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公开(公告)号：US12203864B2
公开(公告)日：2025-01-21
申请号：US18082822
申请日：2022-12-16
Applicant: NCS Testing Technology CO.,LTD
Inventor： Yunhai Jia , Liang Sheng , Liangjing Yuan , Lei Yu , Qiaochu Zhang
Abstract: A spark spectrometry for inclusions content distribution on the surface of large size metallic materials, comprising the following steps: analyzing the surface of large-size metallic materials by spark discharge continuous excitation scanning, obtaining a mixture intensity distribution data of the solid solution and inclusions of an element on the surface of the large-size metallic materials; the relative frequency distribution diagram of spectral intensity is subjected to peak fitting of normal distribution and Gumbel distribution, obtaining an extreme value distribution data of spectral intensity of the inclusions; a size information of the inclusions in a small sample and that of the largest inclusions are correlated with the spectral intensity distribution data of inclusions, obtaining a result of content distribution of the inclusions on the surface of the large size metallic materials. The invention can quickly obtain accurate distribution information of inclusions of various elements on the surface of metallic materials.
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公开(公告)号：US12270745B1
公开(公告)日：2025-04-08
申请号：US18782044
申请日：2024-07-24
Inventor： Yunhai Jia , Liang Sheng , Lei Yu , Liangjing Yuan , Shanshan Xu
Abstract: A single pulse spectral statistical analysis method for particle size distribution of inclusions on a surface of a metal material is provided. The method includes the following steps: analyzing a surface of an oversized metal material through single pulse discharge continuous excitation scanning to obtain mixed intensity data of spectral intensities of solid solution and inclusions of an inclusion element on the surface of the oversized metal material and a relative frequency distribution diagram; performing peak fitting processing on the relative frequency distribution diagram of the mixed spectral intensities to obtain a relative frequency distribution diagram of the spectral intensities of the inclusion; and correlating particle size information of inclusions of a small sample with distribution data of the spectral intensities of the inclusions to determine a corresponding relation between the particle sizes and the spectral intensities of the inclusions, thereby obtaining a particle size distribution result.
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公开(公告)号：US11754503B1
公开(公告)日：2023-09-12
申请号：US17975636
申请日：2022-10-28
Applicant: NCS TESTING TECHNOLOGY CO., LTD
Inventor： Yunhai Jia , Haizhou Wang , Liangjing Yuan , Xiaofen Zhang , Qiaochu Zhang , Lei Yu , Liang Sheng , Baibing Li
Abstract: A measurement deviation correction method and system for spark discharge analysis of a large-size metal material includes: performing line-by-line scanning measurement on a surface of the material to obtain a line component content, performing in-line correction on the line component content by adopting a line linear fitting model, and performing inter-line correction by taking a total average value obtained by eliminating an extreme value from a line component content distribution to obtain an inter-line corrected component content; performing column-by-column scanning measurement on the surface of the material to obtain a column component content, performing in-column correction on the column component content by adopting a column linear fitting model, and performing inter-column correction by taking a total average value obtained by eliminating an extreme value from the column component content; and coupling the inter-line corrected component content and the inter-column corrected component content to obtain an optimal measurement component content.
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4.发明公开公开(公告)号：US20240159680A1
公开(公告)日：2024-05-16
申请号：US18082822
申请日：2022-12-16
Applicant: NCS Testing Technology CO.,LTD
Inventor： Yunhai Jia , Liang Sheng , Liangjing Yuan , Lei Yu , Qiaochu Zhang
CPC classification number: G01N21/67 , G01J3/06 , G01J3/457 , G01N21/31 , G01N21/8851 , G01N21/93 , G01N33/2022 , G01J2003/061 , G01N2021/3196
Abstract: A spark spectrometry for inclusions content distribution on the surface of large size metallic materials, comprising the following steps: analyzing the surface of large-size metallic materials by spark discharge continuous excitation scanning, obtaining a mixture intensity distribution data of the solid solution and inclusions of an element on the surface of the large-size metallic materials; the relative frequency distribution diagram of spectral intensity is subjected to peak fitting of normal distribution and Gumbel distribution, obtaining an extreme value distribution data of spectral intensity of the inclusions; a size information of the inclusions in a small sample and that of the largest inclusions are correlated with the spectral intensity distribution data of inclusions, obtaining a result of content distribution of the inclusions on the surface of the large size metallic materials. The invention can quickly obtain accurate distribution information of inclusions of various elements on the surface of metallic materials.
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