EP4474517A3 - Method for producing a steel component provided with a coating from a flat steel product - Google Patents
Method for producing a steel component provided with a coating from a flat steel product Download PDFInfo
- Publication number
- EP4474517A3 EP4474517A3 EP24200467.9A EP24200467A EP4474517A3 EP 4474517 A3 EP4474517 A3 EP 4474517A3 EP 24200467 A EP24200467 A EP 24200467A EP 4474517 A3 EP4474517 A3 EP 4474517A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- flat steel
- steel product
- corrosion coating
- forming
- sup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 16
- 239000010959 steel Substances 0.000 title abstract 16
- 239000011248 coating agent Substances 0.000 title abstract 7
- 238000000576 coating method Methods 0.000 title abstract 7
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 12
- 238000005260 corrosion Methods 0.000 abstract 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 4
- 229910052782 aluminium Inorganic materials 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 3
- 239000004411 aluminium Substances 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/12—Aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/673—Quenching devices for die quenching
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Coating With Molten Metal (AREA)
Abstract
Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen eines Stahlbauteils durch Warmumformen eines mit einem aluminiumbasierten Korrosionsschutzüberzug beschichteten Stahlflachprodukts, ein durch Warmumformung eines mit einem aluminiumbasierten Korrosionsschutzüberzug beschichteten Stahlflachprodukts erzeugtes Stahlbauteil sowie ein Stahlflachprodukt für die Herstellung eines solchen Stahlbauteils. Das Verfahren umfasst mindestens die folgenden Schritte: a) Zurverfügungstellen eines mit einem aluminiumbasierten Korrosionsschutzüberzug versehenen Stahlflachprodukts; b) Erwärmen des beschichteten Stahlflachprodukts in einem Warmumformofen, dessen Ofenatmosphäre mindestens 16 Volumen-% Sauerstoff enthält und einen Taupunkt von -20 °C bis +15 °C aufweist; c) optionales Halten des beschichteten Stahlflachprodukts im Warmumformofen; d) Transport des erwärmten Stahlflachprodukts vom Erwärmungsofen zu einem Umformwerkzeug und Einlegen des Stahlflachprodukts in das Umformwerkzeug; e) Umformen und gleichzeitiges Abkühlen des Stahlflachprodukts im Umformwerkzeug. Das mit einem aluminiumbasierten Korrosionsschutzüberzug versehene Stahlflachprodukt weist nach dem Erwärmen oder gegebenenfalls nach dem optionalen Halten auf der Oberfläche des Korrosionsschutzüberzugs eine Aluminiumoxidschicht mit einer mittleren Dicke von mindestens 50 nm auf, wobei auf der Aluminiumoxidschicht höchstens 10 AlN-Stäbchen pro 1000 µm<sup>2</sup> vorhanden sind. Das nach dem Umformen erhaltende Stahlbauteil weist auf der Oberfläche des Korrosionsschutzüberzugs eine Aluminiumoxidschicht mit einer mittleren Dicke von mindestens 50 nm auf, wobei auf der Aluminiumoxidschicht pro 1000 µm<sup>2</sup> höchstens 10 AlN-Stäbchen vorhanden sind.The present invention relates to a method for producing a steel component by hot forming a flat steel product coated with an aluminum-based anti-corrosion coating, a steel component produced by hot forming a flat steel product coated with an aluminum-based anti-corrosion coating, and a flat steel product for producing such a steel component. The method comprises at least the following steps: a) providing a flat steel product provided with an aluminum-based anti-corrosion coating; b) heating the coated flat steel product in a hot forming furnace whose furnace atmosphere contains at least 16% by volume of oxygen and has a dew point of -20 °C to +15 °C; c) optionally holding the coated flat steel product in the hot forming furnace; d) transporting the heated flat steel product from the heating furnace to a forming tool and placing the flat steel product in the forming tool; e) forming and simultaneously cooling the flat steel product in the forming tool. The flat steel product provided with an aluminium-based anti-corrosion coating has, after heating or, where applicable, after optional holding, an aluminium oxide layer with an average thickness of at least 50 nm on the surface of the anti-corrosion coating, with a maximum of 10 AlN rods per 1000 µm<sup>2</sup> being present on the aluminium oxide layer. The steel component obtained after forming has, on the surface of the anti-corrosion coating, an aluminium oxide layer with an average thickness of at least 50 nm, with a maximum of 10 AlN rods per 1000 µm<sup>2</sup> being present on the aluminium oxide layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24200467.9A EP4474517A3 (en) | 2018-04-05 | 2018-04-05 | Method for producing a steel component provided with a coating from a flat steel product |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18726728.1A EP3775299B1 (en) | 2018-04-05 | 2018-04-05 | Method for producing from a steel flat a steel component provided with a coating |
