- 专利标题: Production method for plated steel sheet using a steel sheet annealing device
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申请号: US14971258申请日: 2015-12-16
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公开(公告)号: US10053749B2公开(公告)日: 2018-08-21
- 发明人: Rho-Bum Park , Kwang-Geun Chin , Man-Young Park
- 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: The Webb Law Firm
- 优先权: KR10-2008-0134884 20081226
- 主分类号: C21D8/02
- IPC分类号: C21D8/02 ; C23C12/02 ; C21D9/46 ; C21D1/26 ; C21D9/00 ; C21D9/54 ; C23C2/02 ; C23C2/26 ; C23C2/28 ; C23C26/00 ; C21D1/34 ; C21D1/42 ; C21D1/613 ; C21D1/84 ; C21D6/00 ; C22C38/02 ; C22C38/04 ; C22C38/60 ; C23C2/06 ; C23C2/12 ; C21D1/00
摘要:
Provided is a method for producing plated steel sheet by means of an annealing device which includes at least one section and in which the at least one section is filled with a gas constituting a non-reducing atmosphere or a weakly reducing atmosphere to substantially improve the quality of plating onto hot-dipped steel sheet, including the plating properties, alloying properties, anti-pickup properties, plating adhesion properties, anti-flaking properties, anti-cratering properties and anti-ash properties, by using prior-art annealing equipment and heat-treatment cycle without any additional oxidation-reduction heat treatment process or large quantities of high-cost alloying elements.
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