Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
  • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
  • G01N27/403—Cells and electrode assemblies
  • G01N27/406—Cells and probes with solid electrolytes
  • G01N27/411—Cells and probes with solid electrolytes for investigating or analysing of liquid metals
  • G01N27/4115—Composition or fabrication of the electrodes and coatings thereon, e.g. catalysts
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
  • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
  • G01N27/403—Cells and electrode assemblies
  • G01N27/406—Cells and probes with solid electrolytes
  • G01N27/411—Cells and probes with solid electrolytes for investigating or analysing of liquid metals
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
  • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
  • G01N27/403—Cells and electrode assemblies
  • G01N27/406—Cells and probes with solid electrolytes
  • G01N27/411—Cells and probes with solid electrolytes for investigating or analysing of liquid metals
  • G01N27/4118—Means for protecting the electrolyte or the electrodes
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
  • G01N33/20—Metals

Definitions

• the present invention uses a solid xenon conductive element having oxygen ion conductivity to form nitrogen-containing light bubbles, and is used to measure molten steel, molten copper, etc.
• the amount of dissolved element in molten metal ⁇ This is related to the modification of the sensor to be measured.Background SX
• the amount of element in molten metal is a very important component in order to make the product quality a specified component.
• methods of measuring the amount of bitumen by using a sensor composed of oxygen / dilute foam as an element directly in molten metal have been implemented. I made it.
• the structure of this bubble is a Mo electrode (5) —a molten electrode—a solid electrolyte (1) —a standard electrode (3) —a Mo electrode ( 4 ). Utilizes the fact that the electromotive force proportional to the partial pressure difference between the electrodes is generated between the electrodes *
• the ⁇ electrode (3) generally Ni ⁇ Ni O, Mo ⁇ Mo 0 2, Cr ⁇ Cr 2 0 mixture of such 3 were for feces, or Komotoi on-conductive solid conductive ⁇ (1) and to the Zr0 2 groups, Ru using also was molded metal ⁇ products such as Th0 2 group constant 3 ⁇ 4 shape. Furthermore, the temperature of the molten metal is measured simultaneously with the thermocouple (6) installed in the sensor ⁇ ). Check housing,
• CMPI (8) is a connector, (9) is an iron cap, (1Q is a ceramic: 7-perper fire sleeve, Haveno, one sleeve) is there ) .
• the amount of the solution can be calculated by the following formula derived from Nernst.
• Fig. L Various types of sensors are provided by the method of starting (CmV), but as shown in Fig. L, the material (3) is a solid element with a closed pipe at one end.
• the electromotive force waveform is due to the electrical electrical phenomena as shown in Fig. 2.
• Figure 1 shows that when a large beak occurs, the transition to the potato state occurs after the rise, but Fig. 2 shows the Xianyuan, which is the period of dysregulation.
• the figure horizontal axis is the power of time ⁇ of 0 under the figure to s is found we leave for steel ⁇ Tsu ⁇ and electromotive force 3 ⁇ 4 table sum of electromotive force wave 3 ⁇ 4 reached the flat ⁇ state Tsu -.
• 3 ⁇ 4 a ⁇ Disclosure-The coating agent of the present invention can be used in a room.
• the painting force can be the same as that of the conventional technical mouth using an organic binder. Te I ring layer strength. a purpose of enhancing, 0 being the earthenware pots by formulating in combination was ⁇ or a large addition 3 ⁇ 4 of ⁇ side of the a 2 0 3
• FIG. 3 shows an example of the measurement waveform of the sensor used
• Fig. 3 shows an example of the measurement waveform of the sensor using an element coated with a conventional coating agent
• Fig. 4, Fig. 5, Fig. 6, 7, 3 and 9 show examples of measured waveforms when using the sensor according to the present invention
• FIG. 10 shows the amounts of dissolved element and metal A measured according to the present invention. and a; graph which shows the ® function gow engaged, first FIG. 1 is a grayed La off that shows the ⁇ with ⁇ Min 3 ⁇ 4 time to measure the same Ku measurement ⁇ amount c
• (1) is a solid electrolyte element
• Each JC charge was combined at the ratio shown in Table 1, and water was added to make a slurry of S 0 ⁇ 3 ⁇ 4 degree, then coated so as to spread evenly on the surface of the ZrO 2 CMgO) element with one end closed tube ⁇ After drying the fingers in the chamber and drying for 24 hours at 130, these elements were melted using 20 high wart inducer. 2 0
• the element subjected to tinning was graded into a sensor, and the elemental amount of rnm was measured.
• Example I r
• the preparation and application method of the tenting agent is the same as in Example I.
• As an attached binder there is PVAC polyvinyl alcohol (alcohol), and 30 tying agents are used for each carbon level, 10 pcs for each carbon level. I performed an experiment
• the measurement conditions are as follows.
• the amount of nitrogen in molten steel depends on the amount of granulated graphite added, and the surface of the steel bath is sealed with gas.
• Figures 3 to 6 show examples of typical measurements.
• Fig. 4 shows an element obtained by coating F with a minus one
• Fig. 5 shows an element obtained by coating G.
• Fig. 6 shows the case of using the element coated with H.
• Fig. 6 shows a quantitative evaluation of the c- measured oscillator waveform according to the following class. Table 4c
• the electromotive force waveforms are classified into the following classes, and weighted from 1 to 6 points are averaged.)) The smaller the number, the better the results were obtained. It is. .
• Table 5 shows the time until Hirai Hi.
• the coating agent of the present kigi since the coating agent of the present kigi does not produce a long life on the marsh, its effect can be sufficiently obtained and a good result can be obtained.
• the time required for the measurement is as follows.
• the tenting agent can be shortened by 5 to 9 seconds, and it is a large effective material in that the measurement at the production site can reduce the temperature of the hot work.
• the coating agent H has a slightly smaller improvement effect than the other coating agents, but it is considered that this is related to the generation of bubbles described in Example 1. a 2 0 3 -! with Ru 3 ⁇ 4 to aO system, until the low melting point compound glass of the Ru flat ⁇ electromotive force waveform obtained because the inhibit diffusion of the plain in the molten steel one sensing interface This is likely to be due to the gradual decline that takes a long time-[Example 3.]
• FIG. 7 shows tilling !? : Measuring the later 30 Q ton ⁇ medium molten steel ⁇
• Example C-One coating agent I Fig. 8 and Fig. 9 show the 250 ton medium molten steel during H gas escape.
• Example of measurement [Figure S shows -One Coating Agent I, Figure & Coating shows Coating Agent. It shows the relationship between the amount of sulfur obtained by measurement with the device and the amount of gold / wing ⁇ : SoZAX) obtained by analyzing the samples taken at the same life. Fig. 11 shows the relationship between the dissolved amount and the time required for tidal setting. ⁇ It also shows that the same positive effect as that achieved in 50 mm (small volume) can be obtained by measurement at steelmaking sites. Business interests.
• the sensor related to the hon-ki is used for measuring the amount of element in the molten metal such as molten metal. Suitable for use when the measurement needs to be performed over a long period of time.

