Patents by Inventor Enno Arenholz

Enno Arenholz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for heat-treating a manganese steel product and manganese steel product
    Patent number: 10450622
    Abstract: A method for heat treating a manganese steel product whose alloy comprises: a carbon fraction (C) between 0.09 and 0.15 wt. %, and a manganese fraction (Mn) in the range of 3.5 wt. %?Mn?4.9 wt. %, the method comprising: performing a first annealing process (S4.1) with the substeps heating (E1) the steel product to a first holding temperature (T1), which lies above 780° C., holding (H1) the steel product during a first time period (?1) at the first holding temperature (T1), cooling (A1) the steel product, performing a second annealing process (S4.2) with the substeps heating (E2) the steel product to a holding temperature (T2), which lies above 630° C. and below 660° C., holding (H2) the steel product during a second time period (?2) at the holding temperature (T2), cooling (A2) the steel product.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: October 22, 2019
    Assignee: VOESTALPINE STAHL GMBH
    Inventors: Enno Arenholz, Ludovic Samek
  • Manganese steel strip having an increased phosphorous content and process for producing the same
    Patent number: 9677146
    Abstract: A hot-rolled austenitic manganese steel strip having a chemical composition in percent by weight of 0.4%?C?1.2%, 12.0%?Mn?25.0%, P?0.01% and Al?0.05% has a product of elongation at break in % and tensile strength in MPa of above 65,000 MPa %, in particular above 70,000 MPa %. A cold-rolled austenitic manganese steel strip having the same chemical composition achieves a product of elongation at break in % and tensile strength in MPa of above 75,000 MPa %, in particular above 80,000 MPa %.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: June 13, 2017
    Assignee: VOESTALPINE STAHL GMBH
    Inventors: Reinhold Schneider, Ludovic Samek, Enno Arenholz, Klemens Mraczek, Mario Hartl
  • METHOD FOR HEAT-TREATING A MANGANESE STEEL PRODUCT AND MANGANESE STEEL PRODUCT
    Publication number: 20160002746
    Abstract: A method for heat treating a manganese steel product whose alloy comprises: a carbon fraction (C) between 0.09 and 0.15 wt. %, and a manganese fraction (Mn) in the range of 3.5 wt. %?Mn?4.9 wt. %, the method comprising: performing a first annealing process (S4.1) with the substeps heating (E1) the steel product to a first holding temperature (T1), which lies above 780° C., holding (H1) the steel product during a first time period (?1) at the first holding temperature (T1), cooling (A1) the steel product, performing a second annealing process (S4.2) with the substeps heating (E2) the steel product to a holding temperature (T2), which lies above 630° C. and below 660° C., holding (H2) the steel product during a second time period (?2) at the holding temperature (T2), cooling (A2) the steel product.
    Type: Application
    Filed: December 20, 2013
    Publication date: January 7, 2016
    Applicant: VOESTALPINE STAHL GMBH
    Inventors: Enno Arenholz, Ludovic Samek
  • Method for producing a structural part from an iron-manganese steel sheet
    Patent number: 9138797
    Abstract: In a method for producing a structural part from an iron-manganese-stell sheet (1), a sheet-metal workpiece (2) is cold-formed in a forming die (3). The formed sheet-metal workpiece is heated to a temperature between 500° C. and 700° C. (4) and calibrated in a calibrating die (5).
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: September 22, 2015
    Assignee: VOESTALPINE STAHL GMBH
    Inventors: Ludovic Samek, Martin Peruzzi, Enno Arenholz
  • Manganese steel strip having an increased phosphorous content and process for producing the same
    Publication number: 20110308673
    Abstract: A hot-rolled austenitic manganese steel strip having a chemical composition in percent by weight of 0.4%?C?1.2%, 12.0%?Mn?25.0%, P?0.01% and Al?0.05% has a product of elongation at break in % and tensile strength in MPa of above 65,000 MPa %, in particular above 70,000 MPa %. A cold-rolled austenitic manganese steel strip having the same chemical composition achieves a product of elongation at break in % and tensile strength in MPa of above 75,000 MPa %, in particular above 80,000 MPa %.
    Type: Application
    Filed: May 11, 2011
    Publication date: December 22, 2011
    Applicant: voestalpine Stahl GmbH
    Inventors: Reinhold Schneider, Ludovic Samek, Enno Arenholz, Klemens Mraczek, Mario Hartl