公开(公告)号：US20200216925A1

公开(公告)日：2020-07-09

申请号：US16647894

申请日：2018-10-11

Applicant: ThyssenKrupp Steel Europe AG ,  ThyssenKrupp AG

Inventor： Janko Banik ,  Maria Köyer ,  Dirk Rosenstock ,  Manuela Ruthenberg

IPC: C21D9/48 ,  C21D8/04 ,  C21D6/00 ,  C23C2/06 ,  C23C2/40 ,  C23C2/28 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/22 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  B21D22/02

Abstract: A method for producing a steel component from a flat steel sheet is provided. The produced steel component includes a substrate and a coating. The method ensures that the steel component has an Hdiff content below a certain level. The low Hdiff content minimizes the risk of hydrogen-induced cracking of the steel component after hot forming, including during subsequent use of the steel component. The Hdiff content in the hot-formed steel component is ensured to be below a certain level by selecting furnace parameters depending on the rolling degree and the sheet thickness of the flat steel sheet.

公开(公告)号：US20230366056A1

公开(公告)日：2023-11-16

申请号：US18024126

申请日：2021-08-27

Applicant: ThyssenKrupp Steel Europe AG

Inventor： Maria Köyer ,  Manuela Ruthenberg ,  Janko Banik

IPC: C21D9/46 ,  C22C38/02 ,  C22C38/06 ,  C22C38/00 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/12 ,  C23C2/28 ,  C23C2/40 ,  C22C21/02 ,  C21D8/02 ,  C23C28/00

CPC classification number: C21D9/46 ,  C22C38/02 ,  C22C38/06 ,  C22C38/002 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/12 ,  C23C2/28 ,  C23C2/40 ,  C22C21/02 ,  C21D8/0236 ,  C21D8/0278 ,  C23C28/321

Abstract: A flat steel product is provided, including a steel substrate made of a steel which consists of, in % by weight, 0.07-0.4% C, 1.0-2.5% Mn, 0.06-0.9% Si, ≤0.03% P, ≤0.01% S, ≤0.1% Al, ≤0.15% Ti, ≤0.6% Nb, ≤0.005% B, ≤0.5% Cr, 50.5% Mo, where the sum of Cr and Mo is ≤0.5%, and, as the remainder, Fe and unavoidable impurities, and including an anti-corrosion coating which is formed from, in % by weight, ≤15% Si, ≤5% Fe, ≤5% of at least one alkaline earth or transition metal and, as the remainder, Al and unavoidable impurities. If the anti-corrosion coating contains ≤0.1% by weight of the alkaline earth or transition metal, a solution containing at least one alkaline earth or transition metal is applied to the anti-corrosion coating of the flat steel product. Then, the flat steel product is flexibly cold-rolled to produce the portions of different thicknesses. Then, it is heated to 800-1000° C. in an atmosphere with >15% by volume O2 until an amount of thermal energy Js of >44,000 kJs and ≤400,000 kJs has been introduced.

公开(公告)号：US11692234B2

公开(公告)日：2023-07-04

申请号：US16859729

申请日：2020-04-27

Applicant: ThyssenKrupp Steel Europe AG ,  ThyssenKrupp AG

Inventor： Janko Banik ,  Ulrich Etzold ,  Norbert Rössler ,  Manuela Ruthenberg ,  Thiemo Wuttke

IPC: C23C28/00 ,  C23C2/40 ,  C23C2/12 ,  C23C2/06 ,  C23C2/02 ,  C23C2/26 ,  C23C30/00 ,  C21D1/673 ,  C21D8/00 ,  C21D8/02 ,  C21D9/00 ,  C22C38/32 ,  C22C38/28 ,  C22C38/22 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C21/02 ,  C22C21/06 ,  C22C21/12 ,  C22C21/16 ,  C22C21/08 ,  B32B15/01 ,  B32B15/04 ,  B32B15/18 ,  C23C2/28 ,  C22C21/10 ,  C22C21/00 ,  C21D7/00 ,  C21D6/00 ,  C21D9/48 ,  C23C2/04 ,  C21D8/04

