntsiab lus ntawm cov txheej txheem yog kev hloov ntawm cov molecules ntawm lwm cov khoom, uas yog ntau resistant rau oxygen, rau hauv cov qauv ntawm cov khoom. Tsis tas li ntawd, nws muaj peev xwm ua kom cov txheej txheem oxide nce ntxiv yam tsis tau ntxiv lwm cov hlau.

Txawm hais tias xaiv txoj kev twg, nws yuav tsum ua kom tiav cov txheej txheem rau kev ua tiav cov txheej txheem thev naus laus zis. Nws muaj cov kauj ruam hauv qab no:

1. Preparatory.
2. txheej txheem Anodizing.
3. Kev ruaj ntseg interlayer.

Rau txhua tus ntawm lawv, cov khoom tsim nyog thiab cov khoom siv tau raug xaiv. Cov txiaj ntsig yuav tsum yog cov khoom zoo anodized aluminium. Qhov no yuav ua rau nws muaj peev xwm siv tau qhov profile rau kev tsim cov facade thiab qhov rais.

Npaj theem

Qhov saum npoo ntawm cov khoom yog ntxuav kom huv si ntawm plua plav, av thiab khib nyiab. Yog tias muaj qhov tsis sib xws lossis kev puas tsuaj, lawv raug tshem tawm txawm tias ua ntej anodizing. Tom ntej no, tshem tawm cov txheej txheem oxide qub, txwv tsis pub nws yuav tiv thaiv kev tsim ntawm cov yeeb yaj kiab tiv thaiv.

Tom qab kev siv tshuab (sib tsoo thiab degreasing), qhov profile yuav tsum muab tso rau hauv cov tshuaj alkaline. Txhawm rau kom zoo anodize aluminium, koj yuav tsum xub "etch" nws saum npoo. Kev tsim ntawm microcavities thiab irregularities nce tag nrhothaj tsam ntawm cov txheej txheem tiv thaiv. Tom ntej no, cov khoom tau qhia meej hauv cov kua qaub. Thaum ua tiav ntawm txhua theem, txhuas yuav tsum tau muab yaug kom huv si.

Anodizing

Tom qab dhau theem kev npaj, koj tuaj yeem pib txheej txheem anodizing. Ua li no, cov khoom siv txhuas yog muab tso rau hauv chav da dej tshwj xeeb. Cov txheej txheem yog ua los ntawm cov khoom siv crane (rau cov qauv loj) lossis manually siv cables.

Txog kev tsim lub da dej yuav tsum tau hais cais. Nws yog ib lub thawv loj ua los ntawm tuab-walled stainless hlau, nyob rau hauv uas 2 cathodes muab tso rau. Lub profile immersion technology yuav tsum yog xws li tias cov electrolyte nyob rau hauv da dej yog nyob rau hauv kev sib cuag nrog tag nrho cov cheeb tsam ntawm cov khoom. Sulfuric acid yog siv raws li cov kua, uas imposes tshwj xeeb cov kev cai ntawm kev ruaj ntseg ntawm ntau lawm. Yog hais tias cov khoom muaj ib tug complex configuration, ces nws yog zoo dua los siv oxalic acid.

Tom qab qhov profile yog immersed los ntawm electrolysis, txheej tiv thaiv pib tsim. Nws cov thickness ncaj qha nyob ntawm cov electrolyte muaj pes tsawg leeg, kub thiab tam sim no ceev. Qhov siab dua qhov ntsuas tom qab, ntau oxide zaj duab xis yuav tsim rau ntawm qhov chaw. Tom qab ua tiav cov txheej txheem, txheej txheej thickness tuaj yeem sib txawv ntawm 2 mus rau 7 microns, nyob ntawm cov txheej txheem thev naus laus zis.

Kev ruaj ntseg

Txawm li cas los xij, nws tseem ntxov dhau los nres anodizing aluminium - nws yog qhov tsim nyog los txhim kho cov txheej txheej saum npoo. Nws yuav muab cov qauv ntxeem tau, uas, tsis muaj kev ua, sai saitev tawm. Tsis tas li ntawd, nws tsis muaj qhov zoo hardness yam ntxwv.

Kho tuaj yeem ua tiav los ntawm kev tso cov khoom hauv dej tshiab coj mus rau lub rhaub. Raws li lwm yam thev naus laus zis, qhov saum npoo yog kho nrog chav kub. Txawm li cas los xij, oxide zaj duab xis yog kho thiab molecularly khi rau ntawm txhuas nto.

Yog tias qhov profile tau pleev xim rau yav tom ntej, ces kho tuaj yeem tshem tawm. Raws li cov thev naus laus zis ntawm kev siv cov hmoov xim, zaj duab xis yuav raug tiv thaiv los ntawm kev kho cua sov.

Peb pom tias anodized aluminium yog dab tsi. Xws li kev ua hlau yog qhov lav tiv thaiv cov tsos ntawm xeb ntawm qhov chaw ntawm cov khoom. Anodizing thev naus laus zis tau txhim kho tas li, thiab niaj hnub no nws tuaj yeem pleev xim rau cov khoom siv txhuas siv cov tshuaj tiv thaiv cathodic.