- 专利标题: Hot-dip galvanized steel plate with excellent bake hardenability and anti-aging property at room temperature
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申请号: US16466714申请日: 2017-11-08
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公开(公告)号: US10982298B2公开(公告)日: 2021-04-20
- 发明人: Sang-Ho Han , Je-Woong Lee
- 申请人: POSCO
- 申请人地址: KR Pohang-si
- 专利权人: POSCO
- 当前专利权人: POSCO
- 当前专利权人地址: KR Pohang-si
- 代理机构: Cantor Colburn LLP
- 优先权: KR10-2016-0165916 20161207
- 国际申请: PCT/KR2017/012590 WO 20171108
- 国际公布: WO2018/105904 WO 20180614
- 主分类号: C22C38/38
- IPC分类号: C22C38/38 ; C22C38/22 ; C22C38/32 ; C22C38/02 ; C22C38/06 ; C22C38/00 ; C23C2/02 ; C23C2/06 ; C23C2/28 ; C23C2/40 ; C21D6/00 ; C21D9/46 ; C21D8/02 ; B32B15/01 ; C21D8/04 ; C23C2/26 ; C21D9/48 ; C22C38/12 ; C22C38/04 ; C23C2/04 ; C23C28/00 ; C22C38/18 ; C23C2/12 ; B32B15/18 ; B32B15/04 ; C23C30/00 ; C23C28/02
摘要:
Provided is a hot-dip galvanized steel plate which is applicable as a material for a vehicle outer panel and has an excellent bake hardenability and anti-aging property at room temperature, and a method for manufacturing a hot-dip galvanized steel plate, the method comprising a process including the steps of: winding a hot-rolled steel plate, followed by cooling at a speed of 0.002-0.027° C./sec; cold-rolling the cooled steel plate; continuously annealing the cold-rolled steel plate; and cooling the annealed steel plate in the multi-stage manner of primary to third rounds.
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