CPC classification number: C21D9/0068 ,  B32B15/012 ,  B32B15/04 ,  B32B15/043 ,  B32B15/18 ,  C21D1/673 ,  C21D6/005 ,  C21D7/00 ,  C21D8/005 ,  C21D8/02 ,  C21D8/0205 ,  C21D8/0247 ,  C21D8/0278 ,  C21D8/0284 ,  C21D8/0421 ,  C21D9/48 ,  C22C21/00 ,  C22C21/02 ,  C22C21/06 ,  C22C21/08 ,  C22C21/10 ,  C22C21/12 ,  C22C21/16 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C23C2/02 ,  C23C2/04 ,  C23C2/06 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40 ,  C23C28/32 ,  C23C28/321 ,  C23C28/345 ,  C23C30/00 ,  C23C30/005 ,  Y10T428/1259 ,  Y10T428/1266 ,  Y10T428/12583 ,  Y10T428/12597 ,  Y10T428/12604 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12667 ,  Y10T428/12757 ,  Y10T428/12972 ,  Y10T428/12979 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/263 ,  Y10T428/264 ,  Y10T428/265

Abstract: A flat steel product for hot forming may be produced from a steel substrate that includes a steel comprising 0.1-3% by weight Mn and up to 0.01% by weight B, along with a protective coating that is applied to the steel substrate. The protective coating may be based on Al and may contain up to 20% by weight of other alloy elements. Also disclosed are methods for producing such flat steel products, steel components, and methods for producing steel components. Absorption of hydrogen is minimized during heating necessary for hot forming. This is achieved at least in part through an alloy constituent of 0.1-0.5% by weight of at least one alkaline earth or transition metal in the protective coating, wherein an oxide of the alkaline earth or transition metal is formed on an outer surface of the protective coating during hot forming of the flat steel product.

公开(公告)号：US11261514B2

公开(公告)日：2022-03-01

申请号：US16326780

申请日：2017-09-22

Applicant: ThyssenKrupp Steel Europe AG ,  ThyssenKrupp AG

Inventor： Janko Banik ,  Patrick Kuhn ,  Manuela Ruthenberg ,  Axel Schrooten ,  Sascha Sikora

IPC: C23C2/12 ,  C23C2/28 ,  C23F11/12 ,  C23F11/16 ,  C23F11/10 ,  C21D1/19 ,  C21D6/00 ,  C21D1/18 ,  C21D1/68

Abstract: A method for producing a component made of a steel product coated with an Al—Si protective coating, includes: providing a substrate consisting of a steel produced coated with an Al—Si protective coating, heating the substrate to a temperature T1 such that the Al—Si protective coating is only partially pre-alloyed with Fe of the steel product, cooling the pre-alloyed substrate to room temperature, applying a corrosion protection oil to the surface of the pre-alloyed substrate, wherein the oil consists of a composition containing fatty acid ester, transporting the pre-alloyed substrate to which the oil has been applied, heating the pre-alloyed substrate to which the oil has been applied to a temperature T2 such that the Al—Si protective coating is fully alloyed with Fe of the steel product and the oil is removed without leaving residue, and shaping the re-heated substrate to form the component.

公开(公告)号：US20240425946A1

公开(公告)日：2024-12-26

申请号：US18827239

申请日：2024-09-06

Applicant: ThyssenKrupp Steel Europe AG

Inventor： Jennifer Schulz ,  Maria Köyer ,  Manuela Ruthenberg

IPC: C21D9/46 ,  C21D1/18 ,  C21D6/00 ,  C21D8/02 ,  C22C21/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40

