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公开(公告)号：US20190271057A1
公开(公告)日：2019-09-05
申请号：US16413825
申请日：2019-05-16
Applicant: ArcelorMittal
Inventor： Pascal DRILLET , Dominique Spehner , Ronald Kefferstein
Abstract: A pre-coated steel strip is provided. The steel strip includesa strip of base steel having a length, a width, a first side, and a second side. The length of the strip is at least 100 m and the width is at least 600 mm. An aluminum or an aluminum alloy pre-coating is on at least part of at least one of the first or second sides of the strip of base steel. A thickness tp of the pre-coating is from 20 to 33 micrometers at every location on at least one of the first or second sides. Processes, coated stamped products and land motor vehicles are also provided.
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公开(公告)号：US12012640B2
公开(公告)日：2024-06-18
申请号：US18537158
申请日：2023-12-12
Applicant: ArcelorMittal
Inventor： Pascal Drillet , Dominique Spehner , Ronald Kefferstein
CPC classification number: C21D9/46 , B32B15/012 , C23C2/12 , C23C2/26 , C23C2/40 , Y10T428/12389 , Y10T428/12396 , Y10T428/12757
Abstract: A method of forming a hot stamped coated steel product includes providing a precoated steel strip, the precoated steel strip including a base steel having a first side and a second side, and a precoating on at least one of the first side and the second side, the precoating being made of aluminum or an aluminum alloy; heating the precoated steel strip in a furnace, wherein the precoated strip experiences a temperature rise at a heating rate (Vc) between 4° and 12° C./s, wherein Vc is a mean heating rate between 20 and 700 C; removing the heated precoated steel strip from the furnace; and then hot stamping the precoated strip to deform the precoated steel strip into a hot stamped coated steel product, the hot stamped coated steel product having a coating including, proceeding from the base steel outwards: (a) an interdiffusion layer, (b) an intermediate layer, (c) an intermetallic layer, and (d) a superficial layer.
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Patent Agency Ranking
公开(公告)号：US11326227B2
公开(公告)日：2022-05-10
申请号：US17319306
申请日：2021-05-13
Applicant: ArcelorMittal
Inventor： Pascal Drillet , Dominique Spehner , Ronald Kefferstein
Abstract: A pre-coated steel strip is provided. The steel strip includes a strip of base steel having a length, a width, a first side, and a second side. The length of the strip is at least 100 m and the width is at least 600 mm. An aluminum or an aluminum alloy pre-coating is on at least part of at least one of the first or second sides of the strip of base steel. A thickness tp of the pre-coating is from 20 to 33 micrometers at every location on at least one of the first or second sides. Processes, coated stamped products and land motor vehicles are also provided.
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公开(公告)号：US20220002834A1
公开(公告)日：2022-01-06
申请号：US17479050
申请日：2021-09-20
Applicant: ArcelorMittal
Inventor： Pascal DRILLET , Dominique Spehner , Ronald Kefferstein
Abstract: A pre-coated steel strip is provided. The steel strip includes a strip of base steel having a length, a width, a first side, and a second side. The length of the strip is at least 100 m and the width is at least 600 mm. An aluminum or an aluminum alloy pre-coating is on at least part of at least one of the first or second sides of the strip of base steel. A thickness tp of the pre-coating is from 20 to 33 micrometers at every location on at least one of the first or second sides. Processes, coated stamped products and land motor vehicles are also provided.
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公开(公告)号：US10597747B2
公开(公告)日：2020-03-24
申请号：US16414022
申请日：2019-05-16
Applicant: ArcelorMittal
Inventor： Pascal Drillet , Dominique Spehner , Ronald Kefferstein
Abstract: A pre-coated steel strip is provided. The steel strip includes a strip of base steel having a length, a width, a first side, and a second side. The length of the strip is at least 100 m and the width is at least 600 mm. An aluminum or an aluminum alloy pre-coating is on at least part of at least one of the first or second sides of the strip of base steel. A thickness tp of the pre-coating is from 20 to 33 micrometers at every location on at least one of the first or second sides. Processes, coated stamped products and land motor vehicles are also provided.
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公开(公告)号：US20190271056A1
公开(公告)日：2019-09-05
申请号：US16413799
申请日：2019-05-16
Applicant: ArcelorMittal
Inventor： Pascal DRILLET , Dominique Spehner , Ronald Kefferstein
Abstract: A pre-coated steel strip is provided. The steel strip includes a strip of base steel having a length, a width, a first side, and a second side. The length of the strip is at least 100 m and the width is at least 600 mm. An aluminum or an aluminum alloy pre-coating is on at least part of at least one of the first or second sides of the strip of base steel. A thickness tp of the pre-coating is from 20 to 33 micrometers at every location on at least one of the first or second sides. Processes, coated stamped products and land motor vehicles are also provided.
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公开(公告)号：US20170260603A1
公开(公告)日：2017-09-14
申请号：US15606770
申请日：2017-05-26
Applicant: ArcelorMittal
Inventor： Pascal DRILLET , Dominique Spehner , Ronald Kefferstein
Abstract: A pre-coated steel strip is provided. The steel strip includes a strip of base steel having a length, a width, a first side, and a second side. The length of the strip is at least 100 m and the width is at least 600 mm. An aluminum or an aluminum alloy pre-coating is on at least part of at least one of the first or second sides of the strip of base steel. A thickness tp of the pre-coating is from 20 to 33 micrometers at every location on at least one of the first or second sides. Processes, coated stamped products and land motor vehicles are also provided.
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