| ARCELOR France Patent applications |
| Patent application number | Title | Published |
|---|
| 20110166685 | PRESS-FORMING DEVICE, PRESS-FORMING METHOD, COMPUTER PROGRAM/SOFTWARE ARRANGEMENT AND STORAGE MEDIUM - Exemplary embodiments of a press-forming device, press-forming method, computer program/software arrangement and storage medium can be provided. The exemplary press-forming device can include a material characteristic input configured to input material characteristics. A state variable detector can be configured to measure a state variable comprising a metal mold distortion amount. A processing condition computer arrangement can be configured to determine from a first moment to a second moment at least one particular processing condition. Further, a processing condition controller can be configured to control the at least one processing condition from processing conditions. | 07-07-2011 |
| 20110094279 | SYSTEM, METHOD, SOFTWARE ARRANGEMENT AND COMPUTER-ACCESSIBLE MEDIUM FOR PRESS-FORMING OF MATERIALS - A system, method and software arrangement are provided for generating press-formed parts having a more consistent quality based on improved determination of processing conditions. For example, an apparatus can be configured to compare actual performance values of material properties provided by a material property database with standard values, and to adjust forming conditions such as a forming speed and a blank-holder pressure in accordance with the compared result. A control arrangement can be provided to control a press-forming device using the adjusted forming conditions. Accordingly, it may be possible to reduce occurrences of defects such as cracks and wrinkles when press-forming materials, and to obtain products having consistent quality and substantially identical shapes. | 04-28-2011 |
| 20090145572 | METHOD FOR CONTROLLING A MOLTEN METAL BATH BUBBLING IN A METALLURGICAL VESSEL AND A DEVICE FOR CARRYING OUT SAID METHOD - A device for control of bubbling of a metal bath in a ladle or in another similar metallurgical vessel including a bottom injector linked to a source of supply of pressurized stirring gas to be injected with aid of a pipe provided with a facility for adjusting flow rate, at least one vibration sensor mounted on the vessel itself or on a support frame, a signal processing unit processing a vibratory signal gathered by the sensor, and wherein the signal processing unit includes at least, and in successive order of processing of the vibratory signal, a high-pass analog filter, a digitizer, a digital filter calibrated on vibratory responses of the ladle, and a computer for computing a sliding temporal quadratic mean of RMS type. | 06-11-2009 |
| 20080308192 | Hydroxysulfate Surface Treatment - The subject of the invention is the use of a treatment solution containing sulfate ions for treating the surface of a galvanized steel sheet for the purpose of reducing degradation of the coating during the operation of forming said sheet, and for the purpose of improving the temporary corrosion protection of said sheet. It also relates to a method of lubricating such a coated sheet. | 12-18-2008 |
| 20080302450 | Object Comprising a Steel Part of Metal Construction Consisting of an Area Welded by a High Power Density Beam and Exhibiting an Excellent Toughness in a Molten Area, Method for Producing Said Object - The invention discloses an object comprising at least one part made of steel, the composition of which comprises, the contents being expressed by weight, carbon with a content of between 0.005 and 0.27%, manganese between 0.5 and 1.6%, silicon between 0.1 and 0.4%, chromium in a content of less than 2.5%, Mo in a content of less than 1%, optionally one or more elements chosen from nickel, copper, aluminum, niobium, vanadium, titanium, boron, zirconium and nitrogen, the balance being iron and impurities resulting from the smelting, said steel part including at least one zone welded by a high-energy-density beam, characterized in that said welded zone has a microstructure consisting of 60 to 75% self-tempered martensite and, to complement this, 40 to 25% lower bainite, and preferably 60 to 70% self-tempered martensite and, to complement this, 40 to 30% lower bainite. | 12-11-2008 |
| 20080283156 | Method for Making a Coated Steel Part Having Very High Resistance After Heat Treatment - The invention relates to a process for manufacturing a part having very high mechanical properties from a hot-rolled or cold-rolled steel strip, comprising precoating said strip with aluminum or an aluminum alloy, cold deformation of the coated strip, possible cutting of the excess sheet with a view to the final geometry of the part, heating of the part so as to form an intermetallic compound from the steel/precoat interface and to austenitize the steel, transfer of the part to a tool and cooling of the part in the tool at a rate such that the steel has, after being cooled, a martensitic or bainitic structure or a martensite-bainite structure. The precoating is carried out by electroplating, by chemical or physical vapor deposition or by co-rolling. | 11-20-2008 |
