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Anodized aluminium and aluminium alloys

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    Anodic oxidation is the process of forming decorative and protective films on the surfaces of aluminum and its alloys. In principle, the process of forming an oxide film on aluminum is actually an electrochemical reaction in which an electric current is applied at a sufficient voltage to a suitable electrolyte to form a porous oxide film on the surface of aluminum. Anodizing, unless otherwise specified, usually means anodizing sulfuric acid.

    Oxidation type of aluminum alloy CNC machining parts

    Type Ichromic acid anodizing,Conventional oxide file was formed in chromium acid tank 
    Type IBchromic acid anodizing,Low voltage process,22±2V 
    Type ICAnodic oxidation of non-chromic acid, using a non-chromic acid formula to generate class I and IB oxide films   
    Type IIAnodic oxidation of non-chromic,Conventional oxide film foemed in sulfuric acid tank
    Type IIBSulfuric acid anodized film ,Conventional oxide film produced using a non-chromic acid formulation
    Type IIIhard anodizing
    Class 1Non-staining
    Class 2staining

    Xavier in its anodized capacity

    ◆ substrate: aluminum and aluminum alloy

    ◆ Reference Standard M I L-A-8625F

    ◆ Film thickness range:

    Coating typeI、IB、IC、IIBIIIII
    Thickness range(m)0.5~17.81.78~25.412.7~114.3

    ◆ other processes: sandblasting,chemical sanding,chemical polishing,shielding and blocking holes

    ◆ staining: black, blue, red, golden yellow (customized according to customer requirements)

    ◆ maximum machining size: 230 * 45 * 110 (c m)

    ◆ Maximum weight of single piece: 300 (kg)

    ◆ sealing method: environmental protection: boiling water, nickel salt, cobalt salt, ferrofluorone closed; non-environmental protection: dichromate, nickel salt + dichromate double closed

    ◆ test method: vortex tester membrane thickness test, paint adhesion test, membrane weight test, corrosion resistance test, light resistance test, wear resistance test, insulation test

    ◆The hardness of anodic oxidation film is higher than that of aluminum and aluminum alloy. Because the porosity of hard anodic oxidation film is lower than that of ordinary anodic oxidation, the hardness of hard anodic oxidation is relatively high. The hardness range of general reference is as follows.

    Oxidation cases of CNC machined parts


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