Coloring et signantes Anodic cadmiae films
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Coloring et signantes Anodic cadmiae films

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Coloring et signantes Anodic cadmiae films

Aluminium and its alloys after anodic oxidation treatment, generated a layer of porous oxide film on its surface, after colouring and sealing treatment, you can get a variety of different colours, and can improve the corrosion resistance of the film, wear resistance .

Schematic Diagram de Electrolytic Coloring Processus:

未 I


 Oxide film coloring



(I) Inorganic pigmento coloring

Maxime corporalis adsorption, id est inorganic pigment moleculis sunt adsorbed super superficiem microporous de film iacuit ut impleta. Modus coloris non est splendida et compositum cum subiecto pauper est, sed sole resistentia est melior. Dyes usus est in inorganicis pigmento coloring dividitur in duas species et metallum post anodic oxidatio debeat importned in duas species solutions usque ad numerum reactivam products (pigmentis advenit requiritur ad oxidized amet film est requiritur in in oxidized film occurrit requiritur.



(II) Organic Dye Coloring

 Et mechanism est complex, plerumque crediderunt habere physica adsorption et eget elit. Organicum tinctura moleculis et alumina eget compositum ex his modi alumina et tinctura moleculis in phenolic coetus ad formare covalent vincula; Alumina et mori moleculis in phenolic coetus ad formare hydrogenii vincula; Alumina et tinctura moleculis ad formam complexorum. Organicum dyestuffs habere lateque de splendida colores, sed pauper solis resistentia. Melius utitur aquam aut deionised aquam praeparare tincto solutio quam ICTUS aqua, quia calcium et magnesium ions in ICTUS aqua componi cum mori moleculis ad formam coordinatio componitur, quod dyeing solutio obsolet.



(III) Electrolytic Coloring

Anodic oxidatio est aluminium et eius Alloys in electrolytic solutio continens metallum sales ad electrolysis, per electroymical reactionem, ita ut metallum metallum, deposita in fundo in non-rara iacuit et in fundo de pore in non-rara iacuit et in fundo de pore in non-rara iacuit et in fundo de pore in non-rara iacuit et coloris (figuram 5.10). Et coloris cadmiae amet adeptus per electrolytic fuco processus habet commoda boni abrasion resistentia, solis resistentia, æstus resistentia, corrosio resistentia et stabilis et longa colore, et iam late in aluminium profiles ad architecturae ornamentum. In altiorem voltage et iam usus est electrolytic fuco, et obscurior color erit.


 

Signatio Treatment of Oxide amet


After anodic oxidation of aluminium and its alloys, no matter whether it is coloured or not, it is necessary to carry out the sealing treatment in time, the purpose of which is to fix the dyes in the micropores, preventing the exudation, and at the same time, improve the film's abrasion, sunlight, corrosion and insulating properties. Obsinting modi includit calida aquae signantes modum, aqua vapor signa methodo, dichromate signantes modum, hydrolysis signa modum et impletionem signantes modum.


(I) De principium calida aquae signantes modum

est ut hydratationis de Amorphous Al2o3: Al2o3 + NH2O = Al2o3, NH2O

Ubi I vel III. Cum al2o3 hydratationis ad hydrated alumina Al2o3, H2O, eius volumine potest crescere circiter XXXIII%; Generated triphydrate alumina al2o3-3h2o, eius volumine auctus circiter C%. Ut ex hydratationis Al2o3 super superficiem et cadmiae film et pore murum, volumen crescit et claudit in film poros.

Calor aqua clausa processus ad calidum aqua temperatus de XC ° C ° C ° F Africa, PH VI ~ 7.5, tempus XV ~ XXX min. Closed aquam debet distillant aquam aut deionised aquam, et non utor ICTUS aqua, aliter redigendum diaphanum et cadmiae amet colorem.


(II) De principle aqua vapor Agricola modum

Idem est calida Agricola modum, sed effectus est multo magis, sed sumptus est altior.



(III) Dichromate Agricola modum

Ferri potassium dichromate solutio fortis oxidising proprietas et altior temperatus. Cum autem Anodized Aluminium pieces pascuntur in solution, et cadmiae film et aluminium cadmiae de pore muros in sequentibus eget reactionem cum potassium dichromate in aqueum solution:


2Al2o3 + 3k2Cr2o7 + 5H20 = 2AlohCro4 + 2AlohCr2o7 + 6koh

Alkali aluminium chromate et alkali aluminium Dichromate praecipitia generatae et alumina monohydrate et alumina trihydrate generatae a calida aqua moleculis simul cum Alumina sigillum micropores in axide film. Formula et processu condiciones ad signationem solution sunt ut sequitur: Kalium dichromate L ~ 70g / l; XCV ° C XCV ° C; Tempus XV ~ XXV min; PH valorem VI ~ VII.

Et cadmiae film tractata per hoc modo est flavo colore et bonum corrosio resistentia. Est idoneam ad Agricola post Anodic oxidatio Aluminium Alloy ad praesidium, et non idoneam ad Agricola fuco coloris cadmiae film ad ornamentum.


(IV) Hydrolysis Agricola modum

Refers to sequenti hydrolysis reactionem post maxime dilutum solutio nickel sal et Cobalt sal est adsorbed a cadmiae film:


Ni2 + + 2h2o = Ni (o) II + 2h +

CO2 + + 2H2O = Co (O) II + 2h +.

Et generatae Nickel hydroxide vel Cobalt hydroxide deposita in microformis et cadmiae film, ita claudendo poris. Quia parum de Nickel hydroxide et Cobalt hydroxide est fere hydroxide, sic est maxime idoneam ad Agricola colore cadmiae cadmiae.

(V) Filling clausa modum

Praeter supra descripsit modum, anodic cadmiae potest etiam utendum organicum substantiae, ut transparent potest et varnish, fis paraffin, variis resinam et arida olea, etc. clausit.



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