公开(公告)号：US12054112B2

公开(公告)日：2024-08-06

申请号：US17275666

申请日：2019-09-12

Applicant: ArcelorMittal

Inventor： Elie Gibeau ,  Yannis Kheyati ,  Nabil Menegady

IPC: B60R19/18 ,  B60R19/02 ,  B60R19/04

CPC classification number: B60R19/18 ,  B60R19/023 ,  B60R19/04 ,  B60R2019/1813

Abstract: A cross member (1) for a bumper beam includes an outer beam (2) with a main beam portion (3) comprising an upper beam wall (12), a lower beam wall (14) and a front beam wall (16), defining together a beam inner volume (17) open in a back direction, a reinforcement element (4) defining a reinforced area (24) of the outer beam (2), located inside a part of said beam inner volume (17) and having a cross section, defining a reinforcement inner volume (25) open in the rear direction, a closing plate (6) closing at least a part of the beam inner volume (17). The cross section of the reinforcement element (4) has a shape which is not matching the shape of the outer beam (2) in the reinforced area (24).

公开(公告)号：US20240227080A1

公开(公告)日：2024-07-11

申请号：US18417759

申请日：2024-01-19

Applicant: ArcelorMittal

Inventor： Francis SCHMIT ,  Maria POIRIER ,  Sadok GAIED

IPC: B23K26/322 ,  B23K26/12 ,  B23K26/32 ,  B23K26/323 ,  B23K35/30 ,  B62B3/02 ,  B62B3/10 ,  B62B3/12 ,  C21D1/18 ,  C21D1/673 ,  C21D9/46 ,  C21D9/50 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  B23K26/24 ,  B23K101/00 ,  B23K101/18 ,  B23K103/04 ,  C22C38/48

CPC classification number: B23K26/322 ,  B23K26/123 ,  B23K26/32 ,  B23K26/323 ,  B23K35/3073 ,  B62B3/02 ,  B62B3/106 ,  B62B3/12 ,  C21D1/185 ,  C21D1/673 ,  C21D9/46 ,  C21D9/50 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  B23K26/24 ,  B23K2101/006 ,  B23K2101/185 ,  B23K2103/04 ,  B62B2202/22 ,  B62B2205/30 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/48

Abstract: A method for producing a part includes providing a first and a second precoated sheet (1,2), butt welding the first and second precoated sheets (1) to obtain a blank (15), and heating the blank (15) to a heat treatment temperature at least 10° C. lower than the full austenitization temperature of the weld joint (22) and at least 15° C. higher than a minimum temperature Tmin:






T
min

(

°
⁢


C
.


)

=


AC
⁢
3
⁢

(
WJ
)


-



α
IC
max


1
⁢
0
⁢
0


⁢



(


Ac
⁢

3
⁢

(

W
⁢
J

)


-

6
⁢
7
⁢
3

-

40
×
Al


)

.









where
Ac3(WJ) is the full austenitization temperature of the weld joint (22)










α
IC
max

=


(

1
-



(

1
+
ρ

)

⁢

(



max
⁡
(

1
;
ρ

)

⁢
T
⁢

s
2


-

3
⁢
5
⁢
0


)








(

1
-
β

)

⁢

(


ρ
⁢
T
⁢

s
2


+

T
⁢

s
1



)


+









β
⁢

(

1
+
ρ

)

⁢

(


3
⁢
1
⁢
3
⁢
0
⁢

C

F
⁢
W



+









750
)

-

3
⁢
5
⁢
0
×

(

1
+
ρ

)











)

×
100


,






where

Ts1 and Ts2 are the ultimate tensile strengths of the strongest and the weakest substrate after press-hardening
CFW is the carbon content of the filler material
β is the proportion of filler material
ρ is the ratio between the thicknesses of the weakest and the strongest substrate

The method also includes holding the blank (15) at the heat treatment temperature for a time between 2 and 10 minutes; and press-forming the blank (15) into a part and cooling.