| EP24200467.9A EP4474517A3 (en) | 2018-04-05 | 2018-04-05 | Method for producing a steel component provided with a coating from a flat steel product |
| PCT/EP2018/058717 WO2019192703A1 (en) | 2018-04-05 | 2018-04-05 | Method for producing from a steel flat a steel component provided with a coating, steel flat and steel component |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18726728.1A Division EP3775299B1 (en) | 2018-04-05 | 2018-04-05 | Method for producing from a steel flat a steel component provided with a coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4474517A2 EP4474517A2 (en) | 2024-12-11 |
| EP4474517A3 true EP4474517A3 (en) | 2025-03-05 |
Family
ID=62235915
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24200467.9A Pending EP4474517A3 (en) | 2018-04-05 | 2018-04-05 | Method for producing a steel component provided with a coating from a flat steel product |
| EP18726728.1A Active EP3775299B1 (en) | 2018-04-05 | 2018-04-05 | Method for producing from a steel flat a steel component provided with a coating |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18726728.1A Active EP3775299B1 (en) | 2018-04-05 | 2018-04-05 | Method for producing from a steel flat a steel component provided with a coating |
Country Status (5)
| Country | Link |
|---|---|
| EP (2) | EP4474517A3 (en) |
| CN (1) | CN112041467A (en) |
| ES (1) | ES2989905T3 (en) |
| PL (1) | PL3775299T3 (en) |
| WO (1) | WO2019192703A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020114053B4 (en) | 2020-05-26 | 2022-07-14 | Audi Aktiengesellschaft | Process arrangement for the production of a hot-formed and press-hardened sheet steel component |
| DE102020124488A1 (en) | 2020-09-21 | 2022-03-24 | Thyssenkrupp Steel Europe Ag | Sheet metal component and method for its manufacture |
| EP4283003A1 (en) * | 2022-05-24 | 2023-11-29 | ThyssenKrupp Steel Europe AG | Method for producing a sheet metal part |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006051543A (en) * | 2004-07-15 | 2006-02-23 | Nippon Steel Corp | Hot-pressing method and hot-pressed parts for high-strength automotive parts using cold-rolled, hot-rolled steel sheets or Al-based, Zn-plated steel sheets |
| EP3587104B1 (en) | 2006-10-30 | 2022-03-30 | ArcelorMittal | Coated steel strips |
| BRPI0915898B1 (en) * | 2008-07-11 | 2017-07-18 | Nippon Steel & Sumitomo Metal Corporation | COATED ALUMINUM STEEL SHEET FOR QUICK HEATING PRESSURE HEATING METHOD, SAME PRODUCTION METHOD AND HOT STEMPING METHOD WITH QUICK HEATING USING THAT STEEL PLATE |
| BR112013025401B1 (en) * | 2011-04-01 | 2020-05-12 | Nippon Steel Corporation | HIGH RESISTANCE HOT PRINTED PIECE AND PRODUCTION METHOD OF THE SAME |
| EP2848709B1 (en) * | 2013-09-13 | 2020-03-04 | ThyssenKrupp Steel Europe AG | Method for producing a steel component with an anti-corrosive metal coating and steel component |
| PL2993248T3 (en) * | 2014-09-05 | 2020-11-30 | Thyssenkrupp Steel Europe Ag | Flat steel product with an Al coating, method for producing the same, and method for producing a hot-formed steel component |
-
2018
- 2018-04-05 EP EP24200467.9A patent/EP4474517A3/en active Pending
- 2018-04-05 ES ES18726728T patent/ES2989905T3/en active Active
- 2018-04-05 CN CN201880092203.4A patent/CN112041467A/en active Pending
- 2018-04-05 WO PCT/EP2018/058717 patent/WO2019192703A1/en active Application Filing
- 2018-04-05 EP EP18726728.1A patent/EP3775299B1/en active Active
- 2018-04-05 PL PL18726728.1T patent/PL3775299T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP3775299A1 (en) | 2021-02-17 |
| ES2989905T3 (en) | 2024-11-28 |
| EP3775299C0 (en) | 2024-09-18 |
| PL3775299T3 (en) | 2024-12-16 |
| EP4474517A2 (en) | 2024-12-11 |
| EP3775299B1 (en) | 2024-09-18 |
| WO2019192703A1 (en) | 2019-10-10 |
| CN112041467A (en) | 2020-12-04 |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| RIC1 | Information provided on ipc code assigned before grant |
Ipc: C23C 2/12 20060101ALI20250130BHEP Ipc: C21D 9/56 20060101ALI20250130BHEP Ipc: C21D 1/76 20060101ALI20250130BHEP Ipc: C21D 1/673 20060101AFI20250130BHEP |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THYSSENKRUPP STEEL EUROPE AG |