The anodizing mankhwala lagawidwa zinayi zofunika, amene ali pretreatment, chithandizo cha anodic oxidation, kupaka utoto wa cathodic oxidation, ndi organic zokutira mankhwala. Njira yeniyeni ndi iyi.

Kukongoletsa, pretreatment ndi zikuphatikizapo masitepe asanu.

  1. Chithandizo cha degreasing: Cholinga chake ndi kuchotsa mafuta odzola ndi dothi lina pamwamba pa mankhwala, pofuna kuonetsetsa kuti mu ndondomeko kutsuka alkali, dzimbiri pamwamba pa mankhwala ndi yunifolomu, kuti apititse patsogolo ubwino wa zinthu za okosijeni. Degreasing mankhwala zambiri ntchito ndi ndende ya 5-25% sulfuric acid, kutentha kutentha kwa 60-80c.
  2. Etching chithandizo: cholinga chake ndikuchotsanso dothi pamtunda wa mankhwala, ndi mankhwala pamwamba makulidwe a za 25-1000A chilengedwe okusayidi filimu kuchotsedwa, kotero kuti m'munsi zitsulo pamwamba poyera, kuti atsogolere kupita patsogolo kosalala kwa okosijeni ndi utoto, zambiri ntchito 40-80 madigiri NaOH yankho.
  3. Pickling mankhwala: cholinga chake ndikuchotsa zinthu zakuda zakuda zomwe zatsala pamwamba pa mankhwalawa pambuyo pakuwonongeka, kuti apeze pamwamba pazitsulo zowala.
  4. Chithandizo cha matting: cholinga chake ndi kupanga zotayidwa kapena zotayidwa popanda kuwala pamwamba kuti mapangidwe sanali glossy pamwamba mankhwala anodic makutidwe ndi okosijeni., mapangidwe a malo dzimbiri, Nthawi zambiri amagwiritsa ntchito 20-40c ammonium fluoride solution.
    5, kupukuta mankhwala: kuti athetse kuwonongeka kwa mawotchi ndi mawanga a dzimbiri pamwamba pa zinthu za aluminiyamu, kusintha pamwamba kusalala ndi kuya gloss zambiri kuti kupukuta mankhwala.

Anodizing mankhwala

Mfundo yofunika: Aluminiyamu cathodic oxidation kwenikweni ndi electrolysis ya madzi, pamene electrolysis madzi zimachitika O2- ma ion ndi anode aluminium reaction kuti apange aluminium oxide (Al2O3) General electrolyte kusankha sulfuric acid, acimiki a acimiki, phosphoric acid, oxalic acid, pafupifupi 0c sulfuric acid kupanga filimu yolimba ya porous oxide. Zida zosiyanasiyana zimakhudza kwambiri filimu ya oxide. Wa 6000 series pa (6063.6061.6065), osati zoteteza okusayidi filimu angapangidwe, komanso kujambula filimu ya oxide, ndi filimu yowala ya oxide, koma zitsulo zotayidwa za aluminiyamu, filimu yoteteza oxide ikhoza kupangidwa, koma utoto wa oxide filimu nthawi zambiri ukhoza kupanga mtundu wamphamvu.

Chithandizo cha utoto wa cathodic oxidation, pali njira zingapo zopangira utoto motere.

Electrolytic coloring njira.

Njira ndi: zigawo za aluminiyamu aloyi pambuyo anodic makutidwe ndi okosijeni amaikidwa mu electrolyte wa zitsulo mchere ndi electrolyzed kachiwiri., kotero kuti cations zitsulo mchere waikamo pansi wosanjikiza wa okusayidi filimu pinhole ndi akuda, ndipo mtundu wa bronze ndi mtundu wakuda ukhoza kupezedwa pochita ntchito, kawirikawiri ndi mchere wa Ni,Co,Sn ngati electrolyte, nthawi zambiri sulphate, AC electrolysis.

Njira yopaka utoto

Njira ndi: ikani zigawo za anodized aluminium alloy mu yankho lomwe lili ndi utoto, ndiye oxide film pinhole adsorption utoto ndi mitundu, Njira yopaka utoto filimu ya oxide yokhala ndi filimu ya sulfuric acid ndiyo yabwino kwambiri, pomwe utoto woyimira ndi ferrous ammonium oxalate (utoto wagolide wachikasu) cobalt acetate (mtundu wamkuwa) cathodic oxide filimu utoto pambuyo kufunika kusindikiza dzenje, pali njira ziwiri zazikulu.

  • Bowo lotsekera mchere wa Nickel: ndi kukana kwanyengo kwabwino.
  • Kutseka kwa madzi otentha: Cholakwika ndi chakuti utotowo ndi wosavuta kusefukira mukatseka dzenje lomwe limayambitsa kamvekedwe kosagwirizana.

Organic ❖ kuyanika chithandizo

Pambuyo cathodic makutidwe ndi okosijeni ndi mitundu mankhwala zotayidwa, kuti apititse patsogolo kukana kwake kwa dzimbiri komanso kutulutsa mphamvu, organic ❖ kuyanika chithandizo akhoza kuchitidwa.

Electrostatic zokutira

Atomize utoto ndi kukula kwa tinthu ting'onoting'ono ndikuwuphulitsa pamwamba pa chinthu chokutidwa kuti chikhale cholumikizidwa., zambiri kupanga particles utoto mlandu pa cathode choyamba, ndipo pa nthawi yomweyo ntchito 100KV DC voteji pa chinthu yokutidwa ngati cathode, utoto nthawi zambiri umasankhidwa kuchokera ku utomoni wa acrylic.

Electrophoretic zokutira

Mu amadzimadzi njira ya akiliriki utomoni, filimu okusayidi ntchito monga cathode ndi electrolysis ikuchitika ndi 200V DC voteji kuti okusayidi filimu TACHIMATA ndi organic ❖ kuyanika filimu.