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1. 发明专利

JPH10253582A MOLTEN METAL PROBE 失效
公开(公告)号：JPH10253582A
公开(公告)日：1998-09-25
申请号：JP7051997
申请日：1997-03-07
申请人： KAWASO DENKI KOGYO , IWASE MASANORI
发明人： IWASE MASANORI , GOMYO KENICHI , IGAWA HISAO
IPC分类号： G01N27/411 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To provide a practically superior probe that is a molten metal probe used for a device for measuring dissolved oxygen or dissolved substance element in a molten metal. SOLUTION: In an oxygen sensor 3 with a reference electrode 5 that consists of a reference substance 5a being filled into a cylindrical room 4c that faces a reference part 4b of a solid electrolyte element 4 and an internal electrode 6 consisting of a metal rod 6a that is filled into a reference substance 5b, a sealing agent that is filled into the cylindrical room 4c is in a four-layer lamination structure consisting of a stable protection layer 8 that is selected from Al2 O3 powder and/or ZrO2 powder, an oxygen adsorption layer 9 that is selected from carbide powder and/or carbide powder, a relaxation layer 10 that is selected from crystal wool and/or alumina wool and/or ceramic wool, and a concretion layer 11 that is made of fire-resistance cement.

2. 发明专利

JPH10185863A MEASURING METHOD FOR CONCENTRATION OF SOLUTE ELEMENT IN MOLTEN METAL 失效
公开(公告)号：JPH10185863A
公开(公告)日：1998-07-14
申请号：JP35622896
申请日：1996-12-24
申请人： KAWASO DENKI KOGYO , IWASE MASANORI
发明人： IWASE MASANORI , GOMYO KENICHI
IPC分类号： G01N27/411 , G01N20060101 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To obtain a measuring method by which the concentration itself of an element as an object to be measured can be measured, by using an electrochemical sensor, which measures the activity of the object to be measured in molten metal and computing the concentration by using a specific expression on the basis of a detected electromotive force and on the basis of the temperature of the molten metal. SOLUTION: An electrochemical sensor, which measures the activity of an object to be measured in a molten metal is used in such a way that a solid electrolyte, which is oxygen ion-conductive and an inorganic substance containing the oxide of an element identical to an element as an object to be measured, with which a subelectrode or the solid electrolyte is to be coated are combined or that a solid electrolyte, which contains the oxide of the element identical to the element as the object to be measured and which is oxygen ion-conductive is used. Then, on the basis of an electromotive force E detected by a sensor and on the basis of the temperature T of a liquid metal, the concentration [%M] of the element as the object to be measured is computed by an expression: log[%M]+C0 [%M]=C1 +C2 (E/T)+C3 /T-ΣCi[%X] (where C0 , C1 , C2 , C3 and Ci represent constant, and [%X] represents a solute element other tham a component M in the molten metal).

3. 发明专利

JPH0510919A SILICON-CONCENTRATION MEASURING METHOD 失效
公开(公告)号：JPH0510919A
公开(公告)日：1993-01-19
申请号：JP18522291
申请日：1991-06-28
申请人： IWASE MASANORI , KAWASO DENKI KOGYO
发明人： IWASE MASANORI , SAKAGUCHI IKUHEI , GOMYO KENICHI
IPC分类号： G01N27/411 , G01N27/416
摘要： PURPOSE:To make it possible to measure not the activity of silicon but the concentration of silicon itself by detecting electromotive force and temperature with a sensor, and detecting the concentration of the silicon by the specified expression based on the electromotive force and the temperature. CONSTITUTION:An electrochemical-type silicon sensor measures the activity of silicon in molten iron by using the combination of solid electrolyte of zirconia and either of a secondary electrode or inorganic material containing SiO2, which covers the ziroconia, or solid electrolyte of zirconia containing SiO2. Electromotive force and temperature are detected with a sensor, and the concentration of the silicon is detected by the expression based on the electromotive force and the temperature. In the expression, ci, ai and bi are constants, E is the electromotive force and T is the temperature. In this way, not the silicon activity in a conventional method but the silicon concentration itself can be measured based on the detected electromotive force and the temperature.

4. 发明专利

JPH04346068A METHOD FOR SAMPLING SPECIMEN OF MOLTEN STEEL IN REFINING FACILITY OF SPECIAL STEEL 失效
公开(公告)号：JPH04346068A
公开(公告)日：1992-12-01
申请号：JP14947491
申请日：1991-05-24
申请人： KAWASO DENKI KOGYO
发明人： GOMYO KENICHI
IPC分类号： G01N33/20
摘要： PURPOSE:To sample a coagulation specimen which is suited for analysis by an equipment by storing a denitriding agent in a sample specimen container and then allowing nitrogen within a welded steel to react with the denitrogen agent. CONSTITUTION:A denitriding agent is housed within a sample specimen container previously when sampling a special steel which is refined by blowing nitrogen gas in and then is dipped into the molten steel. Nitrogen within the molten steel which flew into the container reacts with a denitriding agent and then is fixed into a coagulated specimen as a nitrogen compound or is floated and separated. As a result, when the specimen is coagulated, only nitrogen below a saturation solubility exists and no cavity is formed within the specimen since no gas is generated. The denitriding agent uses one single substance or two or more complexes which are selected from Al, Ti, Zr, Tr, Hf, Si, V, Ce, Se, B, and Nb and a coagulated specimen which is suited for analysis of an equipment can be sampled by setting the amount of use to a value above 0.5wt.% and below 5wt.% for the weight of the sample.

