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Title:
METHOD FOR MANUFACTURING STEEL PRODUCT WITH EXCELLENT HIC RESISTANCE CHARACTERISTICS
Document Type and Number:
Japanese Patent JP2015205338
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a steel product with excellent HIC resistance characteristics by precisely performing composition control of a CaO-AlO-based inclusion in a slab, and reducing the inclusion in the slab.SOLUTION: In a method for manufacturing a steel product with excellent HIC resistance characteristics, time X from termination of addition of CaO/AlOand Ca of an inclusion in molten steel to loading of the molten steel into tundish during manufacturing of Ca-added steel satisfies the following formula (1).

Inventors:
FURUMAI KOHEI
ARAMAKI NORICHIKA
MIKI YUJI
ISHIDA TOMOHARU
Application Number:
JP2014089157A
Publication Date:
November 19, 2015
Filing Date:
April 23, 2014
Export Citation:
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Assignee:
JFE STEEL CORP
International Classes:
B22D1/00; B22D11/00; B22D11/108; B22D11/11; B22D11/117; C21C7/00; C21C7/04
Domestic Patent References:
JPH08333619A1996-12-17
JPH0873923A1996-03-19
JP2000087127A2000-03-28
JPH07150217A1995-06-13
JP2014005534A2014-01-16
JP2002254148A2002-09-10
JPH08333619A1996-12-17
JPH0873923A1996-03-19
JP2000087127A2000-03-28
JPH07150217A1995-06-13
JP2014005534A2014-01-16
JP2002254148A2002-09-10
Foreign References:
US20040083851A12004-05-06
US20040083851A12004-05-06
Attorney, Agent or Firm:
Toshihiko Ishikawa



 
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