Title:
EMISSION SPECTROSCOPIC ANALYSIS METHOD FOR SB IN METAL MATERIAL, METHOD FOR MEASURING SB CONCENTRATION IN MOLTEN STEEL DURING REFINING, AND METHOD FOR MANUFACTURING STEEL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/199591
Kind Code:
A1
Abstract:
The present invention provides an emission spectroscopic analysis method for measuring, in a speedy and highly accurate manner, the concentration of Sb contained in a metal material (in particular, a metal material containing a large amount of iron such as an iron/steel material). In this emission spectroscopic analysis method, spark discharge is repeatedly produced between a metal material and an electrode facing the metal material to produce excitation emission, the excitation emission is spectrally dispersed, the emission intensity IM of a matrix element of the metal material and the emission intensity ISb of Sb contained in the metal material are measured in order to obtain the ratio ISb/IM of the emission intensity ISb relative to the emission intensity IM, and the above spark discharge is performed at a discharge energy below 0.10 J.
Inventors:
INOSE MASAO (JP)
FURUYA RYOSUKE (JP)
FURUYA RYOSUKE (JP)
Application Number:
PCT/JP2023/005194
Publication Date:
October 19, 2023
Filing Date:
February 15, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
G01N21/67
Foreign References:
| JP2014215113A | 2014-11-17 | |||
| JPS5063989A | 1975-05-30 | |||
| JP2014020839A | 2014-02-03 | |||
| JP2603998B2 | 1997-04-23 | |||
| JPS6211130A | 1987-01-20 |
Other References:
QIN, XIAOFENG: "Determination of residual elements in bearing steel by spark discharge atomic emission spectrometry", YEJIN FENXI, YEJIN FENXI BIANJIBU, vol. 39, no. 12, 1 January 2019 (2019-01-01), pages 50 - 54, XP009549562, ISSN: 1000-7571, DOI: 10.13228/j.boyuan.issn1000-7571.010733
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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