Abstract: An X-ray image intensifier includes an envelope having an input window consisting of an aluminum alloy, and an input phosphor screen arranged in the envelope to oppose the input window, and including a substrate, an input phosphor layer formed on the substrate, and a photocathode formed on the input phosphor layer, wherein the aluminum alloy contains 3 to 6 wt % of Mg and 0.01 to 0.5 wt % of Zr. This aluminum alloy may further contain at least one metal element selected from the group consisting of 0.1 to 1 wt % of Mn, 0.01 to 0.5 wt % of Cr, 0.01 to 0.5 wt % of Sc, and 0.01 to 0.05 wt % of Ti.

Abstract: The present invention provides a method of producing a hardened aluminum alloy sheet having superior thermal stability, the method comprising the steps of: homogenizing an ingot of an aluminum alloy consisting essentially of, in weight percentage, 3.0 to 6.0% Mg and 0.4 to 0.8% Mn, with the balance being Al and incidental impurities; hot rolling the homogenized ingot to a sheet; cold rolling the hot-rolled sheet at a rolling reduction of at least 20%; intermediate heat treating the cold-rolled sheet at 200.degree. to 250.degree. C. for one hour or more; and final cold rolling the intermediate heat-treated sheet at a reduction of at least 50%. In this process, the aluminum ingot may further contain from 0.05 to 0.4% Cu with or without 0.05 to 0.5% Si, 0.1 to 0.5% Fe, 0.01 to 0.05% Ti and 0.0001 to 0.0010% B. Further, the above homogenizing and hot rolling steps may be replaced by the steps of homogenizing, hot rolling to a sheet thickness of 2 to 6 mm, cold rolling and annealing for recrystallization.

Abstract: The present invention provides a method of producing a hardened aluminum alloy sheet comprising the steps of casting an aluminum alloy containing 4.0 to 6.0% Mg in a conventional including, homogenizing, hot rolling, cold rolling, intermediate annealing and stabilizing treatment, the improvement which comprises: the aluminum alloy is provided as an Al-Mg-Cu alloy containing, in addition to Mg, 0.05 to 0.50% Cu; and the Al-Mg-Cu alloy is subjected to a final intermediate annealing treatment comprising a heating to temperatures of 350.degree. to 500.degree. C. and rapid cooling to temperatures of 70.degree. C. or less at a cooling rate of 1.degree. C./sec or more and a finishing cold rolling with a reduction of at least 50%, followed by the stabilizing treatment, thereby providing a hardened aluminum alloy sheet having a superior corrosion resistance together with high levels of strength and formability.

Abstract: A method of producing a hardened aluminum alloy forming sheet having a high strength and a superior corrosion resistance, the method comprising the steps of (1) providing a melt having a composition consisting of, in weight percentage, 4.0 to 6.0% Mg, 0.05 to 0.50% Cu, 0.10 to 1.0% Mn, 0.01 to 0.05% Ti and the balance being aluminum and impurities; (2) cooling to solidify the melt; (3) hot rolling and cold rolling to form a rolled sheet; and (4) heat treating the rolled sheet by heating to a temperature of 150.degree. to 300.degree. C. at a heating rate of at least 5.degree. C./second, holding within five minutes at the temperature of 150.degree. to 300.degree. C. and cooling to a temperature of 70.degree. C. or less at a cooling rate of at least 30.degree. C./second. The melt may further contain 0.05 to 0.20% by weight Cr and the heat treatment of the step (4) may be carried out under tension after flattening said cold-rolled sheet by leveling at ordinary temperatures.

Abstract: An aluminum alloy support for a lithographic printing plate, comprising a cold rolled plate of aluminum alloy comprising, in % by weight:98.0% or more Al;Fe in an amount of from 0.15 to 1.2% as an alloying element; andimpurities, each of which is present in an amount of from 0.0% but less than or equal to 0.15%, wherein the cold rolled plate has a distribution of Al--Fe and Al--Fe--Si based intermetallic compounds formed from the alloy, having grain sizes of greater than 0 microns but less than or equal to 3 microns, which are positioned directly under an outer surface of the cold rolled plate and wherein the surface of the cold rolled plate is roughened by etching or electrochemical etching and anodically oxidized.

