EP4433234A1 - Verfahren zum herstellen eines schmelztauchbeschichteten stahlblechs und schmelztauchbeschichtetes stahlblech - Google Patents
Verfahren zum herstellen eines schmelztauchbeschichteten stahlblechs und schmelztauchbeschichtetes stahlblechInfo
- Publication number
- EP4433234A1 EP4433234A1 EP22817593.1A EP22817593A EP4433234A1 EP 4433234 A1 EP4433234 A1 EP 4433234A1 EP 22817593 A EP22817593 A EP 22817593A EP 4433234 A1 EP4433234 A1 EP 4433234A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hot
- steel sheet
- dip
- zinc
- coating
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/227—Surface roughening or texturing
-
- 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
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- 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
- C23C2/006—Pattern or selective deposits
- C23C2/0062—Pattern or selective deposits without pre-treatment of the material to be coated, e.g. using masking elements such as casings, shields, fixtures or blocking elements
-
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
- C23C2/26—After-treatment
-
- 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
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/228—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length skin pass rolling or temper rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H8/00—Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects, e.g. checkered sheets
- B21H8/005—Embossing sheets or rolls
Definitions
- the invention relates to a method for producing a hot-dip coated steel sheet and a hot-dip coated steel sheet.
- hot-dip coated steel sheets with a zinc-based coating are used so that cathodic protection against corrosion can be ensured.
- cracks in the zinc-based coating do not necessarily disrupt the cathodic protection against corrosion, the risk of a corrosive attack nevertheless increases with the possibility of air humidity penetrating to the steel material (substrate).
- the coated surface of the steel sheet is treated with a conversion chemical, for example phosphating, only after forming/forming, so that surfaces of the steel material that are exposed during forming/forming are closed again.
- the presence of cracks in the coating and/or on the surface of the coating can result in them being sealed with a process medium such as (alkaline) cleaner, (alkaline) activation or (acidic) phosphating and not fully cleaned/dried can become.
- a process medium such as (alkaline) cleaner, (alkaline) activation or (acidic) phosphating and not fully cleaned/dried
- this can lead to outgassing of these components (of the process medium) in the heat treatment process, for example during KTL paint baking.
- the components (of the process medium) that settle in the crack will remain, so that subsequent contact with water, for example through diffusion through an applied layer of paint, can lead to the formation of an alkaline or acidic solution within the cracks. which attack the coating and can thus adversely affect the cathodic protection against corrosion.
- the coating can also be torn open locally through cracks and lose its passivating effect locally. In these applications, for example, moisture can penetrate the conversion layer, which can lead to corrosion and, in particular,
- cracking can damage the zinc-based coating in such a way that the layer and/or at least parts of the layer can become delaminated.
- the process conditions such as the cooling rate to cause the liquid coating to solidify, would have to be changed, for example by accelerated cooling to achieve small spangles in the coating, or the zinc-based melt with additional ones Elements are enriched, for example by adding lead as a nucleating agent.
- the object of the invention is therefore, in addition to a method for producing a hot-dip coated steel sheet, also to specify a hot-dip-coated steel sheet with which the disadvantages of the prior art can be eliminated.
- the object relating to the method for producing a hot-dip coated steel sheet is solved with the features of claim 1.
- the object relating to the hot-dip coated steel sheet is solved with the features of claim 8.
- a first teaching of the invention relates to a method for producing a hot-dip coated steel sheet, wherein an in particular cold-rolled steel substrate is provided, which is coated on one or both sides with a zinc-based coating by hot-dip to obtain a hot-dip-coated steel sheet, the steel substrate provided before hot-dip has a deterministic surface texture on one or both sides.
- the inventors have found that the crystallization behavior of zinc-based hot-dip coatings can also be controlled in a targeted manner by simple means without having to take the already known and sometimes complex measures to influence the spangle size by cooling rate and adding grain refiners/nucleating agents.
- the targeted control is embossed on the surface of one or both sides of the steel substrate by a deterministic texture before hot dipping.
- a deterministic surface texture is to be understood as meaning recurring textures which have a defined shape and/or configuration, see for example EP 2 892 663 Bl surface of the steel substrate.
