Invention Grant
- Patent Title: Method for producing hot dip plated steel sheet and apparatus for hot dip plating
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Application No.: US12998218Application Date: 2009-10-01
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Publication No.: US09598756B2Publication Date: 2017-03-21
- Inventor: Tooru Oohashi , Masato Kageyama , Satoshi Uchida , Katsuhiro Hamaguchi
- Applicant: Tooru Oohashi , Masato Kageyama , Satoshi Uchida , Katsuhiro Hamaguchi
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Current Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch, & Birch, LLP
- Priority: JP2008-256208 20081001
- International Application: PCT/JP2009/005089 WO 20091001
- International Announcement: WO2010/038472 WO 20100408
- Main IPC: B05D1/18
- IPC: B05D1/18 ; C23C2/18 ; C23C2/06 ; C23C2/12 ; C23C2/20

Abstract:
A method for producing a hot dip plated steel sheet, the method controlling a coating weight by injecting a gas toward a surface of a steel sheet from a time when the steel sheet continuously immersed into a plating bath is pulled up from the plating bath to a time when plating metal adhered onto the surface of the steel sheet is solidified, the method includes: setting an oxygen concentration of a bath surface of the plating bath to be more than or equal to 0.05 vol % and less than or equal to 21 vol % when the gas is injected toward the surface of the steel sheet; and setting an oxygen concentration in a space of an end of the steel sheet at a position where the gas collides with the steel sheet pulled up from the plating bath to be more than or equal to 0.05 vol % and less than or equal to 3 vol % when the gas is injected toward the surface of the steel sheet.
Public/Granted literature
- US20110177253A1 Method for producing hot dip plated steel sheet and apparatus for hot dip plating Public/Granted day:2011-07-21
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