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公开(公告)号：US20240263260A1
公开(公告)日：2024-08-08
申请号：US18290078
申请日：2022-05-19
Applicant: ArcelorMittal
Inventor： Sarah SALAME , Odile CARRIER , Jose BARROS LORENZO , Jon REYES RODRIGUEZ , Marcelo ANDRADE , Dmitri BOULANOV , Dennis LU , George TSVIK
CPC classification number: C21B13/0073 , C21B13/029 , C21B2100/282 , C25B1/02 , C25B15/081
Abstract: A method for manufacturing direct reduced iron wherein oxidized iron is reduced in a direct reduction furnace by a reducing gas, the direct reduction furnace including a reduction zone, a transition zone and a cooling zone, a carbon-bearing liquid being injected below the reduction zone.
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公开(公告)号：US20240263259A1
公开(公告)日：2024-08-08
申请号：US18559901
申请日：2021-05-26
Applicant: ArcelorMittal
Inventor： George TSVIK , Dmitri BOULANOV , Jon REYES RODRIGUEZ , Odile CARRIER , Sarah SALAME , José BARROS LORENZO , Marcelo ANDRADE , Dennis LU
CPC classification number: C21B7/002 , C21B13/0073 , C21B2100/22 , C21B2100/26 , C21B2100/80
Abstract: A method of operating a network of plants comprising a blast furnace, a direct reduction furnace, a CO2 conversion unit wherein blast furnace top gas is subjected to a CO2 conversion step to produce a liquid carbon product which is injected into the direct reduction furnace.
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公开(公告)号：US12054799B2
公开(公告)日：2024-08-06
申请号：US16064596
申请日：2016-12-20
Applicant: ArcelorMittal
Inventor： Maya Gospodinova , Véronique Hebert , Pavan Venkatasurya
IPC: C21D9/46 , B23K11/11 , B32B15/01 , C21D1/18 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/04 , C22C38/06 , C22C38/22 , C22C38/26 , C22C38/34 , C22C38/38 , C23C2/06 , C23C2/40
CPC classification number: C21D9/46 , B23K11/11 , B32B15/013 , C21D1/18 , C21D6/002 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0247 , C21D8/0263 , C22C38/00 , C22C38/04 , C22C38/06 , C22C38/22 , C22C38/26 , C22C38/34 , C22C38/38 , C23C2/06 , C23C2/40 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008
Abstract: A method for producing a steel sheet is provided. The method includes providing a cold-rolled steel sheet including in weight %: 0.15%≤C≤0.23%, 1.4%≤Mn≤2.6%, 0.6%≤Si≤1.5%, 0.02%≤Al≤1.0%, with 1.0%≤Si+Al≤2.0%, 0≤Nb≤0.035%, 0≤Mo≤0.3%, 0≤Cr≤0.3%, and a remainder of Fe and unavoidable impurities, annealing the steel sheet at an annealing temperature between Ac1 and Ac3 to obtaining at least 40% austenite and at least 40% intercritical ferrite, quenching the sheet from at least 600° C. at a cooling rate of at least 20° C./s to a quenching temperature between 180° C. and 260° C., heating the sheet to a partitioning temperature between 375° C. and 470° C. and maintaining the sheet at this partitioning temperature for a partitioning time Pt between 25 s and 440 s, then cooling the sheet to room temperature. A steel sheet is also provided.
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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
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).
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25.发明公开公开(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.-
Patent Agency Ranking
26.发明公开公开(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
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
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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).
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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
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.
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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
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.
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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
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.
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