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| Number | Title | Issue Date |
| 4955413 | A alloy product containing Li, resistance to corrosion under stress, and process to obtain said product The invention concerns an Al alloy product containing lithium, with great specific mechanical strength and high tolerance to damage, particularly resistance to corrosion under stress in processed state (quenched-tempered), particularly in recrystallized s... | 09/11/1990 |
| 4943000 | Method of brazing aluminum alloys without filler metal A method is disclosed for brazing without filler metal two components, of which at least one is an Al alloy. According to the method, prior to brazing, at least one Al alloy component is maintained in a region of temperatures included between the temperat... | 07/24/1990 |
| 4923676 | Aluminium alloy parts, such as in particular rods, having an improved fatigue strength and production process The invention relates to aluminium alloy parts having an improved fatigue strength and to their production process. These parts are made from an alloy containing by weight 11 to 22% silicon, 2 to 5% iron, 0.5 to 4% copper, 0.2 to 1.5% magnesium and having... | 05/08/1990 |
| 4872921 | Sheets of aluminium alloy containing magnesium, suitable for producing bodies of cans by drawing and ironing, and method of obtaining said sheets The invention relates to sheets of aluminium alloy containing magnesium, suitable for producing bodies of cans by drawing and ironing, and a method of obtaining said sheets. The sheets are characterized in that they have, over 10 to 25% of their surface, ... | 10/10/1989 |
| 4855107 | Aluminium alloy for thin metal sheets which are suitable for the production of can lids and bodies and a process for manufacturing said metal sheets The invention relates to an aluminum alloy for thin metal sheets suitable for the production of can lids and bodies, and to a process for manufacturing such metal sheets. The alloy contains, in percent by weight: from 0.8 to 1.8 manganese from 1 to 2 silicon f... | 08/08/1989 |
| 4848441 | Method of adjustment to the level of the line of contact between the free surface of the metal and the ingot mould in the vertical casting of products of any cross-section The invention relates to a method for adjusting the level of the line of contact between the mold and the free surface of the metal in the vertical continuous casting of products of any cross-section in an ingot-mold, which includes the step of applying t... | 07/18/1989 |
| 4840683 | Al-Cu-Li-Mg alloys with very high specific mechanical strength The invention relates to aluminum based alloys essentially containing Cu, Li and Mg, which have very high specific mechanical strength and can be used particularly to obtain heat treated articles of complex shapes. The analyses are as follows (as % by wei... | 06/20/1989 |
| 4816088 | Method of raising the recrystallization temperature of aluminium and of its alloys The invention relates to a method for the deformational transformation of aluminum and its alloys comprising the steps of deforming the aluminum in the solid state and annealing the deformed aluminum at a temperature at which recrystallization occurs. The... | 03/28/1989 |
| 4814022 | Weldable aluminum alloy workable into sheet form and process for its production A weldable aluminum alloy workable into sheet form containing Si, Mg and Cu, and a process for its production are disclosed. The alloy comprises (in percent by weight) proportions of Si and Mg as defined by a trapezium having the following co-ordinates: Cu: 0.... | 03/21/1989 |
| 4807694 | Process for regulating the level of the line of contact of the free surface of the metal with the mould in vertical casting In a continuous vertical casting operation carried out in a mould 3, a coil 7 applies a periodic magnetic field of variable strength whose direction is substantially parallel to the axis of the mould 3 to the liquid 5 as it solidifies, in order to regulat... | 02/28/1989 |
| 4804423 | Al alloys having high proportions of Li and Si and a process for production thereof The invention concerns Al-base alloys with substantial proportions of Li and Si, containing, by weight: from 3.6 to 8% Li from 5 to 14% Si from 0 to 1% of each of the following optional elements: Fe, Co, Ni, Cr, Mn, Zr, V, Ti, Nb, Mo, O2, Sc, and fr... | 02/14/1989 |
| 4799976 | Process for the heat treatment of Al alloys containing Li with a view to preserving their surface health The invention relates to a process for improving the surface condition of Li-containing Al alloy products. According to the process, heating at a temperature exceeding 300° C. takes place in an atmosphere containing, in volume percent, 5 to 98% CO2 | 01/24/1989 |
| 4781239 | Process and apparatus for casting in a pit, without any explosive risk, of aluminum and its alloys, particularly with lithium The invention relates to a process and an apparatus for casting in a pit, without risk of explosion, of aluminum and its alloys, particularly with lithium. It comprises placing an elastic shield (3) around the cast product in order to stop the cooling wat... | 11/01/1988 |
