Amabara no gufunga firime ya anodic

Amabara no gufunga firime ya anodic

Aluminum hamwe na alloys yayo nyuma yo kuvura okidic oxdidation, yabyaye igice cya firime yamarana ya porous hejuru yacyo, nyuma yo gusiganwa no kuvurwa, urashobora guteza imbere amabara atandukanye, kandi urashobora kunoza indwara ya firime, kandi yambara ihohoterwa.

Igishushanyo cya Schematic cyibikorwa bya electrolytic:

 Amashanyarazi ya Oxide

(1) Ibara rya anorvoric

Ahanini adsorption kumubiri, ni ukuvuga molement pigment molekile zihishe hejuru ya microcous of the list kugirango yuzuye. Uburyo bwo gukoma amabara ntabwo ari bwiza, kandi guhuza substrate ni abakene, ariko ihohoterwa ryizuba nibyiza. Amarangi akoreshwa mu mabara ya anorvoric anortic agabanijwemo ubwoko bubiri, kandi icyuma nyuma ya okidic akwiye guterwa mu bwoko bubiri bw'ubwoko bwa okiside buhuye na shusho isabwa.

(2) Ibara rya Organic

 Urwego rugoye cyane, muri rusange rwiyemeza kuba umurambo wa adsorption na imiti. Amarira ya kama na alumina guhuza imiti ikurikirana, alumina na mallekiye molekile yitsinda kugirango ikore covorict; Alumina na Irangi Molekile mumatsinda ya Penolic kugirango ikore hydrogen; Alumina na barangi molekile kugirango zibeho. Dyestuffs organic ifite amabara menshi, ariko akagira urumuri rwizuba. Nibyiza gukoresha amazi yatoboye cyangwa amazi meza kugirango utegure igisubizo kirangiwe kuruta amazi ya robine, kuko Calcium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium na Magnesium bahuza na Molekile, izakora irangi ryibiti bishaje.

(3) Amabara ya electrolytic

ni okidic okiside ya aluminium hamwe nibisubizo bya electrolytic irimo umunyu wa electrolysis, binyuze mumashanyarazi ya electrolysis, kugeza kuri electrochemical yicyuma kuri pore kuri pore kumwanya udashyigikiwe no kubabara (Ishusho 5.10). Filime yamamara yabonetse nuburyo bwa electrolytic yubukorikori ifite ibyiza byo kurwanya amashusho ya abrasion, kurwanya izuba, itandukaniro ryubushyuhe, ibara ryinshi, kandi ubu rirashira kandi ubu rikoreshwa cyane mumyirondoro ya aluminiyumu. Voltage yo hejuru kandi igihe kinini gikoreshwa kuri amabara ya electrolytic, icyari cyijimye ibara kizaba.

 

Kuvura ikimenyetso cya firime ya oxide

Nyuma ya anodin of aluminiyumu nibikoresho byayo, nubwo byaba bifite amabara cyangwa atari ngombwa, birinda ubushuhe muri micropores, kandi icyarimwe, kunoza imitima yizuba, kurota izuba. Uburyo bwo hejuru burimo uburyo bushyushye bwamazi, uburyo bwamazi bwamazi, muburyo bwa sapedoo, hydrolysis uburyo bwo gushyiraho ikimenyetso no kuzuza uburyo bworoshye.

(1) Ihame ryuburyo bwamazi ashyushye

ni ugukoresha hydration ya amorphous al2o3: al2o3 + nh2o = al2o3-nh2o

Nihehe 1 cyangwa 3. Iyo Al2O3 Hydration ya Hydration Alumina Al2O3-H2O, Umubumbe wacyo urashobora kwiyongera hafi 33%; Yakozwe trahydte alumina al2o3-3h2o, Umubumbe wacyo wiyongereyeho hafi 100%. Nkibisubizo bya Hydration ya Al2O3 hejuru ya firime ya oxide hamwe nurukuta rwa pore, amajwi yongera kandi afunga filime pores.

Amazi ashyushye afunze kubushyuhe bwamazi ashyushye ya 90 ~ 100 ° C, PH 6 ~ 7.5, Igihe 15 ~ 30 min. Amazi afunze agomba kuvoka amazi cyangwa amazi meza, kandi ntashobora gukoresha amazi ya robine, bitabaye ibyo bizagabanya umucyo wa firime yamasaka na ibara.

(2) Ihame ryo gufunga amazi umwuka

Ni kimwe nuburyo bwo gufunga amazi ashyushye, ariko ingaruka nibyiza cyane, ariko ikiguzi kiri hejuru.

(3) Uburyo bwo gufunga Diichromate

Ikorwa muri potasiyumu yimisoro hamwe numutungo ukomeye wa okiside no ku bushyuhe bwinshi. Iyo ibice bya anodinum ya anodinum byagabujijwe, filime ya oxide hamwe nu myanda ya aluminium yinkuta za Pore ifite imiti ikurikira hamwe na potasium diichromate mubisubizo byicyerekana:

2al

Alkali aluminium chromate na alkali aluminite diiminum diichromat yakozwe na monohy ya alumina yabyaye molekile zishyushye hamwe na alumina funga micropores ya firime ya oxide. Imiterere hamwe nuburyo bwo gukemura igisubizo ni nkibi bikurikira: potasiyumu diichromate 50 ~ 70g / l; Ubushyuhe 90 ~ 95 ° C; Igihe 15 ~ 25 min; PH agaciro 6 ~ 7.

Filime ya oxide ifatwa nubu buryo ni umuhondo mu ibara kandi ifite imbaraga nziza. Birakwiriye gufunga nyuma yamagambo ya Aluminimu akoresheje intego yo kurinda, kandi ntabwo ikwiriye gufunga Filime yamashanyarazi yintego.

(4) Uburyo bwo gufunga Hydrolysis

Yerekeza kuri hydrolysis ikurikira nyuma yumuti wa dilute cyane wa Nikel Umunyu hamwe na SAbalt Umunyu watanzwe na firime ya oxide:

Ni2 + + 2h2o = ni (yewe) 2 + 2h +

CO2 + + 2H2O = CO (OH) 2 + 2H +.

Igikeli cyakozwe na Nikel Hydroxide cyangwa Callat yashyizwe muri micropores ya firime ya oxide, bityo ifunga intanga. Kuberako umubare muto wa nikel hydroxide na codroxide ya codalt ntabwo ari ibara ridafite ibara, bityo ubu buryo bukwiye cyane cyane gufunga firime yamarane.

(5) kuzuza uburyo bufunze

Usibye uburyo bwavuzwe haruguru bwasobanuwe, firime ya Anodic oxide nayo irashobora gukoreshwa ibintu kama, nka paraffin yo mu mucyo, indorerezi ishonga, ibisigazwa bitandukanye hamwe namavuta yumye, nibindi.