Title:
STEEL BAR SURFACE FLAW EVALUATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/188556
Kind Code:
A1
Abstract:
The purpose of the present invention is to enable the character of a flaw that has occurred on a steel bar to be evaluated using a plurality of pieces of flaw detection data obtained by performing flaw detection on the steel bar surface. The present invention is a surface flaw evaluation method for evaluating the character of a surface flaw on a steel bar. A correlation between the character of a surface flaw on a steel bar and features of a data pattern obtained by performing flaw detection along the surface of the steel bar is determined in advance. The character of a surface flaw on a steel bar (1) to be evaluated, which is a steel bar of which the character of a surface flaw is to be evaluated, is specified using the correlation and the features of a data pattern obtained by performing the flaw detection on the steel bar (1) to be evaluated.
Inventors:
WATANABE KENTO (JP)
Application Number:
PCT/JP2022/045291
Publication Date:
October 05, 2023
Filing Date:
December 08, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
G01N27/82
Foreign References:
| JP2012047710A | 2012-03-08 | |||
| JPS61265563A | 1986-11-25 | |||
| JPH05142171A | 1993-06-08 | |||
| JPH0882616A | 1996-03-26 | |||
| JPS5546161A | 1980-03-31 | |||
| JP2010185868A | 2010-08-26 | |||
| JP2005207858A | 2005-08-04 | |||
| JP2005003574A | 2005-01-06 | |||
| JPH0957315A | 1997-03-04 | |||
| US20020116980A1 | 2002-08-29 |
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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