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公开(公告)号:US20250145067A1
公开(公告)日:2025-05-08
申请号:US18715481
申请日:2022-12-01
Applicant: POSCO CO., LTD
Inventor: Jaehyun Kim
IPC: B60N2/68
Abstract: The present invention provides a seat back comprising: an upper frame; a first side frame coupled to one side of the upper frame; and a first belt bracket which is coupled to a section at which the upper frame and the first side frame are connected, and which guides a seat belt. The first belt bracket comprises: a front bracket disposed in front of the section at which the upper frame and the first side frame are connected; and a rear bracket which is manufactured so as to be separable from the front bracket, is coupled to the front bracket, and is disposed behind the section at which the upper frame and the first side frame are connected.
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公开(公告)号:US12272474B2
公开(公告)日:2025-04-08
申请号:US18268784
申请日:2021-12-16
Applicant: POSCO Co., Ltd
Inventor: Jaewan Hong , Hyungdon Joo , Junesoo Park
IPC: H01F1/147 , C21D6/00 , C21D8/12 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14
Abstract: A non-oriented electrical steel sheet according to an exemplary embodiment of the present invention contains, by wt %, 0.005% or less (excluding 0%) of C, 1.2 to 2.7% of Si, 0.4 to 2.0% of Mn, 0.005% or less (excluding 0%) of S, 0.3% or less (excluding 0%) of Al, 0.005% or less (excluding 0%) of N, 0.005% or less (excluding 0%) of Ti, and a balance of Fe and inevitable impurities, wherein the non-oriented electrical steel sheet satisfies the following Expression 1, and a volume fraction of grains having an angle of 15° or less between a {112} plane and a rolling plane in the steel sheet is 40 to 60%. 0.3 ≤ ( [ Si ] + [ Al ] - 1 . 5 ) / [ Mn ] ≤ 0 . 8 5 [ Expression 1 ] (In Expression 1, [Si], [Al], and [Mn] represent contents (wt %) of Si, Al, and Mn, respectively.)
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公开(公告)号:US20250060054A1
公开(公告)日:2025-02-20
申请号:US18722239
申请日:2022-12-20
Applicant: POSCO Co., Ltd
Inventor: Sang-Chul LEE
IPC: F16L9/02 , B23K31/02 , B23K101/04 , C22C38/02 , C22C38/38
Abstract: According to aspects of the present invention, provided are a welded steel tube and a manufacturing method for the same which can provide excellent wear resistance and also minimize hot cracking of the welded portion, so a lifespan thereof may be effectively maximized even when applied in harsh wear-resistant environments.
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公开(公告)号:US20250059618A1
公开(公告)日:2025-02-20
申请号:US18722256
申请日:2022-12-21
Applicant: POSCO CO., LTD
Inventor: Soobin Kwon
IPC: C21D9/46 , C21D1/30 , C21D1/74 , C21D6/00 , C21D8/12 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/38 , C22C38/60 , H01F1/147 , H02K1/02 , H02K15/02
Abstract: A non-oriented electrical steel sheet according to an embodiment of the present invention includes: a steel sheet base material containing, by wt %: 2.0 to 6.5% of Si, 0.1 to 1.3% of Al, 0.3 to 2.0% of Mn, 0.005 to 0.06% of Cr, and a balance of Fe and other inevitable impurities; and an insulating coating film positioned on the steel sheet base material, wherein Formula 1 below is satisfied before stress relief annealing, and Formula 2 below is satisfied after the stress relief annealing. 0.1 ≥ [ Mn coating film ] / [ Mn 50 ] [ Formula 1 ] 10 ≥ [ Mn coating film ] / [ Mn 50 ] ≥ 1 [ Formula 2 ] (in Formulas 1 and 2, [Mn coating film] refers to an average content of Mn (wt %) in the insulating coating film, and [Mn 50] refers to a content of Mn (wt %) at a depth of 50 μm from an interface between the steel sheet base material and the insulating coating film toward an inside of the steel sheet base material.)
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公开(公告)号:US20250051929A1
公开(公告)日:2025-02-13
申请号:US18721631
申请日:2022-12-19
Applicant: POSCO CO., LTD
Inventor: Chang-Hoon Choi , Soo-Hyoun Cho , Tae-Chul Kim , Sung-Joo Kim
Abstract: The present invention relates to a solution composition capable of improving pitting corrosion resistance and blackening resistance of a steel sheet, a steel sheet surface-treated using same, and a method for manufacturing the steel sheet.
