A rolled foil formed of the FeCu alloy according to an embodiment of the present invention is manufactured to consist of 3 to 30 wt % iron and 70 to 97 wt % copper having a thickness of 100 m to 10 m, by casting a molten metal of a FeCu parent alloy and a metal copper into a slab, heat-treating the slab, and roll-milling the heat-treated slab by using a multi-pass rolling mill with the total reduction ratio of 90% or higher. In this regard, the FeCu alloy rolled foil according to the present invention provides an effect of shielding electromagnetic waves of 80 dB or more within high frequencies ranging between 1 GHz to 1.5 GHz.

The invention relates to a method including very superficial embossing combined with superficial laminating, which involves a slight reduction in thickness, the method being applied to plates several millimetres thick and to aluminium sheets having a thickness of less than 0.3 mm, supplied, in either case, as independent plates or in a continuous roll.

A closed loop temperature control system for use in tandem rolling mills. The closed loop temperature control system uses dynamic information about the temperature of the material moving through the mill to adjust the work rolls to adjust the amount of thickness reduction between the stands to control the temperature of the material as it moves through the mill. In one embodiment, the control system is configured to eliminate or reduce temperature differences across the length of the material as the material moves through acceleration, steady state, and deceleration stages of the rolling process.

New 6xxx aluminum alloys having an improved combination of properties are disclosed. Generally, the new 6xxx aluminum alloys contain 1.00-1.45 wt. % Si, 0.32-0.51 wt. % Mg, wherein a ratio of wt. % Si to wt. % Mg is in the range of from 2.0:1 (Si:Mg) to 4.5:1 (Si:Mg), 0.12-0.44 wt. % Cu, 0.08-0.19 wt. % Fe, 0.02-0.30 wt. % Mn, 0.01-0.06 wt. % Cr, 0.01-0.14 wt. % Ti, and 0.25 wt. % Zn, the balance being aluminum and impurities, wherein the aluminum alloy includes 0.05 wt. % of any one impurity, and wherein the aluminum alloy includes 0.15 in total of all impurities.

An apparatus and method for applying an EDT texture to an aluminum sheet has a rolling stand with at least one EDT surfaced roll capable of rolling the sheet at reductions<1%. The rolling is conducted with residual or no lubrication and imparts a texture on the scale of about 1 m to the surface of the sheet at low roll force.

Metal work rolls texturized with engineered textures can impart desired impression patterns on metal strips. Engineered textures can be controlled with particularity to achieve desired surface characteristics (e.g., lubricant trapping, coefficient of friction, or surface reflectivity) on work rolls and metal strips, and to allow for impression patterns to be imparted on metal strips during high percentages of reduction of thickness (e.g., greater than about 5% or greater than about 15%, such as around 30%-55%). Engineered textures can be applied by focusing energy beams at specific points of an outer surface of a work roll to impart texture elements on the work roll. In some cases, an engineered texture element that can be used to generate a generally circular impression element can be generally elliptical in shape, having a length that is shorter than its width by a factor dependent on the reduction of thickness percentage.

A method for manufacturing the high strength steel sheet having excellent formability includes hot-rolling a steel slab having a chemical composition containing, by mass %, C: 0.03% or more and 0.35% or less, Si: 0.5% or more and 3.0% or less, Mn: 3.5% or more and 10.0% or less, P: 0.1% or less, S: 0.01% or less, N: 0.008% or less and the balance comprising Fe and inevitable impurities, coiling the hot-rolled steel sheet at a temperature range of the Ar.sub.1 transformation point to the Ar.sub.1 transformation point+(the Ar.sub.3 transformation pointthe Ar.sub.1 transformation point)/2, cooling the coiled steel sheet down to 200 C. or lower, heating and holding the cooled steel sheet at a temperature range of the Ac.sub.1 transformation point200 C. to the Ac.sub.1 transformation point for 30 minutes or more, pickling the heated steel sheet, cold-rolling the pickled steel sheet under the condition that the rolling reduction is 20% or more, and heating and holding the cold-rolled steel sheet at a temperature range of the Ac.sub.1 transformation point to the Ac.sub.1 transformation point+(the Ac.sub.3 transformation pointthe Ac.sub.1 transformation point)/2 for 30 seconds or more.

A method is disclosed for calculating the combination of properties of phase components and of mechanical properties being established of a predefined alloy composition for a deformable lightweight steel having the elements in percent by weight C 0.02 to 1.0, Al 2.5 to 8.0, Si 0.0 to 1.5, Mn5.0 to 35.0, Cr>1.0 to 14.0, total content of N, S, P0.1, the remainder iron and other steel-accompanying elements with some contents of Cu, Mo, Ni, and Zn of up to 1.0 wt % in total by using specific formulas on the basis of the manganese content, wherein, in the formulas, the alloy contents are used as absolute numbers without dimensions, and the calculated, dimensionless values are assigned the units MPa for Rm and Rp and % for A80.

A method of rolling NiW alloy tapes for coated conductors belongs to the technical field of metal materials rolling. According to the method, a cylindrical NiW alloy ingot with a diameter not less than 10 mm is used to be rolled back and forth along the axial direction as a rolling direction, wherein the content of W is 57 at. %, and the axis of this ingot is perpendicular to the plane where the axes of working rollers are located. During rolling process, the cross sectional area reduction of the ingot is retained at 5% per pass. When the total cross sectional area reduction of the ingot is larger than 98% and the thickness of the tape is down to 60100 m, the rolling is stopped, and thus the NiW alloy tape is obtained. The method has the advantages that the negative influence generated when the NiW alloy tape is produced from a cuboid initial NiW alloy ingot can be reduced as much as possible, the yield of the NiW alloy tapes is increased, as well as relatively ideal effects can be obtained in terms of the surface biaxial texture, the length and the axial quality.

A cold rolled and recovered TWIP steel sheet is provided having an austenitic matrix including by weight: 0.71<C<1.2%, 13.0Mn<25.0%, S0.030%, P0.080%, N0.1%, 0.1Si3.0%, 0.1V2.50%, and on a purely optional basis, one or more elements such as Cu5.0%, Al4.0%, Nb0.5%, B0.005%, Cr1.0%, Mo0.40%, Ni1.0%, Ti0.5%, 0.06Sn0.2%, the remainder of the composition being made of iron and inevitable impurities resulting from elaboration.