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Sumo pfupi

Anodized aruminiyamu kana aruminiyamu alloy zvigadzirwa zvinoiswa mu electrolyte mhinduro ye galvanization kurapwa, uye maitiro ekugadzira aruminiyamu oxide firimu pamusoro peiyo electrolysis inonzi anodized kurapwa kwealuminium nealuminium alloy.Mushure mekurapwa kweanodic oxidation, aluminium surface inogona kubudisa ma microns akawanda - mazana ema microns e oxide film. Inofananidzwa nefirimu ye oxide yakasikwa yealuminium alloy, kupikisa kwayo kwekuora, kusapfeka uye kushongedza zviri pachena kuti inovandudzwa uye inovandudzwa.

Bacial musimboti

Nheyo yeanodic oxidation yealuminium ndiyo musimboti we hydroelectrolysis.Kana magetsi apfuura, zvinotevera zvinoitika:
Pakathodhi, H2 inoburitswa seizvi: 2H + + 2e → H2
Paanode, 4OH-4E → 2H2O + O2, iyo okisijeni inonaya haingori molecular oxygen (O2), asiwo atomic oxygen (O) uye ionic okisijeni (O-2), kazhinji inoratidzwa semolecular oxygen mukuita.
Seanode, aluminium inoshongedzwa nekunaya kweokisijeni pairi kuita firimu reAl2O3 risina mvura: 2AI + 3[O] = AI2O3 + 1675.7kj Zvinofanira kutaurwa kuti haisi yose yeokisijeni inogadzirwa inopindirana nealuminium, asi imwe. yaro inonaya muchimiro chegasi.
Anodic oxidation yagara ichishandiswa zvakanyanya muindasitiri, sengealuminium CNC machining zvikamu.Mushure meanodized, aluminium CNC machining zvikamu zvinogona kuwana zvinoshamisa kutaridzika uye yakanaka antioxidant kugona.

Kune nzira dzakawanda dzekuisa mazita akasiyana, dzinogona kupfupikiswa sezvizvi:
Zvinoenderana nerudzi rwazvino, inogona kupatsanurwa kuita yakananga anodizing, kuchinjanisa anodizing, uye pulsed current anodizing, iyo inogona kupfupisa nguva yekugadzira kuti isvike pahukobvu hunodiwa, iyo firimu layer yakakora uye yunifomu uye dense, uye kushorwa kwecorrosion. inovandudzwa zvakanyanya.
Maererano ne electrolyte: sulfuric acid, oxalic acid, chromic acid, yakasanganiswa asidhi uye organic sulfonic acid mhinduro yemhando yemavara anodic oxidation.
Zvinoenderana nehunhu hwefirimu, inogona kukamurwa kuita firimu rakajairwa, firimu rakaoma (gobvu firimu), porcelain firimu, inopenya shanduko layer uye barriers layer ye semiconductor action.
Iyo anodizing nzira yeyakananga ikozvino electrosulfuric acid ndiyo inonyanya kufarirwa, nekuti inokodzera anodizing aruminiyamu uye yakawanda aruminiyamu alloys.Iyo firimu layer yakakora, yakaoma uye isingapfeki, uye iri nani inodzivirira ngura inogona kuwanikwa mushure mekuvhara gomba. firimu layer haina ruvara uye yakajeka, ine yakasimba adsorption kugona uye nyore coloring.Low processing voltage, shoma simba rekushandisa; Maitiro acho haadi kushandura kutenderera kwevoltage, izvo zvinoita kuti irambe ichigadzirwa uye inoshanda otomatiki otomatiki; Sulfuric acid haina kukuvadza. kupfuura chromic acid, yakakura kupa, yakaderera mutengo zvakanakira.