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公开(公告)号:US20250051889A1
公开(公告)日:2025-02-13
申请号:US18719489
申请日:2022-12-14
Applicant: POSCO CO., LTD
Inventor: Jae-Hoon LEE , Seong-Ho HAN , Yong-Hoon CHOI
Abstract: The present invention relates to a high-strength steel sheet having excellent formability and a high yield ratio, and a manufacturing method therefor, and more particularly, to a high-strength steel sheet having excellent formability and a high yield ratio, and a manufacturing method therefor, the steel sheet having various uses such as that of vehicle parts.
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公开(公告)号:US20250051622A1
公开(公告)日:2025-02-13
申请号:US18719879
申请日:2022-12-16
Applicant: POSCO CO., LTD
Inventor: Bongwoo HA , Jungwoo KIM , Taeyoung NO , Donggyu LEE
IPC: C09J175/08 , B32B7/12 , B32B15/01 , C08K3/30 , C09D175/08
Abstract: The present disclosure provides an electrical steel sheet adhesive coating composition containing a polyurethane resin and an inorganic pigment, wherein the inorganic pigment is contained in an amount of 20 to 150 parts by weight with respect to 100 parts by weight of the polyurethane resin, and the polyurethane resin is formed by reacting an aromatic diisocyanate monomer and a polyol, an electrical steel sheet laminate using the same, and a method for manufacturing the same.
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公开(公告)号:US20250050307A1
公开(公告)日:2025-02-13
申请号:US18720316
申请日:2022-12-15
Inventor: Gi-Chun HAN , Sang Won KIM , Seung Goo KIM , Seung Seok LEE , Young-Seon KO , Young Geun SON , Kee Uek JEUNG
IPC: B01J20/16 , B01J20/28 , B01J20/30 , C02F1/28 , C02F103/08
Abstract: The present exemplary embodiments relate to a sodium ion adsorbent, a method of manufacturing the same, and a method for removing sodium ions.
According to an exemplary embodiment, a sodium ion adsorbent for removing sodium ions may include a compound represented by Chemical Formula 1 below. [Chemical Formula 1] HxM1-xAlSi2O6, in Chemical Formula 1, M is one or more elements selected from Na, K, Cs, and Rb, and 0-
公开(公告)号:US12221700B2
公开(公告)日:2025-02-11
申请号:US18266269
申请日:2021-12-15
Applicant: POSCO CO., LTD
Inventor: Suk-Kyu Lee , Jong-Gi Oh , Myung-Soo Kim
IPC: C23C2/02 , C21D8/02 , C21D9/46 , C22C21/10 , C22C38/04 , C22C38/06 , C23C2/00 , C23C2/12 , C23C2/40
Abstract: Provided is an aluminum coated steel sheet having excellent anti-corrosion properties and weldability, and a manufacturing method thereof. The aluminum coated steel sheet includes: an austenitic base steel sheet including at least 70 area % of an austenite microstructure; and an aluminum coating layer formed on the base steel sheet, wherein the base steel sheet includes at least 80 area % of ferrite in a surface layer portion, which denotes a region extending from the interface with the coating layer to a depth of 100 μm into the base steel sheet, and the aluminum coating layer may have a composition comprising 2-12 wt % of Si, 5-30 wt % of Zn, and 0.1-5 wt % of Mn, with the balance being Al and inevitable impurities.
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公开(公告)号:US20250043404A1
公开(公告)日:2025-02-06
申请号:US18716476
申请日:2022-12-16
Applicant: POSCO CO., LTD
Inventor: Jaiik Kim
Abstract: A cold rolled steel sheet according to an exemplary embodiment of the present invention comprises, by wt %: C: 0.01 to 0.10%; Mn: 0.1 to 0.4%; Al: 0.01 to 0.10%; P: 0.003 to 0.020%; N: 0.001 to 0.006%; S: 0.015% or less; Cr: 0.1 to 0.4%; B: 0.0005 to 0.0035%; Ni: 0.04 to 0.10%; and the balance Fe and other unavoidable impurities, and comprises a (Cr—B)(C—N)-based composite precipitate having a size of 0.01 to 0.1 μm, wherein a [I 222+I 554]/I 200 texture ratio is 5.0 to 10.0, an earing rate is less than 3.0%, and an alloying rate of an alloy layer may be 5 to 15%.
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