公开(公告)号：US10544497B2

公开(公告)日：2020-01-28

申请号：US15539622

申请日：2015-12-24

申请人： POSCO

发明人： Min-Suk Oh ,  Sang-Heon Kim ,  Tae-Chul Kim ,  Jong-Sang Kim ,  Bong-Hwan Yoo ,  Hyun-Chu Yun

IPC分类号： C22C18/00 ,  C23C2/06 ,  C23C2/16 ,  C23C2/40 ,  C23C2/02 ,  C22C18/04

摘要： A Zn alloy plated steel sheet having excellent phosphatability and spot weldability and a method for manufacturing the same are provided. In the Zn alloy plated steel sheet including a base steel sheet and a Zn alloy plating layer, the Zn alloy plating layer includes, by wt %, Al: 0.5-2.8%, Mg: 0.5-2.8%, and a remainder of Zn and inevitable impurities, and a cross-sectional structure of the Zn alloy plating layer includes, by area percentage, more than 50% of a Zn single phase structure and less than 50% of a Zn—Al—Mg-based intermetallic compound. A surface structure of the Zn alloy plating layer includes, by area percentage, 40% or less of a Zn single phase structure and 60% or more of a Zn—Al—Mg-based intermetallic compound.

公开(公告)号：US11248287B2

公开(公告)日：2022-02-15

申请号：US16773101

申请日：2020-01-27

申请人： POSCO

发明人： Min-Suk Oh ,  Sang-Heon Kim ,  Tae-Chul Kim ,  Jong-Sang Kim ,  Hyun-Chu Yun ,  Bong-Hwan Yoo ,  Il-Ryoung Sohn

IPC分类号： B32B15/01 ,  B32B15/04 ,  B32B15/18 ,  C22C38/04 ,  C22C38/02 ,  C22C38/06 ,  C22C18/04 ,  C23C30/00 ,  C23C28/02 ,  C23C2/06 ,  C23C2/40 ,  C23C2/16 ,  C23C2/28 ,  C23C2/02 ,  C22C18/00 ,  C23C2/26 ,  C22C38/08

摘要： Zn alloy plated steel material having excellent weldability and processed-part corrosion resistance and a method for production of Zn alloy plated steel material are provided. In the Zn alloy plated steel material comprising base steel material and a Zn alloy plating layer, the Zn alloy plating layer includes, by wt %, Al: 0.1-5.0%, Mg: 0.1-5.0%, as well as a remainder of Zn and inevitable impurities. The Zn alloy plated steel material includes a lower interface layer and an upper interface layer between the base steel material and the Zn alloy plating layer, wherein the lower interface layer is formed on the base steel material and has a dense structure, and the upper interface layer is formed on the lower interface layer and has a network-type or island-type structure.

公开(公告)号：US09783686B2

公开(公告)日：2017-10-10

申请号：US14655668

申请日：2013-12-24

申请人： POSCO

发明人： Joong-Kyu Kim ,  Hyun-Chu Yun ,  Hye-Jin Yoo ,  Jong-Sang Kim ,  Yong-Gyun Jung

IPC分类号： B32B15/08 ,  B32B15/18 ,  B05D3/14 ,  C09D5/08 ,  C09D175/04 ,  B05D3/00 ,  C09D7/12 ,  C08K3/04 ,  B32B27/20 ,  B32B27/30 ,  B32B27/36 ,  B32B27/38 ,  B32B27/40

CPC分类号： C09D5/08 ,  B05D3/207 ,  B32B15/08 ,  B32B15/18 ,  B32B27/20 ,  B32B27/308 ,  B32B27/36 ,  B32B27/38 ,  B32B27/40 ,  B32B2264/108 ,  B32B2307/302 ,  B32B2307/714 ,  C08G2150/90 ,  C08K3/04 ,  C08K3/042 ,  C09D5/084 ,  C09D7/70 ,  C09D175/04 ,  Y10T428/265 ,  Y10T428/31529 ,  Y10T428/31605 ,  Y10T428/31678 ,  Y10T428/31681 ,  Y10T428/31692

摘要： The present invention relates to a surface-treated steel plate and to a production method for same, and more specifically relates to a surface-treated steel plate having outstanding corrosion resistance and thermal conductivity. In order to achieve this aim, in the present invention a macromolecular resin composition comprising graphene, which has highly outstanding physical properties including electrical conductivity, is coated onto the surface of a steel foundation plate, thereby making it possible to provide a surface-treated steel plate able to supremely well ensure not only corrosion resistance but also the intrinsic characteristics of graphene due to the macromolecular resin composition.

公开(公告)号：US10584407B2

公开(公告)日：2020-03-10

申请号：US15539654

申请日：2015-12-24

申请人： POSCO

发明人： Min-Suk Oh ,  Sang-Heon Kim ,  Tae-Chul Kim ,  Jong-Sang Kim ,  Hyun-Chu Yun ,  Bong-Hwan Yoo ,  Il-Ryoung Sohn

IPC分类号： C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C28/02 ,  C22C38/06 ,  C22C18/04 ,  C22C38/02 ,  C23C30/00 ,  C22C38/04 ,  B32B15/01 ,  B32B15/18 ,  B32B15/04

摘要： Zn alloy plated steel material having excellent weldability and processed-part corrosion resistance and a method for production of Zn alloy plated steel material are provided. In the Zn alloy plated steel material comprising base steel material and a Zn alloy plating layer, the Zn alloy plating layer includes, by wt %, Al: 0.1-5.0%, Mg: 0.1-5.0%, as well as a remainder of Zn and inevitable impurities. The Zn alloy plated steel material includes a lower interface layer and an upper interface layer between the base steel material and the Zn alloy plating layer, wherein the lower interface layer is formed on the base steel material and has a dense structure, and the upper interface layer is formed on the lower interface layer and has a network-type or island-type structure.

公开(公告)号：US10550457B2

公开(公告)日：2020-02-04

申请号：US15539654

申请日：2015-12-24

申请人： POSCO

发明人： Min-Suk Oh ,  Sang-Heon Kim ,  Tae-Chul Kim ,  Jong-Sang Kim ,  Hyun-Chu Yun ,  Bong-Hwan Yoo ,  Il-Ryoung Sohn

IPC分类号： C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C28/02 ,  C22C38/06 ,  C22C18/04 ,  C22C38/02 ,  C23C30/00 ,  C22C38/04 ,  B32B15/01 ,  B32B15/18 ,  B32B15/04

摘要： Zn alloy plated steel material having excellent weldability and processed-part corrosion resistance and a method for production of Zn alloy plated steel material are provided. In the Zn alloy plated steel material comprising base steel material and a Zn alloy plating layer, the Zn alloy plating layer includes, by wt %, Al: 0.1-5.0%, Mg: 0.1-5.0%, as well as a remainder of Zn and inevitable impurities. The Zn alloy plated steel material includes a lower interface layer and an upper interface layer between the base steel material and the Zn alloy plating layer, wherein the lower interface layer is formed on the base steel material and has a dense structure, and the upper interface layer is formed on the lower interface layer and has a network-type or island-type structure.