公开(公告)号：US11905587B2

公开(公告)日：2024-02-20

申请号：US17414283

申请日：2019-12-18

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

发明人： Ji Hoon Yang ,  Jae In Jeong ,  Kyung Hwang Lee ,  Yong Hwa Jung ,  Tae Yeob Kim

IPC分类号： C23C14/16 ,  C23C14/58 ,  C23C2/12 ,  C23C2/28 ,  C23C28/02 ,  C21D9/46 ,  B32B15/01 ,  C23C14/56 ,  C23C2/26 ,  C22C30/06 ,  C22C21/06 ,  B32B15/18 ,  C22C18/00 ,  C23C2/06 ,  C23C30/00 ,  B32B15/04 ,  C23C14/14 ,  C22C21/10 ,  C22C21/00 ,  C23C14/06 ,  C22C18/04

CPC分类号： C23C14/165 ,  B32B15/01 ,  B32B15/012 ,  B32B15/013 ,  B32B15/04 ,  B32B15/043 ,  B32B15/18 ,  C21D9/46 ,  C22C18/00 ,  C22C18/04 ,  C22C21/00 ,  C22C21/06 ,  C22C21/10 ,  C22C30/06 ,  C23C2/06 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C14/06 ,  C23C14/14 ,  C23C14/16 ,  C23C14/562 ,  C23C14/5806 ,  C23C28/02 ,  C23C28/021 ,  C23C28/023 ,  C23C28/025 ,  C23C30/00 ,  C23C30/005 ,  Y10T428/12736 ,  Y10T428/12743 ,  Y10T428/12757 ,  Y10T428/12799 ,  Y10T428/12951 ,  Y10T428/12958 ,  Y10T428/12972

摘要： The present invention relates to an alloy-coated steel sheet comprising: a steel sheet, and Al—Mg—Si—Zn alloy layer positioned on the steel sheet, wherein the Al—Mg—Si—Zn alloy layer comprises a Mg—Zn alloy phase, and wherein the Mg—Zn alloy phase comprises MgZn2 and Mg2Zn11, and the Mg—Zn alloy phase further comprises at least one of MgZn, Mg21Zn25, Mg51Zn20 and Mg2Zn3.

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：US11555240B2

公开(公告)日：2023-01-17

申请号：US17128465

申请日：2020-12-21

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

发明人： Kyung Hwang Lee ,  Jae In Jeong ,  Hye Jeong Kim ,  Ji Hoon Yang

IPC分类号： C22C21/02 ,  C23C14/58 ,  C23C14/16 ,  C23C14/24

摘要： A black plated steel sheet includes a steel sheet and an Al—Mg—Si-based plating layer disposed on one surface or both surfaces of the steel sheet; in which the plating layer includes a black layer on the outermost surface thereof, and the black layer has a weight ratio of O to (Al+Mg+Si+O) of 0.01 to 0.6.

公开(公告)号：US20220074041A1

公开(公告)日：2022-03-10

申请号：US17414283

申请日：2019-12-18

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

发明人： Ji Hoon Yang ,  Jae In Jeong ,  Kyung Hwang Lee ,  Yong Hwa Jung ,  Tae Yeob Kim

IPC分类号： C23C14/16 ,  C23C14/58 ,  C23C2/12 ,  C23C2/28 ,  C23C28/02 ,  C21D9/46

摘要： The present invention relates to an alloy-coated steel sheet comprising: a steel sheet, and Al—Mg—Si—Zn alloy layer positioned on the steel sheet, wherein the Al—Mg—Si—Zn alloy layer comprises a Mg—Zn alloy phase, and wherein the Mg—Zn alloy phase comprises MgZn2 and Mg2Zn11, and the Mg—Zn alloy phase further comprises at least one of MgZn, Mg21Zn25, Mg51Zn20 and Mg2Zn3.

公开(公告)号：US11441219B2

公开(公告)日：2022-09-13

申请号：US16448017

申请日：2019-06-21

申请人： RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY

发明人： Hye Jeong Kim ,  Gab Sik Byun ,  Kyung Hwang Lee ,  Mi Seon Choi

IPC分类号： C23C8/10 ,  C23C8/12 ,  C22C18/04 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40 ,  C23C8/16

摘要： Embodiments of the present invention provide a technique for forming a film having a high added value appearance quality and excellent hardness on the surface of a steel sheet in a short time.