公开(公告)号：US20240344164A1

公开(公告)日：2024-10-17

申请号：US18646241

申请日：2024-04-25

申请人： POSCO CO., LTD

发明人： Ki-Cheol Kang ,  Chung-Hwan Lee ,  Yong-Joo Kim ,  Kang-Min Lee ,  Kyoo-Young Lee

IPC分类号： C21D9/46 ,  B32B15/01 ,  B32B15/04 ,  B32B15/18 ,  C21D1/19 ,  C21D1/25 ,  C21D1/76 ,  C21D1/84 ,  C21D3/04 ,  C21D6/00 ,  C21D8/02 ,  C21D9/56 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/18 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/34 ,  C22C38/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40 ,  C23C28/00 ,  C23C28/02 ,  C23C30/00

CPC分类号： C21D9/46 ,  B32B15/01 ,  B32B15/013 ,  B32B15/04 ,  B32B15/043 ,  B32B15/18 ,  C21D1/19 ,  C21D1/25 ,  C21D1/76 ,  C21D1/84 ,  C21D3/04 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0257 ,  C21D8/0263 ,  C21D8/0273 ,  C21D8/0278 ,  C21D9/562 ,  C22C38/001 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/18 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/34 ,  C22C38/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58 ,  C23C2/02 ,  C23C2/022 ,  C23C2/0224 ,  C23C2/024 ,  C23C2/06 ,  C23C2/28 ,  C23C2/29 ,  C23C2/40 ,  C23C28/025 ,  C23C28/3225 ,  C23C28/345 ,  C23C30/00 ,  C23C30/005 ,  B32B2307/732 ,  Y10T428/12583 ,  Y10T428/1259 ,  Y10T428/12597 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/1266 ,  Y10T428/12667 ,  Y10T428/12799 ,  Y10T428/12958 ,  Y10T428/12965 ,  Y10T428/12972 ,  Y10T428/12993 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/24983 ,  Y10T428/26 ,  Y10T428/27 ,  Y10T428/273

摘要： The present disclosure relates to a high-strength hot-dip galvanized steel sheet having excellent surface quality and electrical resistance spot weldability, and a method for manufacturing the same. A galvanized steel sheet according to an aspect of the present disclosure is a galvanized steel sheet including a base steel sheet and a zinc-based plating layer formed on a surface of the base steel sheet, wherein a ratio (a/b) of a hardness of a surface layer portion (a) to a hardness of an internal portion (b) of the base steel sheet may be less than 0.95.

公开(公告)号：US20240301526A1

公开(公告)日：2024-09-12

申请号：US18664762

申请日：2024-05-15

申请人： POSCO CO., LTD

发明人： Seong-Woo Kim ,  Jin-Keun Oh ,  Yeol-Rae Cho

IPC分类号： C21D9/46 ,  B32B15/01 ,  C21D6/00 ,  C21D8/02 ,  C22C21/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/02 ,  C23C2/12 ,  C23C2/28 ,  C23C2/40

CPC分类号： C21D9/46 ,  B32B15/012 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0226 ,  C22C21/02 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/02 ,  C23C2/0224 ,  C23C2/024 ,  C23C2/12 ,  C23C2/28 ,  C23C2/29 ,  C23C2/40 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2211/008 ,  C21D2211/009 ,  Y10T428/12757

摘要： One aspect of the present invention relates to a plated steel sheet for hot press forming, having an excellent impact property.

公开(公告)号：US12084734B2

公开(公告)日：2024-09-10

申请号：US18034265

申请日：2021-12-03

申请人： POSCO Co., Ltd

发明人： Jin-Keun Oh ,  Seong-Woo Kim ,  Sang-Heon Kim ,  Hyo-Sik Chun

IPC分类号： C23C2/02 ,  C21D6/00 ,  C21D8/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/48 ,  C22C38/54 ,  C22C38/58 ,  C23C2/12 ,  C23C2/40

CPC分类号： C21D8/0263 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0278 ,  C21D9/46 ,  C22C38/001 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/48 ,  C22C38/54 ,  C22C38/58 ,  C23C2/02 ,  C23C2/022 ,  C23C2/024 ,  C23C2/12 ,  C23C2/40

摘要： Provided are plated steel sheets for hot press forming, hot press formed parts, and manufacturing methods thereof, the plated steel sheets comprising: a base steel sheet comprising, in weight %, C: 0.07 to 0.5%, Si: 0.05 to 1%, Mn: 0.5 to 5%, P: 0.001 to 0.015%, S: 0.0001 to 0.02%, Al: 0.01 to 0.1%, Cr: 0.01 to 1%, N: 0.001 to 0.02%, Ti: 0.1% or less, B: 0.01% or less, Sn: 0.01 to 0.1%, and a balance of Fe and inevitable impurities; an aluminum or aluminum alloy plating layer disposed on at least one surface of the base steel sheet; and an Sn-enriched layer provided between the base steel sheet and the plating layer, wherein the Sn-enriched layer satisfies a specific relationship.

