Invention Grant
- Patent Title: Mold powder for continuous casting of A1-containing sub-peritectic steel and continuous casting method
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Application No.: US17616525Application Date: 2020-06-03
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Publication No.: US11945028B2Publication Date: 2024-04-02
- Inventor: Kenji Tsuzumi , Hideya Masaki
- Applicant: JFE STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: JFE STEEL CORPORATION
- Current Assignee: JFE STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP 19104488 2019.06.04
- International Application: PCT/JP2020/021918 2020.06.03
- International Announcement: WO2020/246498A 2020.12.10
- Date entered country: 2021-12-03
- Main IPC: B22D11/108
- IPC: B22D11/108 ; B22D11/111 ; B22D11/16 ; C04B35/14 ; C22C38/00 ; C22C38/02 ; C22C38/06 ; C22C38/22 ; C22C38/38
Abstract:
A mold powder which prevents surface defects from occurring on a surface of a cast slab of Al-containing hypo-peritectic steel having Al: 0.2% to 2.0%, by mass %, and, in a hypo-peritectic region, C: 0.08% to 0.17%, by mass %. The mold powder includes CaO, SiO2, Na2O, Li2O, F, and C. Li2O/Na2O is 0.6 or more, 1.0+0.05×Al≤CaO/SiO2≤2.0−0.35×Al, 10
Public/Granted literature
- US20220226886A1 MOLD POWDER FOR CONTINUOUS CASTING OF Al-CONTAINING SUB-PERITECTIC STEEL AND CONTINUOUS CASTING METHOD Public/Granted day:2022-07-21
Information query
