Invention Grant
- Patent Title: Hot-dip galvanized steel sheet having excellent low-temperature adhesion and workability
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Application No.: US16957222Application Date: 2018-12-20
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Publication No.: US11338551B2Publication Date: 2022-05-24
- Inventor: Hyeon-Seok Hwang , Sang-Heon Kim
- Applicant: POSCO
- Applicant Address: KR Pohang-si
- Assignee: POSCO
- Current Assignee: POSCO
- Current Assignee Address: KR Pohang-si
- Agency: Cantor Colburn LLP
- Priority: KR10-2017-0178952 20171224
- International Application: PCT/KR2018/016378 WO 20181220
- International Announcement: WO2019/125020 WO 20190627
- Main IPC: B32B15/01
- IPC: B32B15/01 ; C22C18/00 ; C23C2/06 ; C23C2/26 ; C23C2/40 ; C22C18/04 ; C23C28/02 ; C23C30/00 ; B32B15/04 ; C23C2/04 ; B32B15/18 ; C23C2/28 ; C23C2/02

Abstract:
Provided is a hot-dip galvanized steel sheet having excellent low-temperature adhesion and workability, and a manufacturing method therefor, the hot-dip galvanized steel sheet comprising: an inhibition layer formed on a base steel sheet and comprising an Fe—Al-based intermetallic alloy phase; a hot-dip galvanized layer formed on the inhibition layer; and an Al—Mn-based alloy phase discontinuously formed between the inhibition layer and the hot-dip galvanized layer.
Information query