- EP 2 892 663 B1 describes how cold-rolled steel substrates are skin-passed with a deterministic texture and then a cathodic anti-corrosion coating is deposited electrolytically. Electrolytic deposition is not comparable to a hot-dip process.
- the freedom of form and the deterministic distribution of the texture on the surface of the steel substrate can surprisingly influence the distribution and/or size of the crystallization nuclei of the zinc grains in the zinc-based coating.
- the crystallization nuclei of the zinc grains form at the interface between the liquid zinc-based melt and the steel substrate, so that during the course of solidification the crystals grow laterally in the coating until they collide with (their) neighboring crystals.
- Due to the present deterministic surface texture are thus due to the shape and / or Dimension of the texture preferably as impressions and / or elevations defined zones ready at or in which the crystallization is initialized and favored, so that depending on the design of the deterministic texture a preferably high density of crystallization nuclei can grow until they on (their) neighbors bump.
- crack behavior cracks within a crystal always run parallel to one another, which studies have shown. Cracks can thus propagate undisturbed within the crystal and are only stopped when they reach the grain boundary and the adjacent, differently oriented crystals. Accordingly, cracks can propagate faster and further in a few large crystals than in many small crystals. A high density of nuclei results in small crystals, so a fine crystalline coating is more resistant to macroscopic cracking.
- the deterministic texture can act on one or both sides of the surface of the steel substrate either in the course of a cold rolling process or in a separate rolling process by means of one or both sides by means of correspondingly deterministically structured rollers.
- the deterministic texture is preferably embossed into the surface of the steel substrate in the course of a cold-rolling process, the last roll stand of a cold-rolling train being equipped with at least one roll, preferably with a pair of rolls, which have a corresponding deterministic structure.
- Methods and devices for producing structuring of rolls are prior art, cf. EP 2 892 663 p.
- a deterministic topography is preferably introduced into the surface of the roller by means of a laser by removing material.
- a steel substrate is to be understood as meaning a flat steel product which can be in the form of a strip, plate or sheet.
- a cold-rolled steel substrate is preferably used. The production of cold-rolled steel substrates is also state of the art.
- the hot-dip coating of a steel substrate with a zinc-based coating is also state of the art.
- the deterministic surface texture has a closed texture with embossing.
- a closed texture on the surface of the steel substrate means that individual embossings are provided, which go deep into the substrate, but are essentially not (all) connected to one another and thus as closed. There is essentially only one continuous elevation, which is oriented essentially in the plane on the surface of the steel substrate.
- the deterministic surface texture has an open texture with elevations.
- An open texture on the surface of the steel substrate means that individual elevations are provided which protrude from the plane of the substrate, but are essentially not (all) connected to each other and are therefore considered open. There is thus also essentially only one continuous embossing, which is oriented essentially in the plane in the lowest area of the elevations of the steel substrate.
- the deterministic surface texture has at least one impression or at least one elevation, which occupies an area of between 100 and 25000 ⁇ m 2 .
- the area can be in particular at least 200 ⁇ m 2 , preferably at least 400 ⁇ m 2 and in particular at most 20,000 ⁇ m 2 , preferably at most 18,000 ⁇ m 2 .
- the zinc-based coating contains, in addition to zinc and unavoidable impurities, additional elements such as aluminum with a content of up to 10.0% by weight and/or magnesium with a content of up to 10.0% by weight in the coating.
- additional elements such as aluminum with a content of up to 10.0% by weight and/or magnesium with a content of up to 10.0% by weight in the coating.
- Elements from the group Si, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce and Cr, individually or in combination, can be contained in the coating as impurities in a total amount of up to 0.5% by weight.
- the coating also has magnesium with a content of at least 0.3% by weight, in particular at least 0.6% by weight, preferably at least 0.9% by weight.
- Aluminum can be present as an alternative or in addition to magnesium with a content of at least 0.1% by weight, in particular at least 0.3% by weight, in order, for example, to improve bonding of the coating to the steel substrate and in particular iron diffusion from the steel sheet into the coating in a heat treatment of the coated steel sheet im Essential to avoid, for example, a good adhesive suitability can be guaranteed.
- the coating preferably has magnesium with a content of at least 1.0% by weight and aluminum with a content of at least 1.0% by weight. If the coating contains aluminum and magnesium, it is referred to below as a Zn-Al-Mg coating.