| 4758286 | Heat treated and aged Al-base alloys containing lithium, magnesium and copper and process The present invention relates to Al-base alloys essentially containing additions of Li, Mg and Cu and possibly minor additions of Cr, Zr, Ti and Mn, which have high specific mechanical characteristics, a low density and good resistance to corrosion. The a... | 07/19/1988 |
| 4757259 | Method for measuring the thickness and temperature of a moving metal sheet by means of eddy currents A non-contacting, eddy current, measuring method for determining the thickness and temperature of a moving metal sheet as in a metal rolling operation. Two separate magnetic fields are generated by applying two voltages of differing frequencies to a prima... | 07/12/1988 |
| 4752343 | Al-base alloys containing lithium, copper and magnesium and method The present invention relates to Al-base alloys essentially containing Li, Cu and Mg, and having high specific characteristics and a high degree of ductility. Their composition is as follows (% by weight): The heat treatment comprises a homogenization step at ... | 06/21/1988 |
| 4750945 | Castings made from aluminium and its alloys, whereof at least one face has at least one region of wear-resistant zones Castings made from aluminum and its alloys have at least one face including at least one region of wear-resistant zones. These castings are formed by a controlled distribution of zones hardened by local melting effect. The zones, no matter what their leng... | 06/14/1988 |
| 4735255 | Mould permitting regulation of the level at which it is in contact with the free surface of the metal in a vertical casting operation The invention relates to a mould for vertical casting of molten metal and including a means for regulating the level at which the inner surface of the mould contacts the free surface of the metal being cast. The mould is formed at least in its lower part ... | 04/05/1988 |
| 4735070 | Method and apparatus for lubricated forward extrusion with radial forward removal of outer shell This invention relates to a method and an apparatus for lubricated forward extrusion of metals and alloys with radial forward removal of an outer shell or sheath. The method according to the invention consists of forming a gap in the form of a plane or sl... | 04/05/1988 |
| 4723591 | Apparatus for regulating the level of the line of contact of the free surface of the metal with the ingot mould in a vertical casting operation The invention relates to an apparatus for regulating the level of the line of contact of the free surface of the metal with the mould in vertical casting. It comprises a mould formed by a material having a level of resistivity of higher than 5 μω.cm, su... | 02/09/1988 |
| 4718787 | Connector for scaffolding or similar structure and process of assembly thereof A connector for scaffolding or similar structure permitting vertical poles to be connected to longitudinal transverse members or bars includes a star-shaped portion with a central bore having a plurality of arms which at their ends each carry a pyramid-co... | 01/12/1988 |
| 4699203 | Process for the casting of sacrificial anodes in an ingot mould having a movable base The invention relates to a process for casting a sacrificial anode having a tubular steel insert bonded over its length to a dissimilar metal by casting and solidifying molten dissimilar metal on the steel insert in a vertical ingot mold having a movable ... | 10/13/1987 |
| 4653303 | Apparatus for continuously brushing and lubricating rolls of rolling mills for flat rolled products Apparatus for continuously brushing and lubricating rolls of rolling mills for rolled flat products without pollution of said products by the lubricant used; it can be used in hot or cold rolling, in particular for Al or alloys thereof. An enclosure of ge... | 03/31/1987 |
| 4652314 | Process for producing products of Al-Li-Mg-Cu alloys having high levels of ductility and isotropy The invention concerns a process for producing products of Al-base alloys essentially containing Li, Mg and Cu as main alloy elements and having a high level of ductility and isotropy. The process comprises subjecting the homogenized product to a "tepid" ... | 03/24/1987 |
| 4638018 | Acrylic telomers with grafts which can be cross linked by light, their synthesis and their applications in coating metals The invention relates to acrylic telomers with grafts which can be cross linked by light, methods of synthesizing them and their applications. The telomers comprise a telogen of the mercaptan family, in particular dodecanethiol, and links of a taxogen of ... | 01/20/1987 |
| 4627149 | Method of mounting an annular element on a metal tube of aluminum or an alloy thereof A method of mounting an annular element on a tube which involves surrounding said tube by a tubular sleeve of aluminum or an alloy thereof, which is sufficiently thin to be plastically deformable and has a similar cross-section, with suitable clearance, w... | 12/09/1986 |
