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1. (WO2019002026) METHOD FOR PRODUCING A STEEL COMPONENT PROVIDED WITH A COATING, AND STEEL COMPONENT
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Pub. No.: WO/2019/002026 International Application No.: PCT/EP2018/066264
Publication Date: 03.01.2019 International Filing Date: 19.06.2018
IPC:
C21D 9/46 (2006.01) ,B32B 15/01 (2006.01) ,C23C 2/12 (2006.01) ,C23C 2/26 (2006.01)
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
9
Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor
46
for sheet metals
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15
Layered products essentially comprising metal
01
all layers being exclusively metallic
C CHEMISTRY; METALLURGY
23
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
C
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
2
Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
04
characterised by the coating material
12
Aluminium or alloys based thereon
C CHEMISTRY; METALLURGY
23
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
C
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
2
Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
26
After-treatment
Applicants:
THYSSENKRUPP STEEL EUROPE AG [DE/DE]; Kaiser-Wilhelm-Straße 100 47166 Duisburg, DE
THYSSENKRUPP AG [DE/DE]; ThyssenKrupp Allee 1 45143 Essen, DE
Inventors:
RUTHENBERG, Manuela; DE
KÖYER, Maria; DE
Agent:
THYSSENKRUPP INTELLECTUAL PROPERTY GMBH; ThyssenKrupp Allee 1 45143 Essen, DE
Priority Data:
10 2017 211 076.729.06.2017DE
Title (EN) METHOD FOR PRODUCING A STEEL COMPONENT PROVIDED WITH A COATING, AND STEEL COMPONENT
(FR) PROCÉDÉ DESTINÉ À FABRIQUER UNE PIÈCE EN ACIER POURVUE D'UN REVÊTEMENT MÉTALLIQUE ET PIÈCE EN ACIER
(DE) VERFAHREN ZUM HERSTELLEN EINES MIT EINEM ÜBERZUG VERSEHENEN STAHLBAUTEILS UND STAHLBAUTEIL
Abstract:
(EN) The invention relates to a method for producing a steel component by forming a flat steel product coated with an anti-corrosion coating and a steel component produced from a steel substrate coated with an anti-corrosion coating. The steel component is produced by providing a flat steel product coated with an aluminium-based anti-corrosion coating, heat-treating a blank formed from the coated flat steel product in a furnace, wherein 0.0034 °C/min < Q < 0.021 °C/min, with Q = (T * d)/(t * L), T = furnace temperature in °C, d = blank thickness in mm, t = dwell time of the blank in the furnace in min, L = furnace length in m, and shaping the blank in a shaping tool. The steel component comprises a steel substrate and an anti-corrosion coating provided at least on one side of the steel substrate, which coating comprises at least one first and one second silicon-rich layer (Si1, Si2) and one first and one second low-silicon layer (A, B), wherein the quotient X of the thickness (dB) of the second low-silicon layer (B) in µm by the thickness (dA) of the third low-silicon layer (A) in µm is at least 0.4 and at most 1.1. The abstract should be shown with figure 1.
(FR) L'invention concerne un procédé destiné à fabriquer une pièce en acier par moulage d'un produit plat en acier recouvert d'un revêtement métallique anti-corrosif et une pièce en acier fabriquée à partir d'un substrat en acier recouvert d'un revêtement métallique anti-corrosif. La pièce en acier est fabriquée par mise à disposition d'un produit plat en acier recouvert d'un revêtement métallique anti-corrosif à base d’aluminium, par traitement thermique, dans un four, d'une plaque formée à partir du produit plat en acier recouvert, où 0,0034 °C/min < Q < 0,021 °C/min, avec Q = (T * d)/(t * L), T = température de four en °C, d = épaisseur de plaque en mm, t = durée de séjour dans le four de la plaque en min, L = longueur de four en m, et par formage de la plaque dans un outil de formage. La pièce en acier comprend un substrat en acier et un revêtement métallique anti-corrosif présent au moins sur un côté du substrat en acier, lequel revêtement comprend au moins une première et une seconde couche à teneur élevée en silicium (Si1, Si2) ainsi qu'une première et une seconde couche à faible teneur en silicium (A, B), le ratio X de l'épaisseur (dB) de la seconde couche à faible teneur en silicium (B) en µm sur l'épaisseur (dA) de la première couche à faible teneur en silicium (A) en µm étant supérieur ou égal à 0,4 et inférieur à 1,1.
(DE) Die Erfindung betrifft ein Verfahren zum Herstellen eines Stahlbauteils durch Formen eines mit einem Korrosionsschutzüberzug beschichteten Stahlflachprodukts und ein aus einem mit einem Korrosionsschutzüberzug beschichteten Stahlsubstrat hergestelltes Stahlbauteil. Das Stahlbauteil wird durch Zurverfügungstellen eines mit einem aluminiumbasierten Korrosionsschutzüberzug beschichteten Stahlflachprodukts, Wärmebehandeln einer aus dem beschichteten Stahlflachprodukt gebildeten Platine in einem Ofen, wobei gilt 0,0034 °C/min < Q < 0,021 °C/min, mit Q = (T * d)/(t * L), T = Ofentemperatur in °C, d = Platinendicke in mm, t = Verweildauer der Platine im Ofen in min, L = Ofenlänge in m und Umformen der Platine in einem Umformwerkzeug hergestellt. Das Stahlbauteil umfasst ein Stahlsubstrat und einen mindestens auf einer Seite des Stahlsubstrats vorhandenen Korrosionsschutzüberzug, der mindestens eine erste und eine zweite siliziumreiche Schicht (Si1, Si2) sowie eine erste und eine zweite siliziumarme Schicht (A, B) umfasst, wobei der Quotient X aus der Dicke (dB) der zweiten siliziumarmen Schicht (B) in µm durch die Dicke (dA) der ersten siliziumarmen Schicht (A) in µm mindestens 0,4 und höchstens 1,1 beträgt. Die Zusammenfassung soll mit Figur 1 gezeigt werden.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)