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
• Pathology (AREA)
• General Physics & Mathematics (AREA)
• Immunology (AREA)
• Physics & Mathematics (AREA)
• Analytical Chemistry (AREA)
• Biochemistry (AREA)
• General Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• Molecular Biology (AREA)
• Engineering & Computer Science (AREA)
• Food Science & Technology (AREA)
• Medicinal Chemistry (AREA)
• Measuring Oxygen Concentration In Cells (AREA)
• Investigating And Analyzing Materials By Characteristic Methods (AREA)
• Treatment Of Steel In Its Molten State (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

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ID=14835162

Family Applications (1)

Country Status (11)

Cited By (1)

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Citations (4)

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• 1980
  • 1980-09-05 JP JP55122412A patent/JPS5746155A/ja active Granted
• 1981
  • 1981-09-03 AU AU75360/81A patent/AU545427B2/en not_active Ceased
  • 1981-09-03 NL NLAANVRAGE8120325,A patent/NL184079C/xx not_active IP Right Cessation
  • 1981-09-03 KR KR1019810003281A patent/KR870000021B1/ko not_active Expired
  • 1981-09-03 GB GB8213050A patent/GB2094485B/en not_active Expired
  • 1981-09-03 EP EP81902453A patent/EP0059222B1/en not_active Expired
  • 1981-09-03 US US06/367,227 patent/US4451350A/en not_active Expired - Lifetime
  • 1981-09-03 WO PCT/JP1981/000214 patent/WO1982000892A1/ja not_active Ceased
  • 1981-09-03 BR BR8108777A patent/BR8108777A/pt not_active IP Right Cessation
  • 1981-09-03 DE DE19813152318 patent/DE3152318T5/de active Pending
  • 1981-12-03 SE SE8107224A patent/SE455823B/sv not_active IP Right Cessation

Patent Citations (4)

Non-Patent Citations (1)

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