The present invention relates to a method for manufacturing an ultrafine single-crystalline metal wire. The method continuously manufactures an ultrafine long single-crystalline wire by shaping a grown single-crystalline metal to have a circular or rectangular cross section and then by drawing the shape-processed single-crystalline metal using a drawing machine. Therefore, the method simplifies manufacturing procedures to reduce manufacturing costs and lowers electrical resistance of a produced metal wire to improve the quality of the produced metal wire. The method comprises: a first step of growing a single-crystalline metal ingot using a Czochralski or a Bridgman method; a second step of subjecting the single-crystalline metal ingot to a shaping process such that the single-crystalline metal ingot has a certain shape; and a third step of completing the manufacture of an ultrafine single-crystalline metal wire by drawing the shape-processed single-crystalline metal.

A copper wire having a diameter of 10 to 80 m is provided. The copper wire bulk material is 99.99 wt.-% pure copper or a copper alloy consisting of 10 to 1000 wt.-ppm of silver and/or of 0.1 to 3 wt.-% of palladium with copper as the remainder to make up 100 wt.-%, and the copper wire has a 0.5 to <6 nm thin circumferential surface layer of copper oxide.

The invention relates to a high-tensile brass alloy comprising 58-66 wt % Cu; 1.6-7 wt % Mn; 0.2-6 wt % Ni; 0.2-5.1 wt % Al; 0.1-3 wt % Si; 1.5 wt % Fe; 0.5 wt % Sn; 0.5 wt % Pb; and the remainder Zn together with unavoidable impurities. Also described are a high-tensile brass product with such an alloy composition, and a method for manufacturing such a product made of a high-tensile brass alloy.

A high fatigue resistant nickel-titanium alloy wire, the wire having a transition temperature A.sub.F from 15 C. to +10 C. after annealing at a temperature in the range of 700 C. to 900 C., the wire being characterized by a Full-Width at Half-Maximum (FWHM) of austenite nickel-titanium diffraction peak in the range of 0.6 2 to 0.7 2 in a X-ray diffraction pattern using a Cu Ka radiation source.

The invention relates to a method for the production of a mechanical part, comprising the following successive steps: casting of a billet of aluminium alloy with a composition (in weight %) of 0.4-3.0 Si; 0.6-2.0 Mg; 0.20-1.0 Cu; 0.15-1.8 Fe; Mn<0.5; Ni<1; Ti<0.15; Cr<0.35; Bi<0.8; Pb<0.4; Zr<0.04; other elements <0.05 each and <0.15 total, the remainder being aluminium; homogenisation of the billet; extrusion of the billet in order to obtain an extruded product; quenching while at extrusion heat; optional cold-deformation and/or straightening, typically by means of pulling and/or drawing, and/or curing of the extruded product; tempering; optional cold-deformation of the extruded product, typically by drawing; machining of the resulting extruded product in order to obtain a turned mechanical part; optional shaping of the resulting mechanical part; anodising of the resulting mechanical part at a temperature of between 15 and 40 C with a solution comprising between 100 and 250 g/l sulphuric acid and between 10 and 30 g/l oxalic acid and between 5 and 30 g/l of at least one polyol. The anodised turned mechanical parts obtained using the method of the invention have, in particular, advantageous roughness and excellent corrosion resistance and can be used, in particular, as brake pistons or gearbox elements.

An aluminum alloy wire rod has a composition consisting of 0.1-1.0 mass % Mg; 0.1-1.0 mass % Si; 0.01-1.40 mass % Fe; 0.000-0.100 mass % Ti; 0.000-0.030 mass % B; 0.00-1.00 mass % Cu; 0.00-0.50 mass % Ag; 0.00-0.50 mass % Au; 0.00-1.00 mass % Mn; 0.00-1.00 mass % Cr; 0.00-0.50 mass % Zr; 0.00-0.50 mass % Hf; 0.00-0.50 mass % V; 0.00-0.50 mass % Sc; 0.00-0.50 mass % Co; 0.00-0.50 mass % Ni; and the balance being Al and incidental impurities, wherein at least one or none of Ti, B, Cu, Ag, Au, Mn, Cr, Zr, Hf, V, Sc, Co and Ni is contained in the composition. A dispersion density of an Mg.sub.2Si compound having a particle size of 0.5 m to 5.0 m is less than or equal to 3.010.sup.3 particles/m.sup.2. In a sectional structure, a concentration of each of Si and Mg other than a compound is less than or equal to 2.00 mass %.

A method for manufacturing a plate, a band, or a coil of hot-rolled steel is provided. The method includes providing an ingot or a slab of steel with a desired composition and a microstructure composed of austenite and 35 to 65% ferrite by volume and hot rolling the ingot or slab at a temperature between 1150 and 1280 C. to obtain a plate, a band or a coil. A method for manufacturing a hot-rolled bar or wire of steel, a steel profile and a forged steel piece are also provided.

The present invention provides a method for manufacturing a finished metal object or product having a corrosion resistant layer integral to or within a top portion of at least one of its surfaces that would be exposed to a corrosive environment. In one embodiment, the method for manufacturing is directed to a finished metal tubing product having a corrosion resistant layer within its inside surface that is exposed to a fluid and wherein the corrosion resistant layer is a zinc-metal oxide layer, such as a zinc-chromium oxide layer, or a zinc-mixed metal oxide layer. In addition to methods of manufacturing, the present invention provides finished metal objects or products having a corrosion resistant layer integral to or within a top portion of at least one surfaces that would be exposed to a corrosive environment.

To provide a chassis for a small electronic device that can be formed efficiently by drawing work with low cost, is hard to cause forming failure, and causes no damage on the surface thereof on forming to provide an excellent appearance. The rolled aluminum alloy laminated sheet material is for forming a chassis for a small electronic device by drawing work, and contains a rolled aluminum alloy sheet material having a 0.2% proof stress of 200 MPa or more, and a covering material laminated at least one surface of both surfaces of the rolled aluminum alloy sheet material, and the covering material contains any one of a synthetic resin film, and a laminated material containing a metal foil having synthetic resin films laminated on both surfaces thereof. The rolled aluminum alloy sheet material may have a fibrous crystalline structure extending in a direction perpendicular to a thickness direction thereof.

Disclosed is an apparatus of fabricating a terminal plate product according to an exemplary embodiment of the present invention. The apparatus of fabricating the terminal plate product includes: a die plate having one or more spaces in which a terminal plate is received; an upper plate which is positioned on the top of the die plate, is movable to ascend and descend, and presses and processes at least a part of the top of the terminal plate received in one or more spaces through descending movement; a first lower plate which is positioned on the bottom of the die plate, is movable to ascend and descend, and discharges the pressed and processed terminal plate while ascending; and a second lower plate which is positioned on the bottom of the first lower plate, is movable to ascend and descend, has one or more molding pins, press and process at least a part of the bottom of the terminal plate through ascending movement, coupled to the top, and separates the molding pin from the processed terminal plate during descending movement.