Abstract: The strip casting plant has a casting nozzle (10) displaceable in the direction of flow (F) of the liquid metal and adjustable perpendicular to this, to supply liquid metal to the adjustable roller gap (30) between rotating dies (26, 28). The casting nozzle (10) consists of an upper and a lower nozzle element (14, 16) and in vertical strip casting plants a left and a right nozzle element (14, 16) mounted on a melt distribution trough, and two side limiters which form a slot-like outlet opening (20) for the liquid metal. One or both of the nozzle elements (14, 16) is adjustable at least in the area of the outlet opening (20). On operation of the strip casting plant, the casting nozzle (10) is advanced at the start with outlet opening (20) in start position (S) and then withdrawn to work position (W), where the outlet opening (20) is expanded under adaptation to the casting rollers (26, 28).

Abstract: A high creep resistance aluminum alloy containing, in percent by weight:Cu: 2.0-3.0;Mg: 1.5-2.1;Mn: 0.3-0.7;Fe<0.3;Ni<0.3;Zr<0.15;Ti<0.15;Ag<1.0;Si<0.6;with Si and Ag in amounts such that 0.3<Si+0.4Ag<0.6; other elements <0.05 each and <0.15 total; and balance Al. The alloy has in its wrought state after being treated by natural aging, quenching and aging, a creep strain after 1,000 h at 150.degree. C. under a stress of 250 MPA of less than 0.3% and a fracture time of at least 2,500 h, and can be used for structural parts for aircraft or spacecraft, rotating machine parts, or plastic processing molds.

Abstract: An improvement to a process for treating an aluminum alloy for the series AA 2000 or AA 6000 comprising solution heat treating, quenching and natural or artificial aging, in which conventional heat solution heat treating is defined as solution heat treating the alloy at a temperature which is 5.degree. to 10.degree. C. below a known eutectics melting temperature for the alloy. The improvement comprises solution heat treating at a temperature which is 10.degree. to 100.degree. C. below the conventional solution heat treating temperature in order to desensitize the alloy to intercrystalline corrosion.

Abstract: A process and apparatus for cooling the external surface of rolls used in continuous casting of metal strip. According to the invention, the direction of cooling fluid flowing through the rolls is periodically reversed in order to reduce the thermal ovalization of the rolls.

Abstract: The invention relates to a process for producing, by casting between rolls, an aluminum alloy sheet suitable for making up constituent elements of cans for food use, the aluminum alloy containing (by weight) between 1 and 4% of Mg and between 0 and 1.6% of Mn, the process being characterized in that said sheet is obtained by casting of said alloy in the liquid state between two rolls in the form of a strip having a thickness of at most 4 mm followed by at least one heat treatment at a temperature between 400.degree. and 580.degree. C. so that the sheet is at least partially recrystallized and cold-rolling to a final thickness of less than 0.3 mm.The sheet obtained has a yield stress, a formability index and a resistance of the coating to delamination which are improved and make it suitable for application to can manufacture and, in particular, to can lids.

Abstract: An aluminum alloy useful for drawing and/or ironing, particularly of drink cans. The alloy consists essentially of, in weight percent, Fe<0.25; Si<0.25; Mn from 1.05 to 1.6; Mg from 0.7 to 2.5; Cu from 0.20 to 0.6; Cr from 0 to 0.35; Ti from 0 to 0.1; V from 0 to 0.1; other elements: each <0.05; total<0.15; and remainder Al.

Abstract: A ladle including one or more compartments for the continuous processing of molten metal, such as aluminum or its alloys, with the aid of a device for introducing gas and heating by means of a submerged immersion heater. The ladle includes a plurality of immersion heaters of small diameter having high power output per unit distributed within the ladle.

Abstract: Ladle for the filtration of a liquid metal such as aluminum, magnesium, and their alloys over a filter medium of the gravel bed type. The ladle comprises a chamber in which the filter medium rests on a supporting grid, an inlet for supplying liquid metal to the chamber and an outlet for removing liquid metal from the chamber. The ladle includes first and second heaters for heating the liquid metal, the first heater being located outside the filter medium and the second heater being an electrical immersion heater which is located in the inlet or outlet and adjacent the filter medium. The second heater is arranged for immersion in liquid metal flowing through the inlet or the outlet.

Abstract: A process for obtaining a multilayer material suitable for transformation by drawing or drawing and ironing into a hollow body having a height to diameter ratio greater than 2.5. The process comprises subjecting an aluminum alloy substrate to an anodizing or chemical conversion surface treatment for improving adherence thereto, covering one of the surfaces of the substrate by adhering a plastic material film thereto, and covering the other of the surfaces with a coating of varnish including a solid lubricant in the form of particles which are harder than the varnish. The coated substrate is subsequently drawn or drawn and ironed into a hollow body utilizing tools having a hardness which is greater than the particles.

Abstract: A method of avoiding run out on a machine for casting between rolls is disclosed. The method measures the value of a parameter such as the electric strength or fluid pressure supplying the motor which rotates the rolls, or the torque or force exerted by the strip on at least one of the rolls, at at least 20 equidistant positions at the periphery of at least one of the rolls and during each revolution. As soon as a reduction in the value of at least one of these parameters is observed in 3 successive positions during revolution n, relative to the value at the same positions read during revolution n-1, the rotary speed of the roll is reduced until the difference disappears, then the roll is gradually returned to the initial speed. This method enables strips of normal length to be cast without any being discarded and without any scrap being produced.

Abstract: The invention concerns an alloy based on Al and essentially containing Li, Cu, Mg and Zr as its chief elements. It has good cold deformation capability, particularly when sheets or strips are being cold rolled, and good damage resistance, that is to say essentially good resistance to fatigue and corrosion under tension, and good fracture toughness. The alloy is of the following composition, by weight: from 1.7 to 2.25% Li; from 1.0 to 1.5% Cu; from 1.0 to 1.8% Mg; from 0.04 to 0.15% Zr; up to 2% Zn; up to 0.15% Fe; up to 0.15% Si; up to 0.5% Mn; up to 0.25% Cr; others: each .ltoreq.0.05%, total .ltoreq.0.15%; remainder Al. The alloy can be used as a structural element, particularly in the aircraft and space industries.

Abstract: An apparatus for gas treatment for a bath of liquid aluminum at rest in a furnace having a roof and in which the bath has a surface area of at least 10 m.sup.2. The apparatus comprises a movable gantry placed over the furnace and from which are suspended at least three gas injector assemblies which are more than 2 m long each. The injector assemblies are partially immersed in the bath through openings in the roof of the furnace and the immersed parts are separated from each other solely by the bath. The assemblies each comprise a rotary shaft having a rotor at its lower end joined to a plurality of blades. Through the axis of the shaft there is a cavity which opens above the furnace and which communicates at its lower end with passages in the blades. Means are provided above the furnace for rotating the shafts and for connecting the cavities to a source of treating gas.

Abstract: The invention relates to a process for adhering rubber to aluminium. The process comprises a succession of steps: anodization of the surface of the aluminium which is intended to be brought into contact with the rubber; treatment of the anodized surface with a solution of silane mercaptan in an organic solvent; followed by drying; and applying the rubber to be adhered while the treated surface is hot. The invention finds application in the production of all aluminium-rubber composites and in particular those which form guides for automobile door windows.