33 patents
Utility
Process for manufacturing a coated metal strip of improved appearance
27 Jul 20
An installation for continuous hot-dip coating of a metal strip is provided.
Luc Diez, Jean-Michel Mataigne, Bertrand Orsal, Hubert Saint Raymond
Filed: 7 Jun 18
Utility
High strength steel and production method
29 Jun 20
The present invention provides a cold-rolled and annealed steel sheet of thickness between 0.7 mm and 2 mm, mechanical strength ranging from 1180 MPa to 1320 MPa, wherein the hole expansion ratio Ac % is greater than 20% and the bending angle is greater than or equal to 40°.
Josee Drillet, Veronique Hebert
Filed: 8 Jun 16
Utility
Vehicle underbody structure comprising a reinforcement element between a longitudinal beam and a lowerside sill part
8 Jun 20
A vehicle underbody structure containing a floor panel, at least one longitudinal beam extending in a longitudinal direction of the vehicle under said floor panel and at least one lowerside sill part extending in the longitudinal direction adjacent to the floor panel, and at least one reinforcement element extending in a transversal direction, substantially perpendicular to the longitudinal direction, said reinforcement element made of a press hardened steel part having a tensile strength higher or equal to 1200 MPa and extending under the floor panel and being attached at one of its transversal ends to the longitudinal beam and at the other of its transversal ends to the lowerside sill part is provided.
Ivan Viaux, Florin Arnautu
Filed: 8 Dec 16
Utility
Steel sheet provided with a coating providing sacrificial cathodic protection comprising lanthane
8 Jun 20
A steel sheet is provided with a coating providing sacrificial cathodic protection.
Christian Allely, Jacques Petitjean
Filed: 27 May 15
Utility
Method of determining a chemical composition of a slag portion
8 Jun 20
A method of determining a chemical composition of a slag portion is provided.
Asier Vicente Rojo, Artzai Picon Ruiz, Sergio Rodriguez Vaamonde
Filed: 10 May 15
Utility
Method and device for preparing aluminum-coated steel sheets intended for being welded and then hardened under a press; corresponding welded blank
1 Jun 20
The present invention provides a method for the preparation of steel sheets to be fabricated into a welded steel blank.
Francis Schmit, René Vierstraete, Qingdong Yin, Wolfram Ehling
Filed: 16 Apr 15
Utility
Method of producing press-hardened and coated steel parts at a high productivity rate
1 Jun 20
This invention relates to a sheet or pre-coated blank comprising a steel substrate for heat treatment, overlaid on at least a part of at least one of its principal faces, by a pre-coating having, at least one layer of aluminum or aluminum alloy overlaid, on at least a part of the above-mentioned pre-coating, by a polymerized layer having a thickness between 2 and 30 μm composed of a polymer that does not contain silicon, and the nitrogen content of which, is greater than 1% by weight expressed in relation to the above-mentioned layer, wherein the above-mentioned polymerized layer contains carbon pigments in a quantity between 3 and 30% by weight, expressed in relation to said layer.
Michel Sanadres, Christine Dessain
Filed: 12 Feb 15
Utility
Method for the preparation of aluminized steel sheets to be welded and then press hardened
18 May 20
A method for the preparation of steel sheets for fabricating a welded steel blank is provided.
Francis Schmit, Rene Vierstraete, Qingdong Yin, Wolfram Ehling
Filed: 11 Sep 19
Utility
Vehicle rear body structure and method for manufacturing thereof
11 May 20
A vehicle rear body structure containing a rear rail extending in a longitudinal direction and a rear bumper beam, extending transversely to the longitudinal direction, the rear rail having a rear end and a front end, spaced apart along the longitudinal direction, the rear end being connected to the rear bumper beam and the rear rail extending towards the front of the vehicle from its rear end, wherein the rear rail comprises at least a front portion, an intermediate portion and a rear portion, the front portion being intended for extending alongside a fuel tank of the vehicle, the resistance to plastic deformation of the front portion being greater than the resistance to plastic deformation of the intermediate portion, which is itself greater than the resistance to plastic deformation of the rear portion.
Ivan Viaux
Filed: 8 Dec 16
Utility
Method of producing press-hardened and coated steel parts at a high productivity rate
11 May 20
A sheet or blank is provided which includes a substrate and pre-coating on at least one face of the substrate.
Michel Sanadres, Christine Dessain
Filed: 31 May 17
Utility
Spacer for road safety barrier
11 May 20
The present invention provides a spacer for a road safety barrier.
Michaël Gremling
Filed: 1 Apr 15
Utility
Method of producing press-hardened and coated steel parts at a high productivity rate
4 May 20
A fabrication method for a press hardened part is provided.
