The present disclosure provides an aluminum alloy casing, a preparation method thereof, and a personal electronic device. The aluminum alloy casing includes an aluminum alloy matrix and an oxide film layer covering the surface of the aluminum alloy matrix, wherein the aluminum alloy matrix has a slit, the oxide film layer includes an inner anodic oxide film layer and an outer anodic oxide film layer, and the inner anodic oxide film layer has inner anodic oxide film layer nanopores; and the outer anodic oxide film layer has outer anodic oxide film layer nanopores.

Treatments for anodic coatings that provide improved resistance to staining and cracking during various manufacturing processes are described. According to some embodiments, the methods include placing the anodic coatings in partially sealed states by sealing only the outermost portions of the anodic coatings, which protect the outer surfaces of the anodic coatings from contamination and staining. Inner portions of the anodic coatings are left unsealed, thereby making the anodic coatings more compliant and resistant to cracking when exposed to manufacturing processes, even those that involve exposure to high temperatures or high mechanical stress. Subsequent to the processing, another sealing process can be implemented to fully seal the anodic coatings so that they provide good corrosion and wear resistance.

Treatments for anodic coatings that provide improved resistance to staining and cracking during various manufacturing processes are described. According to some embodiments, the methods include placing the anodic coatings in partially sealed states by sealing only the outermost portions of the anodic coatings, which protect the outer surfaces of the anodic coatings from contamination and staining. Inner portions of the anodic coatings are left unsealed, thereby making the anodic coatings more compliant and resistant to cracking when exposed to manufacturing processes, even those that involve exposure to high temperatures or high mechanical stress. Subsequent to the processing, another sealing process can be implemented to fully seal the anodic coatings so that they provide good corrosion and wear resistance.

A method for producing an aluminium component having a coloured surface, and comprises the steps of anodizing the surface of the component and applying the colouring component by electrolysis. The method is characterized in that the electrolyte comprises an Sn salt and a further salt of a divalent metal. Through the combination of two or more metal salts in the electrolytic colouring of anodized layers, a dense and intensely coloured coloration can be obtained on the aluminium surface.

A method for producing an aluminium component having a coloured surface, and comprises the steps of anodizing the surface of the component and applying the colouring component by electrolysis. The method is characterized in that the electrolyte comprises an Sn salt and a further salt of a divalent metal. Through the combination of two or more metal salts in the electrolytic colouring of anodized layers, a dense and intensely coloured coloration can be obtained on the aluminium surface.

The present invention provides a pellicle frame which can effectively inhibit deformation of an exposure master plate (8) caused by affixing the pellicle (1), and which does not have a complex shape, and a pellicle which uses said pellicle frame are provided. The pellicle frame with an anodized film on a surface of an aluminum alloy frame is characterized in that: the aluminum alloy frame comprises an aluminum alloy which contains Ca: 5.0 to 10.0% by weight with the remainder aluminum and unavoidable impurities are contained, and has an area (volume) ratio of an Al.sub.4Ca phase, which is a dispersed phase, is greater than or equal to 25%, and a crystal structure of a part of the Al.sub.4Ca phase is monoclinic; wherein the anodized film contains Al.sub.4Ca particles.

The present invention provides a pellicle frame which can effectively inhibit deformation of an exposure master plate (8) caused by affixing the pellicle (1), and which does not have a complex shape, and a pellicle which uses said pellicle frame are provided. The pellicle frame with an anodized film on a surface of an aluminum alloy frame is characterized in that: the aluminum alloy frame comprises an aluminum alloy which contains Ca: 5.0 to 10.0% by weight with the remainder aluminum and unavoidable impurities are contained, and has an area (volume) ratio of an Al.sub.4Ca phase, which is a dispersed phase, is greater than or equal to 25%, and a crystal structure of a part of the Al.sub.4Ca phase is monoclinic; wherein the anodized film contains Al.sub.4Ca particles.

The invention relates to traceable metallic products, methods of uses and methods of making same. The metallic products may be made traceable for integrity purposes, identification purposes, counterfeit avoidance and the like. The invention also relates to metallic supports for nanostorage of various compounds and samples.

The invention relates to traceable metallic products, methods of uses and methods of making same. The metallic products may be made traceable for integrity purposes, identification purposes, counterfeit avoidance and the like. The invention also relates to metallic supports for nanostorage of various compounds and samples.

This application relates to a part that includes a metal oxide layer having pore structures. In some embodiments, dye molecules having aromatic rings can be disposed within at least one of the pore structures. Additionally, the at least one pore structures can include dispersion molecules, where the dispersion molecules form non-covalent interactions with the dye molecules. By forming non-covalent interactions between the dye molecules and the dispersion molecules, the aromatic rings of the dye molecules are prevented from forming other non-covalent interactions with other dye molecules. Additionally, techniques for chemically stabilizing the color dye bath for dyeing anodized parts are also described.