公开(公告)号：US20240296731A1

公开(公告)日：2024-09-05

申请号：US18268171

申请日：2021-09-01

申请人： POSCO Co., Ltd.

发明人： Cheol-hee Choi ,  Kisoo Kim ,  Dukman Lee

IPC分类号： G08B21/14 ,  G01N1/22 ,  G08B5/22 ,  G08B7/06

CPC分类号： G08B21/14 ,  G01N1/2205 ,  G01N1/2273 ,  G08B5/223 ,  G08B7/06 ,  G01N2001/2276

摘要： A gas detection device is disclosed. A gas detection device according to an embodiment of the present invention includes a case in which a plurality of grooves are formed in a circumferential surface, an inlet which is coupled to a first groove among the grooves and through which air is introduced into the case, a power button which is coupled to a second groove among the grooves and turns a power source on or off, a gas detector which is provided in the case and detects a gas contained in the introduced air, a light unit which is coupled to a third groove among the grooves and informs a state in which the power source is turned on or off and whether the gas is detected, a battery which supplies power, a beep generator which generates a beep when a gas detection signal is received from the gas detector, and a power switch operated by the power button to turn on or off so as to supply the power from the battery, wherein one or more of the inlet, the power button, and the light unit are coupled to the grooves in a recessed form, the battery, the beep generator, and the power switch are provided inside the case, and the case is formed in a small spherical shape which is carried in a palm of an operator and moved by the operator.

公开(公告)号：US20240295002A1

公开(公告)日：2024-09-05

申请号：US18661194

申请日：2024-05-10

申请人： POSCO CO., LTD

发明人： Ki-Cheol Kang ,  Chung-Hwan Lee

IPC分类号： C21D9/46 ,  B32B15/01 ,  C21D6/00 ,  C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40

CPC分类号： C21D9/46 ,  B32B15/013 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0273 ,  C22C38/001 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/02 ,  C23C2/022 ,  C23C2/024 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40 ,  B32B2307/718

摘要： The present disclosure relates to a zinc plated steel sheet having excellent fatigue strength of electrical resistance spot welds and a method for manufacturing the same. According to an aspect of the present disclosure, a zinc plated steel sheet includes a base steel sheet and a zinc-based plating layer formed on a surface of the base steel sheet, wherein a concentration profile of one or two of oxygen, and silicon and manganese measured in a depth direction from the surface of the base steel sheet has a maximum point in the depth direction from the surface, and an absolute value of a difference between a depth at which the maximum point of the concentration profile of oxygen is formed and a depth at which the maximum point of the concentration profile of one of silicon and manganese is formed is 0.5 μm or less.

公开(公告)号：US20240294999A1

公开(公告)日：2024-09-05

申请号：US18268782

申请日：2021-12-21

申请人： POSCO Co., Ltd ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY

发明人： Hye Jeong Kim ,  Kyung Hwang Lee ,  Taek Geun Lee

IPC分类号： C21D1/74 ,  C22C18/04

CPC分类号： C21D1/74 ,  C22C18/04

摘要： The present disclosure is that plating steel with spangles can be subjected to constant humidity heat treatment. Due to this, the degree of blackening is different depending on the spangle pattern, and then a black plated steel sheet having a marble texture and a beautiful pattern can be obtained when the blackening is completed.

公开(公告)号：US20240281983A1

公开(公告)日：2024-08-22

申请号：US18292723

申请日：2022-11-23

申请人： POSCO CO., LTD. ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY ,  POSTECH Research and Business Development Foundation

发明人： Tae Hyun OH ,  Hyunwoo HA ,  Sang Hyeok PARK ,  Laekyoung LEE ,  Jun Young SEO

IPC分类号： G06T7/246 ,  G06T3/4007 ,  G06T3/60 ,  G06T7/13 ,  G06V10/25 ,  G06V10/44

CPC分类号： G06T7/246 ,  G06T3/4007 ,  G06T3/60 ,  G06T7/13 ,  G06V10/25 ,  G06V10/44

摘要： A method of analyzing a motion on the basis of feature tracking is disclosed. The method includes the steps of: capturing image frames; filtering a region of interest (ROI) for the captured image frames; tracking a feature in the captured image frames; removing an extreme value on the basis of an optimum model; and outputting an analysis result.
Further disclosed is a system of analyzing a motion on the basis of feature tracking, the system comprising a controller configured to perform each step of the method.