Abstract: A sheet metal component made of a hot-formed flat steel product including a steel substrate consisting of, in mass. %,, C: 0.1-0.4%, Mn: 0.5-3.0%, Si: 0.05-0.5% Cr: 0.005-1.0%, B: 0.0005-0.01% and optionally one or more of V, Ti, Nb, Al, Ni, Cu, Mo, and W, where the contents of the respective optionally present alloy element are: V: 0.001-0.2%, Ti: 0.001-0.1%, Nb: 0.001-0.1%, Al: 0.01-0.2%, Ni: 0.01-0.4%, Cu: 0.01-0.8% Mo: 0.002-1.0%, W: 0.001-1.0%, and the remainder iron and unavoidable impurities, wherein the unavoidable impurities include less than 0.1% P, less than 0.05% S, and less than 0.01% N, and an Al corrosion protection layer applied to the steel substrate, wherein the component is optionally hardened. An adhesive section having an SDR value of 3-30%, determined according to ISO 25178, is provided on the free outer face of the corrosion protection coating for adhering the sheet metal component to another component.

公开(公告)号：US20230366057A1

公开(公告)日：2023-11-16

申请号：US18027201

申请日：2021-09-17

Applicant: ThyssenKrupp Steel Europe AG

Inventor： Jennifer Schulz ,  Maria Köyer ,  Manuela Ruthenberg

IPC: C21D9/46 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C22C38/14 ,  C22C38/12 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C21/02 ,  C21D1/18 ,  C21D8/02 ,  C21D6/00 ,  C23C2/12 ,  C23C2/40 ,  C23C2/28

CPC classification number: C21D9/46 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C22C38/14 ,  C22C38/12 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/002 ,  C22C21/02 ,  C21D1/18 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0278 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C23C2/12 ,  C23C2/40 ,  C23C2/28

Abstract: A sheet metal component made of a hot-formed flat steel product including a steel substrate consisting of, in mass. %, C: 0.1-0.4%, Mn: 0.5-3.0%, Si: 0.05-0.5% Cr: 0.005-1.0%, B: 0.0005-0.01% and optionally one or more of V, Ti, Nb, Al, Ni, Cu, Mo, and W, where the contents of the respective optionally present alloy element are V: 0.001-0.2%, Ti: 0.001-0.1%, Nb: 0.001-0.1%, Al: 0.01-0.2%, Ni: 0.01-0.4%, Co: 0.01-0.8% Mo: 0.001-1.0%, W: 0.001-1.0%, and the remainder iron and unavoidable impurities, wherein the unavoidable impurities include contents less than 0.1% P, less than 0.05% S, and less than 0.01% N, and an Al corrosion protection layer applied to the steel substrate, wherein the component is optionally hardened. An adhesive section having an SDR value of 3-30%, determined according to ISO 25178 is provided on the free outer face of the corrosion protection coating for adhering the sheet metal component to another component.

公开(公告)号：US09670573B2

公开(公告)日：2017-06-06

申请号：US14765716

申请日：2014-01-13

Applicant: ThyssenKrupp Steel Europe AG

Inventor： Jegor Bergen ,  Frank Spelleken ,  Michael Peters ,  Manuela Ruthenberg ,  Friedhelm Macherey ,  Florian Spelz

IPC: C21D9/52 ,  C23C2/40 ,  C23C28/02 ,  C21D1/26 ,  C23C2/06 ,  C23C2/12 ,  C23F17/00

CPC classification number: C23C2/40 ,  C21D1/26 ,  C21D9/52 ,  C23C2/06 ,  C23C2/12 ,  C23C28/025 ,  C23C28/028 ,  C23F17/00

Abstract: A method for the hot-dip coating of metal strip, in particular steel strip, in a metallic melting bath (3) is disclosed. In the method, the metal strip (1) to be coated is heated in a continuous furnace (2) and is introduced into the melting bath (3) through a snout (6) which is connected to the continuous furnace and which is immersed into the melting bath. To be able to satisfy the requirements placed on the coated strip (1) with regard to good deformability of the strip, as far as possible without cracking and peeling, and with regard to high anti-corrosion protection in a more effective and reliable manner, the disclosure proposes that, in the region delimited by the snout (6), a melt is used which is intentionally implemented differently, in terms of its chemical composition, than the chemical composition of the melt used in the melting bath (3).