5. 发明专利

JPH10253581A METHOD AND DEVICE FOR CONTINUOUSLY MEASURING AMOUNT OF OXYGEN IN MOLTEN METAL 失效
公开(公告)号：JPH10253581A
公开(公告)日：1998-09-25
申请号：JP7051897
申请日：1997-03-07
申请人： KAWASO DENKI KOGYO , NIPPON STEEL CORP
发明人： IWASE MASANORI , INOUE MAMORU , AMADA KATSUMI , GOMYO KENICHI , IGAWA HISAO
IPC分类号： G01N27/411
摘要： PROBLEM TO BE SOLVED: To provide a method and device for continuously measuring the amount of oxygen of a molten metal having a low oxygen content. SOLUTION: Dimension X is a measurement part 13a and a reference part 13b at both edges of an element 12 is configured largely by a solid electrolyte element 12 in the shape of a rod of long length and the temperature of the reference part 13b is maintained at a temperature lower than that of the measurement part 13a, thus suppressing an oxygen transmission speed J that is transmitted toward the molten metal. Further, a thermoelectromotive force Ec that is generated at the solid electrolyte element due to the temperature difference between the measurement part 13a and the reference part 13b is detected and the thermoelectromotive force Ec is subtracted from a measured thermoelectromotive force E0 , thus obtaining a value Em of a target electromotive force based on an oxygen partial pressure difference at both edges of the solid electrolyte element 13 and measuring the amount of dissolved oxygen in the molten metal based on the value Em.

6. 发明专利

JPH0560726A MEASURING DEVICE OF CONSTITUENT IN MOLTEN METAL 失效
公开(公告)号：JPH0560726A
公开(公告)日：1993-03-12
申请号：JP24683391
申请日：1991-08-30
申请人： KAWASO DENKI KOGYO
发明人： IWASE MASANORI , SAKAGUCHI IKUHEI , GOMYO KENICHI
IPC分类号： G01N27/411 , G01N33/20
摘要： PURPOSE:To ensure a balanced state of divided voltage on a three-phase interface of a molten metal/a subelectrode/a solid electrolyte in a sensor element and to obtain a quick response and an excellent waveform in a measuring device of a constituent of a subelectrode type. CONSTITUTION:A measurement stabilizing means 28 containing a mixture oxide which has an oxide of an element to be measured and/or an inorganic compound containing the oxide of the element to be measured, as a main constituent, is provided between a sensor element 23 provided with a subelectrode and fireproof cement 27 supporting the sensor element 23.

7. 发明专利

JPH0712650A RADIATION THERMOMETER DEVICE IN CONTINUOUSLY MEASURING DEVICE FOR TEMPERATURE OF MOLTEN METAL 失效
公开(公告)号：JPH0712650A
公开(公告)日：1995-01-17
申请号：JP18003293
申请日：1993-06-25
申请人： KAWASO DENKI KOGYO , NIPPON STEEL CORP
发明人： SHIMA SHOZO , KONDO TAKUMI , SAKAGUCHI IKUHEI , GOMYO KENICHI , INOUE SHIGERU
IPC分类号： G01J5/02 , G01J5/00 , G01J5/10
摘要： PURPOSE:To improve responsibility, eliminate the production of gas in a radiation thermometer observation channel and make exact measurement by unitizing an endurance component of a remote measurement device and providing a cooling channel and a cooling clamber therein. CONSTITUTION:A radiation thermometer device comprises an inner pipe 7 composed of a remote measurement device 6 and an alumina porcelaneous pipe and an outer pipe 8 made of alumina graphite. In a case where the inner and outer pipes 7, 8 are consumed, the inner pipe 7 and/or the outer pipe 8 can be easily exchanged for the device 6 and the device 6 can be repeatedly used as an endurance component. A refrigerant supply opening 32 such cooling air is provided in an amplificaytion box 24 and supplied refrigerant passes a refrigerant flow passage 33 formed in a heat resistant flexible tube 12 through the inside of the amplification box 24. Thereby heat resistant fiber 11 and an optical system setting part 9 can be always surely cooled and normal temperature measurement is made possible.

