The growth of aluminum oxide films depends on the ratio of dissolution and growth rates of the films. Generally, the concentration of the aluminum oxide solution increases, and the dissolution rate of the oxide film also increases. Conversely, as the concentration of the solution decreases, the dissolution rate also decreases. When the oxidation begins, the growth rate of the oxide film is greater in the concentrated solution than in the dilute solution. However, with the extension of the hour, the growth rate in the concentrated solution is lower than that in the dilute solution. Therefore, it is necessary to select the concentration of the solution according to the requirements of the aluminum oxide film. For example, when the concentration of the solution is high, the growth rate of the film is large at the beginning of aluminum oxidation, and the porosity is high, and the dyeing is simplified. However, the membrane hardness, wear resistance and other functions are poor. The oxide film obtained in the dilute solution, wear safety, good reflective, but the low porosity. Only suitable for dyeing various light pale colors. The practice of production proves that for the aluminum oxide film with strong adsorption capacity and elasticity, the concentration of sulfuric acid should be 18%-20%. If the need for wear-resistant decorative oxide film, the choice of sulfuric acid concentration of 16% -17% is more appropriate.
Saw blade is a general term for thin circular cutting tools used to cut solid materials.Saw blade can be divided into: Diamond Saw Blade for stone cutting;HSS saw blades for cutting metal materials (not inlaid with carbide head);TCT saw balde used for cutting solid wood, furniture, wood-based panel, aluminum alloy, aluminum profile, radiator, plastic, plastic steel and so on
we provide all kinds of saw blade ,including TCT Saw Blade, diamond saw blade,HSS saw blade, Cutting Disc, flap discs ect.
Flap Disc,Tct Saw Blade,Bevel Brushes,Segment Blade
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