Michel Sanadres, Christine Dessain
Filed: 23 Jan 19
Utility
Motor vehicle structural component and front lower section comprising such a component
13 Apr 20
A structural component connected to a structural element is provided.
Cédric Bouton, Edith Lahellec, Jean-Louis Colmont, Thierry Derchu, Maxime Gabrel
Filed: 10 Oct 16
Utility
Method of producing press-hardened and coated steel parts at a high productivity rate
13 Apr 20
A part obtained by austenitization followed by hot stamping and hardening by holding in the stamping tool a sheet or blank is provided, including, a steel substrate, a precoating having at least one layer of aluminum or aluminum alloy, a microstructure of a steel substrate including martensite and/or bainite, a coating on at least one face of the steel substrate resulting from the interdiffusion between the steel substrate and the pre-coating and an oxide layer overlying the coating, an average content by weight of oxygen between 0 and 0.01 μm below a surface of the part being less than 25%, and the average percent by weight of oxygen between 0.1 and 0.2 μm below the surface being less than 10%.
Michel Sanadres, Christine Dessain
Filed: 20 Feb 19
Utility
Multi-layer substrate
13 Apr 20
Substrate provided with a plurality of layers, at least one of which includes metal oxides and is topped directly by a metal coating layer that contains at least 8% by weight nickel and at least 10% by weight chromium, the remainder being iron, additional elements and the impurities resulting from the fabrication process, wherein this metal coating layer is topped directly by an anticorrosion coating layer.
Daniel Chaleix, Eric Silberberg, Bruno Schmitz, Xavier Vanden Eynde, Sergio Pace
Filed: 3 Apr 14
Utility
Process for manufacturing cold-rolled and annealed steel sheet with a very high strength, and sheet thus produced
6 Apr 20
The present invention provides a cold-rolled and annealed steel sheet with a strength greater than 1200 MPa, the composition of which includes, the contents being expressed by weight: 0.10%≤C≤0.25%, 1%≤Mn≤3%, A≥0.010%, Si≤2.990%, S≤0.015%, P≤0.1%, N≤0.008%, it being understood that 1%≤Si+Al≤3%, it being understood that Cr+3Mo≥0.3%, Ti in an amount such that Ti/N≥4 and Ti≤0.040%.
Javier Gil Otin, Antoine Moulin
Filed: 21 Aug 16
Utility
High strength multiphase steel, production method and use
6 Apr 20
The invention deals with a cold rolled and hot dip steel sheet, with a tensile strength of at least 980 MPa, with yield strength above or equal to 500 MPa, with total elongation above or equal to 8%, the composition consisting by weight percent: 0.05<C<0.15%, 2<Mn≤3%, Al<0.1%, 0.3<Si<1.5%, 0.01%<Nb<0.05%, N<0.02%, 0.1<Cr+Mo<1%, 0.0001<B<0.0025, Ti<0.5%, V<0.01%, S<0.01%, P<0.05% the remainder of the composition being iron and unavoidable impurities resulting from the smelting and the microstructure contains, in surface fraction: between 50 and 95% of martensite and between 5 and 50% of the sum of ferrite and bainite, wherein the ferrite grain size is below 10μιτι, and wherein the aspect ratio of the ferrite grain size is between 1 and 3.
Dongwei Fan, Hyun Jo Jun, John A. Rotole
Filed: 2 Jun 15
Utility
Methods for producing a pre-lacquered metal sheet having Zn—Al—Mg coatings and corresponding metal sheet
6 Apr 20
A method is provided.
Tiago Machado Amorim, Joëlle Richard, Eric Jacqueson, Audrey Lhermeroult, Pascale Feltin, Jean-Michel Lemaire, Christian Allely, Luc Diez, Jean-Michel Mataigne
Filed: 23 Feb 16
Utility
Metal sheet treatment method for reducing blackening or tarnishing during the storage thereof and metal sheet treated with this method
6 Apr 20
The present invention provides a metal sheet including a steel substrate coated on at least one face with a coating including from 0.1 to 20% by weight of magnesium, optionally from 0.1 to 20% by weight of aluminum, the balance being zinc, potential impurities linked to the method and optionally one or more additional elements selected from among Si, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, Ni, Zr and Bi, the content by weight of each additional element being less than 0.3%.
Daniel Chaleix, Christian Allely, Maxime Monnoyer, Pascale Feltin
Filed: 3 Jul 14
Utility
High strength steel and manufacturing method
23 Mar 20
Josée Drillet, Véronique Hebert
Filed: 4 Dec 14