RU2008102370A - METHOD FOR PERFORMING AN ANALYSIS OF LIQUID METAL AND DEVICE INTENDED FOR USE IN THIS METHOD - Google Patents

METHOD FOR PERFORMING AN ANALYSIS OF LIQUID METAL AND DEVICE INTENDED FOR USE IN THIS METHOD Download PDF

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Publication number
RU2008102370A
RU2008102370A RU2008102370/28A RU2008102370A RU2008102370A RU 2008102370 A RU2008102370 A RU 2008102370A RU 2008102370/28 A RU2008102370/28 A RU 2008102370/28A RU 2008102370 A RU2008102370 A RU 2008102370A RU 2008102370 A RU2008102370 A RU 2008102370A
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Russia
Prior art keywords
bath
pipe system
casing
liquid metal
gas
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RU2008102370/28A
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Russian (ru)
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ВРИС Пауль Александер ДЕ (NL)
ВРИС Пауль Александер ДЕ
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Алерис Свитзерленд ГмбХ (CH)
Алерис Свитзерленд ГмбХ
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Publication of RU2008102370A publication Critical patent/RU2008102370A/en

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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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • 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
    • G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
    • G01N21/69—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence specially adapted for fluids, e.g. molten metal
    • 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
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • G01N2021/151—Gas blown
    • 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
    • G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
    • G01N21/69—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence specially adapted for fluids, e.g. molten metal
    • G01N2021/695—Molten metals

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  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

1. Способ анализа состава ванны (1), содержащей жидкий металл, при котором пучок (15) лазерного излучения направляют на поверхность ванны (1) и в котором по меньшей мере часть металла образует пробу для анализа, причем струю (10, 11, 12) очищающего газа направляют по меньшей мере на место, в котором пучок (15) лазерного излучения встречается с ванной (1), отличающийся тем, что скорости и направление струи (10, 11, 12) очищающего газа выбирают таким образом, что поверхность ванны (1), прилегающая к месту, в котором пучок лазерного излучения встречается с ней, имеет выпуклый мениск (6), так что примеси на поверхности ванны (1) в этом месте удаляются при продувке. ! 2. Способ по п.1, отличающийся тем, что погружная трубная система (2) с верхней стороной, нижней стороной и кожухом (3) по меньшей мере частично помещается в ванну (1), и струю очищающего газа подают в погружную трубную систему поверх ванны (1) и направляют на ванну по меньшей мере в том месте, в котором пучок (15) лазерного излучения встречается с ванной (1). ! 3. Способ по п.2, отличающийся тем, что очищающий газ в погружной трубной системе (2) выпускают из погружной трубной системы под поверхностью ванны (1). ! 4. Способ по одному из пп.1-3, отличающийся тем, что жидким металлом является жидкий алюминиевый сплав. ! 5. Устройство, предназначенное для использования в способе анализа химического состава ванны (1), содержащей жидкий металл, снабженное погружной трубной системой (2), состоящей из верхней стороны, нижней стороны и кожуха (3), имеющего внутреннюю стенку и наружную стенку, источником генерирования пучка (15) лазерного излучения и трубой (4) для подачи газа в погружную трубную систему (2), отличающеес�1. A method for analyzing the composition of a bath (1) containing liquid metal, in which a beam (15) of laser radiation is directed to the surface of the bath (1) and in which at least part of the metal forms a sample for analysis, and the jet (10, 11, 12 ) of the cleaning gas is directed at least to the place where the beam (15) of laser radiation meets the bath (1), characterized in that the speeds and direction of the jet (10, 11, 12) of the cleaning gas are chosen in such a way that the surface of the bath ( 1), adjacent to the place where the laser beam meets it, has a convex meniscus (6), so that impurities on the surface of the bath (1) at this place are removed by blowing. ! 2. The method according to claim 1, characterized in that the immersion pipe system (2) with the top side, the bottom side and the casing (3) is at least partially placed in the bath (1), and the purge gas jet is fed into the immersion pipe system over bath (1) and directed to the bath at least in the place where the laser beam (15) meets the bath (1). ! 3. Method according to claim 2, characterized in that the scrubbing gas in the immersion pipe system (2) is discharged from the immersion pipe system below the surface of the bath (1). ! 4. Method according to one of claims 1 to 3, characterized in that the liquid metal is liquid aluminum alloy. ! 5. A device intended for use in a method for analyzing the chemical composition of a bath (1) containing liquid metal, equipped with a submersible pipe system (2) consisting of an upper side, a lower side and a casing (3) having an inner wall and an outer wall, a source generating a beam (15) of laser radiation and a pipe (4) for supplying gas to a submersible pipe system (2), which differs

Claims (8)

