| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 148531000 | Aluminum(Al) or aluminum base alloy | 15 |
| 20080271823 | Method for Steel Strip Coating and a Steel Strip Provided With Said Coating - Coating steel strips comprising, in % by weight, C: ≦1.6%, Mn: 6-30%, Al: ≦10%, Ni: ≦10%, Cr: ≦10%, Si: ≦8%, Cu: ≦3%, Nb: ≦0.6%, Ti: ≦0.3%, V: ≦0.3%, P: ≦0.1%, B: ≦0.01%, the rest being iron and unavoidable impurities, and a method of forming steel strips are described. Up to now, such steel strips were not adequately coatable, with a metal coating ensuring outstanding corrosion-resistance and good welding properties. This is ensured by applying an aluminium layer to the steel strip before final annealing and applying the metal coating to said aluminium layer after final annealing. | 11-06-2008 |
| 20080308194 | Method for Making a Steel Part of Multiphase Microstructure - The subject of the invention is a process for manufacturing a part made of steel having a multiphase microstructure, said microstructure comprising ferrite and being homogeneous in each of the regions of said part, which process comprises the steps consisting in:
| 12-18-2008 |
| 20100065160 | Process for coating a hot- or cold- rolled steel strip containing 6 - 30% by weight of MN with a metallic protective layer - A method for coating hot-rolled or cold-rolled steel strip containing 6-30 wt %. Mn with a metallic protective layer, includes annealing the steel strip at a temperature of 800-1100° C. under an annealing atmosphere containing nitrogen, water and hydrogen and then subjecting the steel strip to hot dip coating. The method provide an economical way of hot dip coating a high manganiferous sheet steel in that, in order to produce a metallic protective layer substantially free from oxidic sub-layers on the steel strip, the % H | 03-18-2010 |
| 20100175794 | Process for Producing an Active Cathodic Anti-Corrosion Coating on Steel Elements - The invention relates to a process for producing an active anti-corrosion coating on steel components. | 07-15-2010 |
| 20110017361 | Method for Coating a Hot-Rolled or Cold-Rolled Steel Flat Product, Containing 6-30% wt. Mn, with a Metallic Protective Layer - A method for coating a hot-rolled or cold-rolled steel flat product, containing 6-30% wt. Mn, with a metallic protective layer by hot-clip coating in a melt bath. The coating, achieved with increased production reliability, is optimised by the steel flat product being subjected to a pickling treatment in which the manganese oxide adhering to the steel flat product is essentially fully removed in the pickling bath before the steel flat product enters the melt bath. | 01-27-2011 |
| 20110146851 | METHOD FOR GALVANNEALING STEEL MATERIALS - Method for use when galvannealing a steel material ( | 06-23-2011 |
| 20110174418 | ALUMINUM PLATED STEEL SHEET FOR RAPID HEATING HOT-STAMPING, PRODUCTION METHOD OF THE SAME AND RAPID HEATING HOT-STAMPING METHOD BY USING THIS STEEL SHEET - The present invention solves the problem of melting of Al in heating before hot-stamping, which had been a problem in the past in applying hot-stamping to Al-plated steel sheet, and provides Al-plated steel sheet for hot-stamping and a method of hot-stamping using that Al-plated steel sheet to solve the problem of delayed fracture due to residual hydrogen, and, furthermore, a method of a rapid heating hot-stamping using that Al-plated steel sheet. | 07-21-2011 |
| 20120180910 | MICROSTRUCTURAL OPTIMIZATION OF AUTOMOTIVE STRUCTURES - A process for hot stamping a steel component is described. The hot stamping process enables the formation of one or more regions of the component to exhibit specific physical properties different than other regions of the component. The various processes are particularly well suited for forming a variety of automobile structural members. | 07-19-2012 |
| 20120211128 | METHOD FOR MAKING A STEEL PART OF MULTIPHASE MICROSTRUCTURE - A steel part having a homogeneous multiphase microstructure in each region of the part, the microstructure containing ferrite, wherein the steel part is obtained by a process involving:
| 08-23-2012 |