| 4610735 | Method of modulated cooling to minimize deformation of flat metallurgical products The invention concerns a method for minimizing deformation during rapid cooling of flat metallurigcal products such as sheets, strips, flattened portions, wide sections and the like. The method comprises rapidly cooling the product by means of a fluid (or ... | 09/09/1986 |
| 4597277 | Process and apparatus for producing reinforced metal strips Metal sheets of aluminum are provided with raised reinforcing portions of substantial height by rolling. The rolls have recesses or channels (6) whose side faces are in a counter-taper configuration with respect to a plane perpendicular to the axis of the... | 07/01/1986 |
| 4586310 | Angled assembly of profiles for tongue and groove fitting and key locking Device for assembly of profiles by a groove, tongue fitting, with locking by key, which avoids the risks of tongue and key sliding along groove. The device consists of making one of the male elements, tongue or key, longer than the other, in the direction... | 05/06/1986 |
| 4575056 | Apparatus for the recovery of liquid aluminium by compression of hot dross The present invention relates to a process and apparatus for the recovery of liquid aluminium by compression of hot dross. The process comprises placing the dross in a die up to a height which depends on the diameter of said die and which is lower at the cente... | 03/11/1986 |
| 4537167 | Engine cylinder liners based on aluminum alloys and intermetallic compounds, and methods of obtaining them The invention relates to cylinder liners for internal combustion engines comprising a matrix based on aluminum alloys of high mechanical strength, obtained by powder metallurgy, and methods of producing them. The liners comprise a dispersion of grains of ... | 08/27/1985 |
| 4537161 | Inserts for pistons of diesel engines of aluminum-silicon alloys having an improved thermal resistance and machinability This invention relates to inserts for pistons of diesel engines of aluminum-silicon alloys obtained by powder metallurgy. These inserts are characterized in that they contain elements such as iron and zirconium. They find their application in the manufacture o... | 08/27/1985 |
| 4511409 | Process for improving both fatigue strength and toughness of high-strength Al alloys The invention concerns a process for improving the characteristics in respect of fatigue strength and toughness of worked Al alloys in the treated state, by means of a thermo-mechanical treatment which is carried out on the cast and possibly homogenized p... | 04/16/1985 |
| 4501315 | Method of controlling and regulating operational parameters of a machine for continuously casting bands between cylinders, allowing adhesion to be avoided The present invention relates to a method of controlling and regulating operational parameters of a machine for continuously casting bands between cylinders, allowing adhesion to be avoided. This method comprises considering as parameters the torque exert... | 02/26/1985 |
| 4497360 | Method of monitoring and controlling operating parameters of a machine for the continuous casting of strips between rolls The invention relates to a method for the monitoring and control of operating parameters of a machine for the continuous casting of strips between rolls, including the torque exerted on at least one of the rolls to cause the strip to advance and/or the st... | 02/05/1985 |
| 4389134 | Coupling of a tube to a ring member A coupling for two tubes forcibly engaged one into the other, the two tubes being substantially of the same sections while the female tube is engaged into a sleeve or an opening whose diameter is little larger than the outside diameter of said tube. Thus,... | 06/21/1983 |
| 4326773 | Solar energy focusing means comprising modular elements The invention concerns a cylindro-parabolic reflector for focusing solar rays on the focal axis of the cylinder. The reflector comprises modular elements which are assembled by means of tubes which are interengaged strictly in alignment with each other. The ... | 04/27/1982 |
| 4323399 | Process for the thermal treatment of aluminium - copper - magnesium - silicon alloys A process for the thermal treatment of wrought products made of an aluminum alloy of the 2000 series comprising by weight from 3.5 to 5% copper, from 0.2 to 1% magnesium, from 0.25 to 1.2% silicon, with a Si to Mg ratio greater than 0.8 comprising solutio... | 04/06/1982 |
| 4302874 | Method of forming pipe union The invention relates to a method for quickly joining pipes by chamfering the end of a thin pipe, forcefully socket jointing this pipe in a pipe of the same diameter, dismantling the two pipes by traction. The two pipes can thereafter be rejoined easily a... | 12/01/1981 |
| 4297777 | Method for the production of a composite hollow body A method for the production of a composite hollow body formed of aluminum alloys and composed of two layers having differing structure. One layer of the hollow body is intended to operate in contact with a mobile surface and is produced by extruding a mix... | 11/03/1981 |