公开(公告)号：US20240261843A1

公开(公告)日：2024-08-08

申请号：US18636787

申请日：2024-04-16

申请人： POSCO CO., LTD

发明人： Seong-Woo Kim ,  Jin-Keun Oh ,  Sang-Heon Kim ,  Hyo-Sik Chun

IPC分类号： B21D35/00 ,  B32B15/01 ,  C21D6/00 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40

CPC分类号： B21D35/007 ,  B32B15/012 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D9/46 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/29 ,  C23C2/40

摘要： The present disclosure provides a hot-press formed part comprising a plated steel sheet and an aluminum alloy plated layer formed on the plated steel sheet, wherein the aluminum alloy plated layer comprises: an alloying layer (I) formed on the plated steel sheet and containing, by weight %, 5-30% of Al; an alloying layer (II) formed on the alloying layer (I) and containing, by weight %, 30 to 60% of Al; an alloying layer (III) formed on the alloying layer (II) and containing, by weight %, 20-50% of Al and 5-20% of Si; and an alloying layer (IV) formed continuously or discontinuously on at least a part of the surface of the alloying layer (III), and containing 30-60% of Al, wherein the rate of the alloying layer (III) exposed on the outermost surface of the aluminum alloy plated layer is 10% or more.

公开(公告)号：US20240242863A1

公开(公告)日：2024-07-18

申请号：US18288286

申请日：2022-12-20

申请人： POSCO Co., Ltd

发明人： Hyung Don Joo ,  Jaewan Hong ,  Yong-Soo Kim ,  Junesoo Park ,  Yunsu Kim

IPC分类号： H01F1/147 ,  C21D8/12 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/16 ,  C22C38/60

CPC分类号： H01F1/14783 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1277 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/16 ,  C22C38/60 ,  C22C2202/02

摘要： 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, 1.5 to 3.0% of Si, 0.4 to 1.5% of Mn, 0.005% or less (excluding 0%) of S, 0.0001 to 0.7% of Al, 0.005% or less (excluding 0%) of N, 0.005% or less (excluding 0%) of Ti, 0.001 to 0.02% of Cu, 0.01 to 0.05% of Sb, 0.001 to 0.1% of Sn, and 0.005 to 0.07% of P, wherein contents of Mn, Si, and Al satisfy the following [Expression 1], contents of Sb, Sn, and P satisfy the following [Expression 2], the non-oriented electrical steel sheet contains a balance of Fe and unavoidably incorporated impurities, and the number of (Mn, Cu)S precipitates of 0.5 μm or less per area is 1/μm3 or less:







0.19
≤


[
Mn
]

/

(


[
Si
]

+

150
×

[
Al
]



)


≤
0.35




[

Expression
⁢

1

]













1
/

2
*

⁢
Sn

公开(公告)号：US20240186041A1

公开(公告)日：2024-06-06

申请号：US18285178

申请日：2022-12-20

申请人： POSCO Co., Ltd

发明人： Ohyeoul Kwon ,  Woosin Kim ,  Kyuseok Han

IPC分类号： H01F1/18 ,  C21D1/74 ,  C21D6/00 ,  C21D8/12 ,  C21D9/46 ,  C21D10/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/34 ,  C22C38/60

CPC分类号： H01F1/18 ,  C21D1/74 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1255 ,  C21D8/1261 ,  C21D8/1272 ,  C21D8/1283 ,  C21D9/46 ,  C21D10/005 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/34 ,  C22C38/60 ,  C21D2201/05 ,  C22C2202/02

摘要： According to an exemplary embodiment of the present invention, a grain oriented electrical sheet includes: a plurality of deformed parts formed on a surface of the electrical sheet along a rolling direction, in which an interval between the deformed parts is changed over an entire length of the sheet in response to an index Ks of sensitivity calculated by Equation 1 below, and at least two areas having a different interval between the deformed parts exist.


Ks=(0.7×Ds+0.3×B8)/10  [Equation 1]

(in Equation 1, Ks denotes an index of sensitivity, Ds denotes a particle size of grain (mm), and B8 denotes a magnetic flux density T measured at magnetic field strength of 800 A/m.)