公开(公告)号：US20240209485A1

公开(公告)日：2024-06-27

申请号：US18557354

申请日：2022-04-29

Applicant: ArcelorMittal

Inventor： Sebastian COBO ,  François STOUVENOT ,  Emmanuel LUCAS

IPC: C22C38/22 ,  C21D1/673 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/26 ,  C22C38/32

CPC classification number: C22C38/22 ,  C21D1/673 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/26 ,  C22C38/32 ,  C21D2211/002 ,  C21D2211/004 ,  C21D2211/005 ,  C21D2211/008

Abstract: A steel sheet made of a steel having a composition including, C: 0.3-0.4%, Mn: 0.5-1.0%, Si: 0.4-0.8%, Cr: 0.1-1.0%, Mo: 0.1-0.5%, Nb: 0.01-0.1%, Al: 0.01-0.1%, Ti: 0.008-0.03%, B: 0.0005-0.003%, P≤0.020%, Ca≤0.001%, S≤0.004%, N≤0.005% and including optionally Ni

公开(公告)号：US20240183153A1

公开(公告)日：2024-06-06

申请号：US18283857

申请日：2022-04-06

Applicant: ArcelorMittal

Inventor： Luis Augusto LANCELLOTTI ZAPPAROLLI PUPIN ,  Johann ANDRADE FERRARETO ,  Lucas FADINI FAVARATO ,  Emilie DUPONT

IPC: E04B5/40

CPC classification number: E04B5/40 ,  E04B2103/02 ,  E04B2103/06

Abstract: A floor deck structure (1) including a profiled metallic sheet (2) including at least a first, a second and a third upper portion (7) separated by a first and a second longitudinal groove (3) comprising a base (5), a first lateral wall (13) linking the base (5) to one of the upper portions and a second lateral wall (14) linking the base (5) to an adjacent upper portion (7); a first and a second rebar truss (10) each extending longitudinally in and/or above, respectively, the first and second longitudinal groove (3) and a plurality of connectors (9a) fastening the first and the second rebar trusses (10) to the profiled metallic sheet (2).

公开(公告)号：US20240157421A1

公开(公告)日：2024-05-16

申请号：US18420054

申请日：2024-01-23

Applicant: ArcelorMittal

Inventor： Ronan JACOLOT ,  Didier HUIN ,  Christian MORETTO ,  Daniele CORSELLO

IPC: B21B37/76 ,  B21B45/02 ,  C21D1/84 ,  C21D8/02 ,  C21D9/46 ,  C21D11/00 ,  G01K13/04 ,  G01K17/08

CPC classification number: B21B37/76 ,  B21B45/0218 ,  C21D1/84 ,  C21D8/0263 ,  C21D9/46 ,  C21D11/005 ,  G01K13/04 ,  G01K17/08

Abstract: A method for determining the temperature of a metal strip (1) inside a cooling apparatus (4) of a hot rolling installation is implemented by an electronic device (12). This method includes acquiring a temperature measure of a strip portion at a current time instant; estimating, at the current time instant, a heat flux extracted from the strip portion inside the cooling apparatus according to a thermal model, and computing a strip portion temperature at a next time instant from the acquired temperature measure and the estimated extracted heat flux. The thermal model models an air cooling of the strip portion, a coolant header cooling of the strip portion by a coolant header and a remaining coolant cooling of the strip portion, wherein for the coolant header cooling the model models both an impingement cooling of the strip portion and a parallel flow cooling of the strip portion.

公开(公告)号：US20240132984A1

公开(公告)日：2024-04-25

申请号：US18278027

申请日：2022-02-23

Applicant: ArcelorMittal

Inventor： Hugo DA GAMA CAMPOS ,  Jean-Martin VAN DER HOEVEN

IPC: C21C5/52 ,  C21B5/00 ,  C21B5/06 ,  C21B13/00 ,  C21C5/38 ,  C21C5/46

CPC classification number: C21C5/527 ,  C21B5/006 ,  C21B5/008 ,  C21B5/06 ,  C21B13/0073 ,  C21C5/38 ,  C21C5/4673 ,  C21B2300/04 ,  C21C2100/02 ,  C21C2300/06

Abstract: A method of manufacturing a steel product into at least two different steelmaking units wherein an expected level of CO2 emissions for the manufacturing of said product in each respective steelmaking unit is calculated.