1. Способ анализа состава ванны (1), содержащей жидкий металл, при котором пучок (15) лазерного излучения направляют на поверхность ванны (1) и в котором по меньшей мере часть металла образует пробу для анализа, причем струю (10, 11, 12) очищающего газа направляют по меньшей мере на место, в котором пучок (15) лазерного излучения встречается с ванной (1), отличающийся тем, что скорости и направление струи (10, 11, 12) очищающего газа выбирают таким образом, что поверхность ванны (1), прилегающая к месту, в котором пучок лазерного излучения встречается с ней, имеет выпуклый мениск (6), так что примеси на поверхности ванны (1) в этом месте удаляются при продувке.1. A method for analyzing the composition of a bath (1) containing liquid metal, in which a laser beam (15) is directed to the surface of the bath (1) and in which at least part of the metal forms a sample for analysis, and the stream (10, 11, 12 ) the cleaning gas is directed at least to the place where the laser beam (15) meets the bath (1), characterized in that the speed and direction of the jet (10, 11, 12) of the cleaning gas are selected so that the surface of the bath ( 1) adjacent to the place where the laser beam meets it, having r convex meniscus (6), so that impurities on the surface of the bath (1) at that location is removed under a stream. 2. Способ по п.1, отличающийся тем, что погружная трубная система (2) с верхней стороной, нижней стороной и кожухом (3) по меньшей мере частично помещается в ванну (1), и струю очищающего газа подают в погружную трубную систему поверх ванны (1) и направляют на ванну по меньшей мере в том месте, в котором пучок (15) лазерного излучения встречается с ванной (1).2. The method according to claim 1, characterized in that the immersion pipe system (2) with the upper side, lower side and the casing (3) is at least partially placed in the bath (1), and a stream of cleaning gas is fed into the immersion pipe system over bath (1) and sent to the bath at least at the point where the laser beam (15) meets the bath (1). 3. Способ по п.2, отличающийся тем, что очищающий газ в погружной трубной системе (2) выпускают из погружной трубной системы под поверхностью ванны (1).3. The method according to claim 2, characterized in that the cleaning gas in the submersible pipe system (2) is discharged from the submersible pipe system under the surface of the bath (1). 4. Способ по одному из пп.1-3, отличающийся тем, что жидким металлом является жидкий алюминиевый сплав.4. The method according to one of claims 1 to 3, characterized in that the liquid metal is a liquid aluminum alloy. 5. Устройство, предназначенное для использования в способе анализа химического состава ванны (1), содержащей жидкий металл, снабженное погружной трубной системой (2), состоящей из верхней стороны, нижней стороны и кожуха (3), имеющего внутреннюю стенку и наружную стенку, источником генерирования пучка (15) лазерного излучения и трубой (4) для подачи газа в погружную трубную систему (2), отличающееся тем, что труба (4) для подачи газа имеет проход с уменьшенным диаметром для того, чтобы по меньшей мере локально повышать скорость потока очищающего газа в направлении ванны (1) и пропускать струю (11, 12) газа (3) таким образом, что во время использования устройства ванна (1) внутри кожуха (3) образует выпуклый мениск (6), вдоль которого протекает очищающий газ.5. A device intended for use in a method for analyzing the chemical composition of a bath (1) containing liquid metal, equipped with an immersion pipe system (2) consisting of an upper side, a lower side and a casing (3) having an inner wall and an outer wall, a source generating a laser beam (15) and a pipe (4) for supplying gas to the immersion pipe system (2), characterized in that the pipe (4) for supplying gas has a passage with a reduced diameter in order to at least locally increase the flow rate gas cleaning and in the direction of the bath (1) and to pass a stream (11, 12) of gas (3) so that during use of the device, the bath (1) inside the casing (3) forms a convex meniscus (6) along which the cleaning gas flows. 6. Устройство по п.5, отличающееся тем, что кожух (3) погружной трубной системы (2) снабжен в той его части, которая при использовании погружается в ванну (1), выпускными отверстиями (20) и/или прорезями (21), размещенными на нижней стороне кожуха.6. The device according to claim 5, characterized in that the casing (3) of the immersion pipe system (2) is provided in that part, which, when used, is immersed in the bath (1), outlet openings (20) and / or slots (21) placed on the underside of the casing. 7. Устройство по п.6, отличающееся тем, что прорези (21) и/или отверстия (20) проходят с поперечным сечением, которое увеличивается по направлению от внутренней части кожуха (3) к его наружной части.7. The device according to claim 6, characterized in that the slots (21) and / or holes (20) pass with a cross section that increases in the direction from the inner part of the casing (3) to its outer part. 8. Устройство по одному из пп.5-7, отличающееся тем, что по меньшей мере часть внутренней стенки кожуха (3) погружной трубной системы (2) выполнена из материала, который не смачивается жидким металлом. 8. The device according to one of claims 5 to 7, characterized in that at least part of the inner wall of the casing (3) of the immersion pipe system (2) is made of a material that is not wetted by liquid metal.
RU2008102370/28A 2005-07-26 2006-07-24 METHOD FOR PERFORMING AN ANALYSIS OF LIQUID METAL AND DEVICE INTENDED FOR USE IN THIS METHOD RU2008102370A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1029612A NL1029612C2 (en) 2005-07-26 2005-07-26 Method for analyzing liquid metal and device for use therein.
NL1029612 2005-07-26

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US (1) US20070023110A1 (en)
EP (1) EP1907828A1 (en)
CN (1) CN101263380A (en)
CA (1) CA2614790A1 (en)
FR (1) FR2889313A1 (en)
NL (1) NL1029612C2 (en)
RU (1) RU2008102370A (en)
WO (1) WO2007012440A1 (en)

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CN101263380A (en) 2008-09-10
US20070023110A1 (en) 2007-02-01
CA2614790A1 (en) 2007-02-01
EP1907828A1 (en) 2008-04-09
FR2889313A1 (en) 2007-02-02
NL1029612C2 (en) 2007-01-29
WO2007012440A1 (en) 2007-02-01

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