| 20130048154 | METHOD FOR MANUFACTURING A METAL ASSEMBLY HAVING A SHEET OF THERMALLY TREATED ALUMINUM TO OBTAIN ALPHA ALUMINA AND ANOTHER SHEET HAVING SURFACE IRREGULARITIES THAT BECOME EMBEDDED IN SAID SURFACE DURING ROLL BONDING - A method for manufacturing a metal assembly including an aluminum sheet and at least one metal sheet. An aluminum sheet is treated by heating to a temperature of between 80% and 100% of the melting temperature of the material of which it is comprised for a sufficiently long duration to create and stabilize an alpha alumina layer at the surface of the aluminum sheet. The sheet is then cooled. A metal sheet having a ductility less than or equal to the ductility of the alumimum sheet after cooling is provided, which has surface irregularities having a depth greater than or equal to the thickness of the alpha alumina layer. The aluminum sheet and the metal sheet are roll bonded in a rolling mill to produce the metal assembly, wherein the rolling mill includes at least one cylinder, the outer rolling surface of which is provided with raised portions. | 02-28-2013 |
| 20130186524 | Al PLATING LAYER/Al-Mg PLATING LAYER MULTI-LAYERED STRUCTURE ALLOY PLATED STEEL SHEET HAVING EXCELLENT PLATING ADHESIVENESS AND CORROSION RESISTANCE, AND METHOD OF MANUFACTURING THE SAME - Provided is an aluminum (Al) plating layer/aluminum (Al)-magnesium (Mg) plating layer multi-layered structure alloy plated steel sheet having excellent plating adhesiveness and corrosion resistance, which is characterized in that the Al—Mg plating layer is formed on the Al plating layer. According to the present invention, corrosion resistance of an Al plated steel sheet is further improved by forming an Al—Mg alloy plating layer, and plating adhesiveness between plating layer and underlying steel sheet may be improved as well as excellent stability and practicality being realized. | 07-25-2013 |
| 20140216612 | Steel, for Hot Forming or Quenching in a Tool, having Improved Ductility - The invention relates to a steel part, the composition of the steel of which comprises, the contents being expressed by weight: 0.040%≦C≦0.100%; 0.80%≦Mn≦2.00%; Si≦0.30%; S≦0.005%; P≦0.030%; 0.010%≦Al≦0.070%; 0.015%≦Nb≦0.100%; 0.030%≦Ti≦0.080%; N≦0.009%; Cu≦0.100%; Ni≦0.100%; Cr≦0.100%; Mo≦0.100%; and Ca≦0.006%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting, the microstructure of the steel consisting of at least 75% equiaxed ferrite, martensite in an amount not less than 5% but not exceeding 20%, and bainite in an amount not exceeding 10%. | 08-07-2014 |
| 20150047753 | METHOD FOR PRODUCING A COMPONENT FROM STEEL BY HOT FORMING - The invention relates to a method for producing a component from transformable steel by hot forming, in which a plate first is cut out of a strip or sheet as the pre-material, and is then heated to forming temperature and pre-formed, having an at least partially martensitic transformation structure after forming. Instead of a press mould hardening, the at least partially martensitic transformation structure is created in the pre-material, or in the plate to be formed, by austenitisation and quenching already before forming, and then the thus-conditioned plate is reheated after forming, while maintaining the at least partially martensitic transformation structure, to a temperature below the Ac1 transformation temperature, and formed at this temperature. | 02-19-2015 |
| 20150298199 | METHOD FOR PRODUCING STRUCTURAL COMPONENTS AND CHASSIS COMPONENTS BY HOT FORMING, AND HEATING STATION - In a method for producing in particular structural components or chassis components for a motor vehicle by hot or semi-hot forming, a sheet metal blank is heated in a heating station at least in a first region from a starting temperature to a target temperature, and then the warm blank is transferred to a cooled pressing tool and is formed and press-hardened. The heating station comprises includes at least one burner zone which includes at least one burner, in which zone the sheet metal blank is heated from the starting temperature to the target temperature, and at least one burner is operated with a combustion gas and an oxygen-containing gas and the sheet metal blank comes into direct contact with the burner flame. | 10-22-2015 |
| 20160017452 | PROCESS FOR MANUFACTURING PRESS-HARDENED COATED STEEL PARTS AND PRECOATED SHEETS ALLOWING THESE PARTS TO BE MANUFACTURED - This invention relates to a cold-rolled sheet that is annealed and pre-coated for the fabrication of press hardened parts, composed of a steel substrate for heat treatment with a carbon content C | 01-21-2016 |