公开(公告)号：US20240118139A1

公开(公告)日：2024-04-11

申请号：US18265806

申请日：2021-12-08

Applicant: ArcelorMittal

Inventor： Noëlle MICQUE ,  Gwenaël LE NOC ,  Morgan FERTE

IPC: G01J5/00 ,  G01J5/10 ,  G01J5/52 ,  G01J5/80

CPC classification number: G01J5/0003 ,  G01J5/0022 ,  G01J5/10 ,  G01J5/52 ,  G01J5/802 ,  G01J2005/0029 ,  G01J2005/0074

Abstract: A method for estimating the temperature of a steel product including a calibration step wherein the intensities at 5 wavelengths ranging from 0.9 to 2.1 μm are recorded for several measurement condition and spectral attenuation coefficients are computed, a measurement step wherein the intensities at said 5 wavelengths are recorded and spectral attenuation coefficients are computed for several temperatures and a comparison step wherein a probability test is performed to estimate the steel product temperature.

公开(公告)号：US20240117457A1

公开(公告)日：2024-04-11

申请号：US18529599

申请日：2023-12-05

Applicant: ARCELORMITTAL

Inventor： Xavier GARAT ,  Ian Alberto ZUAZO RODRIGUEZ ,  Irène DE DIEGO CALDERON

IPC: C21D9/46 ,  B32B15/01 ,  C21D6/00 ,  C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

CPC classification number: C21D9/46 ,  B32B15/012 ,  B32B15/013 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0236 ,  C21D8/0268 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  B32B2605/00 ,  C21D2211/001 ,  C21D2211/004 ,  C21D2211/005

Abstract: A cold rolled and annealed steel sheet is provided which includes by weight: 0.6

公开(公告)号：US20240110257A1

公开(公告)日：2024-04-04

申请号：US18538254

申请日：2023-12-13

Applicant: ArcelorMittal

Inventor： David ZAPICO ALVAREZ ,  Florence BERTRAND ,  Joris GIROUX

IPC: C21D9/46 ,  B32B15/01 ,  C21D1/26 ,  C21D1/76 ,  C21D6/00 ,  C21D9/00 ,  C21D9/56 ,  C21D9/573 ,  C22C18/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/14 ,  C22C38/38 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C23C2/00 ,  C23C2/02 ,  C23C2/04 ,  C23C2/06 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40

CPC classification number: C21D9/46 ,  B32B15/013 ,  C21D1/26 ,  C21D1/76 ,  C21D6/002 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D9/0062 ,  C21D9/561 ,  C21D9/573 ,  C22C18/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/06 ,  C22C38/14 ,  C22C38/38 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C23C2/0038 ,  C23C2/02 ,  C23C2/0224 ,  C23C2/024 ,  C23C2/04 ,  C23C2/06 ,  C23C2/261 ,  C23C2/28 ,  C23C2/40 ,  C21D1/74 ,  C21D2201/02 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008

Abstract: A galvannealed steel sheet ontainabel by a method including the provision of a specific steel sheet, a recrystallization annealing with specific heating, soaking and cooling sub-steps using an inert gas, a hot-dip galvanizing and an alloying treatment.

公开(公告)号：US11939221B2

公开(公告)日：2024-03-26

申请号：US17055780

申请日：2019-04-10

Applicant: ArcelorMittal

Inventor： Thi Tan Vu ,  Abel Alvarez-Alvarez ,  Roberto Suarez Sanchez

IPC: C01B32/198

CPC classification number: C01B32/198

Abstract: A method for the manufacture of reduced graphene oxide from electrode graphite scrap including the provision of the graphite electrode scrap, the grinding of electrode graphite scrap to obtain ground graphite electrode, an oxidation step of the ground graphite electrode to obtain graphene oxide and the reduction into reduced graphene oxide.