Abstract: A high corrosion resistant aluminum alloy sheet useful in the manufacture of containers for saline food and beverage, especially suited for easy opening can end manufacturing, which is made of an aluminum alloy consisting essentially of, by weight percentagesMg: from 0.50 to 2.0%Si: from 0.10 to 0.70%Mn: from 0.30 to 1.5%Cu: from 0.10 to 1.0%and the balance being essentially aluminum, the spontaneous electrode potential of the sheet being in the range of from -700 to -630 mV in a 0.1% sodium chloride solution at 25.degree. C., against an AgCl reference electrode. The aluminum alloy sheet is fabricated through a series of steps of hot rolling a cast ingot with the foregoing composition; intermediate cold rolling to an intermediate thickness which is at least one and a half times a final thickness; heating to a temperature of 500.degree. C. or higher; then rapidly cooling from the temperature; and then final cold rolling.

Abstract: An aluminum alloy support for a lithographic printing plate, suitable for an electrochemical roughening treatment and excellent in fatigue resistance, heat softening resistance and printability, is provided which comprises 0.05 to less than 1% by weight of Mn, at most 0.2% by weight of Si, at most 0.5% by weight of Fe and unavoidable amounts of impurities.

Abstract: The present invention relates to a cold-rolled aluminum-alloy sheet having a high strength and a good formability required for producing a DI can. The sheet according to the present invention contains 0.1-2.0% Mn, 0.1-2.0% Mg, and 0.1 to 0.5% Si, has a thickness of 0.4 mm or less. The present invention is characterized by holding a sheet to a temperature of from 80.degree. to 150.degree. C., when it is already heat treated at 400.degree.-580.degree. C. and it is not yet finally cold-rolled. The sheet according to present invention is finally cold-rolled and has a fine grain size.

Abstract: An aluminum alloy, a lithographic printing plate support, a lithographic printing plate using the aluminum alloy are disclosed. The aluminum alloy is comprised of aluminum containing 0.20 to 1.0% Fe and 0.005 to 0.1% of elements selected from the group consisting of Sn, In, Ga and Zn. The support composed by the aluminum alloy can be chemically etched with an acid and/or an alkali solution and after undergoing etching the surface of the support is uniformly etched. The uniformly etched surface may be provided with a subbing layer or an anode oxidation film. The support is coated with a light-sensitive layer and utilized as a lithographic printing plate.

Abstract: A high strength, aluminum alloy sheet having good formability is disclosed which is particularly suitable for forming can-body parts and can-end parts, which sheet has received a final cold rolling reduction of at least 50% and consists essentially of Mn 0.30 to 1.50 wt. %, Mg 0.50 to 2.00 wt. %, preferably 0.50 to 1.25 wt. %, Si 0.52 to 1.00 wt. % and the balance being Al and incidental impurities. If required, the aluminum alloy forming sheet may also, in addition to the above elements, contain at least one component selected from the group consisting of Fe, Cu, Cr, Zn and Ti in specified ranges.The alloy sheet was produced by a specially prescribed production method.

Abstract: A lithographic printing plate support and a process for producing it are disclosed. The plate is produced by providing an aluminum alloy material which is comprised of 0.20 to 1.0% Fe, 0.005 to 0.1% of an element selected from the group consisting of Sn, In, Ga and Zn and the remainder being aluminum. The alloy may further contain 0.1 to 2% Cu. After providing the aluminum material either or both of its surfaces are subjected to a chemical etching treatment in order to provide a uniform and dense grain structure on the surface forming primary pits in the surface having a particularly defined average size. The surface is then subjected to electrochemical etching treatment in an acidic electrolytic solution in order to provide secondary pits on the surface also having a particularly defined average size. The support base may be further treated to provide in additional coating thereon or directly coated with a light-sensitive layer in order to provide a light-sensitive lithographic printing plate.

Abstract: A hard tempered aluminum alloy sheet useful for deep drawing is prepared by a process comprising the steps of hot rolling an ingot of aluminum alloy consisting essentially of 4.0 to 6.0 Mg wt. %, at least one component selected from the group consisting of 0.1 to 0.7 wt. % Mn, 0.01 to 0.05 wt. % Zr, 0.005 to 0.12 wt. % V and up to 0.05 wt. % Ti and the balance aluminum to a sheet not more than 2.5 mm thick, intermediate annealing the hot rolled alloy and final cold rolling the annealed alloy to effect a rolling reduction of less than 85%.In case the finishing temperature of the hot rolling is adjusted to a temperature of 300.degree. to 350.degree. C., the above intermediate annealing can be omitted.