Aluminium Alloy Surface Treatment: 7 Series Aluminium Hard Anodizing

1. Txheej txheem txheej txheem

Hard anodizing siv cov electrolyte sib xws ntawm cov hlau (xws li sulfuric acid, chromic acid, oxalic acid, thiab lwm yam) raws li cov anode, thiab ua electrolysis nyob rau hauv tej yam kev mob thiab thov tam sim no. Lub thickness ntawm cov tawv anodized zaj duab xis yog 25-150um. Cov yeeb yaj kiab nyuaj anodized nrog cov yeeb yaj kiab tuab tsawg dua 25um feem ntau yog siv rau qhov chaw xws li cov yuam sij hniav thiab kauv. Lub thickness ntawm feem ntau nyuaj anodized zaj duab xis yuav tsum yog 50-80um. Hnav-resistant los yog lub thickness ntawm cov anodized zaj duab xis rau rwb thaiv tsev yog hais txog 50um. Nyob rau hauv qee yam txheej txheem tshwj xeeb, nws tseem yuav tsum tsim cov yeeb yaj kiab nyuaj anodized nrog lub thickness ntawm ntau tshaj 125um. Txawm li cas los xij, nws yuav tsum raug sau tseg tias qhov tuab ntawm cov yeeb yaj kiab anodized, qhov qis dua qhov microhardness ntawm nws txheej txheej yuav yog, thiab qhov roughness ntawm cov zaj duab xis txheej yuav nce.

2. Txheej txheem yam ntxwv

1) Lub hardness ntawm aluminium alloy tom qab nyuaj anodizing tuaj yeem ncav cuag txog HV500;

2) Anodic oxide zaj duab xis thickness: 25-150 microns;

3) Muaj zog adhesion, raws li cov yam ntxwv anodizing generated los ntawm hard anodizing: 50% ntawm cov generated anodizing zaj duab xis nkag mus rau hauv lub aluminium alloy, thiab 50% adheres rau saum npoo ntawm aluminium alloy (bidirectional kev loj hlob);

4) Zoo rwb thaiv tsev: tawg voltage tuaj yeem ncav cuag 2000V;

5) Zoo hnav tsis kam: Rau aluminium alloys nrog cov ntsiab lus tooj liab tsawg dua 2%, qhov siab tshaj plaws hnav yog 3.5mg / 1000 rpm. Qhov coj ntsuas ntawm tag nrho lwm cov alloys yuav tsum tsis pub tshaj 1.5mg / 1000 rpm.

6) Non-toxic thiab harmless rau tib neeg lub cev. Cov txheej txheem electrochemical ntawm anodizing zaj duab xis kev kho mob siv rau kev tsim khoom yog tsis muaj teeb meem, yog li kev tiv thaiv ib puag ncig hauv ntau lub tshuab ua haujlwm, qee cov khoom siv nyuaj anodized aluminium alloy es tsis txhob stainless hlau, tshuaj tsuag tshuaj, tawv chromium plating thiab lwm yam txheej txheem.

3. Daim ntawv thov teb

Hard anodizing yog tsim rau cov cheeb tsam uas yuav tsum tau hnav tsis kam, kub tsis kam, thiab zoo rwb thaiv tsev ntawm aluminium thiab aluminium alloy qhov chaw. Xws li ntau yam cylinders, pistons, li qub, lub tog raj kheej liners, bearings, aircraft cargo compartments, qaij rods thiab qhia rails, hydraulic khoom, chav impellers, xis flatbed machines, zog thiab buffers, thiab lwm yam. Traditional electroplating ntawm hard chromium muaj cov yam ntxwv ntawm tsawg. tus nqi, tab sis qhov tsis xws ntawm cov yeeb yaj kiab no yog tias thaum cov yeeb yaj kiab tuab loj, nws cuam tshuam rau kev ua siab ntev ntawm cov neeg kho tshuab qaug zog ntawm txhuas thiab txhuas alloys.

Kho los ntawm May Jiang los ntawm MAT Aluminium