Title:
METHOD FOR MEASURING ALLOYING DEGREE AND/OR PLATING COATING AMOUNT OF ZINC-PLATED STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2018/034089
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method for measuring the alloying degree and/or plating coating amount of a zinc-plated steel sheet, wherein the method can be used to measure the alloying degree and/or plating coating amount of a zinc-plated steel sheet accurately and quickly in a nondestructive manner. The method for measuring the alloying degree and/or plating coating amount of a zinc-plated steel sheet using X-ray diffraction, comprises: a step for irradiating, with X-rays, a sample having a zinc plating layer provided on a surface thereof; a step for performing X-ray diffraction measurement on phases constituting the zinc-plated layer and the underlying steel sheet of the sample, to obtain an X-ray diffraction profile; and a step for performing multivariate analysis on the obtained X-ray diffraction profile, and from the result of the multivariate analysis, calculating an alloying degree and/or a plating coating amount in the zinc-plated layer.
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Inventors:
AOYAMA TOMOHIRO (JP)
KINOSHIRO SATOSHI (JP)
INOSE MASAO (JP)
OSHIGE TAKAHIKO (JP)
YAMADA KATSUMI (JP)
KINOSHIRO SATOSHI (JP)
INOSE MASAO (JP)
OSHIGE TAKAHIKO (JP)
YAMADA KATSUMI (JP)
Application Number:
PCT/JP2017/025643
Publication Date:
February 22, 2018
Filing Date:
July 14, 2017
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C23C2/06; C23C2/40; G01N23/205; G01N23/207
Foreign References:
| JPH068791B2 | 1994-02-02 | |||
| JPH07174716A | 1995-07-14 | |||
| JPS5612314B2 | 1981-03-19 | |||
| JP2014055353A | 2014-03-27 |
Other References:
JUNJI KAWABE ET AL.: "Continuous measurement of Fe content in galvannealed coating", KAWASAKI STEEL TECHNICAL REPORT, vol. 18, no. 2, 1986, pages 129 - 135
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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