专利检索 ap:("POSCO CO., LTD") AND inv:"Seong-Woo Kim" 第 2 页

11.

发明授权
Plated steel sheets for hot press forming having excellent hydrogen brittleness resistance and impact resistance, hot press formed parts, and manufacturing methods thereof 有权

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.

12.

发明公开
HOT PRESS-FORMED PART, AND MANUFACTURING METHOD THEREOF 审中-公开

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.

13.

发明授权
Manufacturing method of aluminum-based alloy plated steel 有权

公开(公告)号：US11904572B2

公开(公告)日：2024-02-20

申请号：US18121249

申请日：2023-03-14

申请人： POSCO CO., LTD

发明人： Jin-Keun Oh , Il-Ryoung Sohn , Seong-Woo Kim , Jeom-Soo Shin

IPC分类号： B32B15/01 , C22C21/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/28 , C22C38/32 , C23C2/12 , C23C2/28 , C23C2/40 , C23C2/26

CPC分类号： B32B15/012 , C22C21/02 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/28 , C22C38/32 , C23C2/12 , C23C2/26 , C23C2/28 , C23C2/29 , C23C2/40 , Y10T428/12757

摘要： The present disclosure relates to an aluminum-based plated steel that is provided for vehicles by hot forming, an aluminum-based alloy plated steel manufactured using the same, and method of manufacturing thereof.