8. 发明专利

JPH0674837A METHOD AND DEVICE FOR DETECTING HEAT FLUX OF MOLD FOR CASTING 失效
公开(公告)号：JPH0674837A
公开(公告)日：1994-03-18
申请号：JP14872292
申请日：1992-05-15
申请人： KAWASO DENKI KOGYO , NIPPON STEEL CORP
发明人： OKUMURA HARUHIKO , TSUTSUMI KAZUHIKO , FUKUDA ATSUSHI , OMURA YASUMASA , SAKAGUCHI IKUHEI , GOMYO KENICHI , IGAWA OSAMU
IPC分类号： B22D11/16 , G01K7/02 , G01K17/08 , G01K17/20
摘要： PURPOSE:To detect the heat flux flowing to the thickness direction of a wall part, by inserting in a hole of the mold wall part a sensor in which a metal of a different kind is joined to an end of a metal bar of the same material as a mold for casting, and by connecting the metal piece of the different kind to the hole bottom. CONSTITUTION:A sensor 11 comprises a metal bar 12 of the same material as a mold M and a metal piece 13 of a different kind secured to an end thereof and is inserted in a hole 14 made from the outside of a mold wall part W to the thickness direction, and the piece 13 is joined to the bottom of the hole 14. Thermocouples are constructed by the wall part W to the metal piece 13, and the piece 13 to the metal bar 12 respectively, and consequently a differential thermocouple is formed. Therefore, since electromotive force detected by an electromotive detecting means 26 is measured as the difference of the electromotive forces of two contacts (both sides of the metal piece 13), the temperature difference thereof can be detected. The heat flux flowing within the sensor 11 is found from a prescribed equation by using the temperature difference. The heat flux of a point to be measured within the wall part W can be detected, because the measured value of the heat flow is proportioned to the heat flux within the wall part W.

9. 发明专利

JPS63191056A APPARATUS FOR MEASURING CONCENTRATION OF SILICON IN MOLTEN METAL 失效
公开(公告)号：JPS63191056A
公开(公告)日：1988-08-08
申请号：JP2335387
申请日：1987-02-02
申请人： KAWASO DENKI KOGYO
发明人： GOMYO KENICHI
IPC分类号： G01N27/416 , G01N27/27 , G01N27/411 , G01N33/20
摘要： PURPOSE:To stabilize the output of a sensor by eliminating the variation in silicon activity due to the variation in the amount of carbon in a molten metal specimen, by providing a carbon supply means to the circumference of a silicon sensor element. CONSTITUTION:A silicon sensor element 1, a molten metal electrode 6 and a thermometric element 8 are embedded and held in refractory cement 10. The silicon sensor element 1 is constituted by providing a reference electrode in a cylindrical body formed of a solid electrolyte 2 having oxygen ion conductivity and an auxiliary electrode having silicon oxide films mounted thereto in a spot form to the outer surface of the cylindrical body. Then, the silicon sensor element 1, the molten metal electrode 6 and the thermometric element 8 are surrounded by a partition body 15 provided with opening parts 16a, 16b. For example, by forming the partition body 15 from carbon graphite, carbon in the specimen stagnated in a molten metal stagnation chamber 17 can be brought to a saturated state and the variation in silicon activity due to the variation in the amount of carbon in the specimen can be eliminated.

10. 发明专利

JPH10170344A RADIATION-TEMPERATURE MEASURING METHOD 失效
公开(公告)号：JPH10170344A
公开(公告)日：1998-06-26
申请号：JP32882396
申请日：1996-12-09
申请人： KAWASO DENKI KOGYO , CHUGAI RO KOGYO KAISHA LTD
发明人： GOMYO KENICHI , HIGASHIYAMA DAISUKE , TANABE MASAO
IPC分类号： G01J5/60
摘要： PROBLEM TO BE SOLVED: To make it possible to measure a temperature with high accuracy in a wide temperature range by a method wherein the logarithmic value of an emissivity at every wavelength is expressed by the relational expression of a luminance temperature detected at every wavelength and the expression is set up simultaneously with the logarithmic expression of an emissivity which is expressed by Wien's expression and by Plank's second contact. SOLUTION: Luminance temperatures from beams of light of wavelengths λ1 , α2 , which are radiated from an object to be measured are designated as T1 , T2 , and emissivities at the wavelengths α1 , λ2 are designated as ε1 , ε2 . When a true temperature to be found is designated as T, the logarithm of an emissivity is expressed as Expression I by using Wien's expression of a thermal radiation (where C represents Plank's second constant). At this time, a logarithmic emissivity is expressed recursively as Expression II (where (i) represents 1 or 2, (j) represents the order of an expression such as Aj , Bj or the like, and C represents a constant). When the wavelength λ1 is fixed to, e.g. 1μm, the term of Bi or the like is a constant, and a multiple order expression about only a temperature is obtained as in Expression III (where C represents a constant). Expression I and Expression II are set up simultaneously, the value of (j) is changed to 1 or 2, and a temperature is found as a simple expression or a quadratic expression. Therefore, the temperature close to a true temperature can be measured in a wide range.

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