A metal composite, a method of preparing the metal composite, a metal-resin composite, and a method of preparing the metal-resin composite are provided. The metal composite comprises: a metal substrate comprising a first layer formed on a surface of the metal substrate and an anodic oxidation layer formed on the first layer. The first layer comprises a first pore having an average diameter of about 10 nanometers to about 1 millimeter, and the metal composite comprises aluminum alloy or aluminum. The anodic oxidation layer comprises a second layer contacted with the first layer of the metal substrate and a third layer formed on an outer surface of the second layer, and the second layer comprises a second pore having an average diameter of about 10 nanometers to about 800 microns, and the third layer comprises a third pore having an average diameter of about 10 nanometers to about 800 microns.

A metal composite, a method of preparing the metal composite, a metal-resin composite, and a method of preparing the metal-resin composite are provided. The metal composite comprises: a metal substrate comprising a first layer formed on a surface of the metal substrate and an anodic oxidation layer formed on the first layer. The first layer comprises a first pore having an average diameter of about 10 nanometers to about 1 millimeter, and the metal composite comprises aluminum alloy or aluminum. The anodic oxidation layer comprises a second layer contacted with the first layer of the metal substrate and a third layer formed on an outer surface of the second layer, and the second layer comprises a second pore having an average diameter of about 10 nanometers to about 800 microns, and the third layer comprises a third pore having an average diameter of about 10 nanometers to about 800 microns.

An aluminum alloy is described and has compositions with mass percentage content consisting of: 5.0%-5.4% Zn; 0.9%-1.2% Mg; Cu<0.05%; Si<0.05%; Fe<0.1%; Mn<0.05%; Zr<0.1%; Ti<0.05%; other impurities <0.15%; and the remaining composition being Al. An anodizing method of the aluminum alloy described above is described and has: a degreasing treatment, a first black-film stripping treatment, a chemical polishing treatment, a second black-film stripping treatment, an anodizing treatment, a hole filling treatment and a drying treatment which are performed in turn. The aluminum alloy has a higher strength while eliminating an influence of a formed compound phase on a material texture.

An aluminum alloy is described and has compositions with mass percentage content consisting of: 5.0%-5.4% Zn; 0.9%-1.2% Mg; Cu<0.05%; Si<0.05%; Fe<0.1%; Mn<0.05%; Zr<0.1%; Ti<0.05%; other impurities <0.15%; and the remaining composition being Al. An anodizing method of the aluminum alloy described above is described and has: a degreasing treatment, a first black-film stripping treatment, a chemical polishing treatment, a second black-film stripping treatment, an anodizing treatment, a hole filling treatment and a drying treatment which are performed in turn. The aluminum alloy has a higher strength while eliminating an influence of a formed compound phase on a material texture.

A method for producing a forming tool having a forming punch and a mating die corresponding to the forming tool for forming a substrate is provided, which includes the steps of preparing at least the forming punch of the forming tool from a light metal and forming a protective coating on at least one region on a surface of at least the forming punch of the forming tool. The protective coating is applied to a region that is configured to contact the substrate, and in one form, the light metal is aluminum or an aluminum alloy. A forming tool having a forming part and a mating die is also provided, in which at least the forming tool is made from a light metal and includes the protective coating.

A method for producing a forming tool having a forming punch and a mating die corresponding to the forming tool for forming a substrate is provided, which includes the steps of preparing at least the forming punch of the forming tool from a light metal and forming a protective coating on at least one region on a surface of at least the forming punch of the forming tool. The protective coating is applied to a region that is configured to contact the substrate, and in one form, the light metal is aluminum or an aluminum alloy. A forming tool having a forming part and a mating die is also provided, in which at least the forming tool is made from a light metal and includes the protective coating.

The invention relates to an apparatus for continuously electrolytically coating a wire for a high tension cable for use in overhead transmission lines, wherein the apparatus comprises a bath for an aqueous electrolytic solution containing a precursor for an electro-ceramic coating on a wire, a first air knife cleaning device, an electrification device for electrifying the wire, a plurality of guide members positioned to route the wire from into, through and out of the bath, a cathodic connection positioned in the bath for contacting the aqueous electrolytic solution, and a power source electrically connected to the electrification device and the cathodic connection, said power source capable of providing high voltage and high current to the wire through the electrification device, and through the wire in the bath to the cathode connection via the aqueous electrolytic solution.

The invention relates to an apparatus for continuously electrolytically coating a wire for a high tension cable for use in overhead transmission lines, wherein the apparatus comprises a bath for an aqueous electrolytic solution containing a precursor for an electro-ceramic coating on a wire, a first air knife cleaning device, an electrification device for electrifying the wire, a plurality of guide members positioned to route the wire from into, through and out of the bath, a cathodic connection positioned in the bath for contacting the aqueous electrolytic solution, and a power source electrically connected to the electrification device and the cathodic connection, said power source capable of providing high voltage and high current to the wire through the electrification device, and through the wire in the bath to the cathode connection via the aqueous electrolytic solution.

A chassis member for a chassis of an electronic device is disclosed. The chassis member includes an aluminum alloy layer and an alumite layer serving as an outermost layer of the chassis member and disposed on a surface of the aluminum alloy layer. A grain size of an aluminum alloy in the aluminum alloy layer is between 40 μm and 50 μm.

A rail for an aircraft floor includes an upper plate for supporting a set of floor panels covering the plate, and a lower stiffening structure. The rail is formed by a beam and by an anticorrosion protection. The beam is at least formed by a body made of a first material and defining the lower stiffening structure and an upper platform. The anticorrosion protection fully covers an upper face of the upper platform and forms therewith the upper plate of the rail, thus layered. The anticorrosion protection is at least formed by a protective sheet made of a second material that is more corrosion resistant than the first material and is selected from a metal and a fiber-reinforced plastic composite material. Such a rail exhibits good corrosion resistance at a moderate cost.