公开(公告)号：US12104218B2

公开(公告)日：2024-10-01

申请号：US18027201

申请日：2021-09-17

Applicant: ThyssenKrupp Steel Europe AG

Inventor： Jennifer Schulz ,  Maria Köyer ,  Manuela Ruthenberg

IPC: C21D9/46 ,  C21D1/18 ,  C21D6/00 ,  C21D8/02 ,  C22C21/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40

CPC classification number: C21D9/46 ,  C21D1/18 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0278 ,  C22C21/02 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40

Abstract: A sheet metal component made of a hot-formed flat steel product including a steel substrate consisting of, in mass. %, C: 0.1-0.4%, Mn: 0.5-3.0%, Si: 0.05-0.5%, Cr: 0.005-1.0%, B: 0.00050.01% and optionally one or more of V, Ti, Nb, Al, Ni, Cu, Mo, and W, where the contents of the respective optionally present alloy element are V: 0.001-0.2%, Ti: 0.01-0.1%, Nb: 0.001-0.1%, Al: 0.01-0.2%, Ni: 0.01-0.4%, Cu: 0.01-0.8%, Mn: 0.002-1.0%, W: 0.001-1.0%, and the remainder iron and unavoidable impurities, wherein the unavoidable impurities include contents of less than 0.1% P, less than 0.05% S, and less than 0.01% N, and an Al corrosion protection layer applied to the steel substrate, wherein the component is optionally hardened. An adhesive section having an SDR value of 3-30%, determined according to ISO 25178, is provided on the free outer face of the corrosion protection coating for adhering the sheet metal component to another component.

公开(公告)号：US20240133014A1

公开(公告)日：2024-04-25

申请号：US18400261

申请日：2023-12-29

Applicant: ThyssenKrupp Steel Europe AG

Inventor： Maria Köyer ,  Manuela Ruthenberg ,  Janko Banik ,  Ulrich Etzold

IPC: C23C2/12 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/32 ,  C23C2/28 ,  C23C2/40 ,  C23F15/00

CPC classification number: C23C2/12 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/32 ,  C23C2/28 ,  C23C2/40 ,  C23F15/00

Abstract: A method for manufacturing a sheet metal component including: annealing a flat steel product comprising 0.05-0.5% C, 0.5-3% Mn, 0.06-1.7% Si, ≤0.06% P, ≤0.01% S, ≤1.0% Al, ≤0.15% Ti, ≤0.6% Nb, ≤0.01% B, ≤1.0% Cr, ≤1.0% Mo, ≤1.0% Cr+Mo, ≤0.2% Ca, ≤0.1% V, remainder iron and impurities in a continuous furnace under an atmosphere consisting of 0.1-15% hydrogen and remainder nitrogen with a specific dew point and temperature profile; applying a coating consisting of Ac3 and ≤1000° C. for a time sufficient to introduce a heat energy quantity >100,000-800,000 kJs; hot-forming the flat steel product to form the component; and cooling at least one section of the component at a cooling rate sufficient to generate hardening structures.

公开(公告)号：US20230332262A1

公开(公告)日：2023-10-19

申请号：US18210816

申请日：2023-06-16

Applicant: ThyssenKrupp Steel Europe AG ,  ThyssenKrupp AG

Inventor： Janko Banik ,  Maria Köyer ,  Dirk Rosenstock ,  Manuela Ruthenberg

IPC: C21D9/48 ,  B21D22/02 ,  C21D6/00 ,  C21D8/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40

CPC classification number: C21D9/48 ,  B21D22/022 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0405 ,  C21D8/0426 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40

Abstract: The present invention relates to a method for producing a steel component comprising a substrate and a coating, to a corresponding sleet component and to the use thereof in the automotive sector.