JP5862101B2 - 溶鋼中炭素濃度の分析方法および分析装置 - Google Patents
溶鋼中炭素濃度の分析方法および分析装置 Download PDFInfo
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- JP5862101B2 JP5862101B2 JP2011174942A JP2011174942A JP5862101B2 JP 5862101 B2 JP5862101 B2 JP 5862101B2 JP 2011174942 A JP2011174942 A JP 2011174942A JP 2011174942 A JP2011174942 A JP 2011174942A JP 5862101 B2 JP5862101 B2 JP 5862101B2
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- molten steel
- laser
- pulse light
- laser pulse
- carbon concentration
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- 229910000831 Steel Inorganic materials 0.000 title claims description 106
- 239000010959 steel Substances 0.000 title claims description 106
- 229910052799 carbon Inorganic materials 0.000 title claims description 37
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 31
- 238000000034 method Methods 0.000 title claims description 16
- 238000004458 analytical method Methods 0.000 claims description 17
- 230000005284 excitation Effects 0.000 claims description 10
- 230000001678 irradiating effect Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 9
- 239000003517 fume Substances 0.000 description 6
- 238000001533 laser emission spectroscopy Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 5
- 238000004611 spectroscopical analysis Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000010813 internal standard method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000013076 target substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/718—Laser microanalysis, i.e. with formation of sample plasma
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- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Description
始めに、図1を参照して、本発明の一実施形態である溶鋼中炭素濃度の分析装置の構成について説明する。
次に、図2を参照して、集光レンズ12の焦点位置から溶鋼Sの表面までの距離f−lと集光レンズ12の焦点距離fとの関係について説明する。
次に、図3を参照して、レーザパルス光LBのパワー密度の炭素濃度の分析精度に対する影響について説明する。
10 レーザ発振器
11 反射鏡
12 集光レンズ
13 集光器
14 光ファイバ
15 分光分析器
P レーザ誘起プラズマ
S 溶鋼
Claims (2)
Priority Applications (1)
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JP2011174942A JP5862101B2 (ja) | 2011-08-10 | 2011-08-10 | 溶鋼中炭素濃度の分析方法および分析装置 |
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JP2011174942A JP5862101B2 (ja) | 2011-08-10 | 2011-08-10 | 溶鋼中炭素濃度の分析方法および分析装置 |
Publications (2)
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JP2013036926A JP2013036926A (ja) | 2013-02-21 |
JP5862101B2 true JP5862101B2 (ja) | 2016-02-16 |
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JP2011174942A Active JP5862101B2 (ja) | 2011-08-10 | 2011-08-10 | 溶鋼中炭素濃度の分析方法および分析装置 |
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JP (1) | JP5862101B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103900999B (zh) * | 2014-03-25 | 2016-06-22 | 钢研纳克检测技术有限公司 | 激光诱导光谱测量钢件渗碳层的分析方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61140842A (ja) * | 1984-12-14 | 1986-06-27 | Kawasaki Steel Corp | 流動状態の金属、絶縁物の連続分析装置 |
JP3058030B2 (ja) * | 1994-04-27 | 2000-07-04 | 日本鋼管株式会社 | レーザー発光分光分析方法および装置 |
US6784429B2 (en) * | 2002-04-19 | 2004-08-31 | Energy Research Company | Apparatus and method for in situ, real time measurements of properties of liquids |
JP2004053465A (ja) * | 2002-07-22 | 2004-02-19 | Jfe Steel Kk | レーザ多段励起発光分光分析方法及びその装置 |
JP2006300819A (ja) * | 2005-04-22 | 2006-11-02 | Jfe Steel Kk | 溶融金属のレーザ発光分光分析方法および装置 |
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