- Aluminum or magnesium can each be contained in the coating in particular up to a maximum of 8.0% by weight, preferably up to a maximum of 6.0% by weight, preferably up to a maximum of 5.0% by weight.
- the thickness of the coating can be between 1.5 and 15 ⁇ m, in particular between 2 and 12 ⁇ m, preferably between 3 and 10 ⁇ m.
- the hot-dip coated steel sheet is temper-passed in order to impress a desired surface texture on the coating and/or to set the final mechanical properties in the steel sheet.
- Skin-passing can be carried out with a deterministically structured skin-passing roll, see for example EP 2 892 663 B1, or alternatively with a stochastically structured skin-passing roll, see for example EP 2 006 037 B1.
- the steel substrate can consist of a steel material with the following chemical composition in % by weight:
- Si up to 0.3%, in particular between 0.0002% and 0.3%
- N up to 0.1%, in particular up to 0.01%, and optionally one or more alloying elements from the group (Al, Cr, Cu, Nb, Mo, Ti, V, Ni, B, Sn, Ca):
- Al to 0.2%, in particular between 0.001% and 0.1%,
- Nb up to 0.1%, in particular up to 0.05%
- V up to 0.2%, in particular up to 0.1%, Ni up to 0.2%, in particular up to 0.18%, B up to 0.005%, in particular up to 0.004%, Sn up to 0.1%, in particular up to 0.05%,
- the invention relates to a hot-dip coated steel sheet comprising a steel substrate with a zinc-based coating applied to one or both sides, the steel substrate having a deterministic surface texture on one or both sides.
- a higher density of zinc grains in the coating is usually associated with a smaller, finer grain size, so that the grain boundaries on a surface under consideration can also be increased, which has a higher reactivity compared to a lower density and thus smaller grain boundaries on the surface under consideration have downstream pre- and post-treatments of the hot-dip coated steel sheet.
- the zinc grain sizes are between 20 and 250 ⁇ m, in particular up to a maximum of 220 ⁇ m, preferably up to a maximum of 170 ⁇ m, preferably up to a maximum of 130 ⁇ m, more preferably up to a maximum of 105 ⁇ m.
- the size of a zinc grain is defined, for example using a scanning electron microscope image, as the greatest possible distance between two points within a coherent grain with the same orientation.
- FIG. 1 shows scanning electron microscope (SEM) images of two surface-textured steel substrates before and after hot-dip coating with a zinc-based coating in a plan view.
- SEM scanning electron microscope
- the centroid of each area can be easily determined, with the distance between at least two adjacent centroids being 50-70 pm for the left image and for the right one, for example Recording for example was 120-150 pm.
- the grain sizes in the image on the left are up to a maximum of 200 pm and in the image on the right up to a maximum of 900 pm.
- the lower left image compared to the lower right image in Figure 1 shows that finer textures (top left) on the surface of the steel substrate result in smaller zinc grains (bottom left).
- the crystallization nuclei form preferentially at the transitions to which the indentations on the surface of the steel substrate are adjacent.
- the density of the crystallization nuclei is accordingly dependent on the dimension of the texture or on the number of textures per area. All tests showed that those steel substrates with a higher number of structures based on a constant area always had smaller zinc grains after hot-dip coating. Comparable results, which are not shown here, were also obtained with Zn-Al-Mg coatings. When considering hot-dip eutectic phase coatings (Zn-Al-Mg coating), a finer grain structure at the surface of the steel substrate is beneficial for corrosion resistance.
- the MgZn 2 in the eutectic phase represents a sacrificial anode for the zinc grains Steel sheets (pickling) or the Al phases, for example in the case of alkaline pre-treatments or post-treatments of hot-dip coated steel sheets (degreasing and/or cleaning, in particular before pickling), are attacked in the eutectic and subsequently the zinc grains.
