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USINOR
| USINOR Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20110223441 | VERY HIGH MECHANICAL STRENGTH STEEL AND METHOD FOR PRODUCING A SHEET OF THIS STEEL COATED WITH ZINC OR ZINC ALLOY - The invention concerns a very high mechanical strength steel, whereof the chemical composition comprises in wt. %: 0.060%=C=0.250%; 0.400%=Mn=0.950%; Si=0.300%; Cr=0.300%; 0.100%=Mo=0.500%; 0.020%=AI=0.100%; P=0.100%; B=0.010%; Ti=0.050%, the rest being iron and impurities resulting from preparation. The invention also concerns a method for making a sheet of said steel coated with zinc or zinc alloy. | 09-15-2011 |
| 20100139864 | METHOD FOR THE PLASMA CLEANING OF THE SURFACE OF A MATERIAL COATED WITH AN ORGANIC SUBSTANCE AND THE INSTALLATION FOR CARRYING OUT SAID METHOD - The invention relates to a method of cleaning the surface of a material that is coated with an organic substance. The inventive method is characterized in that it comprises the following steps, consisting in: introducing the material into a treatment chamber, having a pressure of between 10 mbar and 1 bar therein, which is supplied with a gas stream containing at least 90 volume percent of oxygen; and generating a plasma by passing an electric discharge between the surface of the material and a dielectric-covered electrode in order to break down the organic substance under the action of the free radicals O thus produces. The invention also relates to an installation that is used to carry out said method. | 06-10-2010 |
| 20100139691 | METHOD FOR THE PLASMA CLEANING OF THE SURFACE OF A MATERIAL COATED WITH AN ORGANIC SUBSTANCE AND THE INSTALLATION FOR CARRYING OUT SAID METHOD - The invention relates to a method of cleaning the surface of a material that is coated with an organic substance. The inventive method is characterized in that it comprises the following steps, consisting in: introducing the material into a treatment chamber, having a pressure of between 10 mbar and 1 bar therein, which is supplied with a gas stream containing at least 90 volume percent of oxygen; and generating a plasma by passing an electric discharge between the surface of the material and a dielectric-covered electrode in order to break down the organic substance under the action of the free radicals O thus produces. The invention also relates to an installation that is used to carry out said method. | 06-10-2010 |
| 20090255809 | METHOD OF CLEANING THE SURFACE OF A MATERIAL COATED WITH AN ORGANIC SUBSTANCE AND GENERATOR AND DEVICE FOR CARRYING OUT SAID METHOD - A method for the continuous cleaning of the surface of a material ( | 10-15-2009 |