- a protective effect anodic sacrificial mechanism
- the phases are too far apart, the cathodic protection against corrosion can no longer be guaranteed.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021129934.9A DE102021129934A1 (de) | 2021-11-17 | 2021-11-17 | Verfahren zum Herstellen eines schmelztauchbeschichteten Stahlblechs und schmelztauchbeschichtetes Stahlblech |
| PCT/EP2022/081502 WO2023088783A1 (de) | 2021-11-17 | 2022-11-10 | Verfahren zum herstellen eines schmelztauchbeschichteten stahlblechs und schmelztauchbeschichtetes stahlblech |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4433234A1 true EP4433234A1 (de) | 2024-09-25 |
| EP4433234C0 EP4433234C0 (de) | 2026-02-18 |
| EP4433234B1 EP4433234B1 (de) | 2026-02-18 |
Family
ID=84387781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22817593.1A Active EP4433234B1 (de) | 2021-11-17 | 2022-11-10 | Verfahren zum herstellen eines schmelztauchbeschichteten stahlblechs und schmelztauchbeschichtetes stahlblech |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250011910A1 (de) |
| EP (1) | EP4433234B1 (de) |
| CN (1) | CN118251280A (de) |
| DE (1) | DE102021129934A1 (de) |
| WO (1) | WO2023088783A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022114928A1 (de) * | 2022-06-14 | 2023-12-14 | Thyssenkrupp Steel Europe Ag | Verfahren zum Dressieren eines schmelztauchbeschichteten Stahlblechs und entsprechend dressiertes, schmelztauchbeschichtetes Stahlblech |
| DE102023103033A1 (de) | 2023-02-08 | 2024-08-08 | Thyssenkrupp Steel Europe Ag | Kalt geformtes Bauteil |
| DE102024107448A1 (de) | 2024-03-15 | 2025-09-18 | Thyssenkrupp Steel Europe Ag | Verfahren zum Herstellen eines schmelztauchbeschichteten Kaltbands |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5789066A (en) | 1994-09-16 | 1998-08-04 | Sidmar N.V. | Method and device for manufacturing cold rolled metal sheets or strips and metal sheets or strips obtained |
| ES2348815T3 (es) | 2007-06-22 | 2010-12-15 | Thyssenkrupp Steel Europe Ag | Producto plano de un material metalico, en particular de un material de acero, uso de un producto plano semejante asi como cilindro y procedimiento para la fabricacion de tales productos planos. |
| DE102012017703A1 (de) | 2012-09-07 | 2014-03-13 | Daetwyler Graphics Ag | Flachprodukt aus Metallwerkstoff, insbesondere einem Stahlwerkstoff, Verwendung eines solchen Flachprodukts sowie Walze und Verfahren zur Herstellung solcher Flachprodukte |
| DE102015200764A1 (de) * | 2014-01-22 | 2015-07-23 | Sms Siemag Ag | Verfahren und Anlage zum Schmelztauchbeschichten von warmgewalztem Stahlband |
| DE102019214136A1 (de) * | 2019-09-17 | 2021-03-18 | Thyssenkrupp Steel Europe Ag | Stahlblech mit einer deterministischen Oberflächenstruktur |
| DE102019214135A1 (de) * | 2019-09-17 | 2021-03-18 | Thyssenkrupp Steel Europe Ag | Stahlblech mit einer deterministischen Oberflächenstruktur |
| DE102019215051B4 (de) * | 2019-09-30 | 2024-11-21 | Thyssenkrupp Steel Europe Ag | Stahlblech mit einer deterministischen Oberflächenstruktur und Verfahren zur Herstellung des Stahlblechs mit einer deterministischen Oberflächenstruktur |
| DE102020207561A1 (de) | 2020-06-18 | 2021-12-23 | Thyssenkrupp Steel Europe Ag | Dressiertes und beschichtetes Stahlblech sowie Verfahren zu seiner Herstellung |
-
2021
- 2021-11-17 DE DE102021129934.9A patent/DE102021129934A1/de active Pending
-
2022
- 2022-11-10 CN CN202280076046.4A patent/CN118251280A/zh active Pending
- 2022-11-10 EP EP22817593.1A patent/EP4433234B1/de active Active
- 2022-11-10 US US18/710,024 patent/US20250011910A1/en active Pending
- 2022-11-10 WO PCT/EP2022/081502 patent/WO2023088783A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021129934A1 (de) | 2023-05-17 |
| WO2023088783A1 (de) | 2023-05-25 |
| EP4433234C0 (de) | 2026-02-18 |
| CN118251280A (zh) | 2024-06-25 |
| EP4433234B1 (de) | 2026-02-18 |
| US20250011910A1 (en) | 2025-01-09 |
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